/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 16:52:58,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 16:52:58,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 16:52:58,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 16:52:58,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 16:52:58,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 16:52:58,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 16:52:58,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 16:52:58,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 16:52:58,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 16:52:58,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 16:52:58,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 16:52:58,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 16:52:58,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 16:52:58,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 16:52:58,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 16:52:58,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-09 16:52:58,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 16:52:58,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 16:52:58,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 16:52:58,587 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-07-09 16:52:58,626 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 16:52:58,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 16:52:58,626 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 16:52:58,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 16:52:58,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 16:52:58,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 16:52:58,629 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 16:52:58,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 16:52:58,630 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 16:52:58,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 16:52:58,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 16:52:58,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 16:52:58,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 16:52:58,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 16:52:58,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 16:52:58,631 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 16:52:58,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 16:52:58,632 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 16:52:58,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 16:52:58,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 16:52:58,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 16:52:58,632 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 16:52:58,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 16:52:58,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:52:58,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 16:52:58,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 16:52:58,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 16:52:58,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 16:52:58,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 16:52:58,633 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 16:52:58,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 16:52:58,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 16:52:58,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 16:52:58,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 16:52:59,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 16:52:59,003 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 16:52:59,003 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 16:52:59,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-07-09 16:52:59,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ceedf3f5/8cdc56aac1f94c588e5fb38d92cf0ac5/FLAG7258fd523 [2021-07-09 16:52:59,689 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 16:52:59,689 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-07-09 16:52:59,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ceedf3f5/8cdc56aac1f94c588e5fb38d92cf0ac5/FLAG7258fd523 [2021-07-09 16:53:00,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ceedf3f5/8cdc56aac1f94c588e5fb38d92cf0ac5 [2021-07-09 16:53:00,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 16:53:00,073 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 16:53:00,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 16:53:00,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 16:53:00,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 16:53:00,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:53:00" (1/1) ... [2021-07-09 16:53:00,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13fa2588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:00, skipping insertion in model container [2021-07-09 16:53:00,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:53:00" (1/1) ... [2021-07-09 16:53:00,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 16:53:00,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 16:53:00,642 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-07-09 16:53:00,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:53:00,673 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 16:53:00,714 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-07-09 16:53:00,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:53:00,806 INFO L208 MainTranslator]: Completed translation [2021-07-09 16:53:00,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:00 WrapperNode [2021-07-09 16:53:00,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 16:53:00,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 16:53:00,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 16:53:00,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 16:53:00,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:00" (1/1) ... [2021-07-09 16:53:00,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:00" (1/1) ... [2021-07-09 16:53:00,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 16:53:00,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 16:53:00,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 16:53:00,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 16:53:00,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:00" (1/1) ... [2021-07-09 16:53:00,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:00" (1/1) ... [2021-07-09 16:53:00,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:00" (1/1) ... [2021-07-09 16:53:00,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:00" (1/1) ... [2021-07-09 16:53:00,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:00" (1/1) ... [2021-07-09 16:53:00,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:00" (1/1) ... [2021-07-09 16:53:00,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:00" (1/1) ... [2021-07-09 16:53:00,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 16:53:00,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 16:53:00,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 16:53:00,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 16:53:00,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:53:01,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 16:53:01,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-09 16:53:01,044 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-07-09 16:53:01,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-07-09 16:53:01,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 16:53:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 16:53:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-07-09 16:53:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-07-09 16:53:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 16:53:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 16:53:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 16:53:01,049 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 16:53:01,657 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 16:53:01,658 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-07-09 16:53:01,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:53:01 BoogieIcfgContainer [2021-07-09 16:53:01,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 16:53:01,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 16:53:01,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 16:53:01,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 16:53:01,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 04:53:00" (1/3) ... [2021-07-09 16:53:01,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2514964d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:53:01, skipping insertion in model container [2021-07-09 16:53:01,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:00" (2/3) ... [2021-07-09 16:53:01,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2514964d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:53:01, skipping insertion in model container [2021-07-09 16:53:01,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:53:01" (3/3) ... [2021-07-09 16:53:01,667 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2021-07-09 16:53:01,672 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 16:53:01,672 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 16:53:01,672 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-07-09 16:53:01,673 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 16:53:01,715 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,716 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,716 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,716 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,716 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,716 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,716 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,717 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,718 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,718 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,718 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,718 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,718 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,719 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,719 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,719 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,719 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,720 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,720 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,720 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,720 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,720 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,720 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,720 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,720 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,721 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,721 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,721 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,721 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,721 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,721 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,721 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,722 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,722 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,722 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,722 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,723 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,723 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,723 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,723 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,723 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,723 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,723 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,724 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,724 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,724 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,724 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,724 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,724 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,725 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,725 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,725 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,725 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,725 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,725 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,725 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,726 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,726 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,726 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,726 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,726 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,727 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,727 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,727 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,727 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,727 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,727 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,727 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,728 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,728 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,728 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,728 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,728 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,728 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,728 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,728 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,729 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,729 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,729 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,729 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,729 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,729 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,729 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,730 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,730 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,730 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,730 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,730 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,730 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,731 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,731 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,731 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,731 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,731 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,732 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,732 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,732 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,732 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,733 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,733 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,735 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,736 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,736 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,737 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,742 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,742 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,742 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,742 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,743 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,743 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,743 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,743 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,743 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,743 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,743 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,743 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,746 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,746 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,746 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,746 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,746 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,747 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,747 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,747 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,747 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,747 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,752 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,753 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,781 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,782 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,782 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,782 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:01,790 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-09 16:53:01,809 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-07-09 16:53:01,825 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:53:01,825 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:53:01,825 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:53:01,826 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:53:01,826 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:53:01,826 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:53:01,826 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:53:01,826 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:53:01,837 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 166 places, 170 transitions, 362 flow [2021-07-09 16:53:02,028 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8174 states, 8164 states have (on average 2.8350073493385595) internal successors, (23145), 8173 states have internal predecessors, (23145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:02,059 INFO L276 IsEmpty]: Start isEmpty. Operand has 8174 states, 8164 states have (on average 2.8350073493385595) internal successors, (23145), 8173 states have internal predecessors, (23145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:02,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-07-09 16:53:02,070 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:02,071 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:02,071 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:02,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:02,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1624038893, now seen corresponding path program 1 times [2021-07-09 16:53:02,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:02,084 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694478828] [2021-07-09 16:53:02,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:02,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:02,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:02,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694478828] [2021-07-09 16:53:02,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694478828] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:02,552 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:02,552 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:53:02,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428118511] [2021-07-09 16:53:02,556 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:53:02,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:02,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:53:02,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:53:02,608 INFO L87 Difference]: Start difference. First operand has 8174 states, 8164 states have (on average 2.8350073493385595) internal successors, (23145), 8173 states have internal predecessors, (23145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:02,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:02,973 INFO L93 Difference]: Finished difference Result 7776 states and 21622 transitions. [2021-07-09 16:53:02,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:53:02,975 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-07-09 16:53:02,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:03,067 INFO L225 Difference]: With dead ends: 7776 [2021-07-09 16:53:03,067 INFO L226 Difference]: Without dead ends: 6398 [2021-07-09 16:53:03,069 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 84.8ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:53:03,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6398 states. [2021-07-09 16:53:03,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6398 to 6397. [2021-07-09 16:53:03,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6397 states, 6390 states have (on average 2.769170579029734) internal successors, (17695), 6396 states have internal predecessors, (17695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:03,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6397 states to 6397 states and 17695 transitions. [2021-07-09 16:53:03,476 INFO L78 Accepts]: Start accepts. Automaton has 6397 states and 17695 transitions. Word has length 36 [2021-07-09 16:53:03,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:03,477 INFO L482 AbstractCegarLoop]: Abstraction has 6397 states and 17695 transitions. [2021-07-09 16:53:03,478 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:03,478 INFO L276 IsEmpty]: Start isEmpty. Operand 6397 states and 17695 transitions. [2021-07-09 16:53:03,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-07-09 16:53:03,479 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:03,479 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:03,479 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 16:53:03,479 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:03,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:03,482 INFO L82 PathProgramCache]: Analyzing trace with hash -652027726, now seen corresponding path program 1 times [2021-07-09 16:53:03,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:03,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712344008] [2021-07-09 16:53:03,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:03,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:03,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:03,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:03,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712344008] [2021-07-09 16:53:03,621 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712344008] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:03,621 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:03,621 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:53:03,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391108431] [2021-07-09 16:53:03,622 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:53:03,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:03,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:53:03,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:53:03,623 INFO L87 Difference]: Start difference. First operand 6397 states and 17695 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:03,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:03,819 INFO L93 Difference]: Finished difference Result 6399 states and 17697 transitions. [2021-07-09 16:53:03,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:53:03,819 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-07-09 16:53:03,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:03,854 INFO L225 Difference]: With dead ends: 6399 [2021-07-09 16:53:03,854 INFO L226 Difference]: Without dead ends: 6399 [2021-07-09 16:53:03,855 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 74.4ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:53:03,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6399 states. [2021-07-09 16:53:04,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6399 to 6395. [2021-07-09 16:53:04,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6395 states, 6389 states have (on average 2.7692909688527156) internal successors, (17693), 6394 states have internal predecessors, (17693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:04,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6395 states to 6395 states and 17693 transitions. [2021-07-09 16:53:04,081 INFO L78 Accepts]: Start accepts. Automaton has 6395 states and 17693 transitions. Word has length 42 [2021-07-09 16:53:04,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:04,081 INFO L482 AbstractCegarLoop]: Abstraction has 6395 states and 17693 transitions. [2021-07-09 16:53:04,081 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 6395 states and 17693 transitions. [2021-07-09 16:53:04,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 16:53:04,083 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:04,083 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:04,083 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 16:53:04,084 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:04,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:04,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1629089851, now seen corresponding path program 1 times [2021-07-09 16:53:04,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:04,085 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378730616] [2021-07-09 16:53:04,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:04,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:04,238 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:04,238 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378730616] [2021-07-09 16:53:04,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378730616] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:04,238 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:04,238 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:53:04,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734728787] [2021-07-09 16:53:04,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:53:04,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:04,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:53:04,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:53:04,240 INFO L87 Difference]: Start difference. First operand 6395 states and 17693 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:04,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:04,601 INFO L93 Difference]: Finished difference Result 9382 states and 25923 transitions. [2021-07-09 16:53:04,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 16:53:04,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-09 16:53:04,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:04,647 INFO L225 Difference]: With dead ends: 9382 [2021-07-09 16:53:04,647 INFO L226 Difference]: Without dead ends: 9382 [2021-07-09 16:53:04,647 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 99.4ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:53:04,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9382 states. [2021-07-09 16:53:04,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9382 to 7177. [2021-07-09 16:53:04,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7177 states, 7172 states have (on average 2.7711935303959843) internal successors, (19875), 7176 states have internal predecessors, (19875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:05,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7177 states to 7177 states and 19875 transitions. [2021-07-09 16:53:05,026 INFO L78 Accepts]: Start accepts. Automaton has 7177 states and 19875 transitions. Word has length 60 [2021-07-09 16:53:05,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:05,026 INFO L482 AbstractCegarLoop]: Abstraction has 7177 states and 19875 transitions. [2021-07-09 16:53:05,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:05,027 INFO L276 IsEmpty]: Start isEmpty. Operand 7177 states and 19875 transitions. [2021-07-09 16:53:05,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-09 16:53:05,030 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:05,030 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:05,030 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 16:53:05,031 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:05,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:05,031 INFO L82 PathProgramCache]: Analyzing trace with hash 157318948, now seen corresponding path program 1 times [2021-07-09 16:53:05,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:05,032 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353430898] [2021-07-09 16:53:05,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:05,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:05,131 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:05,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353430898] [2021-07-09 16:53:05,131 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353430898] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:05,131 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:05,131 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:53:05,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428930219] [2021-07-09 16:53:05,132 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:53:05,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:05,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:53:05,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:53:05,133 INFO L87 Difference]: Start difference. First operand 7177 states and 19875 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:05,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:05,452 INFO L93 Difference]: Finished difference Result 10164 states and 27958 transitions. [2021-07-09 16:53:05,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:53:05,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-07-09 16:53:05,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:05,482 INFO L225 Difference]: With dead ends: 10164 [2021-07-09 16:53:05,482 INFO L226 Difference]: Without dead ends: 8547 [2021-07-09 16:53:05,483 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 82.8ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:53:05,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8547 states. [2021-07-09 16:53:05,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8547 to 8253. [2021-07-09 16:53:05,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8253 states, 8249 states have (on average 2.7752454843011276) internal successors, (22893), 8252 states have internal predecessors, (22893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:05,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8253 states to 8253 states and 22893 transitions. [2021-07-09 16:53:05,792 INFO L78 Accepts]: Start accepts. Automaton has 8253 states and 22893 transitions. Word has length 66 [2021-07-09 16:53:05,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:05,792 INFO L482 AbstractCegarLoop]: Abstraction has 8253 states and 22893 transitions. [2021-07-09 16:53:05,793 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:05,793 INFO L276 IsEmpty]: Start isEmpty. Operand 8253 states and 22893 transitions. [2021-07-09 16:53:05,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-09 16:53:05,804 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:05,804 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:05,804 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 16:53:05,804 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:05,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:05,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1636068507, now seen corresponding path program 1 times [2021-07-09 16:53:05,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:05,805 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408583278] [2021-07-09 16:53:05,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:05,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:05,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:05,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408583278] [2021-07-09 16:53:05,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408583278] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:05,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:05,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 16:53:05,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723188429] [2021-07-09 16:53:05,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 16:53:05,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:05,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 16:53:05,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 16:53:05,906 INFO L87 Difference]: Start difference. First operand 8253 states and 22893 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:05,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:05,954 INFO L93 Difference]: Finished difference Result 3039 states and 8148 transitions. [2021-07-09 16:53:05,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 16:53:05,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-07-09 16:53:05,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:05,963 INFO L225 Difference]: With dead ends: 3039 [2021-07-09 16:53:05,964 INFO L226 Difference]: Without dead ends: 3039 [2021-07-09 16:53:05,964 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 32.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:53:05,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3039 states. [2021-07-09 16:53:06,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3039 to 3039. [2021-07-09 16:53:06,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3039 states, 3037 states have (on average 2.6829107672044783) internal successors, (8148), 3038 states have internal predecessors, (8148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:06,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3039 states to 3039 states and 8148 transitions. [2021-07-09 16:53:06,052 INFO L78 Accepts]: Start accepts. Automaton has 3039 states and 8148 transitions. Word has length 80 [2021-07-09 16:53:06,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:06,055 INFO L482 AbstractCegarLoop]: Abstraction has 3039 states and 8148 transitions. [2021-07-09 16:53:06,055 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:06,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3039 states and 8148 transitions. [2021-07-09 16:53:06,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:06,065 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:06,065 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:06,065 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 16:53:06,066 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:06,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:06,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1449889473, now seen corresponding path program 1 times [2021-07-09 16:53:06,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:06,067 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775191036] [2021-07-09 16:53:06,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:07,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:07,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:07,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775191036] [2021-07-09 16:53:07,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775191036] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:07,184 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:07,184 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:53:07,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753927553] [2021-07-09 16:53:07,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:53:07,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:07,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:53:07,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:53:07,186 INFO L87 Difference]: Start difference. First operand 3039 states and 8148 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:09,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:09,377 INFO L93 Difference]: Finished difference Result 5169 states and 13859 transitions. [2021-07-09 16:53:09,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 16:53:09,378 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:09,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:09,391 INFO L225 Difference]: With dead ends: 5169 [2021-07-09 16:53:09,391 INFO L226 Difference]: Without dead ends: 5119 [2021-07-09 16:53:09,392 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 1671.2ms TimeCoverageRelationStatistics Valid=430, Invalid=1550, Unknown=0, NotChecked=0, Total=1980 [2021-07-09 16:53:09,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5119 states. [2021-07-09 16:53:09,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5119 to 5029. [2021-07-09 16:53:09,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5029 states, 5027 states have (on average 2.709966182613885) internal successors, (13623), 5028 states have internal predecessors, (13623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:09,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5029 states to 5029 states and 13623 transitions. [2021-07-09 16:53:09,527 INFO L78 Accepts]: Start accepts. Automaton has 5029 states and 13623 transitions. Word has length 113 [2021-07-09 16:53:09,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:09,528 INFO L482 AbstractCegarLoop]: Abstraction has 5029 states and 13623 transitions. [2021-07-09 16:53:09,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:09,528 INFO L276 IsEmpty]: Start isEmpty. Operand 5029 states and 13623 transitions. [2021-07-09 16:53:09,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:09,547 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:09,547 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:09,547 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 16:53:09,547 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:09,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:09,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1737210557, now seen corresponding path program 1 times [2021-07-09 16:53:09,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:09,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624608913] [2021-07-09 16:53:09,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:10,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:10,074 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:10,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624608913] [2021-07-09 16:53:10,075 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624608913] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:10,075 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:10,075 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:53:10,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535060936] [2021-07-09 16:53:10,075 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:53:10,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:10,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:53:10,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:53:10,076 INFO L87 Difference]: Start difference. First operand 5029 states and 13623 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:10,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:10,972 INFO L93 Difference]: Finished difference Result 6888 states and 18056 transitions. [2021-07-09 16:53:10,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-09 16:53:10,973 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:10,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:10,991 INFO L225 Difference]: With dead ends: 6888 [2021-07-09 16:53:10,991 INFO L226 Difference]: Without dead ends: 6888 [2021-07-09 16:53:10,992 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 603.7ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-07-09 16:53:11,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6888 states. [2021-07-09 16:53:11,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6888 to 6238. [2021-07-09 16:53:11,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6238 states, 6236 states have (on average 2.6727068633739575) internal successors, (16667), 6237 states have internal predecessors, (16667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:11,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 16667 transitions. [2021-07-09 16:53:11,186 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 16667 transitions. Word has length 113 [2021-07-09 16:53:11,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:11,186 INFO L482 AbstractCegarLoop]: Abstraction has 6238 states and 16667 transitions. [2021-07-09 16:53:11,186 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:11,186 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 16667 transitions. [2021-07-09 16:53:11,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:11,203 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:11,203 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:11,204 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 16:53:11,204 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:11,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:11,204 INFO L82 PathProgramCache]: Analyzing trace with hash 595826675, now seen corresponding path program 2 times [2021-07-09 16:53:11,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:11,205 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823732866] [2021-07-09 16:53:11,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:11,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:11,720 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:11,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823732866] [2021-07-09 16:53:11,721 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823732866] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:11,721 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:11,721 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:53:11,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627655951] [2021-07-09 16:53:11,721 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:53:11,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:11,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:53:11,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:53:11,724 INFO L87 Difference]: Start difference. First operand 6238 states and 16667 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:13,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:13,296 INFO L93 Difference]: Finished difference Result 8934 states and 23517 transitions. [2021-07-09 16:53:13,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:53:13,297 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:13,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:13,321 INFO L225 Difference]: With dead ends: 8934 [2021-07-09 16:53:13,322 INFO L226 Difference]: Without dead ends: 8934 [2021-07-09 16:53:13,322 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1202.2ms TimeCoverageRelationStatistics Valid=282, Invalid=710, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:13,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8934 states. [2021-07-09 16:53:13,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8934 to 6673. [2021-07-09 16:53:13,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6673 states, 6671 states have (on average 2.6871533503222906) internal successors, (17926), 6672 states have internal predecessors, (17926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:13,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6673 states to 6673 states and 17926 transitions. [2021-07-09 16:53:13,532 INFO L78 Accepts]: Start accepts. Automaton has 6673 states and 17926 transitions. Word has length 113 [2021-07-09 16:53:13,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:13,532 INFO L482 AbstractCegarLoop]: Abstraction has 6673 states and 17926 transitions. [2021-07-09 16:53:13,532 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:13,532 INFO L276 IsEmpty]: Start isEmpty. Operand 6673 states and 17926 transitions. [2021-07-09 16:53:13,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:13,549 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:13,549 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:13,549 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 16:53:13,550 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:13,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:13,550 INFO L82 PathProgramCache]: Analyzing trace with hash -602159759, now seen corresponding path program 3 times [2021-07-09 16:53:13,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:13,550 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128440446] [2021-07-09 16:53:13,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:13,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:13,967 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:13,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128440446] [2021-07-09 16:53:13,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128440446] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:13,967 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:13,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:53:13,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019211766] [2021-07-09 16:53:13,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:53:13,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:13,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:53:13,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:53:13,968 INFO L87 Difference]: Start difference. First operand 6673 states and 17926 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:14,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:14,727 INFO L93 Difference]: Finished difference Result 7870 states and 20519 transitions. [2021-07-09 16:53:14,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-09 16:53:14,727 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:14,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:14,740 INFO L225 Difference]: With dead ends: 7870 [2021-07-09 16:53:14,740 INFO L226 Difference]: Without dead ends: 7870 [2021-07-09 16:53:14,741 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 540.7ms TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-07-09 16:53:14,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7870 states. [2021-07-09 16:53:14,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7870 to 6756. [2021-07-09 16:53:14,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6756 states, 6754 states have (on average 2.6840390879478826) internal successors, (18128), 6755 states have internal predecessors, (18128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:14,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6756 states to 6756 states and 18128 transitions. [2021-07-09 16:53:14,939 INFO L78 Accepts]: Start accepts. Automaton has 6756 states and 18128 transitions. Word has length 113 [2021-07-09 16:53:14,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:14,939 INFO L482 AbstractCegarLoop]: Abstraction has 6756 states and 18128 transitions. [2021-07-09 16:53:14,940 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:14,940 INFO L276 IsEmpty]: Start isEmpty. Operand 6756 states and 18128 transitions. [2021-07-09 16:53:14,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:14,965 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:14,965 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:14,965 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-09 16:53:14,965 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:14,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:14,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1199987993, now seen corresponding path program 4 times [2021-07-09 16:53:14,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:14,966 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543032998] [2021-07-09 16:53:14,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:15,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:15,476 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:15,476 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543032998] [2021-07-09 16:53:15,476 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543032998] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:15,476 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:15,476 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:53:15,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758484928] [2021-07-09 16:53:15,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:53:15,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:15,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:53:15,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:53:15,478 INFO L87 Difference]: Start difference. First operand 6756 states and 18128 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:16,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:16,912 INFO L93 Difference]: Finished difference Result 8661 states and 22562 transitions. [2021-07-09 16:53:16,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:53:16,913 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:16,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:16,929 INFO L225 Difference]: With dead ends: 8661 [2021-07-09 16:53:16,930 INFO L226 Difference]: Without dead ends: 8661 [2021-07-09 16:53:16,930 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1166.0ms TimeCoverageRelationStatistics Valid=291, Invalid=765, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:53:16,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8661 states. [2021-07-09 16:53:17,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8661 to 6736. [2021-07-09 16:53:17,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6736 states, 6734 states have (on average 2.684585684585685) internal successors, (18078), 6735 states have internal predecessors, (18078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:17,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6736 states to 6736 states and 18078 transitions. [2021-07-09 16:53:17,128 INFO L78 Accepts]: Start accepts. Automaton has 6736 states and 18078 transitions. Word has length 113 [2021-07-09 16:53:17,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:17,129 INFO L482 AbstractCegarLoop]: Abstraction has 6736 states and 18078 transitions. [2021-07-09 16:53:17,129 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:17,129 INFO L276 IsEmpty]: Start isEmpty. Operand 6736 states and 18078 transitions. [2021-07-09 16:53:17,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:17,144 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:17,144 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:17,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-09 16:53:17,144 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:17,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:17,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1772154405, now seen corresponding path program 5 times [2021-07-09 16:53:17,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:17,145 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691741736] [2021-07-09 16:53:17,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:17,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:17,527 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:17,527 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691741736] [2021-07-09 16:53:17,527 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691741736] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:17,527 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:17,527 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:53:17,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514267320] [2021-07-09 16:53:17,528 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:53:17,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:17,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:53:17,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:53:17,529 INFO L87 Difference]: Start difference. First operand 6736 states and 18078 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:18,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:18,171 INFO L93 Difference]: Finished difference Result 7260 states and 19171 transitions. [2021-07-09 16:53:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:53:18,172 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:18,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:18,183 INFO L225 Difference]: With dead ends: 7260 [2021-07-09 16:53:18,183 INFO L226 Difference]: Without dead ends: 7260 [2021-07-09 16:53:18,184 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 504.4ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-07-09 16:53:18,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7260 states. [2021-07-09 16:53:18,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7260 to 6564. [2021-07-09 16:53:18,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6564 states, 6562 states have (on average 2.6927765925022857) internal successors, (17670), 6563 states have internal predecessors, (17670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:18,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6564 states to 6564 states and 17670 transitions. [2021-07-09 16:53:18,349 INFO L78 Accepts]: Start accepts. Automaton has 6564 states and 17670 transitions. Word has length 113 [2021-07-09 16:53:18,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:18,349 INFO L482 AbstractCegarLoop]: Abstraction has 6564 states and 17670 transitions. [2021-07-09 16:53:18,349 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:18,349 INFO L276 IsEmpty]: Start isEmpty. Operand 6564 states and 17670 transitions. [2021-07-09 16:53:18,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:18,364 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:18,364 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:18,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-09 16:53:18,364 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:18,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:18,365 INFO L82 PathProgramCache]: Analyzing trace with hash -144181387, now seen corresponding path program 6 times [2021-07-09 16:53:18,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:18,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669991436] [2021-07-09 16:53:18,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:18,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:18,798 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:18,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669991436] [2021-07-09 16:53:18,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669991436] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:18,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:18,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:53:18,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740131607] [2021-07-09 16:53:18,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:53:18,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:18,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:53:18,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:53:18,800 INFO L87 Difference]: Start difference. First operand 6564 states and 17670 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:19,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:19,970 INFO L93 Difference]: Finished difference Result 7717 states and 20100 transitions. [2021-07-09 16:53:19,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:53:19,970 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:19,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:19,982 INFO L225 Difference]: With dead ends: 7717 [2021-07-09 16:53:19,982 INFO L226 Difference]: Without dead ends: 7717 [2021-07-09 16:53:19,982 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 855.7ms TimeCoverageRelationStatistics Valid=280, Invalid=776, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:53:20,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7717 states. [2021-07-09 16:53:20,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7717 to 6414. [2021-07-09 16:53:20,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6414 states, 6412 states have (on average 2.7014971927635685) internal successors, (17322), 6413 states have internal predecessors, (17322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:20,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6414 states to 6414 states and 17322 transitions. [2021-07-09 16:53:20,138 INFO L78 Accepts]: Start accepts. Automaton has 6414 states and 17322 transitions. Word has length 113 [2021-07-09 16:53:20,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:20,138 INFO L482 AbstractCegarLoop]: Abstraction has 6414 states and 17322 transitions. [2021-07-09 16:53:20,139 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:20,139 INFO L276 IsEmpty]: Start isEmpty. Operand 6414 states and 17322 transitions. [2021-07-09 16:53:20,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:20,153 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:20,153 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:20,153 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-09 16:53:20,153 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:20,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:20,154 INFO L82 PathProgramCache]: Analyzing trace with hash -23799659, now seen corresponding path program 2 times [2021-07-09 16:53:20,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:20,154 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265680005] [2021-07-09 16:53:20,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:20,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:20,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:20,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265680005] [2021-07-09 16:53:20,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265680005] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:20,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:20,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:53:20,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569341995] [2021-07-09 16:53:20,838 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:53:20,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:20,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:53:20,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:53:20,839 INFO L87 Difference]: Start difference. First operand 6414 states and 17322 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:22,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:22,848 INFO L93 Difference]: Finished difference Result 11525 states and 31018 transitions. [2021-07-09 16:53:22,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-09 16:53:22,853 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:22,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:22,880 INFO L225 Difference]: With dead ends: 11525 [2021-07-09 16:53:22,880 INFO L226 Difference]: Without dead ends: 11450 [2021-07-09 16:53:22,881 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 1365.6ms TimeCoverageRelationStatistics Valid=421, Invalid=1471, Unknown=0, NotChecked=0, Total=1892 [2021-07-09 16:53:22,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11450 states. [2021-07-09 16:53:23,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11450 to 7725. [2021-07-09 16:53:23,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7725 states, 7723 states have (on average 2.710216237213518) internal successors, (20931), 7724 states have internal predecessors, (20931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:23,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7725 states to 7725 states and 20931 transitions. [2021-07-09 16:53:23,088 INFO L78 Accepts]: Start accepts. Automaton has 7725 states and 20931 transitions. Word has length 113 [2021-07-09 16:53:23,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:23,089 INFO L482 AbstractCegarLoop]: Abstraction has 7725 states and 20931 transitions. [2021-07-09 16:53:23,089 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:23,089 INFO L276 IsEmpty]: Start isEmpty. Operand 7725 states and 20931 transitions. [2021-07-09 16:53:23,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:23,105 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:23,105 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:23,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-09 16:53:23,105 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:23,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:23,106 INFO L82 PathProgramCache]: Analyzing trace with hash -311120743, now seen corresponding path program 7 times [2021-07-09 16:53:23,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:23,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030338387] [2021-07-09 16:53:23,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:23,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:23,590 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:23,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030338387] [2021-07-09 16:53:23,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030338387] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:23,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:23,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:53:23,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643253367] [2021-07-09 16:53:23,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:53:23,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:23,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:53:23,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:53:23,591 INFO L87 Difference]: Start difference. First operand 7725 states and 20931 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:25,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:25,206 INFO L93 Difference]: Finished difference Result 14795 states and 39010 transitions. [2021-07-09 16:53:25,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:53:25,207 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:25,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:25,230 INFO L225 Difference]: With dead ends: 14795 [2021-07-09 16:53:25,230 INFO L226 Difference]: Without dead ends: 14795 [2021-07-09 16:53:25,230 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1177.4ms TimeCoverageRelationStatistics Valid=281, Invalid=711, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:25,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14795 states. [2021-07-09 16:53:25,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14795 to 6777. [2021-07-09 16:53:25,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6777 states, 6775 states have (on average 2.699778597785978) internal successors, (18291), 6776 states have internal predecessors, (18291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:25,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6777 states to 6777 states and 18291 transitions. [2021-07-09 16:53:25,426 INFO L78 Accepts]: Start accepts. Automaton has 6777 states and 18291 transitions. Word has length 113 [2021-07-09 16:53:25,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:25,426 INFO L482 AbstractCegarLoop]: Abstraction has 6777 states and 18291 transitions. [2021-07-09 16:53:25,426 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:25,426 INFO L276 IsEmpty]: Start isEmpty. Operand 6777 states and 18291 transitions. [2021-07-09 16:53:25,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:25,438 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:25,438 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:25,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-09 16:53:25,438 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:25,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:25,439 INFO L82 PathProgramCache]: Analyzing trace with hash -2106935411, now seen corresponding path program 8 times [2021-07-09 16:53:25,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:25,439 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331321767] [2021-07-09 16:53:25,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:25,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:25,848 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:25,848 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331321767] [2021-07-09 16:53:25,848 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331321767] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:25,848 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:25,848 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:53:25,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286571002] [2021-07-09 16:53:25,848 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:53:25,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:25,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:53:25,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:53:25,849 INFO L87 Difference]: Start difference. First operand 6777 states and 18291 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:27,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:27,455 INFO L93 Difference]: Finished difference Result 13428 states and 35322 transitions. [2021-07-09 16:53:27,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:53:27,455 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:27,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:27,484 INFO L225 Difference]: With dead ends: 13428 [2021-07-09 16:53:27,485 INFO L226 Difference]: Without dead ends: 13428 [2021-07-09 16:53:27,485 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1240.8ms TimeCoverageRelationStatistics Valid=290, Invalid=766, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:53:27,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13428 states. [2021-07-09 16:53:27,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13428 to 6477. [2021-07-09 16:53:27,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6477 states, 6475 states have (on average 2.703938223938224) internal successors, (17508), 6476 states have internal predecessors, (17508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:27,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6477 states to 6477 states and 17508 transitions. [2021-07-09 16:53:27,701 INFO L78 Accepts]: Start accepts. Automaton has 6477 states and 17508 transitions. Word has length 113 [2021-07-09 16:53:27,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:27,701 INFO L482 AbstractCegarLoop]: Abstraction has 6477 states and 17508 transitions. [2021-07-09 16:53:27,701 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:27,701 INFO L276 IsEmpty]: Start isEmpty. Operand 6477 states and 17508 transitions. [2021-07-09 16:53:27,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:27,713 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:27,713 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:27,713 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-09 16:53:27,715 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:27,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:27,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1172822233, now seen corresponding path program 3 times [2021-07-09 16:53:27,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:27,716 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31146204] [2021-07-09 16:53:27,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:28,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:28,378 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:28,378 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31146204] [2021-07-09 16:53:28,378 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31146204] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:28,378 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:28,378 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:53:28,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952681663] [2021-07-09 16:53:28,379 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:53:28,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:28,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:53:28,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:53:28,379 INFO L87 Difference]: Start difference. First operand 6477 states and 17508 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:29,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:29,850 INFO L93 Difference]: Finished difference Result 12593 states and 33829 transitions. [2021-07-09 16:53:29,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-09 16:53:29,851 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:29,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:29,871 INFO L225 Difference]: With dead ends: 12593 [2021-07-09 16:53:29,871 INFO L226 Difference]: Without dead ends: 12518 [2021-07-09 16:53:29,872 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 1193.3ms TimeCoverageRelationStatistics Valid=370, Invalid=1270, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 16:53:29,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12518 states. [2021-07-09 16:53:30,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12518 to 7787. [2021-07-09 16:53:30,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7787 states, 7785 states have (on average 2.7116249197174054) internal successors, (21110), 7786 states have internal predecessors, (21110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:30,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7787 states to 7787 states and 21110 transitions. [2021-07-09 16:53:30,057 INFO L78 Accepts]: Start accepts. Automaton has 7787 states and 21110 transitions. Word has length 113 [2021-07-09 16:53:30,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:30,057 INFO L482 AbstractCegarLoop]: Abstraction has 7787 states and 21110 transitions. [2021-07-09 16:53:30,057 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:30,058 INFO L276 IsEmpty]: Start isEmpty. Operand 7787 states and 21110 transitions. [2021-07-09 16:53:30,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:30,068 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:30,069 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:30,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-09 16:53:30,069 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:30,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:30,069 INFO L82 PathProgramCache]: Analyzing trace with hash 885501149, now seen corresponding path program 9 times [2021-07-09 16:53:30,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:30,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020388971] [2021-07-09 16:53:30,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:30,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:30,461 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:30,461 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020388971] [2021-07-09 16:53:30,461 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020388971] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:30,461 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:30,461 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:53:30,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364324894] [2021-07-09 16:53:30,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:53:30,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:30,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:53:30,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:53:30,463 INFO L87 Difference]: Start difference. First operand 7787 states and 21110 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:32,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:32,555 INFO L93 Difference]: Finished difference Result 13725 states and 36011 transitions. [2021-07-09 16:53:32,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-09 16:53:32,555 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:32,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:32,575 INFO L225 Difference]: With dead ends: 13725 [2021-07-09 16:53:32,576 INFO L226 Difference]: Without dead ends: 13725 [2021-07-09 16:53:32,576 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1618.8ms TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2021-07-09 16:53:32,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13725 states. [2021-07-09 16:53:32,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13725 to 6736. [2021-07-09 16:53:32,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6736 states, 6734 states have (on average 2.7096822096822097) internal successors, (18247), 6735 states have internal predecessors, (18247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:32,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6736 states to 6736 states and 18247 transitions. [2021-07-09 16:53:32,759 INFO L78 Accepts]: Start accepts. Automaton has 6736 states and 18247 transitions. Word has length 113 [2021-07-09 16:53:32,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:32,759 INFO L482 AbstractCegarLoop]: Abstraction has 6736 states and 18247 transitions. [2021-07-09 16:53:32,759 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:32,759 INFO L276 IsEmpty]: Start isEmpty. Operand 6736 states and 18247 transitions. [2021-07-09 16:53:32,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:32,769 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:32,769 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:32,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-07-09 16:53:32,769 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:32,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:32,769 INFO L82 PathProgramCache]: Analyzing trace with hash -313376919, now seen corresponding path program 4 times [2021-07-09 16:53:32,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:32,770 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718203193] [2021-07-09 16:53:32,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:33,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:33,415 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:33,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718203193] [2021-07-09 16:53:33,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718203193] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:33,415 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:33,415 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:53:33,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742559846] [2021-07-09 16:53:33,415 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:53:33,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:33,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:53:33,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:53:33,416 INFO L87 Difference]: Start difference. First operand 6736 states and 18247 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:34,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:34,928 INFO L93 Difference]: Finished difference Result 11461 states and 30489 transitions. [2021-07-09 16:53:34,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-09 16:53:34,929 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:34,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:34,948 INFO L225 Difference]: With dead ends: 11461 [2021-07-09 16:53:34,948 INFO L226 Difference]: Without dead ends: 11314 [2021-07-09 16:53:34,949 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 1130.3ms TimeCoverageRelationStatistics Valid=376, Invalid=1346, Unknown=0, NotChecked=0, Total=1722 [2021-07-09 16:53:34,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11314 states. [2021-07-09 16:53:35,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11314 to 8170. [2021-07-09 16:53:35,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8170 states, 8168 states have (on average 2.7173114593535748) internal successors, (22195), 8169 states have internal predecessors, (22195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:35,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8170 states to 8170 states and 22195 transitions. [2021-07-09 16:53:35,101 INFO L78 Accepts]: Start accepts. Automaton has 8170 states and 22195 transitions. Word has length 113 [2021-07-09 16:53:35,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:35,101 INFO L482 AbstractCegarLoop]: Abstraction has 8170 states and 22195 transitions. [2021-07-09 16:53:35,101 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:35,101 INFO L276 IsEmpty]: Start isEmpty. Operand 8170 states and 22195 transitions. [2021-07-09 16:53:35,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:35,112 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:35,112 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:35,112 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-07-09 16:53:35,113 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:35,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:35,113 INFO L82 PathProgramCache]: Analyzing trace with hash -600698003, now seen corresponding path program 10 times [2021-07-09 16:53:35,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:35,113 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727836628] [2021-07-09 16:53:35,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:35,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:35,494 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:35,494 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727836628] [2021-07-09 16:53:35,494 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727836628] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:35,494 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:35,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:53:35,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298578910] [2021-07-09 16:53:35,494 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:53:35,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:35,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:53:35,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:53:35,495 INFO L87 Difference]: Start difference. First operand 8170 states and 22195 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:36,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:36,958 INFO L93 Difference]: Finished difference Result 11812 states and 30824 transitions. [2021-07-09 16:53:36,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:53:36,959 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:36,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:36,977 INFO L225 Difference]: With dead ends: 11812 [2021-07-09 16:53:36,977 INFO L226 Difference]: Without dead ends: 11812 [2021-07-09 16:53:36,977 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1166.8ms TimeCoverageRelationStatistics Valid=314, Invalid=808, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:53:37,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11812 states. [2021-07-09 16:53:37,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11812 to 7992. [2021-07-09 16:53:37,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7992 states, 7990 states have (on average 2.725782227784731) internal successors, (21779), 7991 states have internal predecessors, (21779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:37,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7992 states to 7992 states and 21779 transitions. [2021-07-09 16:53:37,155 INFO L78 Accepts]: Start accepts. Automaton has 7992 states and 21779 transitions. Word has length 113 [2021-07-09 16:53:37,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:37,155 INFO L482 AbstractCegarLoop]: Abstraction has 7992 states and 21779 transitions. [2021-07-09 16:53:37,155 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:37,155 INFO L276 IsEmpty]: Start isEmpty. Operand 7992 states and 21779 transitions. [2021-07-09 16:53:37,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:37,166 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:37,167 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:37,167 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-09 16:53:37,167 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:37,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:37,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1122257639, now seen corresponding path program 5 times [2021-07-09 16:53:37,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:37,168 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809394769] [2021-07-09 16:53:37,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:37,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:37,553 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:37,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809394769] [2021-07-09 16:53:37,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809394769] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:37,553 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:37,553 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:53:37,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775945006] [2021-07-09 16:53:37,553 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:53:37,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:37,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:53:37,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:53:37,554 INFO L87 Difference]: Start difference. First operand 7992 states and 21779 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:38,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:38,637 INFO L93 Difference]: Finished difference Result 10068 states and 27251 transitions. [2021-07-09 16:53:38,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-09 16:53:38,638 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:38,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:38,654 INFO L225 Difference]: With dead ends: 10068 [2021-07-09 16:53:38,654 INFO L226 Difference]: Without dead ends: 10068 [2021-07-09 16:53:38,654 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 842.8ms TimeCoverageRelationStatistics Valid=337, Invalid=995, Unknown=0, NotChecked=0, Total=1332 [2021-07-09 16:53:38,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10068 states. [2021-07-09 16:53:38,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10068 to 9084. [2021-07-09 16:53:38,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9084 states, 9082 states have (on average 2.735410702488439) internal successors, (24843), 9083 states have internal predecessors, (24843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:38,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9084 states to 9084 states and 24843 transitions. [2021-07-09 16:53:38,807 INFO L78 Accepts]: Start accepts. Automaton has 9084 states and 24843 transitions. Word has length 113 [2021-07-09 16:53:38,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:38,807 INFO L482 AbstractCegarLoop]: Abstraction has 9084 states and 24843 transitions. [2021-07-09 16:53:38,807 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:38,807 INFO L276 IsEmpty]: Start isEmpty. Operand 9084 states and 24843 transitions. [2021-07-09 16:53:38,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:38,820 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:38,820 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:38,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-07-09 16:53:38,821 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:38,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:38,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1409578723, now seen corresponding path program 11 times [2021-07-09 16:53:38,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:38,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547187037] [2021-07-09 16:53:38,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:39,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:39,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:39,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547187037] [2021-07-09 16:53:39,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547187037] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:39,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:39,218 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:53:39,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305291346] [2021-07-09 16:53:39,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:53:39,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:39,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:53:39,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:53:39,221 INFO L87 Difference]: Start difference. First operand 9084 states and 24843 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:40,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:40,691 INFO L93 Difference]: Finished difference Result 12446 states and 32499 transitions. [2021-07-09 16:53:40,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:53:40,692 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:40,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:40,719 INFO L225 Difference]: With dead ends: 12446 [2021-07-09 16:53:40,719 INFO L226 Difference]: Without dead ends: 12446 [2021-07-09 16:53:40,720 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1097.7ms TimeCoverageRelationStatistics Valid=279, Invalid=777, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:53:40,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12446 states. [2021-07-09 16:53:40,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12446 to 9088. [2021-07-09 16:53:40,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9088 states, 9086 states have (on average 2.7353070658155403) internal successors, (24853), 9087 states have internal predecessors, (24853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:41,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9088 states to 9088 states and 24853 transitions. [2021-07-09 16:53:41,024 INFO L78 Accepts]: Start accepts. Automaton has 9088 states and 24853 transitions. Word has length 113 [2021-07-09 16:53:41,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:41,027 INFO L482 AbstractCegarLoop]: Abstraction has 9088 states and 24853 transitions. [2021-07-09 16:53:41,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:41,027 INFO L276 IsEmpty]: Start isEmpty. Operand 9088 states and 24853 transitions. [2021-07-09 16:53:41,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:41,045 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:41,045 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:41,045 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-07-09 16:53:41,045 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:41,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:41,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1643771047, now seen corresponding path program 12 times [2021-07-09 16:53:41,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:41,046 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052290820] [2021-07-09 16:53:41,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:41,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:41,436 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:41,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052290820] [2021-07-09 16:53:41,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052290820] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:41,436 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:41,436 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:53:41,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515810310] [2021-07-09 16:53:41,437 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:53:41,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:41,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:53:41,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:53:41,437 INFO L87 Difference]: Start difference. First operand 9088 states and 24853 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:42,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:42,842 INFO L93 Difference]: Finished difference Result 12245 states and 32066 transitions. [2021-07-09 16:53:42,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:53:42,842 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:42,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:42,862 INFO L225 Difference]: With dead ends: 12245 [2021-07-09 16:53:42,863 INFO L226 Difference]: Without dead ends: 12245 [2021-07-09 16:53:42,863 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1079.3ms TimeCoverageRelationStatistics Valid=303, Invalid=819, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:53:42,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12245 states. [2021-07-09 16:53:43,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12245 to 9091. [2021-07-09 16:53:43,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9091 states, 9089 states have (on average 2.7353944328308946) internal successors, (24862), 9090 states have internal predecessors, (24862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:43,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9091 states to 9091 states and 24862 transitions. [2021-07-09 16:53:43,101 INFO L78 Accepts]: Start accepts. Automaton has 9091 states and 24862 transitions. Word has length 113 [2021-07-09 16:53:43,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:43,102 INFO L482 AbstractCegarLoop]: Abstraction has 9091 states and 24862 transitions. [2021-07-09 16:53:43,102 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:43,102 INFO L276 IsEmpty]: Start isEmpty. Operand 9091 states and 24862 transitions. [2021-07-09 16:53:43,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:43,113 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:43,114 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:43,114 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-07-09 16:53:43,114 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:43,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:43,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1186554581, now seen corresponding path program 13 times [2021-07-09 16:53:43,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:43,115 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859926355] [2021-07-09 16:53:43,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:43,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:43,475 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:43,475 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859926355] [2021-07-09 16:53:43,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859926355] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:43,475 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:43,475 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:53:43,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982068435] [2021-07-09 16:53:43,476 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:53:43,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:43,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:53:43,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:53:43,476 INFO L87 Difference]: Start difference. First operand 9091 states and 24862 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:44,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:44,527 INFO L93 Difference]: Finished difference Result 11277 states and 29582 transitions. [2021-07-09 16:53:44,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:53:44,528 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:44,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:44,547 INFO L225 Difference]: With dead ends: 11277 [2021-07-09 16:53:44,547 INFO L226 Difference]: Without dead ends: 11277 [2021-07-09 16:53:44,548 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 797.9ms TimeCoverageRelationStatistics Valid=268, Invalid=788, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:53:44,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11277 states. [2021-07-09 16:53:44,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11277 to 9067. [2021-07-09 16:53:44,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9067 states, 9065 states have (on average 2.7360176503033644) internal successors, (24802), 9066 states have internal predecessors, (24802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:44,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9067 states to 9067 states and 24802 transitions. [2021-07-09 16:53:44,733 INFO L78 Accepts]: Start accepts. Automaton has 9067 states and 24802 transitions. Word has length 113 [2021-07-09 16:53:44,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:44,733 INFO L482 AbstractCegarLoop]: Abstraction has 9067 states and 24802 transitions. [2021-07-09 16:53:44,734 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:44,734 INFO L276 IsEmpty]: Start isEmpty. Operand 9067 states and 24802 transitions. [2021-07-09 16:53:44,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:44,745 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:44,745 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:44,745 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-07-09 16:53:44,745 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:44,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:44,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1976423059, now seen corresponding path program 14 times [2021-07-09 16:53:44,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:44,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736068347] [2021-07-09 16:53:44,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:45,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:45,192 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:45,192 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736068347] [2021-07-09 16:53:45,192 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736068347] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:45,192 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:45,193 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:53:45,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880444242] [2021-07-09 16:53:45,193 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:53:45,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:45,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:53:45,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:53:45,194 INFO L87 Difference]: Start difference. First operand 9067 states and 24802 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:46,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:46,196 INFO L93 Difference]: Finished difference Result 11416 states and 29843 transitions. [2021-07-09 16:53:46,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:53:46,196 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:46,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:46,215 INFO L225 Difference]: With dead ends: 11416 [2021-07-09 16:53:46,215 INFO L226 Difference]: Without dead ends: 11416 [2021-07-09 16:53:46,215 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 789.3ms TimeCoverageRelationStatistics Valid=268, Invalid=788, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:53:46,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11416 states. [2021-07-09 16:53:46,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11416 to 9059. [2021-07-09 16:53:46,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9059 states, 9057 states have (on average 2.736226123440433) internal successors, (24782), 9058 states have internal predecessors, (24782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:46,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9059 states to 9059 states and 24782 transitions. [2021-07-09 16:53:46,390 INFO L78 Accepts]: Start accepts. Automaton has 9059 states and 24782 transitions. Word has length 113 [2021-07-09 16:53:46,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:46,391 INFO L482 AbstractCegarLoop]: Abstraction has 9059 states and 24782 transitions. [2021-07-09 16:53:46,391 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:46,391 INFO L276 IsEmpty]: Start isEmpty. Operand 9059 states and 24782 transitions. [2021-07-09 16:53:46,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:46,402 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:46,402 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:46,402 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-07-09 16:53:46,403 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:46,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:46,403 INFO L82 PathProgramCache]: Analyzing trace with hash 2084351913, now seen corresponding path program 15 times [2021-07-09 16:53:46,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:46,403 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356769990] [2021-07-09 16:53:46,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:46,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:46,782 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:46,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356769990] [2021-07-09 16:53:46,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356769990] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:46,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:46,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:53:46,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925333331] [2021-07-09 16:53:46,783 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:53:46,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:46,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:53:46,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:53:46,783 INFO L87 Difference]: Start difference. First operand 9059 states and 24782 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:48,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:48,026 INFO L93 Difference]: Finished difference Result 10971 states and 28895 transitions. [2021-07-09 16:53:48,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:53:48,027 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:48,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:48,044 INFO L225 Difference]: With dead ends: 10971 [2021-07-09 16:53:48,044 INFO L226 Difference]: Without dead ends: 10971 [2021-07-09 16:53:48,044 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 906.0ms TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:53:48,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10971 states. [2021-07-09 16:53:48,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10971 to 8942. [2021-07-09 16:53:48,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8942 states, 8940 states have (on average 2.7448545861297537) internal successors, (24539), 8941 states have internal predecessors, (24539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:48,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8942 states to 8942 states and 24539 transitions. [2021-07-09 16:53:48,218 INFO L78 Accepts]: Start accepts. Automaton has 8942 states and 24539 transitions. Word has length 113 [2021-07-09 16:53:48,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:48,219 INFO L482 AbstractCegarLoop]: Abstraction has 8942 states and 24539 transitions. [2021-07-09 16:53:48,219 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:48,219 INFO L276 IsEmpty]: Start isEmpty. Operand 8942 states and 24539 transitions. [2021-07-09 16:53:48,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:48,231 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:48,231 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:48,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-07-09 16:53:48,231 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:48,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:48,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1768443537, now seen corresponding path program 6 times [2021-07-09 16:53:48,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:48,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315113056] [2021-07-09 16:53:48,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:48,799 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:48,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315113056] [2021-07-09 16:53:48,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315113056] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:48,800 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:48,800 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:53:48,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772532156] [2021-07-09 16:53:48,800 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:53:48,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:48,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:53:48,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:53:48,801 INFO L87 Difference]: Start difference. First operand 8942 states and 24539 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:50,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:50,519 INFO L93 Difference]: Finished difference Result 13158 states and 35673 transitions. [2021-07-09 16:53:50,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-09 16:53:50,519 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:50,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:50,544 INFO L225 Difference]: With dead ends: 13158 [2021-07-09 16:53:50,545 INFO L226 Difference]: Without dead ends: 13083 [2021-07-09 16:53:50,545 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1213.0ms TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-07-09 16:53:50,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13083 states. [2021-07-09 16:53:50,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13083 to 10142. [2021-07-09 16:53:50,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10142 states, 10140 states have (on average 2.7433925049309664) internal successors, (27818), 10141 states have internal predecessors, (27818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:50,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10142 states to 10142 states and 27818 transitions. [2021-07-09 16:53:50,749 INFO L78 Accepts]: Start accepts. Automaton has 10142 states and 27818 transitions. Word has length 113 [2021-07-09 16:53:50,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:50,749 INFO L482 AbstractCegarLoop]: Abstraction has 10142 states and 27818 transitions. [2021-07-09 16:53:50,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:50,750 INFO L276 IsEmpty]: Start isEmpty. Operand 10142 states and 27818 transitions. [2021-07-09 16:53:50,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:50,762 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:50,762 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:50,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-09 16:53:50,762 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:50,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:50,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1481122453, now seen corresponding path program 16 times [2021-07-09 16:53:50,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:50,763 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779443345] [2021-07-09 16:53:50,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:51,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:51,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:51,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779443345] [2021-07-09 16:53:51,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779443345] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:51,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:51,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:53:51,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990440889] [2021-07-09 16:53:51,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:53:51,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:51,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:53:51,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:53:51,142 INFO L87 Difference]: Start difference. First operand 10142 states and 27818 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:52,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:52,670 INFO L93 Difference]: Finished difference Result 12852 states and 34294 transitions. [2021-07-09 16:53:52,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:53:52,671 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:52,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:52,695 INFO L225 Difference]: With dead ends: 12852 [2021-07-09 16:53:52,695 INFO L226 Difference]: Without dead ends: 12852 [2021-07-09 16:53:52,696 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1194.7ms TimeCoverageRelationStatistics Valid=280, Invalid=712, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:52,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12852 states. [2021-07-09 16:53:52,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12852 to 9122. [2021-07-09 16:53:52,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9122 states, 9120 states have (on average 2.737061403508772) internal successors, (24962), 9121 states have internal predecessors, (24962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:52,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9122 states to 9122 states and 24962 transitions. [2021-07-09 16:53:52,877 INFO L78 Accepts]: Start accepts. Automaton has 9122 states and 24962 transitions. Word has length 113 [2021-07-09 16:53:52,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:52,878 INFO L482 AbstractCegarLoop]: Abstraction has 9122 states and 24962 transitions. [2021-07-09 16:53:52,878 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:52,878 INFO L276 IsEmpty]: Start isEmpty. Operand 9122 states and 24962 transitions. [2021-07-09 16:53:52,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:52,890 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:52,890 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:52,891 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-09 16:53:52,891 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:52,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:52,891 INFO L82 PathProgramCache]: Analyzing trace with hash -314692215, now seen corresponding path program 17 times [2021-07-09 16:53:52,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:52,891 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434839016] [2021-07-09 16:53:52,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:53,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:53,270 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:53,270 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434839016] [2021-07-09 16:53:53,270 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434839016] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:53,270 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:53,270 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:53:53,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664174762] [2021-07-09 16:53:53,271 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:53:53,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:53,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:53:53,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:53:53,272 INFO L87 Difference]: Start difference. First operand 9122 states and 24962 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:54,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:54,730 INFO L93 Difference]: Finished difference Result 12360 states and 33003 transitions. [2021-07-09 16:53:54,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:53:54,731 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:54,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:54,750 INFO L225 Difference]: With dead ends: 12360 [2021-07-09 16:53:54,751 INFO L226 Difference]: Without dead ends: 12360 [2021-07-09 16:53:54,751 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1141.4ms TimeCoverageRelationStatistics Valid=289, Invalid=767, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:53:54,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12360 states. [2021-07-09 16:53:54,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12360 to 8882. [2021-07-09 16:53:54,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8882 states, 8880 states have (on average 2.7431306306306307) internal successors, (24359), 8881 states have internal predecessors, (24359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:54,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8882 states to 8882 states and 24359 transitions. [2021-07-09 16:53:54,915 INFO L78 Accepts]: Start accepts. Automaton has 8882 states and 24359 transitions. Word has length 113 [2021-07-09 16:53:54,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:54,915 INFO L482 AbstractCegarLoop]: Abstraction has 8882 states and 24359 transitions. [2021-07-09 16:53:54,915 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:54,915 INFO L276 IsEmpty]: Start isEmpty. Operand 8882 states and 24359 transitions. [2021-07-09 16:53:54,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:54,927 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:54,927 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:54,927 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-07-09 16:53:54,927 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:54,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:54,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1329901867, now seen corresponding path program 7 times [2021-07-09 16:53:54,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:54,928 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186115247] [2021-07-09 16:53:54,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:55,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:55,497 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:55,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186115247] [2021-07-09 16:53:55,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186115247] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:55,497 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:55,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:53:55,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902903190] [2021-07-09 16:53:55,498 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:53:55,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:55,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:53:55,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:53:55,499 INFO L87 Difference]: Start difference. First operand 8882 states and 24359 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:56,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:56,825 INFO L93 Difference]: Finished difference Result 13355 states and 36299 transitions. [2021-07-09 16:53:56,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-09 16:53:56,825 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:56,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:56,850 INFO L225 Difference]: With dead ends: 13355 [2021-07-09 16:53:56,850 INFO L226 Difference]: Without dead ends: 13280 [2021-07-09 16:53:56,851 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1017.9ms TimeCoverageRelationStatistics Valid=391, Invalid=1249, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 16:53:56,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13280 states. [2021-07-09 16:53:57,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13280 to 10192. [2021-07-09 16:53:57,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10192 states, 10190 states have (on average 2.74396467124632) internal successors, (27961), 10191 states have internal predecessors, (27961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:57,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10192 states to 10192 states and 27961 transitions. [2021-07-09 16:53:57,089 INFO L78 Accepts]: Start accepts. Automaton has 10192 states and 27961 transitions. Word has length 113 [2021-07-09 16:53:57,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:57,089 INFO L482 AbstractCegarLoop]: Abstraction has 10192 states and 27961 transitions. [2021-07-09 16:53:57,089 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:57,089 INFO L276 IsEmpty]: Start isEmpty. Operand 10192 states and 27961 transitions. [2021-07-09 16:53:57,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:57,102 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:57,102 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:57,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-07-09 16:53:57,103 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:57,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:57,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1617222951, now seen corresponding path program 18 times [2021-07-09 16:53:57,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:57,103 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544271787] [2021-07-09 16:53:57,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:57,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:57,442 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:57,442 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544271787] [2021-07-09 16:53:57,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544271787] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:57,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:57,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:53:57,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107067035] [2021-07-09 16:53:57,443 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:53:57,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:57,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:53:57,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:53:57,444 INFO L87 Difference]: Start difference. First operand 10192 states and 27961 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:59,219 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-07-09 16:53:59,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:59,559 INFO L93 Difference]: Finished difference Result 15493 states and 41020 transitions. [2021-07-09 16:53:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-09 16:53:59,560 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:53:59,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:59,584 INFO L225 Difference]: With dead ends: 15493 [2021-07-09 16:53:59,584 INFO L226 Difference]: Without dead ends: 15493 [2021-07-09 16:53:59,585 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1634.5ms TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2021-07-09 16:53:59,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15493 states. [2021-07-09 16:53:59,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15493 to 9002. [2021-07-09 16:53:59,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9000 states have (on average 2.745222222222222) internal successors, (24707), 9001 states have internal predecessors, (24707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:59,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24707 transitions. [2021-07-09 16:53:59,825 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24707 transitions. Word has length 113 [2021-07-09 16:53:59,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:59,826 INFO L482 AbstractCegarLoop]: Abstraction has 9002 states and 24707 transitions. [2021-07-09 16:53:59,826 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:59,826 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24707 transitions. [2021-07-09 16:53:59,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:53:59,838 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:59,838 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:59,838 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-07-09 16:53:59,838 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:59,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:59,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1478866277, now seen corresponding path program 8 times [2021-07-09 16:53:59,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:59,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116510904] [2021-07-09 16:53:59,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:00,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:00,352 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:00,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116510904] [2021-07-09 16:54:00,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116510904] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:00,353 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:00,353 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:54:00,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119600050] [2021-07-09 16:54:00,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:54:00,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:00,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:54:00,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:54:00,354 INFO L87 Difference]: Start difference. First operand 9002 states and 24707 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:01,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:01,625 INFO L93 Difference]: Finished difference Result 11632 states and 31580 transitions. [2021-07-09 16:54:01,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-09 16:54:01,625 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:01,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:01,645 INFO L225 Difference]: With dead ends: 11632 [2021-07-09 16:54:01,646 INFO L226 Difference]: Without dead ends: 11522 [2021-07-09 16:54:01,646 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 953.5ms TimeCoverageRelationStatistics Valid=384, Invalid=1256, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 16:54:01,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11522 states. [2021-07-09 16:54:01,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11522 to 9108. [2021-07-09 16:54:01,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9108 states, 9106 states have (on average 2.7358884252141444) internal successors, (24913), 9107 states have internal predecessors, (24913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:01,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9108 states to 9108 states and 24913 transitions. [2021-07-09 16:54:01,906 INFO L78 Accepts]: Start accepts. Automaton has 9108 states and 24913 transitions. Word has length 113 [2021-07-09 16:54:01,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:01,906 INFO L482 AbstractCegarLoop]: Abstraction has 9108 states and 24913 transitions. [2021-07-09 16:54:01,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:01,906 INFO L276 IsEmpty]: Start isEmpty. Operand 9108 states and 24913 transitions. [2021-07-09 16:54:01,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:01,920 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:01,920 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:01,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-07-09 16:54:01,920 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:01,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:01,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1191545193, now seen corresponding path program 19 times [2021-07-09 16:54:01,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:01,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719518779] [2021-07-09 16:54:01,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:01,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:02,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:02,286 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:02,286 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719518779] [2021-07-09 16:54:02,286 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719518779] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:02,286 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:02,286 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:54:02,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260467637] [2021-07-09 16:54:02,287 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:54:02,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:02,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:54:02,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:54:02,287 INFO L87 Difference]: Start difference. First operand 9108 states and 24913 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:03,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:03,731 INFO L93 Difference]: Finished difference Result 13486 states and 35754 transitions. [2021-07-09 16:54:03,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:54:03,731 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:03,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:03,755 INFO L225 Difference]: With dead ends: 13486 [2021-07-09 16:54:03,755 INFO L226 Difference]: Without dead ends: 13486 [2021-07-09 16:54:03,755 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1155.7ms TimeCoverageRelationStatistics Valid=313, Invalid=809, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:54:03,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13486 states. [2021-07-09 16:54:03,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13486 to 8882. [2021-07-09 16:54:03,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8882 states, 8880 states have (on average 2.7431306306306307) internal successors, (24359), 8881 states have internal predecessors, (24359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:03,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8882 states to 8882 states and 24359 transitions. [2021-07-09 16:54:03,961 INFO L78 Accepts]: Start accepts. Automaton has 8882 states and 24359 transitions. Word has length 113 [2021-07-09 16:54:03,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:03,962 INFO L482 AbstractCegarLoop]: Abstraction has 8882 states and 24359 transitions. [2021-07-09 16:54:03,962 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:03,962 INFO L276 IsEmpty]: Start isEmpty. Operand 8882 states and 24359 transitions. [2021-07-09 16:54:03,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:03,973 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:03,973 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:03,973 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-07-09 16:54:03,974 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:03,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:03,974 INFO L82 PathProgramCache]: Analyzing trace with hash 669985557, now seen corresponding path program 9 times [2021-07-09 16:54:03,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:03,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746345411] [2021-07-09 16:54:03,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:04,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:04,556 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:04,556 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746345411] [2021-07-09 16:54:04,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746345411] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:04,556 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:04,556 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:54:04,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491804155] [2021-07-09 16:54:04,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:54:04,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:04,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:54:04,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:54:04,558 INFO L87 Difference]: Start difference. First operand 8882 states and 24359 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:05,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:05,938 INFO L93 Difference]: Finished difference Result 11172 states and 30325 transitions. [2021-07-09 16:54:05,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-09 16:54:05,938 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:05,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:05,956 INFO L225 Difference]: With dead ends: 11172 [2021-07-09 16:54:05,957 INFO L226 Difference]: Without dead ends: 11097 [2021-07-09 16:54:05,957 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 1055.8ms TimeCoverageRelationStatistics Valid=373, Invalid=1267, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 16:54:05,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11097 states. [2021-07-09 16:54:06,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11097 to 9064. [2021-07-09 16:54:06,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9064 states, 9062 states have (on average 2.7352681527256677) internal successors, (24787), 9063 states have internal predecessors, (24787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:06,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9064 states to 9064 states and 24787 transitions. [2021-07-09 16:54:06,135 INFO L78 Accepts]: Start accepts. Automaton has 9064 states and 24787 transitions. Word has length 113 [2021-07-09 16:54:06,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:06,135 INFO L482 AbstractCegarLoop]: Abstraction has 9064 states and 24787 transitions. [2021-07-09 16:54:06,135 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:06,135 INFO L276 IsEmpty]: Start isEmpty. Operand 9064 states and 24787 transitions. [2021-07-09 16:54:06,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:06,147 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:06,147 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:06,147 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-07-09 16:54:06,147 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:06,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:06,147 INFO L82 PathProgramCache]: Analyzing trace with hash 382664473, now seen corresponding path program 20 times [2021-07-09 16:54:06,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:06,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742210862] [2021-07-09 16:54:06,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:06,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:06,511 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:06,512 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742210862] [2021-07-09 16:54:06,512 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742210862] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:06,512 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:06,512 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:54:06,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662740385] [2021-07-09 16:54:06,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:54:06,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:06,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:54:06,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:54:06,513 INFO L87 Difference]: Start difference. First operand 9064 states and 24787 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:07,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:07,998 INFO L93 Difference]: Finished difference Result 13192 states and 34915 transitions. [2021-07-09 16:54:07,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:54:07,998 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:07,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:08,021 INFO L225 Difference]: With dead ends: 13192 [2021-07-09 16:54:08,021 INFO L226 Difference]: Without dead ends: 13192 [2021-07-09 16:54:08,021 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1031.0ms TimeCoverageRelationStatistics Valid=278, Invalid=778, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:54:08,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13192 states. [2021-07-09 16:54:08,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13192 to 8884. [2021-07-09 16:54:08,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8884 states, 8882 states have (on average 2.743075883809953) internal successors, (24364), 8883 states have internal predecessors, (24364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:08,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8884 states to 8884 states and 24364 transitions. [2021-07-09 16:54:08,206 INFO L78 Accepts]: Start accepts. Automaton has 8884 states and 24364 transitions. Word has length 113 [2021-07-09 16:54:08,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:08,206 INFO L482 AbstractCegarLoop]: Abstraction has 8884 states and 24364 transitions. [2021-07-09 16:54:08,206 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:08,206 INFO L276 IsEmpty]: Start isEmpty. Operand 8884 states and 24364 transitions. [2021-07-09 16:54:08,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:08,218 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:08,218 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:08,218 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-07-09 16:54:08,218 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:08,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:08,219 INFO L82 PathProgramCache]: Analyzing trace with hash 435793233, now seen corresponding path program 10 times [2021-07-09 16:54:08,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:08,219 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846329199] [2021-07-09 16:54:08,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:08,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:08,770 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:08,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846329199] [2021-07-09 16:54:08,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846329199] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:08,770 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:08,770 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:54:08,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666338370] [2021-07-09 16:54:08,771 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:54:08,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:08,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:54:08,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:54:08,772 INFO L87 Difference]: Start difference. First operand 8884 states and 24364 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:10,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:10,239 INFO L93 Difference]: Finished difference Result 11457 states and 30997 transitions. [2021-07-09 16:54:10,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-09 16:54:10,239 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:10,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:10,258 INFO L225 Difference]: With dead ends: 11457 [2021-07-09 16:54:10,258 INFO L226 Difference]: Without dead ends: 11377 [2021-07-09 16:54:10,259 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 1023.5ms TimeCoverageRelationStatistics Valid=414, Invalid=1392, Unknown=0, NotChecked=0, Total=1806 [2021-07-09 16:54:10,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11377 states. [2021-07-09 16:54:10,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11377 to 9074. [2021-07-09 16:54:10,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9074 states, 9072 states have (on average 2.73478835978836) internal successors, (24810), 9073 states have internal predecessors, (24810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:10,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9074 states to 9074 states and 24810 transitions. [2021-07-09 16:54:10,477 INFO L78 Accepts]: Start accepts. Automaton has 9074 states and 24810 transitions. Word has length 113 [2021-07-09 16:54:10,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:10,478 INFO L482 AbstractCegarLoop]: Abstraction has 9074 states and 24810 transitions. [2021-07-09 16:54:10,478 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:10,478 INFO L276 IsEmpty]: Start isEmpty. Operand 9074 states and 24810 transitions. [2021-07-09 16:54:10,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:10,490 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:10,490 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:10,490 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-07-09 16:54:10,490 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:10,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:10,491 INFO L82 PathProgramCache]: Analyzing trace with hash 148472149, now seen corresponding path program 21 times [2021-07-09 16:54:10,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:10,491 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915355232] [2021-07-09 16:54:10,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:10,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:10,869 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:10,869 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915355232] [2021-07-09 16:54:10,869 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915355232] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:10,869 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:10,869 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:54:10,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489001899] [2021-07-09 16:54:10,870 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:54:10,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:10,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:54:10,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:54:10,870 INFO L87 Difference]: Start difference. First operand 9074 states and 24810 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:12,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:12,369 INFO L93 Difference]: Finished difference Result 12912 states and 34293 transitions. [2021-07-09 16:54:12,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:54:12,369 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:12,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:12,394 INFO L225 Difference]: With dead ends: 12912 [2021-07-09 16:54:12,394 INFO L226 Difference]: Without dead ends: 12912 [2021-07-09 16:54:12,395 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1166.0ms TimeCoverageRelationStatistics Valid=302, Invalid=820, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:54:12,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12912 states. [2021-07-09 16:54:12,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12912 to 8883. [2021-07-09 16:54:12,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.7431595541042677) internal successors, (24362), 8882 states have internal predecessors, (24362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:12,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 24362 transitions. [2021-07-09 16:54:12,583 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 24362 transitions. Word has length 113 [2021-07-09 16:54:12,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:12,583 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 24362 transitions. [2021-07-09 16:54:12,583 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:12,583 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 24362 transitions. [2021-07-09 16:54:12,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:12,595 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:12,595 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:12,595 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-07-09 16:54:12,595 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:12,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:12,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1463467373, now seen corresponding path program 11 times [2021-07-09 16:54:12,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:12,596 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953861430] [2021-07-09 16:54:12,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:13,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:13,183 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:13,183 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953861430] [2021-07-09 16:54:13,183 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953861430] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:13,183 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:13,183 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:54:13,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340159056] [2021-07-09 16:54:13,184 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:54:13,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:13,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:54:13,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:54:13,185 INFO L87 Difference]: Start difference. First operand 8883 states and 24362 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:14,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:14,686 INFO L93 Difference]: Finished difference Result 13045 states and 35227 transitions. [2021-07-09 16:54:14,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-09 16:54:14,686 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:14,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:14,709 INFO L225 Difference]: With dead ends: 13045 [2021-07-09 16:54:14,709 INFO L226 Difference]: Without dead ends: 12970 [2021-07-09 16:54:14,710 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 1059.0ms TimeCoverageRelationStatistics Valid=393, Invalid=1247, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 16:54:14,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12970 states. [2021-07-09 16:54:14,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12970 to 9053. [2021-07-09 16:54:14,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9053 states, 9051 states have (on average 2.7356093249364712) internal successors, (24760), 9052 states have internal predecessors, (24760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:14,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9053 states to 9053 states and 24760 transitions. [2021-07-09 16:54:14,893 INFO L78 Accepts]: Start accepts. Automaton has 9053 states and 24760 transitions. Word has length 113 [2021-07-09 16:54:14,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:14,894 INFO L482 AbstractCegarLoop]: Abstraction has 9053 states and 24760 transitions. [2021-07-09 16:54:14,894 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:14,894 INFO L276 IsEmpty]: Start isEmpty. Operand 9053 states and 24760 transitions. [2021-07-09 16:54:14,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:14,907 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:14,907 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:14,907 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-07-09 16:54:14,907 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:14,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:14,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1176146289, now seen corresponding path program 22 times [2021-07-09 16:54:14,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:14,907 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364997828] [2021-07-09 16:54:14,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:15,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:15,276 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:15,277 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364997828] [2021-07-09 16:54:15,277 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364997828] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:15,277 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:15,277 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:54:15,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329102557] [2021-07-09 16:54:15,277 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:54:15,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:15,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:54:15,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:54:15,278 INFO L87 Difference]: Start difference. First operand 9053 states and 24760 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:17,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:17,715 INFO L93 Difference]: Finished difference Result 12151 states and 32122 transitions. [2021-07-09 16:54:17,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 16:54:17,716 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:17,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:17,742 INFO L225 Difference]: With dead ends: 12151 [2021-07-09 16:54:17,743 INFO L226 Difference]: Without dead ends: 12151 [2021-07-09 16:54:17,743 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1938.7ms TimeCoverageRelationStatistics Valid=462, Invalid=1178, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 16:54:17,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12151 states. [2021-07-09 16:54:17,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12151 to 7920. [2021-07-09 16:54:17,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7920 states, 7918 states have (on average 2.7323819146249053) internal successors, (21635), 7919 states have internal predecessors, (21635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:17,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7920 states to 7920 states and 21635 transitions. [2021-07-09 16:54:17,986 INFO L78 Accepts]: Start accepts. Automaton has 7920 states and 21635 transitions. Word has length 113 [2021-07-09 16:54:17,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:17,986 INFO L482 AbstractCegarLoop]: Abstraction has 7920 states and 21635 transitions. [2021-07-09 16:54:17,986 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:17,987 INFO L276 IsEmpty]: Start isEmpty. Operand 7920 states and 21635 transitions. [2021-07-09 16:54:18,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:18,000 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:18,000 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:18,000 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-07-09 16:54:18,002 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:18,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:18,002 INFO L82 PathProgramCache]: Analyzing trace with hash -22731779, now seen corresponding path program 12 times [2021-07-09 16:54:18,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:18,002 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139247474] [2021-07-09 16:54:18,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:18,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:18,775 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:18,775 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139247474] [2021-07-09 16:54:18,775 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139247474] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:18,775 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:18,775 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:54:18,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997372397] [2021-07-09 16:54:18,775 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:54:18,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:18,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:54:18,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:54:18,776 INFO L87 Difference]: Start difference. First operand 7920 states and 21635 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:20,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:20,160 INFO L93 Difference]: Finished difference Result 11862 states and 31978 transitions. [2021-07-09 16:54:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-09 16:54:20,160 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:20,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:20,180 INFO L225 Difference]: With dead ends: 11862 [2021-07-09 16:54:20,180 INFO L226 Difference]: Without dead ends: 11752 [2021-07-09 16:54:20,181 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 1009.9ms TimeCoverageRelationStatistics Valid=386, Invalid=1254, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 16:54:20,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11752 states. [2021-07-09 16:54:20,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11752 to 8026. [2021-07-09 16:54:20,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8026 states, 8024 states have (on average 2.7219591226321036) internal successors, (21841), 8025 states have internal predecessors, (21841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:20,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8026 states to 8026 states and 21841 transitions. [2021-07-09 16:54:20,341 INFO L78 Accepts]: Start accepts. Automaton has 8026 states and 21841 transitions. Word has length 113 [2021-07-09 16:54:20,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:20,342 INFO L482 AbstractCegarLoop]: Abstraction has 8026 states and 21841 transitions. [2021-07-09 16:54:20,342 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:20,342 INFO L276 IsEmpty]: Start isEmpty. Operand 8026 states and 21841 transitions. [2021-07-09 16:54:20,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:20,352 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:20,353 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:20,353 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-07-09 16:54:20,353 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:20,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:20,353 INFO L82 PathProgramCache]: Analyzing trace with hash -310052863, now seen corresponding path program 23 times [2021-07-09 16:54:20,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:20,353 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620595416] [2021-07-09 16:54:20,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:20,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:20,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:20,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620595416] [2021-07-09 16:54:20,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620595416] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:20,760 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:20,760 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:54:20,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729495683] [2021-07-09 16:54:20,760 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:54:20,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:20,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:54:20,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:54:20,761 INFO L87 Difference]: Start difference. First operand 8026 states and 21841 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:22,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:22,949 INFO L93 Difference]: Finished difference Result 12633 states and 33163 transitions. [2021-07-09 16:54:22,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 16:54:22,950 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:22,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:22,972 INFO L225 Difference]: With dead ends: 12633 [2021-07-09 16:54:22,972 INFO L226 Difference]: Without dead ends: 12633 [2021-07-09 16:54:22,972 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 1647.9ms TimeCoverageRelationStatistics Valid=451, Invalid=1189, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 16:54:22,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12633 states. [2021-07-09 16:54:23,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12633 to 7800. [2021-07-09 16:54:23,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7800 states, 7798 states have (on average 2.729802513464991) internal successors, (21287), 7799 states have internal predecessors, (21287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:23,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7800 states to 7800 states and 21287 transitions. [2021-07-09 16:54:23,141 INFO L78 Accepts]: Start accepts. Automaton has 7800 states and 21287 transitions. Word has length 113 [2021-07-09 16:54:23,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:23,142 INFO L482 AbstractCegarLoop]: Abstraction has 7800 states and 21287 transitions. [2021-07-09 16:54:23,142 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:23,142 INFO L276 IsEmpty]: Start isEmpty. Operand 7800 states and 21287 transitions. [2021-07-09 16:54:23,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:23,152 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:23,153 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:23,153 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-07-09 16:54:23,153 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:23,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:23,153 INFO L82 PathProgramCache]: Analyzing trace with hash 295817105, now seen corresponding path program 13 times [2021-07-09 16:54:23,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:23,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12909984] [2021-07-09 16:54:23,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:23,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:23,702 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:23,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12909984] [2021-07-09 16:54:23,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12909984] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:23,702 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:23,702 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:54:23,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77010768] [2021-07-09 16:54:23,702 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:54:23,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:23,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:54:23,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:54:23,703 INFO L87 Difference]: Start difference. First operand 7800 states and 21287 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:25,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:25,114 INFO L93 Difference]: Finished difference Result 11810 states and 31506 transitions. [2021-07-09 16:54:25,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-09 16:54:25,115 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:25,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:25,134 INFO L225 Difference]: With dead ends: 11810 [2021-07-09 16:54:25,134 INFO L226 Difference]: Without dead ends: 11632 [2021-07-09 16:54:25,135 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 1016.9ms TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2021-07-09 16:54:25,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11632 states. [2021-07-09 16:54:25,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11632 to 7811. [2021-07-09 16:54:25,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7811 states, 7809 states have (on average 2.7150723524138813) internal successors, (21202), 7810 states have internal predecessors, (21202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:25,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7811 states to 7811 states and 21202 transitions. [2021-07-09 16:54:25,348 INFO L78 Accepts]: Start accepts. Automaton has 7811 states and 21202 transitions. Word has length 113 [2021-07-09 16:54:25,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:25,348 INFO L482 AbstractCegarLoop]: Abstraction has 7811 states and 21202 transitions. [2021-07-09 16:54:25,348 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:25,348 INFO L276 IsEmpty]: Start isEmpty. Operand 7811 states and 21202 transitions. [2021-07-09 16:54:25,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:25,361 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:25,361 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:25,361 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-07-09 16:54:25,361 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:25,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:25,362 INFO L82 PathProgramCache]: Analyzing trace with hash 8496021, now seen corresponding path program 24 times [2021-07-09 16:54:25,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:25,362 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782836042] [2021-07-09 16:54:25,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:25,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:25,683 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:25,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782836042] [2021-07-09 16:54:25,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782836042] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:25,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:25,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:54:25,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923571302] [2021-07-09 16:54:25,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:54:25,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:25,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:54:25,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:54:25,685 INFO L87 Difference]: Start difference. First operand 7811 states and 21202 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:27,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:27,118 INFO L93 Difference]: Finished difference Result 9818 states and 25923 transitions. [2021-07-09 16:54:27,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-09 16:54:27,118 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:27,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:27,135 INFO L225 Difference]: With dead ends: 9818 [2021-07-09 16:54:27,135 INFO L226 Difference]: Without dead ends: 9818 [2021-07-09 16:54:27,136 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1109.0ms TimeCoverageRelationStatistics Valid=325, Invalid=865, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:54:27,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9818 states. [2021-07-09 16:54:27,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9818 to 7579. [2021-07-09 16:54:27,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7579 states, 7577 states have (on average 2.726276890589943) internal successors, (20657), 7578 states have internal predecessors, (20657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:27,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7579 states to 7579 states and 20657 transitions. [2021-07-09 16:54:27,299 INFO L78 Accepts]: Start accepts. Automaton has 7579 states and 20657 transitions. Word has length 113 [2021-07-09 16:54:27,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:27,299 INFO L482 AbstractCegarLoop]: Abstraction has 7579 states and 20657 transitions. [2021-07-09 16:54:27,299 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:27,299 INFO L276 IsEmpty]: Start isEmpty. Operand 7579 states and 20657 transitions. [2021-07-09 16:54:27,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:27,309 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:27,310 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:27,310 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-07-09 16:54:27,310 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:27,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:27,310 INFO L82 PathProgramCache]: Analyzing trace with hash -174789089, now seen corresponding path program 14 times [2021-07-09 16:54:27,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:27,310 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562770616] [2021-07-09 16:54:27,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:27,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:27,879 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:27,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562770616] [2021-07-09 16:54:27,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562770616] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:27,879 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:27,879 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:54:27,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885453990] [2021-07-09 16:54:27,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:54:27,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:27,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:54:27,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:54:27,880 INFO L87 Difference]: Start difference. First operand 7579 states and 20657 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:29,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:29,233 INFO L93 Difference]: Finished difference Result 9264 states and 24805 transitions. [2021-07-09 16:54:29,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-09 16:54:29,234 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:29,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:29,249 INFO L225 Difference]: With dead ends: 9264 [2021-07-09 16:54:29,249 INFO L226 Difference]: Without dead ends: 9189 [2021-07-09 16:54:29,250 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 1047.8ms TimeCoverageRelationStatistics Valid=370, Invalid=1270, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 16:54:29,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9189 states. [2021-07-09 16:54:29,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9189 to 7767. [2021-07-09 16:54:29,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7767 states, 7765 states have (on average 2.7173213135866066) internal successors, (21100), 7766 states have internal predecessors, (21100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:29,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7767 states to 7767 states and 21100 transitions. [2021-07-09 16:54:29,403 INFO L78 Accepts]: Start accepts. Automaton has 7767 states and 21100 transitions. Word has length 113 [2021-07-09 16:54:29,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:29,403 INFO L482 AbstractCegarLoop]: Abstraction has 7767 states and 21100 transitions. [2021-07-09 16:54:29,404 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:29,404 INFO L276 IsEmpty]: Start isEmpty. Operand 7767 states and 21100 transitions. [2021-07-09 16:54:29,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:29,415 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:29,415 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:29,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-07-09 16:54:29,415 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:29,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:29,415 INFO L82 PathProgramCache]: Analyzing trace with hash -462110173, now seen corresponding path program 25 times [2021-07-09 16:54:29,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:29,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50303731] [2021-07-09 16:54:29,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:29,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:29,793 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:29,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50303731] [2021-07-09 16:54:29,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50303731] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:29,794 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:29,794 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:54:29,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859721093] [2021-07-09 16:54:29,794 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:54:29,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:29,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:54:29,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:54:29,795 INFO L87 Difference]: Start difference. First operand 7767 states and 21100 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:31,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:31,107 INFO L93 Difference]: Finished difference Result 9419 states and 24711 transitions. [2021-07-09 16:54:31,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:54:31,107 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:31,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:31,122 INFO L225 Difference]: With dead ends: 9419 [2021-07-09 16:54:31,122 INFO L226 Difference]: Without dead ends: 9419 [2021-07-09 16:54:31,122 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1023.8ms TimeCoverageRelationStatistics Valid=267, Invalid=789, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:54:31,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9419 states. [2021-07-09 16:54:31,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9419 to 7587. [2021-07-09 16:54:31,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7587 states, 7585 states have (on average 2.7260382333553066) internal successors, (20677), 7586 states have internal predecessors, (20677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:31,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7587 states to 7587 states and 20677 transitions. [2021-07-09 16:54:31,263 INFO L78 Accepts]: Start accepts. Automaton has 7587 states and 20677 transitions. Word has length 113 [2021-07-09 16:54:31,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:31,263 INFO L482 AbstractCegarLoop]: Abstraction has 7587 states and 20677 transitions. [2021-07-09 16:54:31,263 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:31,263 INFO L276 IsEmpty]: Start isEmpty. Operand 7587 states and 20677 transitions. [2021-07-09 16:54:31,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:31,273 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:31,273 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:31,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-07-09 16:54:31,273 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:31,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:31,273 INFO L82 PathProgramCache]: Analyzing trace with hash -408981413, now seen corresponding path program 15 times [2021-07-09 16:54:31,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:31,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221016896] [2021-07-09 16:54:31,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:31,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:31,659 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:31,660 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221016896] [2021-07-09 16:54:31,660 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221016896] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:31,660 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:31,660 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:54:31,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334388504] [2021-07-09 16:54:31,660 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:54:31,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:31,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:54:31,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:54:31,661 INFO L87 Difference]: Start difference. First operand 7587 states and 20677 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:32,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:32,792 INFO L93 Difference]: Finished difference Result 9740 states and 26365 transitions. [2021-07-09 16:54:32,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-09 16:54:32,792 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:32,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:32,816 INFO L225 Difference]: With dead ends: 9740 [2021-07-09 16:54:32,816 INFO L226 Difference]: Without dead ends: 9740 [2021-07-09 16:54:32,816 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 840.0ms TimeCoverageRelationStatistics Valid=369, Invalid=1037, Unknown=0, NotChecked=0, Total=1406 [2021-07-09 16:54:32,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9740 states. [2021-07-09 16:54:32,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9740 to 7441. [2021-07-09 16:54:32,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7441 states, 7439 states have (on average 2.7121924989918) internal successors, (20176), 7440 states have internal predecessors, (20176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:32,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7441 states to 7441 states and 20176 transitions. [2021-07-09 16:54:32,981 INFO L78 Accepts]: Start accepts. Automaton has 7441 states and 20176 transitions. Word has length 113 [2021-07-09 16:54:32,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:32,982 INFO L482 AbstractCegarLoop]: Abstraction has 7441 states and 20176 transitions. [2021-07-09 16:54:32,982 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:32,982 INFO L276 IsEmpty]: Start isEmpty. Operand 7441 states and 20176 transitions. [2021-07-09 16:54:32,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:32,991 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:32,991 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:32,991 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-07-09 16:54:32,991 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:32,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:32,991 INFO L82 PathProgramCache]: Analyzing trace with hash -696302497, now seen corresponding path program 26 times [2021-07-09 16:54:32,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:32,991 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855323541] [2021-07-09 16:54:32,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:33,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:33,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:33,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855323541] [2021-07-09 16:54:33,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855323541] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:33,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:33,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:54:33,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187650590] [2021-07-09 16:54:33,329 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:54:33,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:33,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:54:33,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:54:33,330 INFO L87 Difference]: Start difference. First operand 7441 states and 20176 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:34,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:34,612 INFO L93 Difference]: Finished difference Result 9905 states and 25485 transitions. [2021-07-09 16:54:34,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:54:34,612 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:34,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:34,626 INFO L225 Difference]: With dead ends: 9905 [2021-07-09 16:54:34,626 INFO L226 Difference]: Without dead ends: 9905 [2021-07-09 16:54:34,627 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1004.1ms TimeCoverageRelationStatistics Valid=291, Invalid=831, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:54:34,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9905 states. [2021-07-09 16:54:34,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9905 to 7440. [2021-07-09 16:54:34,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7440 states, 7438 states have (on average 2.7122882495294434) internal successors, (20174), 7439 states have internal predecessors, (20174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:34,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7440 states to 7440 states and 20174 transitions. [2021-07-09 16:54:34,767 INFO L78 Accepts]: Start accepts. Automaton has 7440 states and 20174 transitions. Word has length 113 [2021-07-09 16:54:34,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:34,767 INFO L482 AbstractCegarLoop]: Abstraction has 7440 states and 20174 transitions. [2021-07-09 16:54:34,768 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:34,768 INFO L276 IsEmpty]: Start isEmpty. Operand 7440 states and 20174 transitions. [2021-07-09 16:54:34,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:34,777 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:34,777 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:34,777 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-07-09 16:54:34,777 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:34,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:34,777 INFO L82 PathProgramCache]: Analyzing trace with hash -95222585, now seen corresponding path program 27 times [2021-07-09 16:54:34,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:34,778 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267107524] [2021-07-09 16:54:34,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:35,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:35,153 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:35,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267107524] [2021-07-09 16:54:35,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267107524] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:35,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:35,154 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:54:35,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296233662] [2021-07-09 16:54:35,154 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:54:35,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:35,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:54:35,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:54:35,155 INFO L87 Difference]: Start difference. First operand 7440 states and 20174 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:36,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:36,543 INFO L93 Difference]: Finished difference Result 9436 states and 24508 transitions. [2021-07-09 16:54:36,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-09 16:54:36,544 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:36,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:36,557 INFO L225 Difference]: With dead ends: 9436 [2021-07-09 16:54:36,557 INFO L226 Difference]: Without dead ends: 9436 [2021-07-09 16:54:36,557 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1125.1ms TimeCoverageRelationStatistics Valid=314, Invalid=876, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:54:36,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9436 states. [2021-07-09 16:54:36,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9436 to 7506. [2021-07-09 16:54:36,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7506 states, 7504 states have (on average 2.7092217484008527) internal successors, (20330), 7505 states have internal predecessors, (20330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:36,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7506 states to 7506 states and 20330 transitions. [2021-07-09 16:54:36,688 INFO L78 Accepts]: Start accepts. Automaton has 7506 states and 20330 transitions. Word has length 113 [2021-07-09 16:54:36,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:36,688 INFO L482 AbstractCegarLoop]: Abstraction has 7506 states and 20330 transitions. [2021-07-09 16:54:36,688 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:36,688 INFO L276 IsEmpty]: Start isEmpty. Operand 7506 states and 20330 transitions. [2021-07-09 16:54:36,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:36,698 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:36,698 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:36,698 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-07-09 16:54:36,699 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:36,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:36,699 INFO L82 PathProgramCache]: Analyzing trace with hash 866108567, now seen corresponding path program 28 times [2021-07-09 16:54:36,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:36,699 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879059717] [2021-07-09 16:54:36,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:36,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:36,997 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:36,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879059717] [2021-07-09 16:54:36,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879059717] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:36,997 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:36,997 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:54:36,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157304225] [2021-07-09 16:54:36,998 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:54:36,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:36,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:54:36,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:54:36,998 INFO L87 Difference]: Start difference. First operand 7506 states and 20330 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:37,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:37,878 INFO L93 Difference]: Finished difference Result 8687 states and 22865 transitions. [2021-07-09 16:54:37,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:54:37,878 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:37,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:37,892 INFO L225 Difference]: With dead ends: 8687 [2021-07-09 16:54:37,892 INFO L226 Difference]: Without dead ends: 8687 [2021-07-09 16:54:37,893 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 669.8ms TimeCoverageRelationStatistics Valid=258, Invalid=798, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:54:37,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8687 states. [2021-07-09 16:54:38,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8687 to 7476. [2021-07-09 16:54:38,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7476 states, 7474 states have (on average 2.71006154669521) internal successors, (20255), 7475 states have internal predecessors, (20255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:38,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7476 states to 7476 states and 20255 transitions. [2021-07-09 16:54:38,034 INFO L78 Accepts]: Start accepts. Automaton has 7476 states and 20255 transitions. Word has length 113 [2021-07-09 16:54:38,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:38,034 INFO L482 AbstractCegarLoop]: Abstraction has 7476 states and 20255 transitions. [2021-07-09 16:54:38,034 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:38,034 INFO L276 IsEmpty]: Start isEmpty. Operand 7476 states and 20255 transitions. [2021-07-09 16:54:38,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:38,044 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:38,044 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:38,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-07-09 16:54:38,044 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:38,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:38,044 INFO L82 PathProgramCache]: Analyzing trace with hash 76240089, now seen corresponding path program 29 times [2021-07-09 16:54:38,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:38,045 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660914971] [2021-07-09 16:54:38,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:38,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:38,360 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:38,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660914971] [2021-07-09 16:54:38,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660914971] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:38,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:38,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:54:38,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710726947] [2021-07-09 16:54:38,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:54:38,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:38,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:54:38,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:54:38,361 INFO L87 Difference]: Start difference. First operand 7476 states and 20255 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:39,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:39,385 INFO L93 Difference]: Finished difference Result 9666 states and 24906 transitions. [2021-07-09 16:54:39,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:54:39,385 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:39,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:39,399 INFO L225 Difference]: With dead ends: 9666 [2021-07-09 16:54:39,399 INFO L226 Difference]: Without dead ends: 9666 [2021-07-09 16:54:39,399 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 707.7ms TimeCoverageRelationStatistics Valid=257, Invalid=799, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:54:39,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9666 states. [2021-07-09 16:54:39,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9666 to 7478. [2021-07-09 16:54:39,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7478 states, 7476 states have (on average 2.7100053504547885) internal successors, (20260), 7477 states have internal predecessors, (20260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:39,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7478 states to 7478 states and 20260 transitions. [2021-07-09 16:54:39,557 INFO L78 Accepts]: Start accepts. Automaton has 7478 states and 20260 transitions. Word has length 113 [2021-07-09 16:54:39,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:39,557 INFO L482 AbstractCegarLoop]: Abstraction has 7478 states and 20260 transitions. [2021-07-09 16:54:39,557 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:39,557 INFO L276 IsEmpty]: Start isEmpty. Operand 7478 states and 20260 transitions. [2021-07-09 16:54:39,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:39,569 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:39,569 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:39,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-07-09 16:54:39,570 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:39,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:39,571 INFO L82 PathProgramCache]: Analyzing trace with hash -157952235, now seen corresponding path program 30 times [2021-07-09 16:54:39,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:39,571 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978468992] [2021-07-09 16:54:39,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:39,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:39,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:39,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978468992] [2021-07-09 16:54:39,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978468992] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:39,905 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:39,905 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:54:39,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852846727] [2021-07-09 16:54:39,905 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:54:39,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:39,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:54:39,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:54:39,906 INFO L87 Difference]: Start difference. First operand 7478 states and 20260 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:40,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:40,941 INFO L93 Difference]: Finished difference Result 9266 states and 24061 transitions. [2021-07-09 16:54:40,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:54:40,941 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:40,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:40,955 INFO L225 Difference]: With dead ends: 9266 [2021-07-09 16:54:40,955 INFO L226 Difference]: Without dead ends: 9266 [2021-07-09 16:54:40,955 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 805.5ms TimeCoverageRelationStatistics Valid=281, Invalid=841, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:54:40,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9266 states. [2021-07-09 16:54:41,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9266 to 7470. [2021-07-09 16:54:41,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7470 states, 7468 states have (on average 2.7102303160149974) internal successors, (20240), 7469 states have internal predecessors, (20240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:41,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7470 states to 7470 states and 20240 transitions. [2021-07-09 16:54:41,107 INFO L78 Accepts]: Start accepts. Automaton has 7470 states and 20240 transitions. Word has length 113 [2021-07-09 16:54:41,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:41,107 INFO L482 AbstractCegarLoop]: Abstraction has 7470 states and 20240 transitions. [2021-07-09 16:54:41,107 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:41,107 INFO L276 IsEmpty]: Start isEmpty. Operand 7470 states and 20240 transitions. [2021-07-09 16:54:41,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:41,117 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:41,117 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:41,117 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-07-09 16:54:41,117 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:41,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:41,117 INFO L82 PathProgramCache]: Analyzing trace with hash -854415405, now seen corresponding path program 31 times [2021-07-09 16:54:41,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:41,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494578660] [2021-07-09 16:54:41,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:41,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:41,532 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:41,532 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494578660] [2021-07-09 16:54:41,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494578660] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:41,532 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:41,532 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:54:41,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943609955] [2021-07-09 16:54:41,533 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:54:41,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:41,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:54:41,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:54:41,533 INFO L87 Difference]: Start difference. First operand 7470 states and 20240 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:42,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:42,544 INFO L93 Difference]: Finished difference Result 8879 states and 23256 transitions. [2021-07-09 16:54:42,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:54:42,544 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:42,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:42,559 INFO L225 Difference]: With dead ends: 8879 [2021-07-09 16:54:42,560 INFO L226 Difference]: Without dead ends: 8879 [2021-07-09 16:54:42,560 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 785.3ms TimeCoverageRelationStatistics Valid=256, Invalid=800, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:54:42,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8879 states. [2021-07-09 16:54:42,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8879 to 7460. [2021-07-09 16:54:42,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7460 states, 7458 states have (on average 2.710512201662644) internal successors, (20215), 7459 states have internal predecessors, (20215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:42,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7460 states to 7460 states and 20215 transitions. [2021-07-09 16:54:42,719 INFO L78 Accepts]: Start accepts. Automaton has 7460 states and 20215 transitions. Word has length 113 [2021-07-09 16:54:42,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:42,719 INFO L482 AbstractCegarLoop]: Abstraction has 7460 states and 20215 transitions. [2021-07-09 16:54:42,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:42,719 INFO L276 IsEmpty]: Start isEmpty. Operand 7460 states and 20215 transitions. [2021-07-09 16:54:42,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:42,730 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:42,730 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:42,730 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-07-09 16:54:42,730 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:42,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:42,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1088607729, now seen corresponding path program 32 times [2021-07-09 16:54:42,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:42,731 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794118219] [2021-07-09 16:54:42,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:43,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:43,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:43,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794118219] [2021-07-09 16:54:43,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794118219] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:43,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:43,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:54:43,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342737998] [2021-07-09 16:54:43,094 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:54:43,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:43,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:54:43,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:54:43,095 INFO L87 Difference]: Start difference. First operand 7460 states and 20215 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:44,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:44,354 INFO L93 Difference]: Finished difference Result 9456 states and 24447 transitions. [2021-07-09 16:54:44,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:54:44,355 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:44,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:44,367 INFO L225 Difference]: With dead ends: 9456 [2021-07-09 16:54:44,367 INFO L226 Difference]: Without dead ends: 9456 [2021-07-09 16:54:44,367 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 885.2ms TimeCoverageRelationStatistics Valid=280, Invalid=842, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:54:44,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9456 states. [2021-07-09 16:54:44,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9456 to 7458. [2021-07-09 16:54:44,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7458 states, 7456 states have (on average 2.710568669527897) internal successors, (20210), 7457 states have internal predecessors, (20210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:44,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7458 states to 7458 states and 20210 transitions. [2021-07-09 16:54:44,503 INFO L78 Accepts]: Start accepts. Automaton has 7458 states and 20210 transitions. Word has length 113 [2021-07-09 16:54:44,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:44,503 INFO L482 AbstractCegarLoop]: Abstraction has 7458 states and 20210 transitions. [2021-07-09 16:54:44,503 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:44,503 INFO L276 IsEmpty]: Start isEmpty. Operand 7458 states and 20210 transitions. [2021-07-09 16:54:44,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-09 16:54:44,512 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:44,512 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:44,512 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-07-09 16:54:44,512 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:44,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:44,513 INFO L82 PathProgramCache]: Analyzing trace with hash -487527817, now seen corresponding path program 33 times [2021-07-09 16:54:44,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:44,513 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407249226] [2021-07-09 16:54:44,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:44,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:44,812 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:44,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407249226] [2021-07-09 16:54:44,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407249226] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:44,812 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:44,812 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:54:44,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300012664] [2021-07-09 16:54:44,812 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:54:44,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:44,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:54:44,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:54:44,813 INFO L87 Difference]: Start difference. First operand 7458 states and 20210 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:45,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:45,904 INFO L93 Difference]: Finished difference Result 8505 states and 22492 transitions. [2021-07-09 16:54:45,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:54:45,904 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-09 16:54:45,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:45,917 INFO L225 Difference]: With dead ends: 8505 [2021-07-09 16:54:45,918 INFO L226 Difference]: Without dead ends: 8505 [2021-07-09 16:54:45,918 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 858.8ms TimeCoverageRelationStatistics Valid=303, Invalid=887, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:54:45,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8505 states. [2021-07-09 16:54:46,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8505 to 6990. [2021-07-09 16:54:46,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6990 states, 6989 states have (on average 2.7507511804263842) internal successors, (19225), 6989 states have internal predecessors, (19225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:46,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6990 states to 6990 states and 19225 transitions. [2021-07-09 16:54:46,070 INFO L78 Accepts]: Start accepts. Automaton has 6990 states and 19225 transitions. Word has length 113 [2021-07-09 16:54:46,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:46,071 INFO L482 AbstractCegarLoop]: Abstraction has 6990 states and 19225 transitions. [2021-07-09 16:54:46,071 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:46,071 INFO L276 IsEmpty]: Start isEmpty. Operand 6990 states and 19225 transitions. [2021-07-09 16:54:46,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:54:46,079 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:46,079 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:46,079 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-07-09 16:54:46,080 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:46,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:46,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1070559471, now seen corresponding path program 1 times [2021-07-09 16:54:46,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:46,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760331189] [2021-07-09 16:54:46,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:46,510 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2021-07-09 16:54:46,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:46,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:46,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760331189] [2021-07-09 16:54:46,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760331189] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:46,516 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:46,516 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:54:46,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588567058] [2021-07-09 16:54:46,517 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:54:46,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:46,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:54:46,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:54:46,517 INFO L87 Difference]: Start difference. First operand 6990 states and 19225 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:47,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:47,124 INFO L93 Difference]: Finished difference Result 7776 states and 21089 transitions. [2021-07-09 16:54:47,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:54:47,125 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:54:47,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:47,137 INFO L225 Difference]: With dead ends: 7776 [2021-07-09 16:54:47,137 INFO L226 Difference]: Without dead ends: 7776 [2021-07-09 16:54:47,138 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 599.1ms TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2021-07-09 16:54:47,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7776 states. [2021-07-09 16:54:47,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7776 to 7092. [2021-07-09 16:54:47,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7092 states, 7091 states have (on average 2.7252855732618815) internal successors, (19325), 7091 states have internal predecessors, (19325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:47,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7092 states to 7092 states and 19325 transitions. [2021-07-09 16:54:47,256 INFO L78 Accepts]: Start accepts. Automaton has 7092 states and 19325 transitions. Word has length 119 [2021-07-09 16:54:47,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:47,257 INFO L482 AbstractCegarLoop]: Abstraction has 7092 states and 19325 transitions. [2021-07-09 16:54:47,257 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:47,257 INFO L276 IsEmpty]: Start isEmpty. Operand 7092 states and 19325 transitions. [2021-07-09 16:54:47,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:54:47,266 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:47,266 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:47,266 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-07-09 16:54:47,266 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:47,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:47,267 INFO L82 PathProgramCache]: Analyzing trace with hash -511780789, now seen corresponding path program 2 times [2021-07-09 16:54:47,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:47,267 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808227156] [2021-07-09 16:54:47,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:48,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:48,087 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:48,087 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808227156] [2021-07-09 16:54:48,087 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808227156] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:48,087 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:48,087 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:54:48,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302026434] [2021-07-09 16:54:48,088 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:54:48,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:48,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:54:48,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:54:48,088 INFO L87 Difference]: Start difference. First operand 7092 states and 19325 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:49,181 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2021-07-09 16:54:49,449 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-07-09 16:54:51,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:51,403 INFO L93 Difference]: Finished difference Result 10942 states and 29534 transitions. [2021-07-09 16:54:51,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 16:54:51,403 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:54:51,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:51,421 INFO L225 Difference]: With dead ends: 10942 [2021-07-09 16:54:51,421 INFO L226 Difference]: Without dead ends: 10626 [2021-07-09 16:54:51,421 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 2821.1ms TimeCoverageRelationStatistics Valid=570, Invalid=2970, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 16:54:51,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10626 states. [2021-07-09 16:54:51,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10626 to 8460. [2021-07-09 16:54:51,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8460 states, 8459 states have (on average 2.743232060527249) internal successors, (23205), 8459 states have internal predecessors, (23205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:51,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8460 states to 8460 states and 23205 transitions. [2021-07-09 16:54:51,580 INFO L78 Accepts]: Start accepts. Automaton has 8460 states and 23205 transitions. Word has length 119 [2021-07-09 16:54:51,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:51,580 INFO L482 AbstractCegarLoop]: Abstraction has 8460 states and 23205 transitions. [2021-07-09 16:54:51,580 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:51,581 INFO L276 IsEmpty]: Start isEmpty. Operand 8460 states and 23205 transitions. [2021-07-09 16:54:51,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:54:51,591 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:51,591 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:51,591 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-07-09 16:54:51,591 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:51,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:51,592 INFO L82 PathProgramCache]: Analyzing trace with hash 492066409, now seen corresponding path program 3 times [2021-07-09 16:54:51,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:51,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097233324] [2021-07-09 16:54:51,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:52,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:52,502 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:52,502 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097233324] [2021-07-09 16:54:52,502 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097233324] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:52,502 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:52,502 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:54:52,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549863805] [2021-07-09 16:54:52,503 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:54:52,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:52,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:54:52,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:54:52,503 INFO L87 Difference]: Start difference. First operand 8460 states and 23205 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:53,597 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-07-09 16:54:53,841 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-07-09 16:54:55,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:55,948 INFO L93 Difference]: Finished difference Result 11275 states and 30450 transitions. [2021-07-09 16:54:55,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 16:54:55,949 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:54:55,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:55,963 INFO L225 Difference]: With dead ends: 11275 [2021-07-09 16:54:55,963 INFO L226 Difference]: Without dead ends: 10509 [2021-07-09 16:54:55,963 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 2983.4ms TimeCoverageRelationStatistics Valid=613, Invalid=2927, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 16:54:55,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10509 states. [2021-07-09 16:54:56,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10509 to 8580. [2021-07-09 16:54:56,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8580 states, 8579 states have (on average 2.7300384660216808) internal successors, (23421), 8579 states have internal predecessors, (23421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:56,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8580 states to 8580 states and 23421 transitions. [2021-07-09 16:54:56,118 INFO L78 Accepts]: Start accepts. Automaton has 8580 states and 23421 transitions. Word has length 119 [2021-07-09 16:54:56,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:56,118 INFO L482 AbstractCegarLoop]: Abstraction has 8580 states and 23421 transitions. [2021-07-09 16:54:56,118 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:56,118 INFO L276 IsEmpty]: Start isEmpty. Operand 8580 states and 23421 transitions. [2021-07-09 16:54:56,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:54:56,129 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:56,129 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:56,129 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-07-09 16:54:56,129 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:56,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:56,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1700491773, now seen corresponding path program 4 times [2021-07-09 16:54:56,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:56,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175161437] [2021-07-09 16:54:56,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:56,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:56,946 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:56,947 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175161437] [2021-07-09 16:54:56,947 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175161437] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:56,947 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:56,947 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:54:56,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643023632] [2021-07-09 16:54:56,947 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:54:56,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:56,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:54:56,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:54:56,948 INFO L87 Difference]: Start difference. First operand 8580 states and 23421 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:58,032 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-07-09 16:54:58,308 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-07-09 16:55:00,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:00,362 INFO L93 Difference]: Finished difference Result 10700 states and 28827 transitions. [2021-07-09 16:55:00,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-09 16:55:00,363 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:55:00,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:00,378 INFO L225 Difference]: With dead ends: 10700 [2021-07-09 16:55:00,378 INFO L226 Difference]: Without dead ends: 9861 [2021-07-09 16:55:00,379 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 2964.1ms TimeCoverageRelationStatistics Valid=634, Invalid=3148, Unknown=0, NotChecked=0, Total=3782 [2021-07-09 16:55:00,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9861 states. [2021-07-09 16:55:00,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9861 to 7932. [2021-07-09 16:55:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7932 states, 7931 states have (on average 2.728659689824738) internal successors, (21641), 7931 states have internal predecessors, (21641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:00,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7932 states to 7932 states and 21641 transitions. [2021-07-09 16:55:00,527 INFO L78 Accepts]: Start accepts. Automaton has 7932 states and 21641 transitions. Word has length 119 [2021-07-09 16:55:00,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:00,528 INFO L482 AbstractCegarLoop]: Abstraction has 7932 states and 21641 transitions. [2021-07-09 16:55:00,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:00,528 INFO L276 IsEmpty]: Start isEmpty. Operand 7932 states and 21641 transitions. [2021-07-09 16:55:00,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:55:00,538 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:00,538 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:00,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-07-09 16:55:00,538 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:00,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:00,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1095390169, now seen corresponding path program 5 times [2021-07-09 16:55:00,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:00,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791590447] [2021-07-09 16:55:00,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:01,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:55:01,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:01,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791590447] [2021-07-09 16:55:01,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791590447] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:01,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:01,365 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:55:01,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297778653] [2021-07-09 16:55:01,365 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:55:01,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:01,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:55:01,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:55:01,366 INFO L87 Difference]: Start difference. First operand 7932 states and 21641 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:02,470 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2021-07-09 16:55:02,713 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-07-09 16:55:03,171 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-07-09 16:55:04,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:04,747 INFO L93 Difference]: Finished difference Result 9363 states and 25222 transitions. [2021-07-09 16:55:04,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 16:55:04,748 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:55:04,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:04,760 INFO L225 Difference]: With dead ends: 9363 [2021-07-09 16:55:04,761 INFO L226 Difference]: Without dead ends: 9006 [2021-07-09 16:55:04,761 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 2846.6ms TimeCoverageRelationStatistics Valid=623, Invalid=2917, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 16:55:04,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9006 states. [2021-07-09 16:55:04,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9006 to 7915. [2021-07-09 16:55:04,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7915 states, 7914 states have (on average 2.7292140510487743) internal successors, (21599), 7914 states have internal predecessors, (21599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:04,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7915 states to 7915 states and 21599 transitions. [2021-07-09 16:55:04,892 INFO L78 Accepts]: Start accepts. Automaton has 7915 states and 21599 transitions. Word has length 119 [2021-07-09 16:55:04,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:04,892 INFO L482 AbstractCegarLoop]: Abstraction has 7915 states and 21599 transitions. [2021-07-09 16:55:04,892 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:04,892 INFO L276 IsEmpty]: Start isEmpty. Operand 7915 states and 21599 transitions. [2021-07-09 16:55:04,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:55:04,902 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:04,902 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:04,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-07-09 16:55:04,902 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:04,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:04,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1799705483, now seen corresponding path program 6 times [2021-07-09 16:55:04,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:04,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805450734] [2021-07-09 16:55:04,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:05,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:55:05,694 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:05,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805450734] [2021-07-09 16:55:05,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805450734] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:05,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:05,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:55:05,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276323291] [2021-07-09 16:55:05,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:55:05,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:05,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:55:05,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:55:05,695 INFO L87 Difference]: Start difference. First operand 7915 states and 21599 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:06,781 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2021-07-09 16:55:07,202 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-07-09 16:55:07,466 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-07-09 16:55:09,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:09,246 INFO L93 Difference]: Finished difference Result 9042 states and 24331 transitions. [2021-07-09 16:55:09,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 16:55:09,246 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:55:09,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:09,260 INFO L225 Difference]: With dead ends: 9042 [2021-07-09 16:55:09,261 INFO L226 Difference]: Without dead ends: 8600 [2021-07-09 16:55:09,261 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 3028.1ms TimeCoverageRelationStatistics Valid=596, Invalid=2826, Unknown=0, NotChecked=0, Total=3422 [2021-07-09 16:55:09,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8600 states. [2021-07-09 16:55:09,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8600 to 7874. [2021-07-09 16:55:09,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7874 states, 7873 states have (on average 2.729455099707862) internal successors, (21489), 7873 states have internal predecessors, (21489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:09,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7874 states to 7874 states and 21489 transitions. [2021-07-09 16:55:09,397 INFO L78 Accepts]: Start accepts. Automaton has 7874 states and 21489 transitions. Word has length 119 [2021-07-09 16:55:09,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:09,397 INFO L482 AbstractCegarLoop]: Abstraction has 7874 states and 21489 transitions. [2021-07-09 16:55:09,398 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:09,398 INFO L276 IsEmpty]: Start isEmpty. Operand 7874 states and 21489 transitions. [2021-07-09 16:55:09,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:55:09,407 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:09,408 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:09,408 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-07-09 16:55:09,408 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:09,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:09,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1366805005, now seen corresponding path program 7 times [2021-07-09 16:55:09,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:09,408 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619870290] [2021-07-09 16:55:09,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:10,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:55:10,207 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:10,207 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619870290] [2021-07-09 16:55:10,207 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619870290] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:10,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:10,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:55:10,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823309691] [2021-07-09 16:55:10,208 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:55:10,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:10,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:55:10,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:55:10,208 INFO L87 Difference]: Start difference. First operand 7874 states and 21489 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:11,406 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2021-07-09 16:55:11,565 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-07-09 16:55:13,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:13,872 INFO L93 Difference]: Finished difference Result 11480 states and 30789 transitions. [2021-07-09 16:55:13,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-09 16:55:13,873 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:55:13,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:13,889 INFO L225 Difference]: With dead ends: 11480 [2021-07-09 16:55:13,889 INFO L226 Difference]: Without dead ends: 11164 [2021-07-09 16:55:13,890 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 3058.4ms TimeCoverageRelationStatistics Valid=597, Invalid=3063, Unknown=0, NotChecked=0, Total=3660 [2021-07-09 16:55:13,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11164 states. [2021-07-09 16:55:14,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11164 to 8642. [2021-07-09 16:55:14,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8642 states, 8641 states have (on average 2.7275778266404354) internal successors, (23569), 8641 states have internal predecessors, (23569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:14,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8642 states to 8642 states and 23569 transitions. [2021-07-09 16:55:14,059 INFO L78 Accepts]: Start accepts. Automaton has 8642 states and 23569 transitions. Word has length 119 [2021-07-09 16:55:14,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:14,059 INFO L482 AbstractCegarLoop]: Abstraction has 8642 states and 23569 transitions. [2021-07-09 16:55:14,059 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:14,059 INFO L276 IsEmpty]: Start isEmpty. Operand 8642 states and 23569 transitions. [2021-07-09 16:55:14,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:55:14,071 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:14,071 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:14,071 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-07-09 16:55:14,071 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:14,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:14,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1924315093, now seen corresponding path program 8 times [2021-07-09 16:55:14,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:14,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909073505] [2021-07-09 16:55:14,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:14,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:14,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:55:14,798 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:14,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909073505] [2021-07-09 16:55:14,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909073505] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:14,799 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:14,799 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:55:14,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250390319] [2021-07-09 16:55:14,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:55:14,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:14,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:55:14,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:55:14,800 INFO L87 Difference]: Start difference. First operand 8642 states and 23569 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:15,952 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2021-07-09 16:55:16,140 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-07-09 16:55:18,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:18,363 INFO L93 Difference]: Finished difference Result 11813 states and 31705 transitions. [2021-07-09 16:55:18,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-09 16:55:18,363 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:55:18,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:18,380 INFO L225 Difference]: With dead ends: 11813 [2021-07-09 16:55:18,380 INFO L226 Difference]: Without dead ends: 11047 [2021-07-09 16:55:18,380 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 2981.7ms TimeCoverageRelationStatistics Valid=642, Invalid=3018, Unknown=0, NotChecked=0, Total=3660 [2021-07-09 16:55:18,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11047 states. [2021-07-09 16:55:18,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11047 to 8762. [2021-07-09 16:55:18,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8762 states, 8761 states have (on average 2.7148727314233536) internal successors, (23785), 8761 states have internal predecessors, (23785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:18,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8762 states to 8762 states and 23785 transitions. [2021-07-09 16:55:18,550 INFO L78 Accepts]: Start accepts. Automaton has 8762 states and 23785 transitions. Word has length 119 [2021-07-09 16:55:18,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:18,550 INFO L482 AbstractCegarLoop]: Abstraction has 8762 states and 23785 transitions. [2021-07-09 16:55:18,550 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:18,550 INFO L276 IsEmpty]: Start isEmpty. Operand 8762 states and 23785 transitions. [2021-07-09 16:55:18,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:55:18,562 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:18,562 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:18,562 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-07-09 16:55:18,562 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:18,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:18,562 INFO L82 PathProgramCache]: Analyzing trace with hash -715889729, now seen corresponding path program 9 times [2021-07-09 16:55:18,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:18,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949246877] [2021-07-09 16:55:18,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:19,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:55:19,480 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:19,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949246877] [2021-07-09 16:55:19,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949246877] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:19,480 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:19,480 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:55:19,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424204508] [2021-07-09 16:55:19,481 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:55:19,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:19,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:55:19,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:55:19,482 INFO L87 Difference]: Start difference. First operand 8762 states and 23785 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:20,612 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2021-07-09 16:55:20,770 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-07-09 16:55:23,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:23,146 INFO L93 Difference]: Finished difference Result 11238 states and 30082 transitions. [2021-07-09 16:55:23,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-07-09 16:55:23,146 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:55:23,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:23,160 INFO L225 Difference]: With dead ends: 11238 [2021-07-09 16:55:23,160 INFO L226 Difference]: Without dead ends: 10399 [2021-07-09 16:55:23,161 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 3314.2ms TimeCoverageRelationStatistics Valid=665, Invalid=3241, Unknown=0, NotChecked=0, Total=3906 [2021-07-09 16:55:23,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10399 states. [2021-07-09 16:55:23,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10399 to 8114. [2021-07-09 16:55:23,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8114 states, 8113 states have (on average 2.7123135708122765) internal successors, (22005), 8113 states have internal predecessors, (22005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:23,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8114 states to 8114 states and 22005 transitions. [2021-07-09 16:55:23,301 INFO L78 Accepts]: Start accepts. Automaton has 8114 states and 22005 transitions. Word has length 119 [2021-07-09 16:55:23,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:23,301 INFO L482 AbstractCegarLoop]: Abstraction has 8114 states and 22005 transitions. [2021-07-09 16:55:23,301 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:23,301 INFO L276 IsEmpty]: Start isEmpty. Operand 8114 states and 22005 transitions. [2021-07-09 16:55:23,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:55:23,311 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:23,311 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:23,311 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-07-09 16:55:23,311 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:23,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:23,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1320991333, now seen corresponding path program 10 times [2021-07-09 16:55:23,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:23,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041597544] [2021-07-09 16:55:23,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:24,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:55:24,019 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:24,019 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041597544] [2021-07-09 16:55:24,019 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041597544] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:24,019 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:24,019 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:55:24,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748293499] [2021-07-09 16:55:24,020 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:55:24,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:24,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:55:24,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:55:24,020 INFO L87 Difference]: Start difference. First operand 8114 states and 22005 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:25,218 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2021-07-09 16:55:25,379 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-07-09 16:55:25,956 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-07-09 16:55:27,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:27,631 INFO L93 Difference]: Finished difference Result 9873 states and 26395 transitions. [2021-07-09 16:55:27,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-09 16:55:27,632 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:55:27,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:27,646 INFO L225 Difference]: With dead ends: 9873 [2021-07-09 16:55:27,646 INFO L226 Difference]: Without dead ends: 9516 [2021-07-09 16:55:27,647 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 2973.0ms TimeCoverageRelationStatistics Valid=653, Invalid=3007, Unknown=0, NotChecked=0, Total=3660 [2021-07-09 16:55:27,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9516 states. [2021-07-09 16:55:27,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9516 to 7946. [2021-07-09 16:55:27,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7946 states, 7945 states have (on average 2.727375707992448) internal successors, (21669), 7945 states have internal predecessors, (21669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:27,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7946 states to 7946 states and 21669 transitions. [2021-07-09 16:55:27,845 INFO L78 Accepts]: Start accepts. Automaton has 7946 states and 21669 transitions. Word has length 119 [2021-07-09 16:55:27,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:27,845 INFO L482 AbstractCegarLoop]: Abstraction has 7946 states and 21669 transitions. [2021-07-09 16:55:27,845 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:27,845 INFO L276 IsEmpty]: Start isEmpty. Operand 7946 states and 21669 transitions. [2021-07-09 16:55:27,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:55:27,855 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:27,855 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:27,855 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-07-09 16:55:27,855 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:27,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:27,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1471718441, now seen corresponding path program 11 times [2021-07-09 16:55:27,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:27,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584117237] [2021-07-09 16:55:27,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:28,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:55:28,574 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:28,574 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584117237] [2021-07-09 16:55:28,575 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584117237] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:28,575 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:28,575 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:55:28,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192448455] [2021-07-09 16:55:28,575 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:55:28,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:28,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:55:28,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:55:28,577 INFO L87 Difference]: Start difference. First operand 7946 states and 21669 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:29,755 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2021-07-09 16:55:30,872 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-07-09 16:55:31,117 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2021-07-09 16:55:32,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:32,135 INFO L93 Difference]: Finished difference Result 10986 states and 29504 transitions. [2021-07-09 16:55:32,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 16:55:32,135 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:55:32,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:32,153 INFO L225 Difference]: With dead ends: 10986 [2021-07-09 16:55:32,153 INFO L226 Difference]: Without dead ends: 10670 [2021-07-09 16:55:32,154 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 2911.4ms TimeCoverageRelationStatistics Valid=543, Invalid=2763, Unknown=0, NotChecked=0, Total=3306 [2021-07-09 16:55:32,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2021-07-09 16:55:32,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 8726. [2021-07-09 16:55:32,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8726 states, 8725 states have (on average 2.726074498567335) internal successors, (23785), 8725 states have internal predecessors, (23785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:32,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8726 states to 8726 states and 23785 transitions. [2021-07-09 16:55:32,346 INFO L78 Accepts]: Start accepts. Automaton has 8726 states and 23785 transitions. Word has length 119 [2021-07-09 16:55:32,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:32,346 INFO L482 AbstractCegarLoop]: Abstraction has 8726 states and 23785 transitions. [2021-07-09 16:55:32,346 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:32,346 INFO L276 IsEmpty]: Start isEmpty. Operand 8726 states and 23785 transitions. [2021-07-09 16:55:32,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:55:32,359 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:32,359 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:32,359 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-07-09 16:55:32,359 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:32,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:32,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1819401657, now seen corresponding path program 12 times [2021-07-09 16:55:32,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:32,360 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242568877] [2021-07-09 16:55:32,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:33,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:55:33,638 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:33,638 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242568877] [2021-07-09 16:55:33,638 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242568877] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:33,638 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:33,638 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:55:33,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593341712] [2021-07-09 16:55:33,639 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:55:33,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:33,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:55:33,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:55:33,639 INFO L87 Difference]: Start difference. First operand 8726 states and 23785 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:34,826 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2021-07-09 16:55:37,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:37,139 INFO L93 Difference]: Finished difference Result 11346 states and 30358 transitions. [2021-07-09 16:55:37,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-09 16:55:37,139 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:55:37,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:37,156 INFO L225 Difference]: With dead ends: 11346 [2021-07-09 16:55:37,156 INFO L226 Difference]: Without dead ends: 10580 [2021-07-09 16:55:37,157 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 3324.9ms TimeCoverageRelationStatistics Valid=622, Invalid=3038, Unknown=0, NotChecked=0, Total=3660 [2021-07-09 16:55:37,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10580 states. [2021-07-09 16:55:37,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10580 to 8846. [2021-07-09 16:55:37,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8846 states, 8845 states have (on average 2.7135104578858114) internal successors, (24001), 8845 states have internal predecessors, (24001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:37,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8846 states to 8846 states and 24001 transitions. [2021-07-09 16:55:37,322 INFO L78 Accepts]: Start accepts. Automaton has 8846 states and 24001 transitions. Word has length 119 [2021-07-09 16:55:37,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:37,322 INFO L482 AbstractCegarLoop]: Abstraction has 8846 states and 24001 transitions. [2021-07-09 16:55:37,322 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:37,322 INFO L276 IsEmpty]: Start isEmpty. Operand 8846 states and 24001 transitions. [2021-07-09 16:55:37,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:55:37,380 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:37,380 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:37,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-07-09 16:55:37,380 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:37,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:37,381 INFO L82 PathProgramCache]: Analyzing trace with hash -610976293, now seen corresponding path program 13 times [2021-07-09 16:55:37,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:37,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285046616] [2021-07-09 16:55:37,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:38,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:55:38,248 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:38,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285046616] [2021-07-09 16:55:38,248 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285046616] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:38,248 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:38,248 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:55:38,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789944850] [2021-07-09 16:55:38,248 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:55:38,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:38,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:55:38,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:55:38,249 INFO L87 Difference]: Start difference. First operand 8846 states and 24001 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:39,491 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2021-07-09 16:55:40,749 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2021-07-09 16:55:42,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:42,209 INFO L93 Difference]: Finished difference Result 10771 states and 28735 transitions. [2021-07-09 16:55:42,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-07-09 16:55:42,210 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:55:42,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:42,224 INFO L225 Difference]: With dead ends: 10771 [2021-07-09 16:55:42,225 INFO L226 Difference]: Without dead ends: 9932 [2021-07-09 16:55:42,225 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 3335.8ms TimeCoverageRelationStatistics Valid=648, Invalid=3258, Unknown=0, NotChecked=0, Total=3906 [2021-07-09 16:55:42,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9932 states. [2021-07-09 16:55:42,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9932 to 8198. [2021-07-09 16:55:42,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8198 states, 8197 states have (on average 2.700622178845919) internal successors, (22137), 8197 states have internal predecessors, (22137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:42,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8198 states to 8198 states and 22137 transitions. [2021-07-09 16:55:42,371 INFO L78 Accepts]: Start accepts. Automaton has 8198 states and 22137 transitions. Word has length 119 [2021-07-09 16:55:42,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:42,371 INFO L482 AbstractCegarLoop]: Abstraction has 8198 states and 22137 transitions. [2021-07-09 16:55:42,371 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:42,371 INFO L276 IsEmpty]: Start isEmpty. Operand 8198 states and 22137 transitions. [2021-07-09 16:55:42,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:55:42,382 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:42,382 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:42,382 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-07-09 16:55:42,382 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:42,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:42,382 INFO L82 PathProgramCache]: Analyzing trace with hash 45955191, now seen corresponding path program 14 times [2021-07-09 16:55:42,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:42,383 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106357041] [2021-07-09 16:55:42,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:43,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:55:43,191 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:43,192 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106357041] [2021-07-09 16:55:43,192 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106357041] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:43,192 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:43,192 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:55:43,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733317239] [2021-07-09 16:55:43,192 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:55:43,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:43,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:55:43,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:55:43,193 INFO L87 Difference]: Start difference. First operand 8198 states and 22137 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:44,424 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2021-07-09 16:55:46,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:46,791 INFO L93 Difference]: Finished difference Result 10212 states and 27037 transitions. [2021-07-09 16:55:46,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-09 16:55:46,791 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:55:46,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:46,804 INFO L225 Difference]: With dead ends: 10212 [2021-07-09 16:55:46,804 INFO L226 Difference]: Without dead ends: 9604 [2021-07-09 16:55:46,805 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 3009.2ms TimeCoverageRelationStatistics Valid=589, Invalid=3071, Unknown=0, NotChecked=0, Total=3660 [2021-07-09 16:55:46,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9604 states. [2021-07-09 16:55:46,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9604 to 7946. [2021-07-09 16:55:46,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7946 states, 7945 states have (on average 2.718313404657017) internal successors, (21597), 7945 states have internal predecessors, (21597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:46,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7946 states to 7946 states and 21597 transitions. [2021-07-09 16:55:46,938 INFO L78 Accepts]: Start accepts. Automaton has 7946 states and 21597 transitions. Word has length 119 [2021-07-09 16:55:46,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:46,939 INFO L482 AbstractCegarLoop]: Abstraction has 7946 states and 21597 transitions. [2021-07-09 16:55:46,939 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:46,939 INFO L276 IsEmpty]: Start isEmpty. Operand 7946 states and 21597 transitions. [2021-07-09 16:55:46,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:55:46,948 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:46,948 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:46,949 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-07-09 16:55:46,949 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:46,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:46,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1724988173, now seen corresponding path program 15 times [2021-07-09 16:55:46,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:46,949 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260764453] [2021-07-09 16:55:46,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:47,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:55:47,690 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:47,690 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260764453] [2021-07-09 16:55:47,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260764453] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:47,690 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:47,690 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:55:47,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524174426] [2021-07-09 16:55:47,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:55:47,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:47,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:55:47,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:55:47,691 INFO L87 Difference]: Start difference. First operand 7946 states and 21597 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:48,839 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2021-07-09 16:55:49,242 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-07-09 16:55:49,392 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-07-09 16:55:51,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:51,180 INFO L93 Difference]: Finished difference Result 9168 states and 24455 transitions. [2021-07-09 16:55:51,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-09 16:55:51,181 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:55:51,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:51,196 INFO L225 Difference]: With dead ends: 9168 [2021-07-09 16:55:51,196 INFO L226 Difference]: Without dead ends: 8847 [2021-07-09 16:55:51,197 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 2980.4ms TimeCoverageRelationStatistics Valid=653, Invalid=3007, Unknown=0, NotChecked=0, Total=3660 [2021-07-09 16:55:51,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8847 states. [2021-07-09 16:55:51,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8847 to 7956. [2021-07-09 16:55:51,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7956 states, 7955 states have (on average 2.717536140791955) internal successors, (21618), 7955 states have internal predecessors, (21618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:51,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7956 states to 7956 states and 21618 transitions. [2021-07-09 16:55:51,326 INFO L78 Accepts]: Start accepts. Automaton has 7956 states and 21618 transitions. Word has length 119 [2021-07-09 16:55:51,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:51,326 INFO L482 AbstractCegarLoop]: Abstraction has 7956 states and 21618 transitions. [2021-07-09 16:55:51,326 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:51,326 INFO L276 IsEmpty]: Start isEmpty. Operand 7956 states and 21618 transitions. [2021-07-09 16:55:51,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:55:51,335 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:51,335 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:51,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-07-09 16:55:51,336 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:51,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:51,336 INFO L82 PathProgramCache]: Analyzing trace with hash -418903319, now seen corresponding path program 16 times [2021-07-09 16:55:51,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:51,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705638804] [2021-07-09 16:55:51,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:52,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:55:52,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:52,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705638804] [2021-07-09 16:55:52,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705638804] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:52,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:52,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:55:52,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907777689] [2021-07-09 16:55:52,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:55:52,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:52,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:55:52,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:55:52,084 INFO L87 Difference]: Start difference. First operand 7956 states and 21618 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:53,273 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2021-07-09 16:55:53,677 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-07-09 16:55:55,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:55,573 INFO L93 Difference]: Finished difference Result 9092 states and 24275 transitions. [2021-07-09 16:55:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-09 16:55:55,573 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:55:55,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:55,584 INFO L225 Difference]: With dead ends: 9092 [2021-07-09 16:55:55,584 INFO L226 Difference]: Without dead ends: 8695 [2021-07-09 16:55:55,584 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 2970.9ms TimeCoverageRelationStatistics Valid=635, Invalid=3025, Unknown=0, NotChecked=0, Total=3660 [2021-07-09 16:55:55,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8695 states. [2021-07-09 16:55:55,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8695 to 7915. [2021-07-09 16:55:55,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7915 states, 7914 states have (on average 2.7208743997978266) internal successors, (21533), 7914 states have internal predecessors, (21533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:55,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7915 states to 7915 states and 21533 transitions. [2021-07-09 16:55:55,701 INFO L78 Accepts]: Start accepts. Automaton has 7915 states and 21533 transitions. Word has length 119 [2021-07-09 16:55:55,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:55,701 INFO L482 AbstractCegarLoop]: Abstraction has 7915 states and 21533 transitions. [2021-07-09 16:55:55,701 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:55,701 INFO L276 IsEmpty]: Start isEmpty. Operand 7915 states and 21533 transitions. [2021-07-09 16:55:55,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:55:55,711 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:55,711 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:55,711 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-07-09 16:55:55,711 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:55,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:55,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1735789657, now seen corresponding path program 17 times [2021-07-09 16:55:55,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:55,711 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041417515] [2021-07-09 16:55:55,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:56,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:55:56,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:56,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041417515] [2021-07-09 16:55:56,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041417515] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:55:56,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:55:56,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:55:56,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139286754] [2021-07-09 16:55:56,458 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:55:56,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:56,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:55:56,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:55:56,458 INFO L87 Difference]: Start difference. First operand 7915 states and 21533 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:57,768 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2021-07-09 16:55:57,924 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-07-09 16:55:58,143 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-07-09 16:55:58,295 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-07-09 16:55:59,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:59,774 INFO L93 Difference]: Finished difference Result 8778 states and 23446 transitions. [2021-07-09 16:55:59,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 16:55:59,775 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:55:59,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:59,786 INFO L225 Difference]: With dead ends: 8778 [2021-07-09 16:55:59,786 INFO L226 Difference]: Without dead ends: 8444 [2021-07-09 16:55:59,786 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 2789.2ms TimeCoverageRelationStatistics Valid=596, Invalid=2826, Unknown=0, NotChecked=0, Total=3422 [2021-07-09 16:55:59,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8444 states. [2021-07-09 16:55:59,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8444 to 7969. [2021-07-09 16:55:59,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7969 states, 7968 states have (on average 2.719628514056225) internal successors, (21670), 7968 states have internal predecessors, (21670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:59,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7969 states to 7969 states and 21670 transitions. [2021-07-09 16:55:59,912 INFO L78 Accepts]: Start accepts. Automaton has 7969 states and 21670 transitions. Word has length 119 [2021-07-09 16:55:59,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:59,912 INFO L482 AbstractCegarLoop]: Abstraction has 7969 states and 21670 transitions. [2021-07-09 16:55:59,912 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:59,912 INFO L276 IsEmpty]: Start isEmpty. Operand 7969 states and 21670 transitions. [2021-07-09 16:55:59,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:55:59,922 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:59,922 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:59,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-07-09 16:55:59,922 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:59,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:59,922 INFO L82 PathProgramCache]: Analyzing trace with hash -2039816869, now seen corresponding path program 18 times [2021-07-09 16:55:59,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:59,922 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830577451] [2021-07-09 16:55:59,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:00,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:56:00,678 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:00,679 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830577451] [2021-07-09 16:56:00,679 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830577451] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:00,679 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:00,679 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:56:00,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372984472] [2021-07-09 16:56:00,679 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:56:00,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:00,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:56:00,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:56:00,679 INFO L87 Difference]: Start difference. First operand 7969 states and 21670 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:01,960 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2021-07-09 16:56:02,130 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-07-09 16:56:02,291 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-07-09 16:56:04,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:04,066 INFO L93 Difference]: Finished difference Result 8779 states and 23433 transitions. [2021-07-09 16:56:04,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 16:56:04,066 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:56:04,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:04,079 INFO L225 Difference]: With dead ends: 8779 [2021-07-09 16:56:04,079 INFO L226 Difference]: Without dead ends: 8458 [2021-07-09 16:56:04,079 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 2928.1ms TimeCoverageRelationStatistics Valid=623, Invalid=2917, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 16:56:04,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8458 states. [2021-07-09 16:56:04,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8458 to 7979. [2021-07-09 16:56:04,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7979 states, 7978 states have (on average 2.7188518425670596) internal successors, (21691), 7978 states have internal predecessors, (21691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:04,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7979 states to 7979 states and 21691 transitions. [2021-07-09 16:56:04,229 INFO L78 Accepts]: Start accepts. Automaton has 7979 states and 21691 transitions. Word has length 119 [2021-07-09 16:56:04,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:04,229 INFO L482 AbstractCegarLoop]: Abstraction has 7979 states and 21691 transitions. [2021-07-09 16:56:04,229 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:04,229 INFO L276 IsEmpty]: Start isEmpty. Operand 7979 states and 21691 transitions. [2021-07-09 16:56:04,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:56:04,239 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:04,239 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:04,239 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-07-09 16:56:04,239 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:04,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:04,240 INFO L82 PathProgramCache]: Analyzing trace with hash -59965065, now seen corresponding path program 19 times [2021-07-09 16:56:04,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:04,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126145774] [2021-07-09 16:56:04,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:04,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:56:04,993 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:04,993 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126145774] [2021-07-09 16:56:04,993 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126145774] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:04,993 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:04,993 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:56:04,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129426014] [2021-07-09 16:56:04,993 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:56:04,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:04,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:56:04,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:56:04,994 INFO L87 Difference]: Start difference. First operand 7979 states and 21691 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:06,246 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2021-07-09 16:56:06,414 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-07-09 16:56:07,107 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-07-09 16:56:08,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:08,254 INFO L93 Difference]: Finished difference Result 8699 states and 23243 transitions. [2021-07-09 16:56:08,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 16:56:08,254 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:56:08,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:08,264 INFO L225 Difference]: With dead ends: 8699 [2021-07-09 16:56:08,264 INFO L226 Difference]: Without dead ends: 8217 [2021-07-09 16:56:08,264 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 2897.6ms TimeCoverageRelationStatistics Valid=606, Invalid=2934, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 16:56:08,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8217 states. [2021-07-09 16:56:08,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8217 to 7848. [2021-07-09 16:56:08,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7848 states, 7847 states have (on average 2.722059385752517) internal successors, (21360), 7847 states have internal predecessors, (21360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:08,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7848 states to 7848 states and 21360 transitions. [2021-07-09 16:56:08,359 INFO L78 Accepts]: Start accepts. Automaton has 7848 states and 21360 transitions. Word has length 119 [2021-07-09 16:56:08,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:08,359 INFO L482 AbstractCegarLoop]: Abstraction has 7848 states and 21360 transitions. [2021-07-09 16:56:08,359 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:08,359 INFO L276 IsEmpty]: Start isEmpty. Operand 7848 states and 21360 transitions. [2021-07-09 16:56:08,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:56:08,367 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:08,367 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:08,367 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-07-09 16:56:08,367 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:08,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:08,368 INFO L82 PathProgramCache]: Analyzing trace with hash 544085611, now seen corresponding path program 20 times [2021-07-09 16:56:08,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:08,368 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412772880] [2021-07-09 16:56:08,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:09,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:56:09,111 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:09,111 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412772880] [2021-07-09 16:56:09,111 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412772880] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:09,111 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:09,111 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:56:09,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575055603] [2021-07-09 16:56:09,112 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:56:09,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:09,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:56:09,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:56:09,112 INFO L87 Difference]: Start difference. First operand 7848 states and 21360 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:10,300 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2021-07-09 16:56:10,479 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-07-09 16:56:12,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:12,098 INFO L93 Difference]: Finished difference Result 9159 states and 24622 transitions. [2021-07-09 16:56:12,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 16:56:12,098 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:56:12,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:12,112 INFO L225 Difference]: With dead ends: 9159 [2021-07-09 16:56:12,112 INFO L226 Difference]: Without dead ends: 8939 [2021-07-09 16:56:12,113 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2592.6ms TimeCoverageRelationStatistics Valid=506, Invalid=2574, Unknown=0, NotChecked=0, Total=3080 [2021-07-09 16:56:12,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8939 states. [2021-07-09 16:56:12,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8939 to 8184. [2021-07-09 16:56:12,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8184 states, 8183 states have (on average 2.71245264572895) internal successors, (22196), 8183 states have internal predecessors, (22196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:12,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8184 states to 8184 states and 22196 transitions. [2021-07-09 16:56:12,247 INFO L78 Accepts]: Start accepts. Automaton has 8184 states and 22196 transitions. Word has length 119 [2021-07-09 16:56:12,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:12,247 INFO L482 AbstractCegarLoop]: Abstraction has 8184 states and 22196 transitions. [2021-07-09 16:56:12,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:12,248 INFO L276 IsEmpty]: Start isEmpty. Operand 8184 states and 22196 transitions. [2021-07-09 16:56:12,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:56:12,257 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:12,257 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:12,257 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-07-09 16:56:12,257 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:12,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:12,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1547932809, now seen corresponding path program 21 times [2021-07-09 16:56:12,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:12,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921131725] [2021-07-09 16:56:12,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:12,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:12,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:56:12,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:12,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921131725] [2021-07-09 16:56:12,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921131725] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:12,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:12,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:56:12,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934071734] [2021-07-09 16:56:12,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:56:12,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:12,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:56:12,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:56:12,981 INFO L87 Difference]: Start difference. First operand 8184 states and 22196 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:14,193 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-07-09 16:56:14,348 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-07-09 16:56:16,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:16,066 INFO L93 Difference]: Finished difference Result 9363 states and 25076 transitions. [2021-07-09 16:56:16,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-09 16:56:16,066 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:56:16,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:16,077 INFO L225 Difference]: With dead ends: 9363 [2021-07-09 16:56:16,077 INFO L226 Difference]: Without dead ends: 8887 [2021-07-09 16:56:16,077 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2649.0ms TimeCoverageRelationStatistics Valid=535, Invalid=2657, Unknown=0, NotChecked=0, Total=3192 [2021-07-09 16:56:16,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8887 states. [2021-07-09 16:56:16,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8887 to 8256. [2021-07-09 16:56:16,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8256 states, 8255 states have (on average 2.7033313143549362) internal successors, (22316), 8255 states have internal predecessors, (22316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:16,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8256 states to 8256 states and 22316 transitions. [2021-07-09 16:56:16,193 INFO L78 Accepts]: Start accepts. Automaton has 8256 states and 22316 transitions. Word has length 119 [2021-07-09 16:56:16,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:16,193 INFO L482 AbstractCegarLoop]: Abstraction has 8256 states and 22316 transitions. [2021-07-09 16:56:16,193 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:16,194 INFO L276 IsEmpty]: Start isEmpty. Operand 8256 states and 22316 transitions. [2021-07-09 16:56:16,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:56:16,203 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:16,203 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:16,203 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-07-09 16:56:16,203 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:16,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:16,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1538609123, now seen corresponding path program 22 times [2021-07-09 16:56:16,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:16,204 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515146567] [2021-07-09 16:56:16,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:16,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:56:16,924 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:16,925 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515146567] [2021-07-09 16:56:16,925 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515146567] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:16,925 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:16,925 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:56:16,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747435476] [2021-07-09 16:56:16,925 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:56:16,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:16,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:56:16,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:56:16,926 INFO L87 Difference]: Start difference. First operand 8256 states and 22316 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:18,252 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-07-09 16:56:18,521 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-07-09 16:56:19,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:19,962 INFO L93 Difference]: Finished difference Result 9020 states and 24153 transitions. [2021-07-09 16:56:19,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 16:56:19,962 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:56:19,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:19,976 INFO L225 Difference]: With dead ends: 9020 [2021-07-09 16:56:19,976 INFO L226 Difference]: Without dead ends: 8479 [2021-07-09 16:56:19,976 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 2680.6ms TimeCoverageRelationStatistics Valid=537, Invalid=2769, Unknown=0, NotChecked=0, Total=3306 [2021-07-09 16:56:19,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8479 states. [2021-07-09 16:56:20,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8479 to 7848. [2021-07-09 16:56:20,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7848 states, 7847 states have (on average 2.7174716452147316) internal successors, (21324), 7847 states have internal predecessors, (21324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:20,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7848 states to 7848 states and 21324 transitions. [2021-07-09 16:56:20,106 INFO L78 Accepts]: Start accepts. Automaton has 7848 states and 21324 transitions. Word has length 119 [2021-07-09 16:56:20,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:20,106 INFO L482 AbstractCegarLoop]: Abstraction has 7848 states and 21324 transitions. [2021-07-09 16:56:20,106 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:20,106 INFO L276 IsEmpty]: Start isEmpty. Operand 7848 states and 21324 transitions. [2021-07-09 16:56:20,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:56:20,118 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:20,118 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:20,118 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-07-09 16:56:20,118 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:20,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:20,118 INFO L82 PathProgramCache]: Analyzing trace with hash -2143710727, now seen corresponding path program 23 times [2021-07-09 16:56:20,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:20,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14631340] [2021-07-09 16:56:20,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:20,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:56:20,810 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:20,810 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14631340] [2021-07-09 16:56:20,810 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14631340] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:20,810 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:20,811 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:56:20,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818806141] [2021-07-09 16:56:20,811 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:56:20,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:20,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:56:20,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:56:20,812 INFO L87 Difference]: Start difference. First operand 7848 states and 21324 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:22,019 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2021-07-09 16:56:22,174 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-07-09 16:56:22,701 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-09 16:56:23,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:23,758 INFO L93 Difference]: Finished difference Result 8528 states and 22983 transitions. [2021-07-09 16:56:23,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 16:56:23,758 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:56:23,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:23,770 INFO L225 Difference]: With dead ends: 8528 [2021-07-09 16:56:23,770 INFO L226 Difference]: Without dead ends: 8267 [2021-07-09 16:56:23,770 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 2607.6ms TimeCoverageRelationStatistics Valid=523, Invalid=2557, Unknown=0, NotChecked=0, Total=3080 [2021-07-09 16:56:23,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8267 states. [2021-07-09 16:56:23,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8267 to 7812. [2021-07-09 16:56:23,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7812 states, 7811 states have (on average 2.7207783894507744) internal successors, (21252), 7811 states have internal predecessors, (21252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:23,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7812 states to 7812 states and 21252 transitions. [2021-07-09 16:56:23,891 INFO L78 Accepts]: Start accepts. Automaton has 7812 states and 21252 transitions. Word has length 119 [2021-07-09 16:56:23,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:23,892 INFO L482 AbstractCegarLoop]: Abstraction has 7812 states and 21252 transitions. [2021-07-09 16:56:23,892 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:23,892 INFO L276 IsEmpty]: Start isEmpty. Operand 7812 states and 21252 transitions. [2021-07-09 16:56:23,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:56:23,901 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:23,901 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:23,901 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-07-09 16:56:23,901 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:23,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:23,901 INFO L82 PathProgramCache]: Analyzing trace with hash 648999047, now seen corresponding path program 24 times [2021-07-09 16:56:23,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:23,902 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110349731] [2021-07-09 16:56:23,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:24,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:56:24,683 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:24,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110349731] [2021-07-09 16:56:24,683 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110349731] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:24,683 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:24,683 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:56:24,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31919971] [2021-07-09 16:56:24,683 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:56:24,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:24,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:56:24,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:56:24,684 INFO L87 Difference]: Start difference. First operand 7812 states and 21252 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:25,933 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2021-07-09 16:56:27,203 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-07-09 16:56:27,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:27,868 INFO L93 Difference]: Finished difference Result 9413 states and 25272 transitions. [2021-07-09 16:56:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 16:56:27,868 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:56:27,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:27,880 INFO L225 Difference]: With dead ends: 9413 [2021-07-09 16:56:27,880 INFO L226 Difference]: Without dead ends: 9193 [2021-07-09 16:56:27,880 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 2609.6ms TimeCoverageRelationStatistics Valid=495, Invalid=2585, Unknown=0, NotChecked=0, Total=3080 [2021-07-09 16:56:27,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9193 states. [2021-07-09 16:56:27,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9193 to 8328. [2021-07-09 16:56:27,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8328 states, 8327 states have (on average 2.7131019574876905) internal successors, (22592), 8327 states have internal predecessors, (22592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:28,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8328 states to 8328 states and 22592 transitions. [2021-07-09 16:56:28,006 INFO L78 Accepts]: Start accepts. Automaton has 8328 states and 22592 transitions. Word has length 119 [2021-07-09 16:56:28,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:28,006 INFO L482 AbstractCegarLoop]: Abstraction has 8328 states and 22592 transitions. [2021-07-09 16:56:28,006 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:28,006 INFO L276 IsEmpty]: Start isEmpty. Operand 8328 states and 22592 transitions. [2021-07-09 16:56:28,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:56:28,016 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:28,016 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:28,016 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-07-09 16:56:28,016 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:28,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:28,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1652846245, now seen corresponding path program 25 times [2021-07-09 16:56:28,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:28,017 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63477435] [2021-07-09 16:56:28,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:28,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:56:28,741 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:28,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63477435] [2021-07-09 16:56:28,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63477435] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:28,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:28,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:56:28,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949488820] [2021-07-09 16:56:28,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:56:28,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:28,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:56:28,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:56:28,742 INFO L87 Difference]: Start difference. First operand 8328 states and 22592 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:29,984 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-07-09 16:56:31,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:31,855 INFO L93 Difference]: Finished difference Result 9617 states and 25726 transitions. [2021-07-09 16:56:31,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-09 16:56:31,855 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:56:31,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:31,869 INFO L225 Difference]: With dead ends: 9617 [2021-07-09 16:56:31,869 INFO L226 Difference]: Without dead ends: 9141 [2021-07-09 16:56:31,869 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 2618.7ms TimeCoverageRelationStatistics Valid=521, Invalid=2671, Unknown=0, NotChecked=0, Total=3192 [2021-07-09 16:56:31,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9141 states. [2021-07-09 16:56:31,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9141 to 8400. [2021-07-09 16:56:31,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8400 states, 8399 states have (on average 2.70413144421955) internal successors, (22712), 8399 states have internal predecessors, (22712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:32,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8400 states to 8400 states and 22712 transitions. [2021-07-09 16:56:32,010 INFO L78 Accepts]: Start accepts. Automaton has 8400 states and 22712 transitions. Word has length 119 [2021-07-09 16:56:32,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:32,010 INFO L482 AbstractCegarLoop]: Abstraction has 8400 states and 22712 transitions. [2021-07-09 16:56:32,010 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:32,010 INFO L276 IsEmpty]: Start isEmpty. Operand 8400 states and 22712 transitions. [2021-07-09 16:56:32,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:56:32,021 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:32,021 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:32,021 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-07-09 16:56:32,021 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:32,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:32,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1433695687, now seen corresponding path program 26 times [2021-07-09 16:56:32,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:32,022 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133301797] [2021-07-09 16:56:32,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:32,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:56:32,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:32,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133301797] [2021-07-09 16:56:32,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133301797] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:32,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:32,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:56:32,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656603791] [2021-07-09 16:56:32,781 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:56:32,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:32,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:56:32,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:56:32,782 INFO L87 Difference]: Start difference. First operand 8400 states and 22712 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:35,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:35,690 INFO L93 Difference]: Finished difference Result 9274 states and 24803 transitions. [2021-07-09 16:56:35,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 16:56:35,690 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:56:35,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:35,703 INFO L225 Difference]: With dead ends: 9274 [2021-07-09 16:56:35,703 INFO L226 Difference]: Without dead ends: 8733 [2021-07-09 16:56:35,704 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 2533.3ms TimeCoverageRelationStatistics Valid=528, Invalid=2778, Unknown=0, NotChecked=0, Total=3306 [2021-07-09 16:56:35,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8733 states. [2021-07-09 16:56:35,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8733 to 7992. [2021-07-09 16:56:35,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7992 states, 7991 states have (on average 2.7000375422350142) internal successors, (21576), 7991 states have internal predecessors, (21576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:35,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7992 states to 7992 states and 21576 transitions. [2021-07-09 16:56:35,851 INFO L78 Accepts]: Start accepts. Automaton has 7992 states and 21576 transitions. Word has length 119 [2021-07-09 16:56:35,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:35,852 INFO L482 AbstractCegarLoop]: Abstraction has 7992 states and 21576 transitions. [2021-07-09 16:56:35,852 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:35,852 INFO L276 IsEmpty]: Start isEmpty. Operand 7992 states and 21576 transitions. [2021-07-09 16:56:35,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:56:35,861 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:35,861 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:35,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-07-09 16:56:35,861 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:35,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:35,862 INFO L82 PathProgramCache]: Analyzing trace with hash -776764203, now seen corresponding path program 27 times [2021-07-09 16:56:35,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:35,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017259000] [2021-07-09 16:56:35,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:36,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:56:36,632 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:36,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017259000] [2021-07-09 16:56:36,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017259000] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:36,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:36,636 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:56:36,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517514485] [2021-07-09 16:56:36,637 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:56:36,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:36,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:56:36,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:56:36,637 INFO L87 Difference]: Start difference. First operand 7992 states and 21576 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:39,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:39,681 INFO L93 Difference]: Finished difference Result 8802 states and 23544 transitions. [2021-07-09 16:56:39,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 16:56:39,681 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:56:39,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:39,693 INFO L225 Difference]: With dead ends: 8802 [2021-07-09 16:56:39,693 INFO L226 Difference]: Without dead ends: 8372 [2021-07-09 16:56:39,694 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 2583.0ms TimeCoverageRelationStatistics Valid=495, Invalid=2585, Unknown=0, NotChecked=0, Total=3080 [2021-07-09 16:56:39,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8372 states. [2021-07-09 16:56:39,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8372 to 7812. [2021-07-09 16:56:39,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7812 states, 7811 states have (on average 2.716169504544873) internal successors, (21216), 7811 states have internal predecessors, (21216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:39,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7812 states to 7812 states and 21216 transitions. [2021-07-09 16:56:39,806 INFO L78 Accepts]: Start accepts. Automaton has 7812 states and 21216 transitions. Word has length 119 [2021-07-09 16:56:39,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:39,806 INFO L482 AbstractCegarLoop]: Abstraction has 7812 states and 21216 transitions. [2021-07-09 16:56:39,806 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:39,806 INFO L276 IsEmpty]: Start isEmpty. Operand 7812 states and 21216 transitions. [2021-07-09 16:56:39,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:56:39,815 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:39,815 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:39,815 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-07-09 16:56:39,815 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:39,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:39,816 INFO L82 PathProgramCache]: Analyzing trace with hash 902268779, now seen corresponding path program 28 times [2021-07-09 16:56:39,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:39,816 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119733667] [2021-07-09 16:56:39,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:40,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:56:40,511 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:40,511 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119733667] [2021-07-09 16:56:40,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119733667] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:40,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:40,511 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:56:40,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641324328] [2021-07-09 16:56:40,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:56:40,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:40,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:56:40,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:56:40,512 INFO L87 Difference]: Start difference. First operand 7812 states and 21216 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:42,158 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-09 16:56:42,309 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-09 16:56:43,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:43,514 INFO L93 Difference]: Finished difference Result 8507 states and 22909 transitions. [2021-07-09 16:56:43,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 16:56:43,515 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:56:43,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:43,528 INFO L225 Difference]: With dead ends: 8507 [2021-07-09 16:56:43,528 INFO L226 Difference]: Without dead ends: 8282 [2021-07-09 16:56:43,528 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 2584.4ms TimeCoverageRelationStatistics Valid=523, Invalid=2557, Unknown=0, NotChecked=0, Total=3080 [2021-07-09 16:56:43,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8282 states. [2021-07-09 16:56:43,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8282 to 7817. [2021-07-09 16:56:43,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7817 states, 7816 states have (on average 2.7154554759467757) internal successors, (21224), 7816 states have internal predecessors, (21224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:43,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7817 states to 7817 states and 21224 transitions. [2021-07-09 16:56:43,655 INFO L78 Accepts]: Start accepts. Automaton has 7817 states and 21224 transitions. Word has length 119 [2021-07-09 16:56:43,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:43,655 INFO L482 AbstractCegarLoop]: Abstraction has 7817 states and 21224 transitions. [2021-07-09 16:56:43,655 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:43,655 INFO L276 IsEmpty]: Start isEmpty. Operand 7817 states and 21224 transitions. [2021-07-09 16:56:43,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:56:43,664 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:43,664 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:43,664 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-07-09 16:56:43,665 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:43,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:43,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1241622713, now seen corresponding path program 29 times [2021-07-09 16:56:43,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:43,665 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035815291] [2021-07-09 16:56:43,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:44,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:56:44,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:44,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035815291] [2021-07-09 16:56:44,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035815291] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:44,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:44,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:56:44,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299673665] [2021-07-09 16:56:44,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:56:44,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:44,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:56:44,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:56:44,523 INFO L87 Difference]: Start difference. First operand 7817 states and 21224 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:46,203 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-09 16:56:47,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:47,612 INFO L93 Difference]: Finished difference Result 8527 states and 22959 transitions. [2021-07-09 16:56:47,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 16:56:47,613 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:56:47,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:47,623 INFO L225 Difference]: With dead ends: 8527 [2021-07-09 16:56:47,623 INFO L226 Difference]: Without dead ends: 8236 [2021-07-09 16:56:47,624 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2755.1ms TimeCoverageRelationStatistics Valid=506, Invalid=2574, Unknown=0, NotChecked=0, Total=3080 [2021-07-09 16:56:47,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8236 states. [2021-07-09 16:56:47,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8236 to 7776. [2021-07-09 16:56:47,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7776 states, 7775 states have (on average 2.7194855305466237) internal successors, (21144), 7775 states have internal predecessors, (21144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:47,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7776 states to 7776 states and 21144 transitions. [2021-07-09 16:56:47,731 INFO L78 Accepts]: Start accepts. Automaton has 7776 states and 21144 transitions. Word has length 119 [2021-07-09 16:56:47,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:47,731 INFO L482 AbstractCegarLoop]: Abstraction has 7776 states and 21144 transitions. [2021-07-09 16:56:47,731 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:47,731 INFO L276 IsEmpty]: Start isEmpty. Operand 7776 states and 21144 transitions. [2021-07-09 16:56:47,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:56:47,740 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:47,740 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:47,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-07-09 16:56:47,740 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:47,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:47,741 INFO L82 PathProgramCache]: Analyzing trace with hash 980078989, now seen corresponding path program 30 times [2021-07-09 16:56:47,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:47,741 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919796092] [2021-07-09 16:56:47,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:48,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:56:48,395 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:48,395 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919796092] [2021-07-09 16:56:48,395 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919796092] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:48,395 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:48,395 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:56:48,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300383911] [2021-07-09 16:56:48,395 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:56:48,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:48,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:56:48,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:56:48,396 INFO L87 Difference]: Start difference. First operand 7776 states and 21144 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:51,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:51,419 INFO L93 Difference]: Finished difference Result 10086 states and 27016 transitions. [2021-07-09 16:56:51,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 16:56:51,419 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:56:51,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:51,434 INFO L225 Difference]: With dead ends: 10086 [2021-07-09 16:56:51,434 INFO L226 Difference]: Without dead ends: 9866 [2021-07-09 16:56:51,434 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 2446.9ms TimeCoverageRelationStatistics Valid=490, Invalid=2590, Unknown=0, NotChecked=0, Total=3080 [2021-07-09 16:56:51,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9866 states. [2021-07-09 16:56:51,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9866 to 8148. [2021-07-09 16:56:51,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8148 states, 8147 states have (on average 2.715600834663066) internal successors, (22124), 8147 states have internal predecessors, (22124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:51,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8148 states to 8148 states and 22124 transitions. [2021-07-09 16:56:51,583 INFO L78 Accepts]: Start accepts. Automaton has 8148 states and 22124 transitions. Word has length 119 [2021-07-09 16:56:51,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:51,583 INFO L482 AbstractCegarLoop]: Abstraction has 8148 states and 22124 transitions. [2021-07-09 16:56:51,583 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:51,583 INFO L276 IsEmpty]: Start isEmpty. Operand 8148 states and 22124 transitions. [2021-07-09 16:56:51,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:56:51,593 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:51,593 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:51,594 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-07-09 16:56:51,594 INFO L430 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:51,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:51,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1983926187, now seen corresponding path program 31 times [2021-07-09 16:56:51,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:51,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675174823] [2021-07-09 16:56:51,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:52,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:56:52,272 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:52,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675174823] [2021-07-09 16:56:52,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675174823] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:52,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:52,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:56:52,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564070492] [2021-07-09 16:56:52,273 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:56:52,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:52,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:56:52,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:56:52,274 INFO L87 Difference]: Start difference. First operand 8148 states and 22124 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:52,969 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2021-07-09 16:56:54,389 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2021-07-09 16:56:55,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:55,490 INFO L93 Difference]: Finished difference Result 10290 states and 27470 transitions. [2021-07-09 16:56:55,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-09 16:56:55,491 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:56:55,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:55,506 INFO L225 Difference]: With dead ends: 10290 [2021-07-09 16:56:55,506 INFO L226 Difference]: Without dead ends: 9814 [2021-07-09 16:56:55,507 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 2614.6ms TimeCoverageRelationStatistics Valid=513, Invalid=2679, Unknown=0, NotChecked=0, Total=3192 [2021-07-09 16:56:55,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9814 states. [2021-07-09 16:56:55,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9814 to 8220. [2021-07-09 16:56:55,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8220 states, 8219 states have (on average 2.706411972259399) internal successors, (22244), 8219 states have internal predecessors, (22244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:55,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8220 states to 8220 states and 22244 transitions. [2021-07-09 16:56:55,654 INFO L78 Accepts]: Start accepts. Automaton has 8220 states and 22244 transitions. Word has length 119 [2021-07-09 16:56:55,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:55,654 INFO L482 AbstractCegarLoop]: Abstraction has 8220 states and 22244 transitions. [2021-07-09 16:56:55,654 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:55,655 INFO L276 IsEmpty]: Start isEmpty. Operand 8220 states and 22244 transitions. [2021-07-09 16:56:55,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:56:55,665 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:55,665 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:55,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-07-09 16:56:55,665 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:55,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:55,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1102615745, now seen corresponding path program 32 times [2021-07-09 16:56:55,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:55,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430125898] [2021-07-09 16:56:55,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:55,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:56,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:56:56,510 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:56,511 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430125898] [2021-07-09 16:56:56,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430125898] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:56:56,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:56:56,511 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:56:56,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605925843] [2021-07-09 16:56:56,511 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:56:56,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:56,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:56:56,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:56:56,512 INFO L87 Difference]: Start difference. First operand 8220 states and 22244 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:58,590 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2021-07-09 16:56:58,865 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2021-07-09 16:56:59,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:59,765 INFO L93 Difference]: Finished difference Result 9947 states and 26547 transitions. [2021-07-09 16:56:59,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 16:56:59,765 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:56:59,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:59,778 INFO L225 Difference]: With dead ends: 9947 [2021-07-09 16:56:59,778 INFO L226 Difference]: Without dead ends: 9406 [2021-07-09 16:56:59,778 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 2783.4ms TimeCoverageRelationStatistics Valid=519, Invalid=2787, Unknown=0, NotChecked=0, Total=3306 [2021-07-09 16:56:59,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9406 states. [2021-07-09 16:56:59,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9406 to 7567. [2021-07-09 16:56:59,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7567 states, 7566 states have (on average 2.6998413957176846) internal successors, (20427), 7566 states have internal predecessors, (20427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:59,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7567 states to 7567 states and 20427 transitions. [2021-07-09 16:56:59,900 INFO L78 Accepts]: Start accepts. Automaton has 7567 states and 20427 transitions. Word has length 119 [2021-07-09 16:56:59,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:59,900 INFO L482 AbstractCegarLoop]: Abstraction has 7567 states and 20427 transitions. [2021-07-09 16:56:59,900 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:59,900 INFO L276 IsEmpty]: Start isEmpty. Operand 7567 states and 20427 transitions. [2021-07-09 16:56:59,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:56:59,909 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:59,910 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:59,910 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-07-09 16:56:59,910 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:59,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:59,910 INFO L82 PathProgramCache]: Analyzing trace with hash -445684261, now seen corresponding path program 33 times [2021-07-09 16:56:59,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:59,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182861139] [2021-07-09 16:56:59,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:00,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:00,574 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:00,574 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182861139] [2021-07-09 16:57:00,574 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182861139] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:00,574 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:00,574 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:57:00,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397963702] [2021-07-09 16:57:00,575 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:57:00,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:00,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:57:00,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:57:00,575 INFO L87 Difference]: Start difference. First operand 7567 states and 20427 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:03,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:03,622 INFO L93 Difference]: Finished difference Result 9314 states and 24797 transitions. [2021-07-09 16:57:03,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 16:57:03,622 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:57:03,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:03,637 INFO L225 Difference]: With dead ends: 9314 [2021-07-09 16:57:03,637 INFO L226 Difference]: Without dead ends: 8884 [2021-07-09 16:57:03,637 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 2457.8ms TimeCoverageRelationStatistics Valid=490, Invalid=2590, Unknown=0, NotChecked=0, Total=3080 [2021-07-09 16:57:03,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8884 states. [2021-07-09 16:57:03,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8884 to 7387. [2021-07-09 16:57:03,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7387 states, 7386 states have (on average 2.697400487408611) internal successors, (19923), 7386 states have internal predecessors, (19923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:03,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7387 states to 7387 states and 19923 transitions. [2021-07-09 16:57:03,768 INFO L78 Accepts]: Start accepts. Automaton has 7387 states and 19923 transitions. Word has length 119 [2021-07-09 16:57:03,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:03,768 INFO L482 AbstractCegarLoop]: Abstraction has 7387 states and 19923 transitions. [2021-07-09 16:57:03,768 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:03,768 INFO L276 IsEmpty]: Start isEmpty. Operand 7387 states and 19923 transitions. [2021-07-09 16:57:03,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:57:03,778 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:03,778 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:03,778 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-07-09 16:57:03,778 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:03,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:03,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1012528597, now seen corresponding path program 34 times [2021-07-09 16:57:03,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:03,778 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49494560] [2021-07-09 16:57:03,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:04,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:04,486 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:04,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49494560] [2021-07-09 16:57:04,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49494560] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:04,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:04,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:57:04,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551570255] [2021-07-09 16:57:04,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:57:04,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:04,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:57:04,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:57:04,487 INFO L87 Difference]: Start difference. First operand 7387 states and 19923 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:06,459 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-07-09 16:57:06,917 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-07-09 16:57:07,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:07,880 INFO L93 Difference]: Finished difference Result 9452 states and 24974 transitions. [2021-07-09 16:57:07,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 16:57:07,880 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:57:07,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:07,892 INFO L225 Difference]: With dead ends: 9452 [2021-07-09 16:57:07,892 INFO L226 Difference]: Without dead ends: 8527 [2021-07-09 16:57:07,892 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 2827.0ms TimeCoverageRelationStatistics Valid=539, Invalid=2883, Unknown=0, NotChecked=0, Total=3422 [2021-07-09 16:57:07,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8527 states. [2021-07-09 16:57:07,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8527 to 6802. [2021-07-09 16:57:07,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6802 states, 6801 states have (on average 2.7044552271724744) internal successors, (18393), 6801 states have internal predecessors, (18393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:08,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6802 states to 6802 states and 18393 transitions. [2021-07-09 16:57:08,004 INFO L78 Accepts]: Start accepts. Automaton has 6802 states and 18393 transitions. Word has length 119 [2021-07-09 16:57:08,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:08,004 INFO L482 AbstractCegarLoop]: Abstraction has 6802 states and 18393 transitions. [2021-07-09 16:57:08,004 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:08,004 INFO L276 IsEmpty]: Start isEmpty. Operand 6802 states and 18393 transitions. [2021-07-09 16:57:08,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:57:08,013 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:08,013 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:08,013 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-07-09 16:57:08,013 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:08,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:08,013 INFO L82 PathProgramCache]: Analyzing trace with hash 509963547, now seen corresponding path program 35 times [2021-07-09 16:57:08,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:08,013 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282613624] [2021-07-09 16:57:08,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:08,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:08,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:08,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282613624] [2021-07-09 16:57:08,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282613624] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:08,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:08,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:57:08,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973234040] [2021-07-09 16:57:08,726 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:57:08,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:08,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:57:08,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:57:08,726 INFO L87 Difference]: Start difference. First operand 6802 states and 18393 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:10,305 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-09 16:57:10,454 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-09 16:57:11,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:11,702 INFO L93 Difference]: Finished difference Result 7632 states and 20408 transitions. [2021-07-09 16:57:11,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 16:57:11,703 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:57:11,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:11,712 INFO L225 Difference]: With dead ends: 7632 [2021-07-09 16:57:11,712 INFO L226 Difference]: Without dead ends: 7407 [2021-07-09 16:57:11,713 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 2576.9ms TimeCoverageRelationStatistics Valid=523, Invalid=2557, Unknown=0, NotChecked=0, Total=3080 [2021-07-09 16:57:11,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7407 states. [2021-07-09 16:57:11,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7407 to 6822. [2021-07-09 16:57:11,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6822 states, 6821 states have (on average 2.703415921419147) internal successors, (18440), 6821 states have internal predecessors, (18440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:11,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6822 states to 6822 states and 18440 transitions. [2021-07-09 16:57:11,811 INFO L78 Accepts]: Start accepts. Automaton has 6822 states and 18440 transitions. Word has length 119 [2021-07-09 16:57:11,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:11,811 INFO L482 AbstractCegarLoop]: Abstraction has 6822 states and 18440 transitions. [2021-07-09 16:57:11,811 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:11,811 INFO L276 IsEmpty]: Start isEmpty. Operand 6822 states and 18440 transitions. [2021-07-09 16:57:11,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:57:11,819 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:11,819 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:11,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-07-09 16:57:11,820 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:11,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:11,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1633927945, now seen corresponding path program 36 times [2021-07-09 16:57:11,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:11,820 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953382615] [2021-07-09 16:57:11,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:12,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:12,587 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:12,587 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953382615] [2021-07-09 16:57:12,587 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953382615] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:12,587 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:12,587 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:57:12,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413387925] [2021-07-09 16:57:12,588 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:57:12,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:12,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:57:12,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:57:12,588 INFO L87 Difference]: Start difference. First operand 6822 states and 18440 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:13,441 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-07-09 16:57:14,216 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-09 16:57:15,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:15,635 INFO L93 Difference]: Finished difference Result 7657 states and 20466 transitions. [2021-07-09 16:57:15,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 16:57:15,636 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:57:15,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:15,646 INFO L225 Difference]: With dead ends: 7657 [2021-07-09 16:57:15,647 INFO L226 Difference]: Without dead ends: 7402 [2021-07-09 16:57:15,647 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 2642.9ms TimeCoverageRelationStatistics Valid=506, Invalid=2574, Unknown=0, NotChecked=0, Total=3080 [2021-07-09 16:57:15,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7402 states. [2021-07-09 16:57:15,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7402 to 6817. [2021-07-09 16:57:15,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6817 states, 6816 states have (on average 2.7034917840375585) internal successors, (18427), 6816 states have internal predecessors, (18427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:15,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6817 states to 6817 states and 18427 transitions. [2021-07-09 16:57:15,754 INFO L78 Accepts]: Start accepts. Automaton has 6817 states and 18427 transitions. Word has length 119 [2021-07-09 16:57:15,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:15,754 INFO L482 AbstractCegarLoop]: Abstraction has 6817 states and 18427 transitions. [2021-07-09 16:57:15,754 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:15,755 INFO L276 IsEmpty]: Start isEmpty. Operand 6817 states and 18427 transitions. [2021-07-09 16:57:15,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:57:15,763 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:15,763 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:15,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-07-09 16:57:15,763 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:15,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:15,764 INFO L82 PathProgramCache]: Analyzing trace with hash 453688539, now seen corresponding path program 37 times [2021-07-09 16:57:15,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:15,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33272149] [2021-07-09 16:57:15,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:16,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:16,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:16,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33272149] [2021-07-09 16:57:16,570 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33272149] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:16,570 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:16,570 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:57:16,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793112949] [2021-07-09 16:57:16,570 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:57:16,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:16,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:57:16,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:57:16,571 INFO L87 Difference]: Start difference. First operand 6817 states and 18427 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:19,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:19,740 INFO L93 Difference]: Finished difference Result 8055 states and 21328 transitions. [2021-07-09 16:57:19,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 16:57:19,740 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:57:19,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:19,750 INFO L225 Difference]: With dead ends: 8055 [2021-07-09 16:57:19,750 INFO L226 Difference]: Without dead ends: 7583 [2021-07-09 16:57:19,751 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 2822.5ms TimeCoverageRelationStatistics Valid=571, Invalid=2851, Unknown=0, NotChecked=0, Total=3422 [2021-07-09 16:57:19,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7583 states. [2021-07-09 16:57:19,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7583 to 6685. [2021-07-09 16:57:19,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6685 states, 6684 states have (on average 2.7060143626570916) internal successors, (18087), 6684 states have internal predecessors, (18087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:19,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6685 states to 6685 states and 18087 transitions. [2021-07-09 16:57:19,854 INFO L78 Accepts]: Start accepts. Automaton has 6685 states and 18087 transitions. Word has length 119 [2021-07-09 16:57:19,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:19,854 INFO L482 AbstractCegarLoop]: Abstraction has 6685 states and 18087 transitions. [2021-07-09 16:57:19,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:19,855 INFO L276 IsEmpty]: Start isEmpty. Operand 6685 states and 18087 transitions. [2021-07-09 16:57:19,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:57:19,863 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:19,863 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:19,863 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-07-09 16:57:19,863 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:19,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:19,863 INFO L82 PathProgramCache]: Analyzing trace with hash -401054229, now seen corresponding path program 38 times [2021-07-09 16:57:19,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:19,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276807456] [2021-07-09 16:57:19,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:20,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:20,576 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:20,576 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276807456] [2021-07-09 16:57:20,576 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276807456] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:20,576 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:20,577 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:57:20,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594335146] [2021-07-09 16:57:20,577 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:57:20,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:20,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:57:20,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:57:20,577 INFO L87 Difference]: Start difference. First operand 6685 states and 18087 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:21,989 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-07-09 16:57:22,212 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-09 16:57:23,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:23,809 INFO L93 Difference]: Finished difference Result 7585 states and 20128 transitions. [2021-07-09 16:57:23,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 16:57:23,809 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:57:23,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:23,819 INFO L225 Difference]: With dead ends: 7585 [2021-07-09 16:57:23,819 INFO L226 Difference]: Without dead ends: 7251 [2021-07-09 16:57:23,819 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 2681.4ms TimeCoverageRelationStatistics Valid=596, Invalid=2826, Unknown=0, NotChecked=0, Total=3422 [2021-07-09 16:57:23,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7251 states. [2021-07-09 16:57:23,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7251 to 6748. [2021-07-09 16:57:23,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6748 states, 6747 states have (on average 2.703720171928264) internal successors, (18242), 6747 states have internal predecessors, (18242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:23,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6748 states to 6748 states and 18242 transitions. [2021-07-09 16:57:23,919 INFO L78 Accepts]: Start accepts. Automaton has 6748 states and 18242 transitions. Word has length 119 [2021-07-09 16:57:23,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:23,919 INFO L482 AbstractCegarLoop]: Abstraction has 6748 states and 18242 transitions. [2021-07-09 16:57:23,920 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:23,920 INFO L276 IsEmpty]: Start isEmpty. Operand 6748 states and 18242 transitions. [2021-07-09 16:57:23,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:57:23,928 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:23,928 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:23,928 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-07-09 16:57:23,928 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:23,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:23,928 INFO L82 PathProgramCache]: Analyzing trace with hash 118306541, now seen corresponding path program 39 times [2021-07-09 16:57:23,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:23,928 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67650965] [2021-07-09 16:57:23,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:24,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:24,650 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:24,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67650965] [2021-07-09 16:57:24,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67650965] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:24,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:24,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:57:24,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446502482] [2021-07-09 16:57:24,650 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:57:24,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:24,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:57:24,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:57:24,651 INFO L87 Difference]: Start difference. First operand 6748 states and 18242 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:26,052 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-09 16:57:26,217 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-09 16:57:27,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:27,949 INFO L93 Difference]: Finished difference Result 7637 states and 20222 transitions. [2021-07-09 16:57:27,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 16:57:27,949 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:57:27,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:27,960 INFO L225 Difference]: With dead ends: 7637 [2021-07-09 16:57:27,960 INFO L226 Difference]: Without dead ends: 7316 [2021-07-09 16:57:27,961 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 2862.3ms TimeCoverageRelationStatistics Valid=623, Invalid=2917, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 16:57:27,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7316 states. [2021-07-09 16:57:28,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7316 to 6758. [2021-07-09 16:57:28,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6758 states, 6757 states have (on average 2.7028266982388636) internal successors, (18263), 6757 states have internal predecessors, (18263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:28,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6758 states to 6758 states and 18263 transitions. [2021-07-09 16:57:28,098 INFO L78 Accepts]: Start accepts. Automaton has 6758 states and 18263 transitions. Word has length 119 [2021-07-09 16:57:28,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:28,099 INFO L482 AbstractCegarLoop]: Abstraction has 6758 states and 18263 transitions. [2021-07-09 16:57:28,099 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:28,099 INFO L276 IsEmpty]: Start isEmpty. Operand 6758 states and 18263 transitions. [2021-07-09 16:57:28,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:57:28,107 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:28,107 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:28,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-07-09 16:57:28,107 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:28,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:28,108 INFO L82 PathProgramCache]: Analyzing trace with hash 2098158345, now seen corresponding path program 40 times [2021-07-09 16:57:28,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:28,108 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964407911] [2021-07-09 16:57:28,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:28,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:28,869 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:28,869 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964407911] [2021-07-09 16:57:28,869 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964407911] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:28,869 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:28,869 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:57:28,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36738242] [2021-07-09 16:57:28,869 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:57:28,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:28,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:57:28,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:57:28,870 INFO L87 Difference]: Start difference. First operand 6758 states and 18263 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:30,262 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-09 16:57:31,007 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-07-09 16:57:32,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:32,218 INFO L93 Difference]: Finished difference Result 7557 states and 20032 transitions. [2021-07-09 16:57:32,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 16:57:32,219 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:57:32,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:32,227 INFO L225 Difference]: With dead ends: 7557 [2021-07-09 16:57:32,227 INFO L226 Difference]: Without dead ends: 7183 [2021-07-09 16:57:32,227 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 2950.9ms TimeCoverageRelationStatistics Valid=606, Invalid=2934, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 16:57:32,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7183 states. [2021-07-09 16:57:32,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7183 to 6718. [2021-07-09 16:57:32,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6718 states, 6717 states have (on average 2.7037367872562155) internal successors, (18161), 6717 states have internal predecessors, (18161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:32,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6718 states to 6718 states and 18161 transitions. [2021-07-09 16:57:32,317 INFO L78 Accepts]: Start accepts. Automaton has 6718 states and 18161 transitions. Word has length 119 [2021-07-09 16:57:32,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:32,317 INFO L482 AbstractCegarLoop]: Abstraction has 6718 states and 18161 transitions. [2021-07-09 16:57:32,317 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:32,317 INFO L276 IsEmpty]: Start isEmpty. Operand 6718 states and 18161 transitions. [2021-07-09 16:57:32,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:57:32,326 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:32,326 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:32,326 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-07-09 16:57:32,326 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:32,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:32,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1974355477, now seen corresponding path program 41 times [2021-07-09 16:57:32,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:32,326 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42169797] [2021-07-09 16:57:32,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:33,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:33,046 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:33,046 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42169797] [2021-07-09 16:57:33,046 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42169797] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:33,046 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:33,046 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:57:33,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810757115] [2021-07-09 16:57:33,046 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:57:33,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:33,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:57:33,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:57:33,047 INFO L87 Difference]: Start difference. First operand 6718 states and 18161 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:34,594 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-09 16:57:34,749 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-09 16:57:35,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:35,952 INFO L93 Difference]: Finished difference Result 7214 states and 19272 transitions. [2021-07-09 16:57:35,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 16:57:35,952 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:57:35,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:35,963 INFO L225 Difference]: With dead ends: 7214 [2021-07-09 16:57:35,963 INFO L226 Difference]: Without dead ends: 6989 [2021-07-09 16:57:35,963 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 2569.3ms TimeCoverageRelationStatistics Valid=498, Invalid=2472, Unknown=0, NotChecked=0, Total=2970 [2021-07-09 16:57:35,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6989 states. [2021-07-09 16:57:36,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6989 to 6733. [2021-07-09 16:57:36,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6732 states have (on average 2.7026143790849675) internal successors, (18194), 6732 states have internal predecessors, (18194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:36,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 18194 transitions. [2021-07-09 16:57:36,062 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 18194 transitions. Word has length 119 [2021-07-09 16:57:36,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:36,062 INFO L482 AbstractCegarLoop]: Abstraction has 6733 states and 18194 transitions. [2021-07-09 16:57:36,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:36,062 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 18194 transitions. [2021-07-09 16:57:36,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:57:36,070 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:36,070 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:36,070 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-07-09 16:57:36,070 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:36,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:36,071 INFO L82 PathProgramCache]: Analyzing trace with hash 5496327, now seen corresponding path program 42 times [2021-07-09 16:57:36,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:36,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991719014] [2021-07-09 16:57:36,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:36,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:36,862 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:36,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991719014] [2021-07-09 16:57:36,862 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991719014] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:36,862 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:36,862 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:57:36,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125873002] [2021-07-09 16:57:36,862 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:57:36,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:36,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:57:36,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:57:36,863 INFO L87 Difference]: Start difference. First operand 6733 states and 18194 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:38,338 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-09 16:57:39,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:39,753 INFO L93 Difference]: Finished difference Result 7239 states and 19330 transitions. [2021-07-09 16:57:39,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 16:57:39,753 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:57:39,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:39,764 INFO L225 Difference]: With dead ends: 7239 [2021-07-09 16:57:39,764 INFO L226 Difference]: Without dead ends: 6984 [2021-07-09 16:57:39,764 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 2597.9ms TimeCoverageRelationStatistics Valid=482, Invalid=2488, Unknown=0, NotChecked=0, Total=2970 [2021-07-09 16:57:39,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6984 states. [2021-07-09 16:57:39,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6984 to 6728. [2021-07-09 16:57:39,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6728 states, 6727 states have (on average 2.7026906496209304) internal successors, (18181), 6727 states have internal predecessors, (18181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:39,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6728 states to 6728 states and 18181 transitions. [2021-07-09 16:57:39,884 INFO L78 Accepts]: Start accepts. Automaton has 6728 states and 18181 transitions. Word has length 119 [2021-07-09 16:57:39,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:39,884 INFO L482 AbstractCegarLoop]: Abstraction has 6728 states and 18181 transitions. [2021-07-09 16:57:39,885 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:39,885 INFO L276 IsEmpty]: Start isEmpty. Operand 6728 states and 18181 transitions. [2021-07-09 16:57:39,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:57:39,893 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:39,893 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:39,893 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-07-09 16:57:39,893 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:39,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:39,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1304127475, now seen corresponding path program 43 times [2021-07-09 16:57:39,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:39,894 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146794553] [2021-07-09 16:57:39,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:40,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:40,690 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:40,690 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146794553] [2021-07-09 16:57:40,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146794553] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:40,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:40,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:57:40,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963961497] [2021-07-09 16:57:40,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:57:40,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:40,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:57:40,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:57:40,691 INFO L87 Difference]: Start difference. First operand 6728 states and 18181 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:42,414 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-07-09 16:57:42,683 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-07-09 16:57:43,024 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-07-09 16:57:43,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:43,877 INFO L93 Difference]: Finished difference Result 7595 states and 20082 transitions. [2021-07-09 16:57:43,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 16:57:43,878 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:57:43,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:43,886 INFO L225 Difference]: With dead ends: 7595 [2021-07-09 16:57:43,887 INFO L226 Difference]: Without dead ends: 6850 [2021-07-09 16:57:43,887 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 2773.4ms TimeCoverageRelationStatistics Valid=546, Invalid=2760, Unknown=0, NotChecked=0, Total=3306 [2021-07-09 16:57:43,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6850 states. [2021-07-09 16:57:43,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6850 to 6304. [2021-07-09 16:57:43,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6304 states, 6303 states have (on average 2.7087101380295096) internal successors, (17073), 6303 states have internal predecessors, (17073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:43,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6304 states to 6304 states and 17073 transitions. [2021-07-09 16:57:43,983 INFO L78 Accepts]: Start accepts. Automaton has 6304 states and 17073 transitions. Word has length 119 [2021-07-09 16:57:43,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:43,983 INFO L482 AbstractCegarLoop]: Abstraction has 6304 states and 17073 transitions. [2021-07-09 16:57:43,983 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:43,983 INFO L276 IsEmpty]: Start isEmpty. Operand 6304 states and 17073 transitions. [2021-07-09 16:57:43,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:57:43,991 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:43,991 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:43,992 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-07-09 16:57:43,992 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:43,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:43,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1243473729, now seen corresponding path program 44 times [2021-07-09 16:57:43,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:43,992 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883544466] [2021-07-09 16:57:43,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:44,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:44,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:44,261 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883544466] [2021-07-09 16:57:44,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883544466] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:44,261 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:44,261 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:57:44,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199119909] [2021-07-09 16:57:44,261 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:57:44,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:44,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:57:44,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:57:44,261 INFO L87 Difference]: Start difference. First operand 6304 states and 17073 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:44,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:44,801 INFO L93 Difference]: Finished difference Result 9075 states and 24039 transitions. [2021-07-09 16:57:44,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:57:44,801 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:57:44,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:44,815 INFO L225 Difference]: With dead ends: 9075 [2021-07-09 16:57:44,815 INFO L226 Difference]: Without dead ends: 8747 [2021-07-09 16:57:44,815 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 458.6ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-07-09 16:57:44,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8747 states. [2021-07-09 16:57:44,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8747 to 6145. [2021-07-09 16:57:44,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6145 states, 6144 states have (on average 2.7021484375) internal successors, (16602), 6144 states have internal predecessors, (16602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:44,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6145 states to 6145 states and 16602 transitions. [2021-07-09 16:57:44,928 INFO L78 Accepts]: Start accepts. Automaton has 6145 states and 16602 transitions. Word has length 119 [2021-07-09 16:57:44,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:44,929 INFO L482 AbstractCegarLoop]: Abstraction has 6145 states and 16602 transitions. [2021-07-09 16:57:44,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:44,929 INFO L276 IsEmpty]: Start isEmpty. Operand 6145 states and 16602 transitions. [2021-07-09 16:57:44,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:57:44,936 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:44,936 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:44,936 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-07-09 16:57:44,936 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:44,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:44,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1513851583, now seen corresponding path program 45 times [2021-07-09 16:57:44,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:44,937 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937093179] [2021-07-09 16:57:44,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:45,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:45,246 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:45,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937093179] [2021-07-09 16:57:45,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937093179] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:45,247 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:45,247 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:57:45,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311707783] [2021-07-09 16:57:45,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:57:45,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:45,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:57:45,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:57:45,248 INFO L87 Difference]: Start difference. First operand 6145 states and 16602 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:45,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:45,750 INFO L93 Difference]: Finished difference Result 6898 states and 17902 transitions. [2021-07-09 16:57:45,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:57:45,751 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:57:45,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:45,761 INFO L225 Difference]: With dead ends: 6898 [2021-07-09 16:57:45,761 INFO L226 Difference]: Without dead ends: 6732 [2021-07-09 16:57:45,761 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 477.6ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-07-09 16:57:45,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6732 states. [2021-07-09 16:57:45,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6732 to 5530. [2021-07-09 16:57:45,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5530 states, 5529 states have (on average 2.672092602640622) internal successors, (14774), 5529 states have internal predecessors, (14774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:45,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5530 states to 5530 states and 14774 transitions. [2021-07-09 16:57:45,849 INFO L78 Accepts]: Start accepts. Automaton has 5530 states and 14774 transitions. Word has length 119 [2021-07-09 16:57:45,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:45,849 INFO L482 AbstractCegarLoop]: Abstraction has 5530 states and 14774 transitions. [2021-07-09 16:57:45,849 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:45,849 INFO L276 IsEmpty]: Start isEmpty. Operand 5530 states and 14774 transitions. [2021-07-09 16:57:45,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:57:45,855 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:45,855 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:45,855 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-07-09 16:57:45,855 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:45,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:45,856 INFO L82 PathProgramCache]: Analyzing trace with hash 371611779, now seen corresponding path program 46 times [2021-07-09 16:57:45,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:45,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621421204] [2021-07-09 16:57:45,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:46,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:46,503 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:46,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621421204] [2021-07-09 16:57:46,503 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621421204] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:46,503 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:46,503 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:57:46,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614135725] [2021-07-09 16:57:46,504 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:57:46,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:46,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:57:46,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:57:46,504 INFO L87 Difference]: Start difference. First operand 5530 states and 14774 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:47,501 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-09 16:57:47,881 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-07-09 16:57:48,074 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-07-09 16:57:49,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:49,042 INFO L93 Difference]: Finished difference Result 5750 states and 15189 transitions. [2021-07-09 16:57:49,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 16:57:49,043 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:57:49,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:49,049 INFO L225 Difference]: With dead ends: 5750 [2021-07-09 16:57:49,050 INFO L226 Difference]: Without dead ends: 5527 [2021-07-09 16:57:49,050 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 2213.8ms TimeCoverageRelationStatistics Valid=442, Invalid=2210, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 16:57:49,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5527 states. [2021-07-09 16:57:49,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5527 to 5525. [2021-07-09 16:57:49,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5525 states, 5524 states have (on average 2.6714337436640117) internal successors, (14757), 5524 states have internal predecessors, (14757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:49,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5525 states to 5525 states and 14757 transitions. [2021-07-09 16:57:49,125 INFO L78 Accepts]: Start accepts. Automaton has 5525 states and 14757 transitions. Word has length 119 [2021-07-09 16:57:49,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:49,125 INFO L482 AbstractCegarLoop]: Abstraction has 5525 states and 14757 transitions. [2021-07-09 16:57:49,125 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:49,125 INFO L276 IsEmpty]: Start isEmpty. Operand 5525 states and 14757 transitions. [2021-07-09 16:57:49,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:57:49,131 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:49,131 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:49,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-07-09 16:57:49,131 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:49,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:49,132 INFO L82 PathProgramCache]: Analyzing trace with hash 367193639, now seen corresponding path program 47 times [2021-07-09 16:57:49,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:49,132 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072455998] [2021-07-09 16:57:49,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:49,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:49,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:49,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072455998] [2021-07-09 16:57:49,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072455998] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:49,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:49,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:57:49,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118290786] [2021-07-09 16:57:49,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:57:49,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:49,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:57:49,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:57:49,838 INFO L87 Difference]: Start difference. First operand 5525 states and 14757 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:50,903 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-09 16:57:51,131 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-09 16:57:52,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:52,552 INFO L93 Difference]: Finished difference Result 6194 states and 16340 transitions. [2021-07-09 16:57:52,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 16:57:52,552 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:57:52,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:52,561 INFO L225 Difference]: With dead ends: 6194 [2021-07-09 16:57:52,561 INFO L226 Difference]: Without dead ends: 5988 [2021-07-09 16:57:52,562 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 2318.9ms TimeCoverageRelationStatistics Valid=447, Invalid=2309, Unknown=0, NotChecked=0, Total=2756 [2021-07-09 16:57:52,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2021-07-09 16:57:52,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 5813. [2021-07-09 16:57:52,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5813 states, 5812 states have (on average 2.6663799036476257) internal successors, (15497), 5812 states have internal predecessors, (15497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:52,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5813 states to 5813 states and 15497 transitions. [2021-07-09 16:57:52,651 INFO L78 Accepts]: Start accepts. Automaton has 5813 states and 15497 transitions. Word has length 119 [2021-07-09 16:57:52,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:52,651 INFO L482 AbstractCegarLoop]: Abstraction has 5813 states and 15497 transitions. [2021-07-09 16:57:52,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:52,651 INFO L276 IsEmpty]: Start isEmpty. Operand 5813 states and 15497 transitions. [2021-07-09 16:57:52,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:57:52,658 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:52,658 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:52,658 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-07-09 16:57:52,658 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:52,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:52,659 INFO L82 PathProgramCache]: Analyzing trace with hash -107512663, now seen corresponding path program 48 times [2021-07-09 16:57:52,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:52,659 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772776971] [2021-07-09 16:57:52,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:53,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:53,323 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:53,323 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772776971] [2021-07-09 16:57:53,323 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772776971] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:53,323 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:53,323 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:57:53,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690944248] [2021-07-09 16:57:53,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:57:53,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:53,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:57:53,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:57:53,324 INFO L87 Difference]: Start difference. First operand 5813 states and 15497 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:54,346 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-09 16:57:54,567 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-09 16:57:56,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:56,164 INFO L93 Difference]: Finished difference Result 6649 states and 17366 transitions. [2021-07-09 16:57:56,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-09 16:57:56,164 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:57:56,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:56,172 INFO L225 Difference]: With dead ends: 6649 [2021-07-09 16:57:56,172 INFO L226 Difference]: Without dead ends: 5660 [2021-07-09 16:57:56,173 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 2480.2ms TimeCoverageRelationStatistics Valid=514, Invalid=2678, Unknown=0, NotChecked=0, Total=3192 [2021-07-09 16:57:56,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5660 states. [2021-07-09 16:57:56,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5660 to 5477. [2021-07-09 16:57:56,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5477 states, 5476 states have (on average 2.672936449963477) internal successors, (14637), 5476 states have internal predecessors, (14637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:56,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5477 states to 5477 states and 14637 transitions. [2021-07-09 16:57:56,253 INFO L78 Accepts]: Start accepts. Automaton has 5477 states and 14637 transitions. Word has length 119 [2021-07-09 16:57:56,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:56,253 INFO L482 AbstractCegarLoop]: Abstraction has 5477 states and 14637 transitions. [2021-07-09 16:57:56,253 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:56,253 INFO L276 IsEmpty]: Start isEmpty. Operand 5477 states and 14637 transitions. [2021-07-09 16:57:56,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:57:56,259 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:56,259 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:56,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-07-09 16:57:56,260 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:56,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:56,260 INFO L82 PathProgramCache]: Analyzing trace with hash -551577325, now seen corresponding path program 49 times [2021-07-09 16:57:56,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:56,260 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88687524] [2021-07-09 16:57:56,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:56,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:56,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:56,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88687524] [2021-07-09 16:57:56,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88687524] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:57:56,968 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:57:56,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:57:56,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970273474] [2021-07-09 16:57:56,969 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:57:56,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:56,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:57:56,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:57:56,969 INFO L87 Difference]: Start difference. First operand 5477 states and 14637 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:57,967 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-09 16:57:58,187 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-09 16:57:58,487 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-07-09 16:57:59,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:59,521 INFO L93 Difference]: Finished difference Result 5681 states and 15028 transitions. [2021-07-09 16:57:59,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 16:57:59,521 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:57:59,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:59,529 INFO L225 Difference]: With dead ends: 5681 [2021-07-09 16:57:59,529 INFO L226 Difference]: Without dead ends: 5351 [2021-07-09 16:57:59,530 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 2330.2ms TimeCoverageRelationStatistics Valid=459, Invalid=2297, Unknown=0, NotChecked=0, Total=2756 [2021-07-09 16:57:59,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5351 states. [2021-07-09 16:57:59,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5351 to 5351. [2021-07-09 16:57:59,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 5350 states have (on average 2.690841121495327) internal successors, (14396), 5350 states have internal predecessors, (14396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:59,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 14396 transitions. [2021-07-09 16:57:59,621 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 14396 transitions. Word has length 119 [2021-07-09 16:57:59,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:59,621 INFO L482 AbstractCegarLoop]: Abstraction has 5351 states and 14396 transitions. [2021-07-09 16:57:59,621 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:59,621 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 14396 transitions. [2021-07-09 16:57:59,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:57:59,627 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:59,628 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:59,628 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-07-09 16:57:59,628 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:59,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:59,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1170997685, now seen corresponding path program 50 times [2021-07-09 16:57:59,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:59,628 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220608994] [2021-07-09 16:57:59,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:00,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:00,315 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:00,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220608994] [2021-07-09 16:58:00,315 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220608994] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:00,315 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:00,315 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:58:00,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231331349] [2021-07-09 16:58:00,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:58:00,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:00,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:58:00,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:58:00,315 INFO L87 Difference]: Start difference. First operand 5351 states and 14396 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:01,594 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-09 16:58:01,782 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-07-09 16:58:02,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:02,706 INFO L93 Difference]: Finished difference Result 5580 states and 14828 transitions. [2021-07-09 16:58:02,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 16:58:02,707 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:58:02,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:02,712 INFO L225 Difference]: With dead ends: 5580 [2021-07-09 16:58:02,713 INFO L226 Difference]: Without dead ends: 5327 [2021-07-09 16:58:02,713 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 2164.9ms TimeCoverageRelationStatistics Valid=445, Invalid=2207, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 16:58:02,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5327 states. [2021-07-09 16:58:02,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5327 to 5327. [2021-07-09 16:58:02,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.693954187007135) internal successors, (14348), 5326 states have internal predecessors, (14348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:02,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 14348 transitions. [2021-07-09 16:58:02,767 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 14348 transitions. Word has length 119 [2021-07-09 16:58:02,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:02,767 INFO L482 AbstractCegarLoop]: Abstraction has 5327 states and 14348 transitions. [2021-07-09 16:58:02,767 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:02,767 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 14348 transitions. [2021-07-09 16:58:02,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:58:02,772 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:02,772 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:02,772 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-07-09 16:58:02,772 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:02,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:02,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1017089893, now seen corresponding path program 51 times [2021-07-09 16:58:02,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:02,772 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377715166] [2021-07-09 16:58:02,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:03,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:03,413 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:03,413 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377715166] [2021-07-09 16:58:03,413 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377715166] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:03,413 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:03,413 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:58:03,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587397688] [2021-07-09 16:58:03,413 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:58:03,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:03,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:58:03,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:58:03,414 INFO L87 Difference]: Start difference. First operand 5327 states and 14348 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:04,708 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-09 16:58:04,899 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-07-09 16:58:05,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:05,847 INFO L93 Difference]: Finished difference Result 5650 states and 15048 transitions. [2021-07-09 16:58:05,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 16:58:05,847 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:58:05,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:05,853 INFO L225 Difference]: With dead ends: 5650 [2021-07-09 16:58:05,853 INFO L226 Difference]: Without dead ends: 5331 [2021-07-09 16:58:05,854 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 2116.4ms TimeCoverageRelationStatistics Valid=445, Invalid=2207, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 16:58:05,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5331 states. [2021-07-09 16:58:05,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5331 to 5225. [2021-07-09 16:58:05,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 2.6923813169984685) internal successors, (14065), 5224 states have internal predecessors, (14065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:05,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 14065 transitions. [2021-07-09 16:58:05,926 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 14065 transitions. Word has length 119 [2021-07-09 16:58:05,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:05,926 INFO L482 AbstractCegarLoop]: Abstraction has 5225 states and 14065 transitions. [2021-07-09 16:58:05,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:05,926 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 14065 transitions. [2021-07-09 16:58:05,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:58:05,934 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:05,934 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:05,934 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-07-09 16:58:05,934 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:05,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:05,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1525412117, now seen corresponding path program 52 times [2021-07-09 16:58:05,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:05,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962806393] [2021-07-09 16:58:05,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:06,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:06,197 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:06,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962806393] [2021-07-09 16:58:06,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962806393] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:06,197 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:06,197 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:58:06,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513837548] [2021-07-09 16:58:06,197 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:58:06,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:06,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:58:06,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:58:06,198 INFO L87 Difference]: Start difference. First operand 5225 states and 14065 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:06,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:06,747 INFO L93 Difference]: Finished difference Result 8331 states and 21865 transitions. [2021-07-09 16:58:06,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:58:06,750 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:58:06,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:06,762 INFO L225 Difference]: With dead ends: 8331 [2021-07-09 16:58:06,762 INFO L226 Difference]: Without dead ends: 8331 [2021-07-09 16:58:06,763 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 455.9ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-07-09 16:58:06,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8331 states. [2021-07-09 16:58:06,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8331 to 5532. [2021-07-09 16:58:06,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5532 states, 5531 states have (on average 2.6696799855360696) internal successors, (14766), 5531 states have internal predecessors, (14766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:06,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5532 states to 5532 states and 14766 transitions. [2021-07-09 16:58:06,866 INFO L78 Accepts]: Start accepts. Automaton has 5532 states and 14766 transitions. Word has length 119 [2021-07-09 16:58:06,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:06,866 INFO L482 AbstractCegarLoop]: Abstraction has 5532 states and 14766 transitions. [2021-07-09 16:58:06,866 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:06,866 INFO L276 IsEmpty]: Start isEmpty. Operand 5532 states and 14766 transitions. [2021-07-09 16:58:06,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:58:06,872 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:06,872 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:06,872 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-07-09 16:58:06,872 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:06,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:06,872 INFO L82 PathProgramCache]: Analyzing trace with hash -56928143, now seen corresponding path program 53 times [2021-07-09 16:58:06,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:06,873 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145434269] [2021-07-09 16:58:06,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:07,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:07,629 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:07,629 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145434269] [2021-07-09 16:58:07,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145434269] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:07,629 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:07,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:58:07,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407591556] [2021-07-09 16:58:07,629 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:58:07,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:07,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:58:07,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:58:07,630 INFO L87 Difference]: Start difference. First operand 5532 states and 14766 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:08,674 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-07-09 16:58:08,927 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-07-09 16:58:11,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:11,042 INFO L93 Difference]: Finished difference Result 9299 states and 24699 transitions. [2021-07-09 16:58:11,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 16:58:11,042 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:58:11,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:11,057 INFO L225 Difference]: With dead ends: 9299 [2021-07-09 16:58:11,058 INFO L226 Difference]: Without dead ends: 8983 [2021-07-09 16:58:11,058 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 2889.7ms TimeCoverageRelationStatistics Valid=571, Invalid=2969, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 16:58:11,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8983 states. [2021-07-09 16:58:11,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8983 to 6756. [2021-07-09 16:58:11,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6756 states, 6755 states have (on average 2.6963730569948186) internal successors, (18214), 6755 states have internal predecessors, (18214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:11,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6756 states to 6756 states and 18214 transitions. [2021-07-09 16:58:11,189 INFO L78 Accepts]: Start accepts. Automaton has 6756 states and 18214 transitions. Word has length 119 [2021-07-09 16:58:11,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:11,189 INFO L482 AbstractCegarLoop]: Abstraction has 6756 states and 18214 transitions. [2021-07-09 16:58:11,189 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:11,189 INFO L276 IsEmpty]: Start isEmpty. Operand 6756 states and 18214 transitions. [2021-07-09 16:58:11,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:58:11,198 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:11,198 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:11,198 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-07-09 16:58:11,198 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:11,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:11,198 INFO L82 PathProgramCache]: Analyzing trace with hash 946919055, now seen corresponding path program 54 times [2021-07-09 16:58:11,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:11,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019728787] [2021-07-09 16:58:11,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:11,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:11,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:11,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019728787] [2021-07-09 16:58:11,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019728787] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:11,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:11,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:58:11,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840422101] [2021-07-09 16:58:11,896 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:58:11,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:11,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:58:11,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:58:11,897 INFO L87 Difference]: Start difference. First operand 6756 states and 18214 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:12,902 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2021-07-09 16:58:13,147 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-07-09 16:58:15,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:15,141 INFO L93 Difference]: Finished difference Result 9632 states and 25615 transitions. [2021-07-09 16:58:15,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 16:58:15,141 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:58:15,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:15,154 INFO L225 Difference]: With dead ends: 9632 [2021-07-09 16:58:15,154 INFO L226 Difference]: Without dead ends: 8866 [2021-07-09 16:58:15,154 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 2784.9ms TimeCoverageRelationStatistics Valid=614, Invalid=2926, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 16:58:15,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8866 states. [2021-07-09 16:58:15,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8866 to 6876. [2021-07-09 16:58:15,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6876 states, 6875 states have (on average 2.680727272727273) internal successors, (18430), 6875 states have internal predecessors, (18430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:15,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6876 states to 6876 states and 18430 transitions. [2021-07-09 16:58:15,265 INFO L78 Accepts]: Start accepts. Automaton has 6876 states and 18430 transitions. Word has length 119 [2021-07-09 16:58:15,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:15,265 INFO L482 AbstractCegarLoop]: Abstraction has 6876 states and 18430 transitions. [2021-07-09 16:58:15,265 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:15,265 INFO L276 IsEmpty]: Start isEmpty. Operand 6876 states and 18430 transitions. [2021-07-09 16:58:15,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:58:15,273 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:15,273 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:15,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-07-09 16:58:15,273 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:15,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:15,273 INFO L82 PathProgramCache]: Analyzing trace with hash -2139622877, now seen corresponding path program 55 times [2021-07-09 16:58:15,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:15,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405068188] [2021-07-09 16:58:15,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:15,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:15,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:15,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405068188] [2021-07-09 16:58:15,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405068188] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:15,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:15,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:58:15,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299403403] [2021-07-09 16:58:15,974 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:58:15,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:15,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:58:15,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:58:15,974 INFO L87 Difference]: Start difference. First operand 6876 states and 18430 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:17,021 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2021-07-09 16:58:17,275 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-07-09 16:58:18,485 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-07-09 16:58:19,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:19,550 INFO L93 Difference]: Finished difference Result 9057 states and 23992 transitions. [2021-07-09 16:58:19,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-09 16:58:19,550 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:58:19,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:19,563 INFO L225 Difference]: With dead ends: 9057 [2021-07-09 16:58:19,563 INFO L226 Difference]: Without dead ends: 8218 [2021-07-09 16:58:19,564 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 3096.9ms TimeCoverageRelationStatistics Valid=635, Invalid=3147, Unknown=0, NotChecked=0, Total=3782 [2021-07-09 16:58:19,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8218 states. [2021-07-09 16:58:19,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8218 to 6228. [2021-07-09 16:58:19,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6228 states, 6227 states have (on average 2.6738397302071624) internal successors, (16650), 6227 states have internal predecessors, (16650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:19,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6228 states to 6228 states and 16650 transitions. [2021-07-09 16:58:19,694 INFO L78 Accepts]: Start accepts. Automaton has 6228 states and 16650 transitions. Word has length 119 [2021-07-09 16:58:19,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:19,694 INFO L482 AbstractCegarLoop]: Abstraction has 6228 states and 16650 transitions. [2021-07-09 16:58:19,694 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:19,694 INFO L276 IsEmpty]: Start isEmpty. Operand 6228 states and 16650 transitions. [2021-07-09 16:58:19,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:58:19,702 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:19,702 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:19,702 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-07-09 16:58:19,702 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:19,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:19,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1550242815, now seen corresponding path program 56 times [2021-07-09 16:58:19,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:19,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096292891] [2021-07-09 16:58:19,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:20,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:20,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:20,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096292891] [2021-07-09 16:58:20,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096292891] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:20,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:20,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:58:20,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804716887] [2021-07-09 16:58:20,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:58:20,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:20,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:58:20,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:58:20,387 INFO L87 Difference]: Start difference. First operand 6228 states and 16650 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:21,408 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-07-09 16:58:21,668 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-07-09 16:58:22,118 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-07-09 16:58:22,510 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-07-09 16:58:23,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:23,792 INFO L93 Difference]: Finished difference Result 7720 states and 20387 transitions. [2021-07-09 16:58:23,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 16:58:23,792 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:58:23,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:23,803 INFO L225 Difference]: With dead ends: 7720 [2021-07-09 16:58:23,803 INFO L226 Difference]: Without dead ends: 7363 [2021-07-09 16:58:23,803 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 2847.1ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 16:58:23,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7363 states. [2021-07-09 16:58:23,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7363 to 6211. [2021-07-09 16:58:23,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6211 states, 6210 states have (on average 2.6743961352657006) internal successors, (16608), 6210 states have internal predecessors, (16608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:23,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6211 states to 6211 states and 16608 transitions. [2021-07-09 16:58:23,907 INFO L78 Accepts]: Start accepts. Automaton has 6211 states and 16608 transitions. Word has length 119 [2021-07-09 16:58:23,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:23,907 INFO L482 AbstractCegarLoop]: Abstraction has 6211 states and 16608 transitions. [2021-07-09 16:58:23,907 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:23,907 INFO L276 IsEmpty]: Start isEmpty. Operand 6211 states and 16608 transitions. [2021-07-09 16:58:23,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:58:23,915 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:23,915 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:23,915 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-07-09 16:58:23,915 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:23,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:23,916 INFO L82 PathProgramCache]: Analyzing trace with hash -2040409167, now seen corresponding path program 57 times [2021-07-09 16:58:23,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:23,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138495705] [2021-07-09 16:58:23,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:24,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:24,605 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:24,605 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138495705] [2021-07-09 16:58:24,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138495705] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:24,605 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:24,605 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:58:24,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889529883] [2021-07-09 16:58:24,605 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:58:24,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:24,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:58:24,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:58:24,606 INFO L87 Difference]: Start difference. First operand 6211 states and 16608 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:25,679 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-07-09 16:58:26,089 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-07-09 16:58:26,283 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-07-09 16:58:27,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:27,865 INFO L93 Difference]: Finished difference Result 7427 states and 19578 transitions. [2021-07-09 16:58:27,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 16:58:27,865 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:58:27,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:27,875 INFO L225 Difference]: With dead ends: 7427 [2021-07-09 16:58:27,876 INFO L226 Difference]: Without dead ends: 6985 [2021-07-09 16:58:27,876 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2725.4ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-07-09 16:58:27,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6985 states. [2021-07-09 16:58:27,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6985 to 6170. [2021-07-09 16:58:27,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6169 states have (on average 2.6743394391311397) internal successors, (16498), 6169 states have internal predecessors, (16498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:27,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16498 transitions. [2021-07-09 16:58:27,970 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16498 transitions. Word has length 119 [2021-07-09 16:58:27,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:27,970 INFO L482 AbstractCegarLoop]: Abstraction has 6170 states and 16498 transitions. [2021-07-09 16:58:27,970 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:27,970 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16498 transitions. [2021-07-09 16:58:27,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:58:27,978 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:27,978 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:27,978 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-07-09 16:58:27,978 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:27,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:27,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1821657651, now seen corresponding path program 58 times [2021-07-09 16:58:27,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:27,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698956483] [2021-07-09 16:58:27,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:28,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:28,684 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:28,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698956483] [2021-07-09 16:58:28,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698956483] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:28,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:28,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:58:28,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005835087] [2021-07-09 16:58:28,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:58:28,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:28,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:58:28,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:58:28,685 INFO L87 Difference]: Start difference. First operand 6170 states and 16498 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:29,924 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-07-09 16:58:31,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:31,569 INFO L93 Difference]: Finished difference Result 7822 states and 20732 transitions. [2021-07-09 16:58:31,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 16:58:31,569 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:58:31,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:31,578 INFO L225 Difference]: With dead ends: 7822 [2021-07-09 16:58:31,579 INFO L226 Difference]: Without dead ends: 7602 [2021-07-09 16:58:31,579 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 2447.7ms TimeCoverageRelationStatistics Valid=483, Invalid=2487, Unknown=0, NotChecked=0, Total=2970 [2021-07-09 16:58:31,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7602 states. [2021-07-09 16:58:31,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7602 to 6506. [2021-07-09 16:58:31,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6506 states, 6505 states have (on average 2.664719446579554) internal successors, (17334), 6505 states have internal predecessors, (17334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:31,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6506 states to 6506 states and 17334 transitions. [2021-07-09 16:58:31,673 INFO L78 Accepts]: Start accepts. Automaton has 6506 states and 17334 transitions. Word has length 119 [2021-07-09 16:58:31,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:31,673 INFO L482 AbstractCegarLoop]: Abstraction has 6506 states and 17334 transitions. [2021-07-09 16:58:31,673 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:31,673 INFO L276 IsEmpty]: Start isEmpty. Operand 6506 states and 17334 transitions. [2021-07-09 16:58:31,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:58:31,681 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:31,681 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:31,681 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-07-09 16:58:31,681 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:31,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:31,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1469462447, now seen corresponding path program 59 times [2021-07-09 16:58:31,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:31,682 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324794065] [2021-07-09 16:58:31,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:32,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:32,356 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:32,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324794065] [2021-07-09 16:58:32,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324794065] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:32,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:32,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:58:32,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058713523] [2021-07-09 16:58:32,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:58:32,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:32,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:58:32,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:58:32,357 INFO L87 Difference]: Start difference. First operand 6506 states and 17334 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:33,573 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-09 16:58:35,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:35,149 INFO L93 Difference]: Finished difference Result 8026 states and 21186 transitions. [2021-07-09 16:58:35,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 16:58:35,149 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:58:35,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:35,160 INFO L225 Difference]: With dead ends: 8026 [2021-07-09 16:58:35,161 INFO L226 Difference]: Without dead ends: 7550 [2021-07-09 16:58:35,161 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 2422.0ms TimeCoverageRelationStatistics Valid=514, Invalid=2566, Unknown=0, NotChecked=0, Total=3080 [2021-07-09 16:58:35,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7550 states. [2021-07-09 16:58:35,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7550 to 6578. [2021-07-09 16:58:35,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6578 states, 6577 states have (on average 2.6537935228827734) internal successors, (17454), 6577 states have internal predecessors, (17454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:35,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6578 states to 6578 states and 17454 transitions. [2021-07-09 16:58:35,267 INFO L78 Accepts]: Start accepts. Automaton has 6578 states and 17454 transitions. Word has length 119 [2021-07-09 16:58:35,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:35,267 INFO L482 AbstractCegarLoop]: Abstraction has 6578 states and 17454 transitions. [2021-07-09 16:58:35,268 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:35,268 INFO L276 IsEmpty]: Start isEmpty. Operand 6578 states and 17454 transitions. [2021-07-09 16:58:35,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:58:35,276 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:35,276 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:35,276 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-07-09 16:58:35,276 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:35,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:35,277 INFO L82 PathProgramCache]: Analyzing trace with hash -261037083, now seen corresponding path program 60 times [2021-07-09 16:58:35,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:35,277 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455114280] [2021-07-09 16:58:35,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:35,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:35,957 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:35,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455114280] [2021-07-09 16:58:35,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455114280] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:35,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:35,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:58:35,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588830820] [2021-07-09 16:58:35,958 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:58:35,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:35,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:58:35,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:58:35,959 INFO L87 Difference]: Start difference. First operand 6578 states and 17454 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:36,792 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-07-09 16:58:37,208 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-09 16:58:38,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:38,862 INFO L93 Difference]: Finished difference Result 7683 states and 20263 transitions. [2021-07-09 16:58:38,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-09 16:58:38,862 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:58:38,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:38,873 INFO L225 Difference]: With dead ends: 7683 [2021-07-09 16:58:38,874 INFO L226 Difference]: Without dead ends: 7142 [2021-07-09 16:58:38,874 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 2587.5ms TimeCoverageRelationStatistics Valid=516, Invalid=2676, Unknown=0, NotChecked=0, Total=3192 [2021-07-09 16:58:38,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7142 states. [2021-07-09 16:58:38,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7142 to 6170. [2021-07-09 16:58:38,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6169 states have (on average 2.6685038093694278) internal successors, (16462), 6169 states have internal predecessors, (16462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:38,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16462 transitions. [2021-07-09 16:58:38,976 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16462 transitions. Word has length 119 [2021-07-09 16:58:38,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:38,976 INFO L482 AbstractCegarLoop]: Abstraction has 6170 states and 16462 transitions. [2021-07-09 16:58:38,976 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:38,976 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16462 transitions. [2021-07-09 16:58:38,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:58:38,984 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:38,984 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:38,984 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-07-09 16:58:38,984 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:38,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:38,984 INFO L82 PathProgramCache]: Analyzing trace with hash -866138687, now seen corresponding path program 61 times [2021-07-09 16:58:38,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:38,985 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251473301] [2021-07-09 16:58:38,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:39,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:39,706 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:39,706 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251473301] [2021-07-09 16:58:39,706 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251473301] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:39,706 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:39,706 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:58:39,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278418295] [2021-07-09 16:58:39,707 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:58:39,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:39,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:58:39,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:58:39,707 INFO L87 Difference]: Start difference. First operand 6170 states and 16462 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:40,971 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-07-09 16:58:41,476 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-07-09 16:58:42,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:42,602 INFO L93 Difference]: Finished difference Result 7191 states and 19093 transitions. [2021-07-09 16:58:42,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 16:58:42,602 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:58:42,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:42,612 INFO L225 Difference]: With dead ends: 7191 [2021-07-09 16:58:42,612 INFO L226 Difference]: Without dead ends: 6930 [2021-07-09 16:58:42,613 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 2546.8ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-07-09 16:58:42,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6930 states. [2021-07-09 16:58:42,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6930 to 6134. [2021-07-09 16:58:42,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6134 states, 6133 states have (on average 2.672427849339638) internal successors, (16390), 6133 states have internal predecessors, (16390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:42,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6134 states to 6134 states and 16390 transitions. [2021-07-09 16:58:42,724 INFO L78 Accepts]: Start accepts. Automaton has 6134 states and 16390 transitions. Word has length 119 [2021-07-09 16:58:42,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:42,724 INFO L482 AbstractCegarLoop]: Abstraction has 6134 states and 16390 transitions. [2021-07-09 16:58:42,725 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:42,725 INFO L276 IsEmpty]: Start isEmpty. Operand 6134 states and 16390 transitions. [2021-07-09 16:58:42,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:58:42,732 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:42,732 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:42,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-07-09 16:58:42,732 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:42,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:42,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1926571087, now seen corresponding path program 62 times [2021-07-09 16:58:42,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:42,733 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178052985] [2021-07-09 16:58:42,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:43,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:43,379 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:43,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178052985] [2021-07-09 16:58:43,379 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178052985] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:43,380 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:43,380 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:58:43,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118937269] [2021-07-09 16:58:43,380 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:58:43,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:43,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:58:43,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:58:43,380 INFO L87 Difference]: Start difference. First operand 6134 states and 16390 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:46,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:46,275 INFO L93 Difference]: Finished difference Result 8922 states and 23592 transitions. [2021-07-09 16:58:46,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 16:58:46,276 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:58:46,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:46,287 INFO L225 Difference]: With dead ends: 8922 [2021-07-09 16:58:46,287 INFO L226 Difference]: Without dead ends: 8702 [2021-07-09 16:58:46,287 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 2378.7ms TimeCoverageRelationStatistics Valid=473, Invalid=2497, Unknown=0, NotChecked=0, Total=2970 [2021-07-09 16:58:46,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8702 states. [2021-07-09 16:58:46,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8702 to 6434. [2021-07-09 16:58:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6434 states, 6433 states have (on average 2.6702937976060936) internal successors, (17178), 6433 states have internal predecessors, (17178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:46,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6434 states to 6434 states and 17178 transitions. [2021-07-09 16:58:46,391 INFO L78 Accepts]: Start accepts. Automaton has 6434 states and 17178 transitions. Word has length 119 [2021-07-09 16:58:46,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:46,391 INFO L482 AbstractCegarLoop]: Abstraction has 6434 states and 17178 transitions. [2021-07-09 16:58:46,391 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:46,391 INFO L276 IsEmpty]: Start isEmpty. Operand 6434 states and 17178 transitions. [2021-07-09 16:58:46,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:58:46,399 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:46,399 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:46,399 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-07-09 16:58:46,399 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:46,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:46,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1364549011, now seen corresponding path program 63 times [2021-07-09 16:58:46,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:46,399 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867207137] [2021-07-09 16:58:46,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:47,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:47,099 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:47,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867207137] [2021-07-09 16:58:47,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867207137] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:47,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:47,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:58:47,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596726561] [2021-07-09 16:58:47,100 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:58:47,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:47,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:58:47,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:58:47,100 INFO L87 Difference]: Start difference. First operand 6434 states and 17178 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:48,186 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-07-09 16:58:50,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:50,002 INFO L93 Difference]: Finished difference Result 9126 states and 24046 transitions. [2021-07-09 16:58:50,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 16:58:50,002 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:58:50,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:50,015 INFO L225 Difference]: With dead ends: 9126 [2021-07-09 16:58:50,015 INFO L226 Difference]: Without dead ends: 8650 [2021-07-09 16:58:50,016 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 2470.4ms TimeCoverageRelationStatistics Valid=501, Invalid=2579, Unknown=0, NotChecked=0, Total=3080 [2021-07-09 16:58:50,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8650 states. [2021-07-09 16:58:50,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8650 to 6506. [2021-07-09 16:58:50,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6506 states, 6505 states have (on average 2.659185242121445) internal successors, (17298), 6505 states have internal predecessors, (17298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:50,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6506 states to 6506 states and 17298 transitions. [2021-07-09 16:58:50,127 INFO L78 Accepts]: Start accepts. Automaton has 6506 states and 17298 transitions. Word has length 119 [2021-07-09 16:58:50,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:50,127 INFO L482 AbstractCegarLoop]: Abstraction has 6506 states and 17298 transitions. [2021-07-09 16:58:50,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:50,127 INFO L276 IsEmpty]: Start isEmpty. Operand 6506 states and 17298 transitions. [2021-07-09 16:58:50,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:58:50,136 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:50,136 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:50,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-07-09 16:58:50,136 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:50,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:50,136 INFO L82 PathProgramCache]: Analyzing trace with hash -156123647, now seen corresponding path program 64 times [2021-07-09 16:58:50,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:50,136 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945320751] [2021-07-09 16:58:50,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:50,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:50,853 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:50,853 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945320751] [2021-07-09 16:58:50,853 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945320751] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:50,853 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:50,853 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:58:50,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334609063] [2021-07-09 16:58:50,854 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:58:50,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:50,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:58:50,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:58:50,854 INFO L87 Difference]: Start difference. First operand 6506 states and 17298 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:53,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:53,848 INFO L93 Difference]: Finished difference Result 8783 states and 23123 transitions. [2021-07-09 16:58:53,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-09 16:58:53,849 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:58:53,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:53,861 INFO L225 Difference]: With dead ends: 8783 [2021-07-09 16:58:53,861 INFO L226 Difference]: Without dead ends: 8242 [2021-07-09 16:58:53,862 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2599.8ms TimeCoverageRelationStatistics Valid=505, Invalid=2687, Unknown=0, NotChecked=0, Total=3192 [2021-07-09 16:58:53,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8242 states. [2021-07-09 16:58:53,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8242 to 6098. [2021-07-09 16:58:53,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6098 states, 6097 states have (on average 2.650811874692472) internal successors, (16162), 6097 states have internal predecessors, (16162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:53,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6098 states to 6098 states and 16162 transitions. [2021-07-09 16:58:53,968 INFO L78 Accepts]: Start accepts. Automaton has 6098 states and 16162 transitions. Word has length 119 [2021-07-09 16:58:53,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:53,968 INFO L482 AbstractCegarLoop]: Abstraction has 6098 states and 16162 transitions. [2021-07-09 16:58:53,968 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:53,969 INFO L276 IsEmpty]: Start isEmpty. Operand 6098 states and 16162 transitions. [2021-07-09 16:58:53,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:58:53,976 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:53,976 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:53,976 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-07-09 16:58:53,976 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:53,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:53,976 INFO L82 PathProgramCache]: Analyzing trace with hash 500807837, now seen corresponding path program 65 times [2021-07-09 16:58:53,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:53,976 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686374351] [2021-07-09 16:58:53,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:54,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:54,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:54,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686374351] [2021-07-09 16:58:54,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686374351] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:54,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:54,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:58:54,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140008627] [2021-07-09 16:58:54,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:58:54,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:54,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:58:54,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:58:54,663 INFO L87 Difference]: Start difference. First operand 6098 states and 16162 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:57,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:57,767 INFO L93 Difference]: Finished difference Result 8619 states and 22515 transitions. [2021-07-09 16:58:57,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 16:58:57,767 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:58:57,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:57,777 INFO L225 Difference]: With dead ends: 8619 [2021-07-09 16:58:57,777 INFO L226 Difference]: Without dead ends: 8189 [2021-07-09 16:58:57,777 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 2572.5ms TimeCoverageRelationStatistics Valid=516, Invalid=2790, Unknown=0, NotChecked=0, Total=3306 [2021-07-09 16:58:57,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8189 states. [2021-07-09 16:58:57,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8189 to 5918. [2021-07-09 16:58:57,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5918 states, 5917 states have (on average 2.670610106472875) internal successors, (15802), 5917 states have internal predecessors, (15802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:57,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5918 states to 5918 states and 15802 transitions. [2021-07-09 16:58:57,866 INFO L78 Accepts]: Start accepts. Automaton has 5918 states and 15802 transitions. Word has length 119 [2021-07-09 16:58:57,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:57,866 INFO L482 AbstractCegarLoop]: Abstraction has 5918 states and 15802 transitions. [2021-07-09 16:58:57,866 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:57,867 INFO L276 IsEmpty]: Start isEmpty. Operand 5918 states and 15802 transitions. [2021-07-09 16:58:57,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:58:57,873 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:57,873 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:57,874 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-07-09 16:58:57,874 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:57,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:57,874 INFO L82 PathProgramCache]: Analyzing trace with hash -2115126477, now seen corresponding path program 66 times [2021-07-09 16:58:57,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:57,874 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537528122] [2021-07-09 16:58:57,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:58,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:58,536 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:58,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537528122] [2021-07-09 16:58:58,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537528122] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:58,536 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:58,536 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:58:58,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363436350] [2021-07-09 16:58:58,536 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:58:58,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:58,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:58:58,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:58:58,537 INFO L87 Difference]: Start difference. First operand 5918 states and 15802 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:59,621 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-07-09 16:59:00,041 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-07-09 16:59:00,182 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-07-09 16:59:01,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:01,388 INFO L93 Difference]: Finished difference Result 7054 states and 18703 transitions. [2021-07-09 16:59:01,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 16:59:01,388 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:59:01,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:01,397 INFO L225 Difference]: With dead ends: 7054 [2021-07-09 16:59:01,397 INFO L226 Difference]: Without dead ends: 6829 [2021-07-09 16:59:01,397 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 2474.2ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-07-09 16:59:01,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6829 states. [2021-07-09 16:59:01,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6829 to 5923. [2021-07-09 16:59:01,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5923 states, 5922 states have (on average 2.669706180344478) internal successors, (15810), 5922 states have internal predecessors, (15810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:01,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5923 states to 5923 states and 15810 transitions. [2021-07-09 16:59:01,481 INFO L78 Accepts]: Start accepts. Automaton has 5923 states and 15810 transitions. Word has length 119 [2021-07-09 16:59:01,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:01,481 INFO L482 AbstractCegarLoop]: Abstraction has 5923 states and 15810 transitions. [2021-07-09 16:59:01,481 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:01,482 INFO L276 IsEmpty]: Start isEmpty. Operand 5923 states and 15810 transitions. [2021-07-09 16:59:01,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:59:01,488 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:01,488 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:01,488 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-07-09 16:59:01,488 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:01,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:01,488 INFO L82 PathProgramCache]: Analyzing trace with hash 35949327, now seen corresponding path program 67 times [2021-07-09 16:59:01,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:01,489 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082019747] [2021-07-09 16:59:01,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:02,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:02,156 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:02,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082019747] [2021-07-09 16:59:02,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082019747] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:02,156 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:02,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:59:02,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754894113] [2021-07-09 16:59:02,156 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:59:02,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:02,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:59:02,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:59:02,157 INFO L87 Difference]: Start difference. First operand 5923 states and 15810 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:03,672 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-07-09 16:59:05,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:05,238 INFO L93 Difference]: Finished difference Result 7377 states and 19391 transitions. [2021-07-09 16:59:05,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 16:59:05,238 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:59:05,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:05,249 INFO L225 Difference]: With dead ends: 7377 [2021-07-09 16:59:05,249 INFO L226 Difference]: Without dead ends: 7086 [2021-07-09 16:59:05,250 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 2628.4ms TimeCoverageRelationStatistics Valid=555, Invalid=2751, Unknown=0, NotChecked=0, Total=3306 [2021-07-09 16:59:05,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7086 states. [2021-07-09 16:59:05,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7086 to 5882. [2021-07-09 16:59:05,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5882 states, 5881 states have (on average 2.6747151844924333) internal successors, (15730), 5881 states have internal predecessors, (15730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:05,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5882 states to 5882 states and 15730 transitions. [2021-07-09 16:59:05,342 INFO L78 Accepts]: Start accepts. Automaton has 5882 states and 15730 transitions. Word has length 119 [2021-07-09 16:59:05,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:05,342 INFO L482 AbstractCegarLoop]: Abstraction has 5882 states and 15730 transitions. [2021-07-09 16:59:05,342 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:05,342 INFO L276 IsEmpty]: Start isEmpty. Operand 5882 states and 15730 transitions. [2021-07-09 16:59:05,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:59:05,348 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:05,349 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:05,349 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-07-09 16:59:05,349 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:05,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:05,349 INFO L82 PathProgramCache]: Analyzing trace with hash -2104324993, now seen corresponding path program 68 times [2021-07-09 16:59:05,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:05,349 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608413551] [2021-07-09 16:59:05,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:06,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:06,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:06,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608413551] [2021-07-09 16:59:06,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608413551] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:06,077 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:06,077 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:59:06,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767609839] [2021-07-09 16:59:06,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:59:06,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:06,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:59:06,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:59:06,077 INFO L87 Difference]: Start difference. First operand 5882 states and 15730 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:07,458 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-07-09 16:59:07,680 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-07-09 16:59:09,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:09,276 INFO L93 Difference]: Finished difference Result 6947 states and 18266 transitions. [2021-07-09 16:59:09,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 16:59:09,276 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:59:09,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:09,285 INFO L225 Difference]: With dead ends: 6947 [2021-07-09 16:59:09,285 INFO L226 Difference]: Without dead ends: 6613 [2021-07-09 16:59:09,286 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2751.5ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-07-09 16:59:09,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6613 states. [2021-07-09 16:59:09,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6613 to 5916. [2021-07-09 16:59:09,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5916 states, 5915 states have (on average 2.673541842772612) internal successors, (15814), 5915 states have internal predecessors, (15814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:09,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5916 states to 5916 states and 15814 transitions. [2021-07-09 16:59:09,374 INFO L78 Accepts]: Start accepts. Automaton has 5916 states and 15814 transitions. Word has length 119 [2021-07-09 16:59:09,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:09,375 INFO L482 AbstractCegarLoop]: Abstraction has 5916 states and 15814 transitions. [2021-07-09 16:59:09,375 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:09,375 INFO L276 IsEmpty]: Start isEmpty. Operand 5916 states and 15814 transitions. [2021-07-09 16:59:09,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:59:09,381 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:09,381 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:09,381 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-07-09 16:59:09,382 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:09,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:09,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1584964223, now seen corresponding path program 69 times [2021-07-09 16:59:09,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:09,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086223001] [2021-07-09 16:59:09,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:09,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:10,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:10,076 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:10,076 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086223001] [2021-07-09 16:59:10,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086223001] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:10,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:10,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:59:10,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85400724] [2021-07-09 16:59:10,076 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:59:10,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:10,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:59:10,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:59:10,077 INFO L87 Difference]: Start difference. First operand 5916 states and 15814 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:11,505 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-09 16:59:11,690 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-07-09 16:59:12,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:12,882 INFO L93 Difference]: Finished difference Result 6631 states and 17568 transitions. [2021-07-09 16:59:12,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 16:59:12,883 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:59:12,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:12,891 INFO L225 Difference]: With dead ends: 6631 [2021-07-09 16:59:12,891 INFO L226 Difference]: Without dead ends: 6406 [2021-07-09 16:59:12,891 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 2438.7ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-07-09 16:59:12,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6406 states. [2021-07-09 16:59:12,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6406 to 5919. [2021-07-09 16:59:12,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5919 states, 5918 states have (on average 2.6726934775261912) internal successors, (15817), 5918 states have internal predecessors, (15817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:12,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5919 states to 5919 states and 15817 transitions. [2021-07-09 16:59:12,971 INFO L78 Accepts]: Start accepts. Automaton has 5919 states and 15817 transitions. Word has length 119 [2021-07-09 16:59:12,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:12,971 INFO L482 AbstractCegarLoop]: Abstraction has 5919 states and 15817 transitions. [2021-07-09 16:59:12,971 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:12,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5919 states and 15817 transitions. [2021-07-09 16:59:12,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:59:12,978 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:12,978 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:12,978 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-07-09 16:59:12,978 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:12,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:12,978 INFO L82 PathProgramCache]: Analyzing trace with hash 394887581, now seen corresponding path program 70 times [2021-07-09 16:59:12,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:12,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642822970] [2021-07-09 16:59:12,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:13,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:13,711 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:13,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642822970] [2021-07-09 16:59:13,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642822970] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:13,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:13,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:59:13,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517088114] [2021-07-09 16:59:13,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:59:13,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:13,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:59:13,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:59:13,712 INFO L87 Difference]: Start difference. First operand 5919 states and 15817 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:15,169 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-09 16:59:16,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:16,825 INFO L93 Difference]: Finished difference Result 6929 states and 18192 transitions. [2021-07-09 16:59:16,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-09 16:59:16,825 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:59:16,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:16,835 INFO L225 Difference]: With dead ends: 6929 [2021-07-09 16:59:16,835 INFO L226 Difference]: Without dead ends: 6553 [2021-07-09 16:59:16,836 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 2588.7ms TimeCoverageRelationStatistics Valid=532, Invalid=2660, Unknown=0, NotChecked=0, Total=3192 [2021-07-09 16:59:16,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6553 states. [2021-07-09 16:59:16,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6553 to 5789. [2021-07-09 16:59:16,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5789 states, 5788 states have (on average 2.6878023496890115) internal successors, (15557), 5788 states have internal predecessors, (15557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:16,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5789 states to 5789 states and 15557 transitions. [2021-07-09 16:59:16,928 INFO L78 Accepts]: Start accepts. Automaton has 5789 states and 15557 transitions. Word has length 119 [2021-07-09 16:59:16,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:16,928 INFO L482 AbstractCegarLoop]: Abstraction has 5789 states and 15557 transitions. [2021-07-09 16:59:16,928 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:16,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5789 states and 15557 transitions. [2021-07-09 16:59:16,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:59:16,935 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:16,935 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:16,935 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-07-09 16:59:16,935 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:16,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:16,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1175667523, now seen corresponding path program 71 times [2021-07-09 16:59:16,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:16,935 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665481511] [2021-07-09 16:59:16,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:17,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:17,186 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:17,186 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665481511] [2021-07-09 16:59:17,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665481511] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:17,186 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:17,187 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:59:17,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214855140] [2021-07-09 16:59:17,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:59:17,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:17,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:59:17,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:59:17,187 INFO L87 Difference]: Start difference. First operand 5789 states and 15557 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:17,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:17,714 INFO L93 Difference]: Finished difference Result 8727 states and 22397 transitions. [2021-07-09 16:59:17,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:59:17,714 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:59:17,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:17,726 INFO L225 Difference]: With dead ends: 8727 [2021-07-09 16:59:17,726 INFO L226 Difference]: Without dead ends: 8561 [2021-07-09 16:59:17,726 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 446.7ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-07-09 16:59:17,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8561 states. [2021-07-09 16:59:17,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8561 to 5191. [2021-07-09 16:59:17,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 2.652986512524085) internal successors, (13769), 5190 states have internal predecessors, (13769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:17,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 13769 transitions. [2021-07-09 16:59:17,822 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 13769 transitions. Word has length 119 [2021-07-09 16:59:17,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:17,822 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 13769 transitions. [2021-07-09 16:59:17,822 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:17,822 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 13769 transitions. [2021-07-09 16:59:17,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:59:17,828 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:17,828 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:17,828 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-07-09 16:59:17,828 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:17,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:17,828 INFO L82 PathProgramCache]: Analyzing trace with hash 33427719, now seen corresponding path program 72 times [2021-07-09 16:59:17,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:17,828 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901052602] [2021-07-09 16:59:17,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:18,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:18,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:18,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901052602] [2021-07-09 16:59:18,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901052602] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:18,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:18,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:59:18,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141163345] [2021-07-09 16:59:18,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:59:18,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:18,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:59:18,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:59:18,567 INFO L87 Difference]: Start difference. First operand 5191 states and 13769 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:19,692 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2021-07-09 16:59:20,104 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-09 16:59:20,315 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-07-09 16:59:21,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:21,267 INFO L93 Difference]: Finished difference Result 5725 states and 15064 transitions. [2021-07-09 16:59:21,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 16:59:21,267 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:59:21,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:21,274 INFO L225 Difference]: With dead ends: 5725 [2021-07-09 16:59:21,274 INFO L226 Difference]: Without dead ends: 5502 [2021-07-09 16:59:21,274 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 2327.5ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 16:59:21,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5502 states. [2021-07-09 16:59:21,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5502 to 5186. [2021-07-09 16:59:21,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5186 states, 5185 states have (on average 2.6522661523625843) internal successors, (13752), 5185 states have internal predecessors, (13752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:21,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5186 states to 5186 states and 13752 transitions. [2021-07-09 16:59:21,337 INFO L78 Accepts]: Start accepts. Automaton has 5186 states and 13752 transitions. Word has length 119 [2021-07-09 16:59:21,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:21,337 INFO L482 AbstractCegarLoop]: Abstraction has 5186 states and 13752 transitions. [2021-07-09 16:59:21,337 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:21,337 INFO L276 IsEmpty]: Start isEmpty. Operand 5186 states and 13752 transitions. [2021-07-09 16:59:21,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:59:21,343 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:21,343 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:21,343 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-07-09 16:59:21,343 INFO L430 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:21,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:21,343 INFO L82 PathProgramCache]: Analyzing trace with hash 29009579, now seen corresponding path program 73 times [2021-07-09 16:59:21,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:21,343 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699739267] [2021-07-09 16:59:21,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:22,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:22,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:22,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699739267] [2021-07-09 16:59:22,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699739267] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:22,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:22,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:59:22,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260263230] [2021-07-09 16:59:22,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:59:22,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:22,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:59:22,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:59:22,114 INFO L87 Difference]: Start difference. First operand 5186 states and 13752 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:23,113 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-09 16:59:23,371 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-09 16:59:24,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:24,699 INFO L93 Difference]: Finished difference Result 6175 states and 16223 transitions. [2021-07-09 16:59:24,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 16:59:24,700 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:59:24,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:24,708 INFO L225 Difference]: With dead ends: 6175 [2021-07-09 16:59:24,708 INFO L226 Difference]: Without dead ends: 5969 [2021-07-09 16:59:24,708 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 2317.7ms TimeCoverageRelationStatistics Valid=448, Invalid=2308, Unknown=0, NotChecked=0, Total=2756 [2021-07-09 16:59:24,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5969 states. [2021-07-09 16:59:24,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5969 to 5474. [2021-07-09 16:59:24,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 5473 states have (on average 2.647907911565869) internal successors, (14492), 5473 states have internal predecessors, (14492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:24,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 14492 transitions. [2021-07-09 16:59:24,791 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 14492 transitions. Word has length 119 [2021-07-09 16:59:24,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:24,791 INFO L482 AbstractCegarLoop]: Abstraction has 5474 states and 14492 transitions. [2021-07-09 16:59:24,791 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:24,791 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 14492 transitions. [2021-07-09 16:59:24,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:59:24,797 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:24,798 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:24,798 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-07-09 16:59:24,798 INFO L430 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:24,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:24,798 INFO L82 PathProgramCache]: Analyzing trace with hash -445696723, now seen corresponding path program 74 times [2021-07-09 16:59:24,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:24,798 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461041859] [2021-07-09 16:59:24,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:25,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:25,454 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:25,454 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461041859] [2021-07-09 16:59:25,454 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461041859] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:25,454 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:25,454 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:59:25,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165730146] [2021-07-09 16:59:25,454 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:59:25,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:25,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:59:25,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:59:25,455 INFO L87 Difference]: Start difference. First operand 5474 states and 14492 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:26,475 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-09 16:59:26,708 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-09 16:59:28,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:28,262 INFO L93 Difference]: Finished difference Result 6630 states and 17249 transitions. [2021-07-09 16:59:28,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-09 16:59:28,262 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:59:28,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:28,270 INFO L225 Difference]: With dead ends: 6630 [2021-07-09 16:59:28,270 INFO L226 Difference]: Without dead ends: 5641 [2021-07-09 16:59:28,270 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 2435.0ms TimeCoverageRelationStatistics Valid=515, Invalid=2677, Unknown=0, NotChecked=0, Total=3192 [2021-07-09 16:59:28,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5641 states. [2021-07-09 16:59:28,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5641 to 5138. [2021-07-09 16:59:28,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5138 states, 5137 states have (on average 2.653688923496204) internal successors, (13632), 5137 states have internal predecessors, (13632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:28,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5138 states to 5138 states and 13632 transitions. [2021-07-09 16:59:28,342 INFO L78 Accepts]: Start accepts. Automaton has 5138 states and 13632 transitions. Word has length 119 [2021-07-09 16:59:28,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:28,342 INFO L482 AbstractCegarLoop]: Abstraction has 5138 states and 13632 transitions. [2021-07-09 16:59:28,342 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:28,343 INFO L276 IsEmpty]: Start isEmpty. Operand 5138 states and 13632 transitions. [2021-07-09 16:59:28,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:59:28,348 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:28,348 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:28,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-07-09 16:59:28,348 INFO L430 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:28,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:28,349 INFO L82 PathProgramCache]: Analyzing trace with hash -889761385, now seen corresponding path program 75 times [2021-07-09 16:59:28,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:28,349 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263401912] [2021-07-09 16:59:28,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:29,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:29,043 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:29,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263401912] [2021-07-09 16:59:29,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263401912] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:29,043 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:29,043 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:59:29,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312401363] [2021-07-09 16:59:29,043 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:59:29,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:29,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:59:29,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:59:29,044 INFO L87 Difference]: Start difference. First operand 5138 states and 13632 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:30,071 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-09 16:59:30,325 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-09 16:59:30,648 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-07-09 16:59:31,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:31,685 INFO L93 Difference]: Finished difference Result 5659 states and 14907 transitions. [2021-07-09 16:59:31,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 16:59:31,685 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:59:31,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:31,693 INFO L225 Difference]: With dead ends: 5659 [2021-07-09 16:59:31,694 INFO L226 Difference]: Without dead ends: 5329 [2021-07-09 16:59:31,694 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 2305.9ms TimeCoverageRelationStatistics Valid=460, Invalid=2296, Unknown=0, NotChecked=0, Total=2756 [2021-07-09 16:59:31,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5329 states. [2021-07-09 16:59:31,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5329 to 5012. [2021-07-09 16:59:31,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5012 states, 5011 states have (on average 2.672320894033127) internal successors, (13391), 5011 states have internal predecessors, (13391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:31,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5012 states to 5012 states and 13391 transitions. [2021-07-09 16:59:31,764 INFO L78 Accepts]: Start accepts. Automaton has 5012 states and 13391 transitions. Word has length 119 [2021-07-09 16:59:31,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:31,764 INFO L482 AbstractCegarLoop]: Abstraction has 5012 states and 13391 transitions. [2021-07-09 16:59:31,765 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:31,765 INFO L276 IsEmpty]: Start isEmpty. Operand 5012 states and 13391 transitions. [2021-07-09 16:59:31,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:59:31,770 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:31,770 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:31,770 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-07-09 16:59:31,770 INFO L430 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:31,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:31,771 INFO L82 PathProgramCache]: Analyzing trace with hash 832813625, now seen corresponding path program 76 times [2021-07-09 16:59:31,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:31,771 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470303700] [2021-07-09 16:59:31,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:32,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:32,629 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:32,629 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470303700] [2021-07-09 16:59:32,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470303700] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:32,629 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:32,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:59:32,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27688755] [2021-07-09 16:59:32,629 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:59:32,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:32,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:59:32,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:59:32,630 INFO L87 Difference]: Start difference. First operand 5012 states and 13391 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:33,916 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-09 16:59:34,107 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-07-09 16:59:35,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:35,036 INFO L93 Difference]: Finished difference Result 5603 states and 14850 transitions. [2021-07-09 16:59:35,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 16:59:35,055 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:59:35,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:35,061 INFO L225 Difference]: With dead ends: 5603 [2021-07-09 16:59:35,061 INFO L226 Difference]: Without dead ends: 5350 [2021-07-09 16:59:35,062 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 2270.1ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 16:59:35,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5350 states. [2021-07-09 16:59:35,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5350 to 4976. [2021-07-09 16:59:35,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4976 states, 4975 states have (on average 2.675175879396985) internal successors, (13309), 4975 states have internal predecessors, (13309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:35,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4976 states to 4976 states and 13309 transitions. [2021-07-09 16:59:35,123 INFO L78 Accepts]: Start accepts. Automaton has 4976 states and 13309 transitions. Word has length 119 [2021-07-09 16:59:35,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:35,123 INFO L482 AbstractCegarLoop]: Abstraction has 4976 states and 13309 transitions. [2021-07-09 16:59:35,123 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:35,123 INFO L276 IsEmpty]: Start isEmpty. Operand 4976 states and 13309 transitions. [2021-07-09 16:59:35,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:59:35,128 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:35,128 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:35,128 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-07-09 16:59:35,128 INFO L430 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:35,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:35,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1524191655, now seen corresponding path program 77 times [2021-07-09 16:59:35,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:35,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537728867] [2021-07-09 16:59:35,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:35,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:35,379 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:35,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537728867] [2021-07-09 16:59:35,379 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537728867] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:35,379 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:35,379 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:59:35,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477487989] [2021-07-09 16:59:35,379 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:59:35,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:35,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:59:35,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:59:35,380 INFO L87 Difference]: Start difference. First operand 4976 states and 13309 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:35,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:35,894 INFO L93 Difference]: Finished difference Result 8487 states and 21897 transitions. [2021-07-09 16:59:35,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:59:35,894 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:59:35,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:35,906 INFO L225 Difference]: With dead ends: 8487 [2021-07-09 16:59:35,907 INFO L226 Difference]: Without dead ends: 8487 [2021-07-09 16:59:35,907 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 430.8ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-07-09 16:59:35,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8487 states. [2021-07-09 16:59:35,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8487 to 5227. [2021-07-09 16:59:35,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 5226 states have (on average 2.617489475698431) internal successors, (13679), 5226 states have internal predecessors, (13679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:36,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 13679 transitions. [2021-07-09 16:59:36,000 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 13679 transitions. Word has length 119 [2021-07-09 16:59:36,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:36,000 INFO L482 AbstractCegarLoop]: Abstraction has 5227 states and 13679 transitions. [2021-07-09 16:59:36,000 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:36,000 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 13679 transitions. [2021-07-09 16:59:36,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:59:36,006 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:36,006 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:36,006 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-07-09 16:59:36,006 INFO L430 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:36,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:36,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1188435381, now seen corresponding path program 78 times [2021-07-09 16:59:36,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:36,007 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141293084] [2021-07-09 16:59:36,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:36,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:36,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:36,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141293084] [2021-07-09 16:59:36,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141293084] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:36,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:36,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:59:36,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447092750] [2021-07-09 16:59:36,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:59:36,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:36,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:59:36,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:59:36,653 INFO L87 Difference]: Start difference. First operand 5227 states and 13679 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:37,497 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-07-09 16:59:37,700 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-07-09 16:59:37,953 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-07-09 16:59:39,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:39,972 INFO L93 Difference]: Finished difference Result 7532 states and 19469 transitions. [2021-07-09 16:59:39,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 16:59:39,972 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:59:39,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:39,982 INFO L225 Difference]: With dead ends: 7532 [2021-07-09 16:59:39,983 INFO L226 Difference]: Without dead ends: 7226 [2021-07-09 16:59:39,983 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 2731.0ms TimeCoverageRelationStatistics Valid=571, Invalid=2969, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 16:59:39,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7226 states. [2021-07-09 16:59:40,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7226 to 5479. [2021-07-09 16:59:40,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6299744432274554) internal successors, (14407), 5478 states have internal predecessors, (14407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:40,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14407 transitions. [2021-07-09 16:59:40,069 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14407 transitions. Word has length 119 [2021-07-09 16:59:40,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:40,069 INFO L482 AbstractCegarLoop]: Abstraction has 5479 states and 14407 transitions. [2021-07-09 16:59:40,069 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:40,069 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14407 transitions. [2021-07-09 16:59:40,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:59:40,075 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:40,075 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:40,075 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-07-09 16:59:40,075 INFO L430 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:40,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:40,075 INFO L82 PathProgramCache]: Analyzing trace with hash -2102684717, now seen corresponding path program 79 times [2021-07-09 16:59:40,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:40,075 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166563114] [2021-07-09 16:59:40,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:40,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:40,758 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:40,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166563114] [2021-07-09 16:59:40,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166563114] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:40,758 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:40,758 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:59:40,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874718529] [2021-07-09 16:59:40,759 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:59:40,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:40,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:59:40,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:59:40,759 INFO L87 Difference]: Start difference. First operand 5479 states and 14407 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:41,748 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2021-07-09 16:59:41,980 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-07-09 16:59:43,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:43,936 INFO L93 Difference]: Finished difference Result 7899 states and 20487 transitions. [2021-07-09 16:59:43,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 16:59:43,937 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:59:43,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:43,945 INFO L225 Difference]: With dead ends: 7899 [2021-07-09 16:59:43,946 INFO L226 Difference]: Without dead ends: 7133 [2021-07-09 16:59:43,946 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 2734.8ms TimeCoverageRelationStatistics Valid=614, Invalid=2926, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 16:59:43,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7133 states. [2021-07-09 16:59:44,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7133 to 5599. [2021-07-09 16:59:44,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5599 states, 5598 states have (on average 2.6121829224723117) internal successors, (14623), 5598 states have internal predecessors, (14623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:44,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5599 states to 5599 states and 14623 transitions. [2021-07-09 16:59:44,025 INFO L78 Accepts]: Start accepts. Automaton has 5599 states and 14623 transitions. Word has length 119 [2021-07-09 16:59:44,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:44,025 INFO L482 AbstractCegarLoop]: Abstraction has 5599 states and 14623 transitions. [2021-07-09 16:59:44,025 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:44,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5599 states and 14623 transitions. [2021-07-09 16:59:44,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:59:44,031 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:44,031 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:44,032 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-07-09 16:59:44,032 INFO L430 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:44,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:44,032 INFO L82 PathProgramCache]: Analyzing trace with hash -894259353, now seen corresponding path program 80 times [2021-07-09 16:59:44,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:44,032 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163063503] [2021-07-09 16:59:44,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:44,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:44,728 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:44,728 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163063503] [2021-07-09 16:59:44,728 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163063503] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:44,728 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:44,729 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:59:44,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388353276] [2021-07-09 16:59:44,729 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:59:44,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:44,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:59:44,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:59:44,729 INFO L87 Difference]: Start difference. First operand 5599 states and 14623 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:45,739 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2021-07-09 16:59:45,980 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-07-09 16:59:48,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:48,196 INFO L93 Difference]: Finished difference Result 7324 states and 18864 transitions. [2021-07-09 16:59:48,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-09 16:59:48,196 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:59:48,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:48,205 INFO L225 Difference]: With dead ends: 7324 [2021-07-09 16:59:48,205 INFO L226 Difference]: Without dead ends: 6533 [2021-07-09 16:59:48,206 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 3013.5ms TimeCoverageRelationStatistics Valid=635, Invalid=3147, Unknown=0, NotChecked=0, Total=3782 [2021-07-09 16:59:48,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6533 states. [2021-07-09 16:59:48,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6533 to 4999. [2021-07-09 16:59:48,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4999 states, 4998 states have (on average 2.6048419367747098) internal successors, (13019), 4998 states have internal predecessors, (13019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:48,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4999 states to 4999 states and 13019 transitions. [2021-07-09 16:59:48,276 INFO L78 Accepts]: Start accepts. Automaton has 4999 states and 13019 transitions. Word has length 119 [2021-07-09 16:59:48,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:48,276 INFO L482 AbstractCegarLoop]: Abstraction has 4999 states and 13019 transitions. [2021-07-09 16:59:48,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:48,276 INFO L276 IsEmpty]: Start isEmpty. Operand 4999 states and 13019 transitions. [2021-07-09 16:59:48,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:59:48,281 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:48,281 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:48,281 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-07-09 16:59:48,281 INFO L430 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:48,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:48,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1499360957, now seen corresponding path program 81 times [2021-07-09 16:59:48,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:48,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987096206] [2021-07-09 16:59:48,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:48,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:49,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:49,042 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:49,042 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987096206] [2021-07-09 16:59:49,042 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987096206] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:49,042 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:49,042 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:59:49,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702248034] [2021-07-09 16:59:49,042 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:59:49,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:49,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:59:49,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:59:49,043 INFO L87 Difference]: Start difference. First operand 4999 states and 13019 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:50,060 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-07-09 16:59:50,313 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-07-09 16:59:50,757 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-09 16:59:52,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:52,410 INFO L93 Difference]: Finished difference Result 6078 states and 15553 transitions. [2021-07-09 16:59:52,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 16:59:52,411 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:59:52,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:52,417 INFO L225 Difference]: With dead ends: 6078 [2021-07-09 16:59:52,418 INFO L226 Difference]: Without dead ends: 5731 [2021-07-09 16:59:52,418 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 2902.0ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 16:59:52,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5731 states. [2021-07-09 16:59:52,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5731 to 4977. [2021-07-09 16:59:52,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4977 states, 4976 states have (on average 2.6063102893890675) internal successors, (12969), 4976 states have internal predecessors, (12969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:52,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4977 states to 4977 states and 12969 transitions. [2021-07-09 16:59:52,487 INFO L78 Accepts]: Start accepts. Automaton has 4977 states and 12969 transitions. Word has length 119 [2021-07-09 16:59:52,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:52,487 INFO L482 AbstractCegarLoop]: Abstraction has 4977 states and 12969 transitions. [2021-07-09 16:59:52,487 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:52,487 INFO L276 IsEmpty]: Start isEmpty. Operand 4977 states and 12969 transitions. [2021-07-09 16:59:52,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:59:52,493 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:52,493 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:52,493 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-07-09 16:59:52,493 INFO L430 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:52,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:52,493 INFO L82 PathProgramCache]: Analyzing trace with hash -795045643, now seen corresponding path program 82 times [2021-07-09 16:59:52,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:52,493 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289833937] [2021-07-09 16:59:52,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:53,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:53,193 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:53,193 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289833937] [2021-07-09 16:59:53,193 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289833937] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:53,193 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:53,193 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:59:53,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319162526] [2021-07-09 16:59:53,193 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:59:53,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:53,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:59:53,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:59:53,194 INFO L87 Difference]: Start difference. First operand 4977 states and 12969 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:54,200 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-07-09 16:59:54,587 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-07-09 16:59:54,786 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-07-09 16:59:56,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:56,414 INFO L93 Difference]: Finished difference Result 5833 states and 14868 transitions. [2021-07-09 16:59:56,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 16:59:56,414 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 16:59:56,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:56,421 INFO L225 Difference]: With dead ends: 5833 [2021-07-09 16:59:56,421 INFO L226 Difference]: Without dead ends: 5401 [2021-07-09 16:59:56,421 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2780.0ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-07-09 16:59:56,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5401 states. [2021-07-09 16:59:56,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5401 to 4910. [2021-07-09 16:59:56,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4910 states, 4909 states have (on average 2.6209003870442045) internal successors, (12866), 4909 states have internal predecessors, (12866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:56,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4910 states to 4910 states and 12866 transitions. [2021-07-09 16:59:56,487 INFO L78 Accepts]: Start accepts. Automaton has 4910 states and 12866 transitions. Word has length 119 [2021-07-09 16:59:56,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:56,487 INFO L482 AbstractCegarLoop]: Abstraction has 4910 states and 12866 transitions. [2021-07-09 16:59:56,487 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:56,487 INFO L276 IsEmpty]: Start isEmpty. Operand 4910 states and 12866 transitions. [2021-07-09 16:59:56,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 16:59:56,492 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:56,492 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:56,493 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-07-09 16:59:56,493 INFO L430 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:56,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:56,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1008413389, now seen corresponding path program 83 times [2021-07-09 16:59:56,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:56,493 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572853784] [2021-07-09 16:59:56,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:57,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:57,211 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:57,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572853784] [2021-07-09 16:59:57,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572853784] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:57,211 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:59:57,211 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:59:57,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159277641] [2021-07-09 16:59:57,211 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:59:57,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:57,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:59:57,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:59:57,211 INFO L87 Difference]: Start difference. First operand 4910 states and 12866 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:58,607 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-09 16:59:58,790 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-09 17:00:00,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:00,369 INFO L93 Difference]: Finished difference Result 5690 states and 14572 transitions. [2021-07-09 17:00:00,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 17:00:00,369 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:00,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:00,376 INFO L225 Difference]: With dead ends: 5690 [2021-07-09 17:00:00,377 INFO L226 Difference]: Without dead ends: 5377 [2021-07-09 17:00:00,377 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 2676.5ms TimeCoverageRelationStatistics Valid=600, Invalid=2822, Unknown=0, NotChecked=0, Total=3422 [2021-07-09 17:00:00,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5377 states. [2021-07-09 17:00:00,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5377 to 4923. [2021-07-09 17:00:00,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4923 states, 4922 states have (on average 2.616212921576595) internal successors, (12877), 4922 states have internal predecessors, (12877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:00,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4923 states to 4923 states and 12877 transitions. [2021-07-09 17:00:00,449 INFO L78 Accepts]: Start accepts. Automaton has 4923 states and 12877 transitions. Word has length 119 [2021-07-09 17:00:00,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:00,450 INFO L482 AbstractCegarLoop]: Abstraction has 4923 states and 12877 transitions. [2021-07-09 17:00:00,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:00,450 INFO L276 IsEmpty]: Start isEmpty. Operand 4923 states and 12877 transitions. [2021-07-09 17:00:00,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:00,455 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:00,455 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:00,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-07-09 17:00:00,456 INFO L430 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:00,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:00,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1003995249, now seen corresponding path program 84 times [2021-07-09 17:00:00,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:00,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116123896] [2021-07-09 17:00:00,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:01,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:01,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:01,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116123896] [2021-07-09 17:00:01,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116123896] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:01,184 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:01,184 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:00:01,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215099237] [2021-07-09 17:00:01,184 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:00:01,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:01,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:00:01,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:00:01,185 INFO L87 Difference]: Start difference. First operand 4923 states and 12877 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:02,179 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-07-09 17:00:02,411 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-09 17:00:04,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:04,524 INFO L93 Difference]: Finished difference Result 7506 states and 19399 transitions. [2021-07-09 17:00:04,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 17:00:04,525 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:04,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:04,534 INFO L225 Difference]: With dead ends: 7506 [2021-07-09 17:00:04,534 INFO L226 Difference]: Without dead ends: 7210 [2021-07-09 17:00:04,535 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 2849.4ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 17:00:04,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7210 states. [2021-07-09 17:00:04,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7210 to 5499. [2021-07-09 17:00:04,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 2.630956711531466) internal successors, (14465), 5498 states have internal predecessors, (14465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:04,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 14465 transitions. [2021-07-09 17:00:04,620 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 14465 transitions. Word has length 119 [2021-07-09 17:00:04,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:04,620 INFO L482 AbstractCegarLoop]: Abstraction has 5499 states and 14465 transitions. [2021-07-09 17:00:04,620 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:04,620 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 14465 transitions. [2021-07-09 17:00:04,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:04,626 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:04,626 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:04,626 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-07-09 17:00:04,626 INFO L430 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:04,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:04,626 INFO L82 PathProgramCache]: Analyzing trace with hash 529288947, now seen corresponding path program 85 times [2021-07-09 17:00:04,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:04,626 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677459558] [2021-07-09 17:00:04,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:05,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:05,278 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:05,278 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677459558] [2021-07-09 17:00:05,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677459558] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:05,278 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:05,278 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:00:05,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015721998] [2021-07-09 17:00:05,278 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:00:05,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:05,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:00:05,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:00:05,279 INFO L87 Difference]: Start difference. First operand 5499 states and 14465 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:06,289 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-07-09 17:00:06,525 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-09 17:00:08,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:08,889 INFO L93 Difference]: Finished difference Result 8197 states and 21189 transitions. [2021-07-09 17:00:08,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-09 17:00:08,889 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:08,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:08,899 INFO L225 Difference]: With dead ends: 8197 [2021-07-09 17:00:08,900 INFO L226 Difference]: Without dead ends: 6649 [2021-07-09 17:00:08,900 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 2987.4ms TimeCoverageRelationStatistics Valid=672, Invalid=3360, Unknown=0, NotChecked=0, Total=4032 [2021-07-09 17:00:08,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6649 states. [2021-07-09 17:00:08,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6649 to 4971. [2021-07-09 17:00:08,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4971 states, 4970 states have (on average 2.6054325955734408) internal successors, (12949), 4970 states have internal predecessors, (12949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:08,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4971 states to 4971 states and 12949 transitions. [2021-07-09 17:00:08,988 INFO L78 Accepts]: Start accepts. Automaton has 4971 states and 12949 transitions. Word has length 119 [2021-07-09 17:00:08,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:08,988 INFO L482 AbstractCegarLoop]: Abstraction has 4971 states and 12949 transitions. [2021-07-09 17:00:08,988 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:08,988 INFO L276 IsEmpty]: Start isEmpty. Operand 4971 states and 12949 transitions. [2021-07-09 17:00:08,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:08,994 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:08,994 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:08,994 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-07-09 17:00:08,994 INFO L430 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:08,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:08,994 INFO L82 PathProgramCache]: Analyzing trace with hash 85224285, now seen corresponding path program 86 times [2021-07-09 17:00:08,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:08,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983846233] [2021-07-09 17:00:08,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:09,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:09,735 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:09,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983846233] [2021-07-09 17:00:09,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983846233] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:09,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:09,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:00:09,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096633296] [2021-07-09 17:00:09,736 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:00:09,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:09,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:00:09,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:00:09,736 INFO L87 Difference]: Start difference. First operand 4971 states and 12949 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:10,735 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-07-09 17:00:10,971 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-09 17:00:11,419 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-07-09 17:00:13,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:13,003 INFO L93 Difference]: Finished difference Result 6114 states and 15657 transitions. [2021-07-09 17:00:13,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 17:00:13,004 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:13,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:13,011 INFO L225 Difference]: With dead ends: 6114 [2021-07-09 17:00:13,011 INFO L226 Difference]: Without dead ends: 5694 [2021-07-09 17:00:13,011 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 2833.4ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 17:00:13,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5694 states. [2021-07-09 17:00:13,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5694 to 4851. [2021-07-09 17:00:13,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4851 states, 4850 states have (on average 2.6195876288659794) internal successors, (12705), 4850 states have internal predecessors, (12705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:13,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4851 states to 4851 states and 12705 transitions. [2021-07-09 17:00:13,085 INFO L78 Accepts]: Start accepts. Automaton has 4851 states and 12705 transitions. Word has length 119 [2021-07-09 17:00:13,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:13,085 INFO L482 AbstractCegarLoop]: Abstraction has 4851 states and 12705 transitions. [2021-07-09 17:00:13,085 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:13,085 INFO L276 IsEmpty]: Start isEmpty. Operand 4851 states and 12705 transitions. [2021-07-09 17:00:13,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:13,090 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:13,090 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:13,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-07-09 17:00:13,090 INFO L430 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:13,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:13,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1329069541, now seen corresponding path program 87 times [2021-07-09 17:00:13,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:13,091 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094624897] [2021-07-09 17:00:13,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:13,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:13,340 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:13,340 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094624897] [2021-07-09 17:00:13,340 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094624897] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:13,340 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:13,340 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 17:00:13,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842122691] [2021-07-09 17:00:13,340 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 17:00:13,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:13,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 17:00:13,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-07-09 17:00:13,340 INFO L87 Difference]: Start difference. First operand 4851 states and 12705 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:13,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:13,844 INFO L93 Difference]: Finished difference Result 4816 states and 12107 transitions. [2021-07-09 17:00:13,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 17:00:13,845 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:13,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:13,852 INFO L225 Difference]: With dead ends: 4816 [2021-07-09 17:00:13,852 INFO L226 Difference]: Without dead ends: 4680 [2021-07-09 17:00:13,852 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 450.0ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-07-09 17:00:13,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4680 states. [2021-07-09 17:00:13,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4680 to 3879. [2021-07-09 17:00:13,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3879 states, 3878 states have (on average 2.564466219700877) internal successors, (9945), 3878 states have internal predecessors, (9945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:13,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3879 states to 3879 states and 9945 transitions. [2021-07-09 17:00:13,916 INFO L78 Accepts]: Start accepts. Automaton has 3879 states and 9945 transitions. Word has length 119 [2021-07-09 17:00:13,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:13,916 INFO L482 AbstractCegarLoop]: Abstraction has 3879 states and 9945 transitions. [2021-07-09 17:00:13,916 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:13,916 INFO L276 IsEmpty]: Start isEmpty. Operand 3879 states and 9945 transitions. [2021-07-09 17:00:13,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:13,920 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:13,920 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:13,921 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-07-09 17:00:13,921 INFO L430 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:13,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:13,921 INFO L82 PathProgramCache]: Analyzing trace with hash -496809957, now seen corresponding path program 88 times [2021-07-09 17:00:13,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:13,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902035971] [2021-07-09 17:00:13,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:14,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:14,592 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:14,592 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902035971] [2021-07-09 17:00:14,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902035971] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:14,592 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:14,592 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:00:14,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362435866] [2021-07-09 17:00:14,593 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:00:14,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:14,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:00:14,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:00:14,593 INFO L87 Difference]: Start difference. First operand 3879 states and 9945 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:15,396 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-07-09 17:00:15,906 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-09 17:00:16,125 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-09 17:00:17,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:17,217 INFO L93 Difference]: Finished difference Result 4117 states and 10389 transitions. [2021-07-09 17:00:17,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:00:17,217 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:17,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:17,223 INFO L225 Difference]: With dead ends: 4117 [2021-07-09 17:00:17,223 INFO L226 Difference]: Without dead ends: 3897 [2021-07-09 17:00:17,223 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 2230.5ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:00:17,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3897 states. [2021-07-09 17:00:17,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3897 to 3877. [2021-07-09 17:00:17,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3877 states, 3876 states have (on average 2.56140350877193) internal successors, (9928), 3876 states have internal predecessors, (9928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:17,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3877 states to 3877 states and 9928 transitions. [2021-07-09 17:00:17,278 INFO L78 Accepts]: Start accepts. Automaton has 3877 states and 9928 transitions. Word has length 119 [2021-07-09 17:00:17,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:17,278 INFO L482 AbstractCegarLoop]: Abstraction has 3877 states and 9928 transitions. [2021-07-09 17:00:17,278 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:17,278 INFO L276 IsEmpty]: Start isEmpty. Operand 3877 states and 9928 transitions. [2021-07-09 17:00:17,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:17,283 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:17,283 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:17,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-07-09 17:00:17,283 INFO L430 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:17,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:17,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1625668367, now seen corresponding path program 89 times [2021-07-09 17:00:17,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:17,283 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408461940] [2021-07-09 17:00:17,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:18,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:18,022 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:18,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408461940] [2021-07-09 17:00:18,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408461940] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:18,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:18,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:00:18,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379636569] [2021-07-09 17:00:18,023 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:00:18,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:18,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:00:18,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:00:18,023 INFO L87 Difference]: Start difference. First operand 3877 states and 9928 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:19,774 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-07-09 17:00:20,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:20,734 INFO L93 Difference]: Finished difference Result 4213 states and 10591 transitions. [2021-07-09 17:00:20,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 17:00:20,734 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:20,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:20,740 INFO L225 Difference]: With dead ends: 4213 [2021-07-09 17:00:20,740 INFO L226 Difference]: Without dead ends: 3983 [2021-07-09 17:00:20,741 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 2363.3ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-07-09 17:00:20,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3983 states. [2021-07-09 17:00:20,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3983 to 3881. [2021-07-09 17:00:20,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3881 states, 3880 states have (on average 2.5603092783505152) internal successors, (9934), 3880 states have internal predecessors, (9934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:20,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3881 states to 3881 states and 9934 transitions. [2021-07-09 17:00:20,799 INFO L78 Accepts]: Start accepts. Automaton has 3881 states and 9934 transitions. Word has length 119 [2021-07-09 17:00:20,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:20,799 INFO L482 AbstractCegarLoop]: Abstraction has 3881 states and 9934 transitions. [2021-07-09 17:00:20,799 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:20,799 INFO L276 IsEmpty]: Start isEmpty. Operand 3881 states and 9934 transitions. [2021-07-09 17:00:20,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:20,804 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:20,804 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:20,804 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-07-09 17:00:20,804 INFO L430 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:20,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:20,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1211899971, now seen corresponding path program 90 times [2021-07-09 17:00:20,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:20,804 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286403313] [2021-07-09 17:00:20,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:21,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:21,507 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:21,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286403313] [2021-07-09 17:00:21,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286403313] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:21,507 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:21,507 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:00:21,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420612731] [2021-07-09 17:00:21,507 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:00:21,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:21,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:00:21,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:00:21,508 INFO L87 Difference]: Start difference. First operand 3881 states and 9934 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:23,022 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-09 17:00:24,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:24,054 INFO L93 Difference]: Finished difference Result 4099 states and 10347 transitions. [2021-07-09 17:00:24,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:00:24,055 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:24,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:24,060 INFO L225 Difference]: With dead ends: 4099 [2021-07-09 17:00:24,061 INFO L226 Difference]: Without dead ends: 3875 [2021-07-09 17:00:24,061 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 2266.2ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:00:24,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3875 states. [2021-07-09 17:00:24,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3875 to 3867. [2021-07-09 17:00:24,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3867 states, 3866 states have (on average 2.5613036730470773) internal successors, (9902), 3866 states have internal predecessors, (9902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:24,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3867 states to 3867 states and 9902 transitions. [2021-07-09 17:00:24,118 INFO L78 Accepts]: Start accepts. Automaton has 3867 states and 9902 transitions. Word has length 119 [2021-07-09 17:00:24,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:24,119 INFO L482 AbstractCegarLoop]: Abstraction has 3867 states and 9902 transitions. [2021-07-09 17:00:24,119 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:24,119 INFO L276 IsEmpty]: Start isEmpty. Operand 3867 states and 9902 transitions. [2021-07-09 17:00:24,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:24,123 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:24,123 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:24,123 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-07-09 17:00:24,124 INFO L430 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:24,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:24,124 INFO L82 PathProgramCache]: Analyzing trace with hash -830903603, now seen corresponding path program 91 times [2021-07-09 17:00:24,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:24,124 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674281175] [2021-07-09 17:00:24,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:24,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:24,795 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:24,795 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674281175] [2021-07-09 17:00:24,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674281175] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:24,795 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:24,795 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:00:24,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579288619] [2021-07-09 17:00:24,796 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:00:24,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:24,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:00:24,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:00:24,796 INFO L87 Difference]: Start difference. First operand 3867 states and 9902 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:27,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:27,391 INFO L93 Difference]: Finished difference Result 4890 states and 12349 transitions. [2021-07-09 17:00:27,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 17:00:27,392 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:27,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:27,398 INFO L225 Difference]: With dead ends: 4890 [2021-07-09 17:00:27,398 INFO L226 Difference]: Without dead ends: 4684 [2021-07-09 17:00:27,398 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 2185.8ms TimeCoverageRelationStatistics Valid=463, Invalid=2399, Unknown=0, NotChecked=0, Total=2862 [2021-07-09 17:00:27,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4684 states. [2021-07-09 17:00:27,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4684 to 4239. [2021-07-09 17:00:27,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4239 states, 4238 states have (on average 2.556394525719679) internal successors, (10834), 4238 states have internal predecessors, (10834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:27,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4239 states to 4239 states and 10834 transitions. [2021-07-09 17:00:27,454 INFO L78 Accepts]: Start accepts. Automaton has 4239 states and 10834 transitions. Word has length 119 [2021-07-09 17:00:27,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:27,455 INFO L482 AbstractCegarLoop]: Abstraction has 4239 states and 10834 transitions. [2021-07-09 17:00:27,455 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:27,455 INFO L276 IsEmpty]: Start isEmpty. Operand 4239 states and 10834 transitions. [2021-07-09 17:00:27,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:27,459 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:27,459 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:27,459 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-07-09 17:00:27,459 INFO L430 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:27,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:27,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1305609905, now seen corresponding path program 92 times [2021-07-09 17:00:27,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:27,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101582490] [2021-07-09 17:00:27,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:28,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:28,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:28,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101582490] [2021-07-09 17:00:28,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101582490] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:28,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:28,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:00:28,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348334695] [2021-07-09 17:00:28,140 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:00:28,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:28,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:00:28,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:00:28,141 INFO L87 Difference]: Start difference. First operand 4239 states and 10834 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:31,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:31,157 INFO L93 Difference]: Finished difference Result 5345 states and 13375 transitions. [2021-07-09 17:00:31,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 17:00:31,158 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:31,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:31,163 INFO L225 Difference]: With dead ends: 5345 [2021-07-09 17:00:31,163 INFO L226 Difference]: Without dead ends: 4356 [2021-07-09 17:00:31,163 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2606.9ms TimeCoverageRelationStatistics Valid=524, Invalid=2782, Unknown=0, NotChecked=0, Total=3306 [2021-07-09 17:00:31,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4356 states. [2021-07-09 17:00:31,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4356 to 3903. [2021-07-09 17:00:31,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3903 states, 3902 states have (on average 2.5315222962583293) internal successors, (9878), 3902 states have internal predecessors, (9878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:31,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3903 states to 3903 states and 9878 transitions. [2021-07-09 17:00:31,218 INFO L78 Accepts]: Start accepts. Automaton has 3903 states and 9878 transitions. Word has length 119 [2021-07-09 17:00:31,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:31,218 INFO L482 AbstractCegarLoop]: Abstraction has 3903 states and 9878 transitions. [2021-07-09 17:00:31,218 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:31,219 INFO L276 IsEmpty]: Start isEmpty. Operand 3903 states and 9878 transitions. [2021-07-09 17:00:31,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:31,223 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:31,223 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:31,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-07-09 17:00:31,223 INFO L430 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:31,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:31,223 INFO L82 PathProgramCache]: Analyzing trace with hash -70632339, now seen corresponding path program 93 times [2021-07-09 17:00:31,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:31,223 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556935860] [2021-07-09 17:00:31,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:31,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:31,873 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:31,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556935860] [2021-07-09 17:00:31,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556935860] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:31,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:31,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:00:31,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478275944] [2021-07-09 17:00:31,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:00:31,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:31,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:00:31,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:00:31,874 INFO L87 Difference]: Start difference. First operand 3903 states and 9878 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:34,010 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2021-07-09 17:00:34,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:34,662 INFO L93 Difference]: Finished difference Result 4481 states and 11166 transitions. [2021-07-09 17:00:34,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 17:00:34,662 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:34,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:34,667 INFO L225 Difference]: With dead ends: 4481 [2021-07-09 17:00:34,667 INFO L226 Difference]: Without dead ends: 4131 [2021-07-09 17:00:34,667 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 2427.8ms TimeCoverageRelationStatistics Valid=460, Invalid=2402, Unknown=0, NotChecked=0, Total=2862 [2021-07-09 17:00:34,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4131 states. [2021-07-09 17:00:34,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4131 to 3783. [2021-07-09 17:00:34,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3783 states, 3782 states have (on average 2.5483870967741935) internal successors, (9638), 3782 states have internal predecessors, (9638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:34,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3783 states to 3783 states and 9638 transitions. [2021-07-09 17:00:34,714 INFO L78 Accepts]: Start accepts. Automaton has 3783 states and 9638 transitions. Word has length 119 [2021-07-09 17:00:34,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:34,715 INFO L482 AbstractCegarLoop]: Abstraction has 3783 states and 9638 transitions. [2021-07-09 17:00:34,715 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:34,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3783 states and 9638 transitions. [2021-07-09 17:00:34,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:34,719 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:34,719 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:34,719 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-07-09 17:00:34,719 INFO L430 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:34,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:34,719 INFO L82 PathProgramCache]: Analyzing trace with hash 969626369, now seen corresponding path program 94 times [2021-07-09 17:00:34,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:34,719 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699925762] [2021-07-09 17:00:34,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:35,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:35,375 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:35,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699925762] [2021-07-09 17:00:35,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699925762] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:35,376 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:35,376 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:00:35,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90724806] [2021-07-09 17:00:35,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:00:35,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:35,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:00:35,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:00:35,376 INFO L87 Difference]: Start difference. First operand 3783 states and 9638 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:36,559 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-09 17:00:38,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:38,070 INFO L93 Difference]: Finished difference Result 4290 states and 10767 transitions. [2021-07-09 17:00:38,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 17:00:38,070 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:38,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:38,076 INFO L225 Difference]: With dead ends: 4290 [2021-07-09 17:00:38,076 INFO L226 Difference]: Without dead ends: 4084 [2021-07-09 17:00:38,077 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 2378.9ms TimeCoverageRelationStatistics Valid=485, Invalid=2485, Unknown=0, NotChecked=0, Total=2970 [2021-07-09 17:00:38,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4084 states. [2021-07-09 17:00:38,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4084 to 3927. [2021-07-09 17:00:38,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3927 states, 3926 states have (on average 2.5455934793683137) internal successors, (9994), 3926 states have internal predecessors, (9994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:38,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3927 states to 3927 states and 9994 transitions. [2021-07-09 17:00:38,131 INFO L78 Accepts]: Start accepts. Automaton has 3927 states and 9994 transitions. Word has length 119 [2021-07-09 17:00:38,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:38,131 INFO L482 AbstractCegarLoop]: Abstraction has 3927 states and 9994 transitions. [2021-07-09 17:00:38,131 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:38,131 INFO L276 IsEmpty]: Start isEmpty. Operand 3927 states and 9994 transitions. [2021-07-09 17:00:38,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:38,135 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:38,135 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:38,135 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-07-09 17:00:38,136 INFO L430 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:38,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:38,136 INFO L82 PathProgramCache]: Analyzing trace with hash 494920067, now seen corresponding path program 95 times [2021-07-09 17:00:38,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:38,136 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308107018] [2021-07-09 17:00:38,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:38,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:38,778 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:38,778 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308107018] [2021-07-09 17:00:38,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308107018] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:38,778 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:38,778 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:00:38,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938917139] [2021-07-09 17:00:38,779 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:00:38,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:38,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:00:38,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:00:38,779 INFO L87 Difference]: Start difference. First operand 3927 states and 9994 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:40,063 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-09 17:00:41,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:41,857 INFO L93 Difference]: Finished difference Result 4565 states and 11349 transitions. [2021-07-09 17:00:41,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 17:00:41,858 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:41,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:41,863 INFO L225 Difference]: With dead ends: 4565 [2021-07-09 17:00:41,863 INFO L226 Difference]: Without dead ends: 3576 [2021-07-09 17:00:41,863 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 2604.0ms TimeCoverageRelationStatistics Valid=549, Invalid=2873, Unknown=0, NotChecked=0, Total=3422 [2021-07-09 17:00:41,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2021-07-09 17:00:41,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3375. [2021-07-09 17:00:41,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3375 states, 3374 states have (on average 2.5471250740960283) internal successors, (8594), 3374 states have internal predecessors, (8594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:41,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3375 states to 3375 states and 8594 transitions. [2021-07-09 17:00:41,911 INFO L78 Accepts]: Start accepts. Automaton has 3375 states and 8594 transitions. Word has length 119 [2021-07-09 17:00:41,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:41,911 INFO L482 AbstractCegarLoop]: Abstraction has 3375 states and 8594 transitions. [2021-07-09 17:00:41,911 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:41,911 INFO L276 IsEmpty]: Start isEmpty. Operand 3375 states and 8594 transitions. [2021-07-09 17:00:41,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:41,915 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:41,915 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:41,915 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-07-09 17:00:41,915 INFO L430 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:41,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:41,916 INFO L82 PathProgramCache]: Analyzing trace with hash 50855405, now seen corresponding path program 96 times [2021-07-09 17:00:41,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:41,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882112960] [2021-07-09 17:00:41,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:42,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:42,690 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:42,690 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882112960] [2021-07-09 17:00:42,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882112960] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:42,690 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:42,690 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:00:42,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985933386] [2021-07-09 17:00:42,690 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:00:42,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:42,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:00:42,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:00:42,691 INFO L87 Difference]: Start difference. First operand 3375 states and 8594 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:43,917 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-09 17:00:44,211 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-07-09 17:00:45,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:45,351 INFO L93 Difference]: Finished difference Result 3591 states and 9002 transitions. [2021-07-09 17:00:45,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 17:00:45,352 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:45,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:45,356 INFO L225 Difference]: With dead ends: 3591 [2021-07-09 17:00:45,356 INFO L226 Difference]: Without dead ends: 3357 [2021-07-09 17:00:45,357 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 2463.6ms TimeCoverageRelationStatistics Valid=480, Invalid=2382, Unknown=0, NotChecked=0, Total=2862 [2021-07-09 17:00:45,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3357 states. [2021-07-09 17:00:45,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3357 to 3351. [2021-07-09 17:00:45,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3350 states have (on average 2.551044776119403) internal successors, (8546), 3350 states have internal predecessors, (8546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:45,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 8546 transitions. [2021-07-09 17:00:45,402 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 8546 transitions. Word has length 119 [2021-07-09 17:00:45,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:45,402 INFO L482 AbstractCegarLoop]: Abstraction has 3351 states and 8546 transitions. [2021-07-09 17:00:45,402 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:45,402 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 8546 transitions. [2021-07-09 17:00:45,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:45,406 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:45,406 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:45,406 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-07-09 17:00:45,406 INFO L430 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:45,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:45,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1512238849, now seen corresponding path program 97 times [2021-07-09 17:00:45,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:45,407 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225338381] [2021-07-09 17:00:45,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:46,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:46,089 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:46,089 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225338381] [2021-07-09 17:00:46,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225338381] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:46,089 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:46,089 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:00:46,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665950042] [2021-07-09 17:00:46,089 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:00:46,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:46,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:00:46,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:00:46,090 INFO L87 Difference]: Start difference. First operand 3351 states and 8546 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:47,433 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-07-09 17:00:48,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:48,783 INFO L93 Difference]: Finished difference Result 3621 states and 9073 transitions. [2021-07-09 17:00:48,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 17:00:48,783 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:48,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:48,788 INFO L225 Difference]: With dead ends: 3621 [2021-07-09 17:00:48,788 INFO L226 Difference]: Without dead ends: 3391 [2021-07-09 17:00:48,789 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 2429.5ms TimeCoverageRelationStatistics Valid=467, Invalid=2395, Unknown=0, NotChecked=0, Total=2862 [2021-07-09 17:00:48,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3391 states. [2021-07-09 17:00:48,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3391 to 3336. [2021-07-09 17:00:48,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3335 states have (on average 2.550824587706147) internal successors, (8507), 3335 states have internal predecessors, (8507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:48,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 8507 transitions. [2021-07-09 17:00:48,837 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 8507 transitions. Word has length 119 [2021-07-09 17:00:48,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:48,837 INFO L482 AbstractCegarLoop]: Abstraction has 3336 states and 8507 transitions. [2021-07-09 17:00:48,837 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:48,837 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 8507 transitions. [2021-07-09 17:00:48,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:48,841 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:48,841 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:48,841 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-07-09 17:00:48,841 INFO L430 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:48,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:48,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1570320461, now seen corresponding path program 98 times [2021-07-09 17:00:48,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:48,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027156178] [2021-07-09 17:00:48,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:49,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:49,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:49,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027156178] [2021-07-09 17:00:49,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027156178] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:49,548 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:49,548 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:00:49,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937317865] [2021-07-09 17:00:49,549 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:00:49,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:49,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:00:49,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:00:49,549 INFO L87 Difference]: Start difference. First operand 3336 states and 8507 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:50,896 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-07-09 17:00:51,053 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-07-09 17:00:52,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:52,108 INFO L93 Difference]: Finished difference Result 3507 states and 8829 transitions. [2021-07-09 17:00:52,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 17:00:52,109 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:52,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:52,112 INFO L225 Difference]: With dead ends: 3507 [2021-07-09 17:00:52,112 INFO L226 Difference]: Without dead ends: 3197 [2021-07-09 17:00:52,113 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 2321.1ms TimeCoverageRelationStatistics Valid=462, Invalid=2294, Unknown=0, NotChecked=0, Total=2756 [2021-07-09 17:00:52,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2021-07-09 17:00:52,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 3197. [2021-07-09 17:00:52,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3197 states, 3196 states have (on average 2.573529411764706) internal successors, (8225), 3196 states have internal predecessors, (8225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:52,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 8225 transitions. [2021-07-09 17:00:52,150 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 8225 transitions. Word has length 119 [2021-07-09 17:00:52,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:52,150 INFO L482 AbstractCegarLoop]: Abstraction has 3197 states and 8225 transitions. [2021-07-09 17:00:52,150 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:52,150 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 8225 transitions. [2021-07-09 17:00:52,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:52,154 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:52,154 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:52,154 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-07-09 17:00:52,154 INFO L430 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:52,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:52,154 INFO L82 PathProgramCache]: Analyzing trace with hash 2039112753, now seen corresponding path program 99 times [2021-07-09 17:00:52,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:52,154 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901043460] [2021-07-09 17:00:52,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:52,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:52,802 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:52,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901043460] [2021-07-09 17:00:52,802 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901043460] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:52,802 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:52,802 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:00:52,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089230344] [2021-07-09 17:00:52,802 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:00:52,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:52,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:00:52,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:00:52,803 INFO L87 Difference]: Start difference. First operand 3197 states and 8225 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:53,981 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2021-07-09 17:00:54,137 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-07-09 17:00:54,358 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-07-09 17:00:55,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:55,302 INFO L93 Difference]: Finished difference Result 3429 states and 8678 transitions. [2021-07-09 17:00:55,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:00:55,303 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:55,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:55,307 INFO L225 Difference]: With dead ends: 3429 [2021-07-09 17:00:55,307 INFO L226 Difference]: Without dead ends: 3147 [2021-07-09 17:00:55,307 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 2215.7ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:00:55,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3147 states. [2021-07-09 17:00:55,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3147 to 3099. [2021-07-09 17:00:55,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3099 states, 3098 states have (on average 2.5961910910264687) internal successors, (8043), 3098 states have internal predecessors, (8043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:55,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3099 states to 3099 states and 8043 transitions. [2021-07-09 17:00:55,341 INFO L78 Accepts]: Start accepts. Automaton has 3099 states and 8043 transitions. Word has length 119 [2021-07-09 17:00:55,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:55,341 INFO L482 AbstractCegarLoop]: Abstraction has 3099 states and 8043 transitions. [2021-07-09 17:00:55,341 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:55,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3099 states and 8043 transitions. [2021-07-09 17:00:55,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:55,344 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:55,344 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:55,344 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-07-09 17:00:55,344 INFO L430 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:55,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:55,344 INFO L82 PathProgramCache]: Analyzing trace with hash -144760637, now seen corresponding path program 100 times [2021-07-09 17:00:55,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:55,344 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437254790] [2021-07-09 17:00:55,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:56,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:56,053 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:56,053 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437254790] [2021-07-09 17:00:56,053 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437254790] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:56,053 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:56,053 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:00:56,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814182898] [2021-07-09 17:00:56,053 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:00:56,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:56,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:00:56,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:00:56,054 INFO L87 Difference]: Start difference. First operand 3099 states and 8043 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:57,357 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-07-09 17:00:57,592 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-07-09 17:00:58,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:58,602 INFO L93 Difference]: Finished difference Result 3366 states and 8553 transitions. [2021-07-09 17:00:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:00:58,602 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:00:58,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:58,606 INFO L225 Difference]: With dead ends: 3366 [2021-07-09 17:00:58,606 INFO L226 Difference]: Without dead ends: 3164 [2021-07-09 17:00:58,606 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 2300.6ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:00:58,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3164 states. [2021-07-09 17:00:58,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3164 to 3117. [2021-07-09 17:00:58,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3117 states, 3116 states have (on average 2.5924261874197687) internal successors, (8078), 3116 states have internal predecessors, (8078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:58,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 8078 transitions. [2021-07-09 17:00:58,642 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 8078 transitions. Word has length 119 [2021-07-09 17:00:58,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:58,642 INFO L482 AbstractCegarLoop]: Abstraction has 3117 states and 8078 transitions. [2021-07-09 17:00:58,642 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:58,642 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 8078 transitions. [2021-07-09 17:00:58,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:00:58,646 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:58,646 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:58,646 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-07-09 17:00:58,646 INFO L430 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:58,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:58,646 INFO L82 PathProgramCache]: Analyzing trace with hash 374600133, now seen corresponding path program 101 times [2021-07-09 17:00:58,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:58,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816538162] [2021-07-09 17:00:58,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:59,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:59,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:59,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816538162] [2021-07-09 17:00:59,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816538162] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:59,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:00:59,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:00:59,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388482980] [2021-07-09 17:00:59,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:00:59,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:59,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:00:59,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:00:59,351 INFO L87 Difference]: Start difference. First operand 3117 states and 8078 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:00,727 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-09 17:01:00,902 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-07-09 17:01:02,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:02,097 INFO L93 Difference]: Finished difference Result 3353 states and 8524 transitions. [2021-07-09 17:01:02,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 17:01:02,097 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:02,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:02,101 INFO L225 Difference]: With dead ends: 3353 [2021-07-09 17:01:02,102 INFO L226 Difference]: Without dead ends: 3161 [2021-07-09 17:01:02,102 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 2491.6ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-07-09 17:01:02,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2021-07-09 17:01:02,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 3121. [2021-07-09 17:01:02,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 2.591025641025641) internal successors, (8084), 3120 states have internal predecessors, (8084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:02,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 8084 transitions. [2021-07-09 17:01:02,145 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 8084 transitions. Word has length 119 [2021-07-09 17:01:02,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:02,145 INFO L482 AbstractCegarLoop]: Abstraction has 3121 states and 8084 transitions. [2021-07-09 17:01:02,145 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:02,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 8084 transitions. [2021-07-09 17:01:02,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:02,149 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:02,149 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:02,149 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-07-09 17:01:02,149 INFO L430 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:02,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:02,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1940515359, now seen corresponding path program 102 times [2021-07-09 17:01:02,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:02,150 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434298910] [2021-07-09 17:01:02,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:02,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:02,873 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:02,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434298910] [2021-07-09 17:01:02,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434298910] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:02,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:02,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:02,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349460706] [2021-07-09 17:01:02,873 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:02,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:02,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:02,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:02,874 INFO L87 Difference]: Start difference. First operand 3121 states and 8084 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:03,912 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2021-07-09 17:01:04,235 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-09 17:01:05,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:05,498 INFO L93 Difference]: Finished difference Result 3449 states and 8730 transitions. [2021-07-09 17:01:05,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 17:01:05,499 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:05,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:05,503 INFO L225 Difference]: With dead ends: 3449 [2021-07-09 17:01:05,503 INFO L226 Difference]: Without dead ends: 3222 [2021-07-09 17:01:05,503 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 2414.6ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-07-09 17:01:05,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3222 states. [2021-07-09 17:01:05,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3222 to 3106. [2021-07-09 17:01:05,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3106 states, 3105 states have (on average 2.5948470209339773) internal successors, (8057), 3105 states have internal predecessors, (8057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:05,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3106 states to 3106 states and 8057 transitions. [2021-07-09 17:01:05,544 INFO L78 Accepts]: Start accepts. Automaton has 3106 states and 8057 transitions. Word has length 119 [2021-07-09 17:01:05,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:05,545 INFO L482 AbstractCegarLoop]: Abstraction has 3106 states and 8057 transitions. [2021-07-09 17:01:05,545 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:05,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3106 states and 8057 transitions. [2021-07-09 17:01:05,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:05,548 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:05,548 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:05,548 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-07-09 17:01:05,548 INFO L430 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:05,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:05,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1899470451, now seen corresponding path program 103 times [2021-07-09 17:01:05,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:05,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765310239] [2021-07-09 17:01:05,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:06,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:06,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:06,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765310239] [2021-07-09 17:01:06,205 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765310239] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:06,205 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:06,205 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:06,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147856897] [2021-07-09 17:01:06,206 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:06,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:06,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:06,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:06,206 INFO L87 Difference]: Start difference. First operand 3106 states and 8057 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:07,423 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-07-09 17:01:07,629 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-07-09 17:01:08,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:08,548 INFO L93 Difference]: Finished difference Result 3321 states and 8444 transitions. [2021-07-09 17:01:08,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:01:08,548 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:08,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:08,553 INFO L225 Difference]: With dead ends: 3321 [2021-07-09 17:01:08,553 INFO L226 Difference]: Without dead ends: 3130 [2021-07-09 17:01:08,553 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2122.4ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:01:08,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3130 states. [2021-07-09 17:01:08,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3130 to 3102. [2021-07-09 17:01:08,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3102 states, 3101 states have (on average 2.5952918413415027) internal successors, (8048), 3101 states have internal predecessors, (8048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:08,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3102 states to 3102 states and 8048 transitions. [2021-07-09 17:01:08,596 INFO L78 Accepts]: Start accepts. Automaton has 3102 states and 8048 transitions. Word has length 119 [2021-07-09 17:01:08,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:08,596 INFO L482 AbstractCegarLoop]: Abstraction has 3102 states and 8048 transitions. [2021-07-09 17:01:08,596 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:08,596 INFO L276 IsEmpty]: Start isEmpty. Operand 3102 states and 8048 transitions. [2021-07-09 17:01:08,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:08,600 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:08,600 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:08,600 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-07-09 17:01:08,600 INFO L430 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:08,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:08,600 INFO L82 PathProgramCache]: Analyzing trace with hash 167118335, now seen corresponding path program 104 times [2021-07-09 17:01:08,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:08,600 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174980033] [2021-07-09 17:01:08,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:09,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:09,255 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:09,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174980033] [2021-07-09 17:01:09,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174980033] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:09,255 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:09,255 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:09,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81111672] [2021-07-09 17:01:09,255 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:09,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:09,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:09,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:09,256 INFO L87 Difference]: Start difference. First operand 3102 states and 8048 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:10,428 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2021-07-09 17:01:10,590 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-07-09 17:01:10,837 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-07-09 17:01:11,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:11,839 INFO L93 Difference]: Finished difference Result 3330 states and 8478 transitions. [2021-07-09 17:01:11,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:01:11,840 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:11,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:11,844 INFO L225 Difference]: With dead ends: 3330 [2021-07-09 17:01:11,844 INFO L226 Difference]: Without dead ends: 3128 [2021-07-09 17:01:11,845 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 2284.6ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:01:11,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3128 states. [2021-07-09 17:01:11,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3128 to 3093. [2021-07-09 17:01:11,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3093 states, 3092 states have (on average 2.6009055627425615) internal successors, (8042), 3092 states have internal predecessors, (8042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:11,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 8042 transitions. [2021-07-09 17:01:11,887 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 8042 transitions. Word has length 119 [2021-07-09 17:01:11,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:11,887 INFO L482 AbstractCegarLoop]: Abstraction has 3093 states and 8042 transitions. [2021-07-09 17:01:11,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:11,887 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 8042 transitions. [2021-07-09 17:01:11,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:11,890 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:11,890 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:11,890 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-07-09 17:01:11,891 INFO L430 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:11,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:11,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1293526919, now seen corresponding path program 105 times [2021-07-09 17:01:11,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:11,891 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126615890] [2021-07-09 17:01:11,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:12,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:12,626 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:12,626 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126615890] [2021-07-09 17:01:12,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126615890] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:12,626 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:12,626 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:12,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787719003] [2021-07-09 17:01:12,627 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:12,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:12,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:12,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:12,627 INFO L87 Difference]: Start difference. First operand 3093 states and 8042 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:13,937 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-09 17:01:14,145 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-09 17:01:15,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:15,103 INFO L93 Difference]: Finished difference Result 3293 states and 8403 transitions. [2021-07-09 17:01:15,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:01:15,103 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:15,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:15,108 INFO L225 Difference]: With dead ends: 3293 [2021-07-09 17:01:15,108 INFO L226 Difference]: Without dead ends: 3104 [2021-07-09 17:01:15,108 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2223.3ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:01:15,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2021-07-09 17:01:15,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3098. [2021-07-09 17:01:15,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3098 states, 3097 states have (on average 2.598320955763642) internal successors, (8047), 3097 states have internal predecessors, (8047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:15,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3098 states to 3098 states and 8047 transitions. [2021-07-09 17:01:15,151 INFO L78 Accepts]: Start accepts. Automaton has 3098 states and 8047 transitions. Word has length 119 [2021-07-09 17:01:15,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:15,151 INFO L482 AbstractCegarLoop]: Abstraction has 3098 states and 8047 transitions. [2021-07-09 17:01:15,151 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:15,151 INFO L276 IsEmpty]: Start isEmpty. Operand 3098 states and 8047 transitions. [2021-07-09 17:01:15,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:15,154 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:15,154 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:15,155 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-07-09 17:01:15,155 INFO L430 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:15,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:15,155 INFO L82 PathProgramCache]: Analyzing trace with hash 636827677, now seen corresponding path program 106 times [2021-07-09 17:01:15,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:15,155 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903093799] [2021-07-09 17:01:15,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:15,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:15,849 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:15,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903093799] [2021-07-09 17:01:15,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903093799] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:15,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:15,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:15,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334883163] [2021-07-09 17:01:15,850 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:15,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:15,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:15,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:15,850 INFO L87 Difference]: Start difference. First operand 3098 states and 8047 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:17,084 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2021-07-09 17:01:18,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:18,291 INFO L93 Difference]: Finished difference Result 3377 states and 8567 transitions. [2021-07-09 17:01:18,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 17:01:18,291 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:18,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:18,295 INFO L225 Difference]: With dead ends: 3377 [2021-07-09 17:01:18,295 INFO L226 Difference]: Without dead ends: 3180 [2021-07-09 17:01:18,296 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 2234.8ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-07-09 17:01:18,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2021-07-09 17:01:18,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 3101. [2021-07-09 17:01:18,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3101 states, 3100 states have (on average 2.5970967741935485) internal successors, (8051), 3100 states have internal predecessors, (8051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:18,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3101 states to 3101 states and 8051 transitions. [2021-07-09 17:01:18,334 INFO L78 Accepts]: Start accepts. Automaton has 3101 states and 8051 transitions. Word has length 119 [2021-07-09 17:01:18,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:18,335 INFO L482 AbstractCegarLoop]: Abstraction has 3101 states and 8051 transitions. [2021-07-09 17:01:18,335 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:18,335 INFO L276 IsEmpty]: Start isEmpty. Operand 3101 states and 8051 transitions. [2021-07-09 17:01:18,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:18,338 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:18,338 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:18,338 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-07-09 17:01:18,338 INFO L430 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:18,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:18,338 INFO L82 PathProgramCache]: Analyzing trace with hash 223059281, now seen corresponding path program 107 times [2021-07-09 17:01:18,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:18,338 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912005288] [2021-07-09 17:01:18,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:19,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:19,015 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:19,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912005288] [2021-07-09 17:01:19,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912005288] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:19,015 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:19,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:19,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599243673] [2021-07-09 17:01:19,016 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:19,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:19,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:19,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:19,016 INFO L87 Difference]: Start difference. First operand 3101 states and 8051 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:20,159 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-07-09 17:01:20,480 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-09 17:01:21,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:21,425 INFO L93 Difference]: Finished difference Result 3281 states and 8374 transitions. [2021-07-09 17:01:21,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:01:21,425 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:21,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:21,430 INFO L225 Difference]: With dead ends: 3281 [2021-07-09 17:01:21,430 INFO L226 Difference]: Without dead ends: 3075 [2021-07-09 17:01:21,430 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2182.2ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:01:21,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3075 states. [2021-07-09 17:01:21,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3075 to 3075. [2021-07-09 17:01:21,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3075 states, 3074 states have (on average 2.6008458035133377) internal successors, (7995), 3074 states have internal predecessors, (7995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:21,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3075 states to 3075 states and 7995 transitions. [2021-07-09 17:01:21,471 INFO L78 Accepts]: Start accepts. Automaton has 3075 states and 7995 transitions. Word has length 119 [2021-07-09 17:01:21,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:21,471 INFO L482 AbstractCegarLoop]: Abstraction has 3075 states and 7995 transitions. [2021-07-09 17:01:21,471 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:21,472 INFO L276 IsEmpty]: Start isEmpty. Operand 3075 states and 7995 transitions. [2021-07-09 17:01:21,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:21,475 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:21,475 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:21,475 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-07-09 17:01:21,475 INFO L430 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:21,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:21,475 INFO L82 PathProgramCache]: Analyzing trace with hash -2120060335, now seen corresponding path program 108 times [2021-07-09 17:01:21,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:21,475 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3157466] [2021-07-09 17:01:21,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:22,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:22,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:22,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3157466] [2021-07-09 17:01:22,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3157466] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:22,219 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:22,219 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:22,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405815882] [2021-07-09 17:01:22,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:22,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:22,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:22,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:22,220 INFO L87 Difference]: Start difference. First operand 3075 states and 7995 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:23,348 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-07-09 17:01:23,512 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-07-09 17:01:23,754 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-07-09 17:01:24,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:24,741 INFO L93 Difference]: Finished difference Result 3450 states and 8778 transitions. [2021-07-09 17:01:24,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:01:24,741 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:24,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:24,745 INFO L225 Difference]: With dead ends: 3450 [2021-07-09 17:01:24,746 INFO L226 Difference]: Without dead ends: 3248 [2021-07-09 17:01:24,746 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2286.1ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:01:24,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3248 states. [2021-07-09 17:01:24,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3248 to 3120. [2021-07-09 17:01:24,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 2.5960243667842255) internal successors, (8097), 3119 states have internal predecessors, (8097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:24,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 8097 transitions. [2021-07-09 17:01:24,789 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 8097 transitions. Word has length 119 [2021-07-09 17:01:24,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:24,789 INFO L482 AbstractCegarLoop]: Abstraction has 3120 states and 8097 transitions. [2021-07-09 17:01:24,789 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:24,789 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 8097 transitions. [2021-07-09 17:01:24,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:24,792 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:24,792 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:24,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-07-09 17:01:24,792 INFO L430 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:24,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:24,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1600699565, now seen corresponding path program 109 times [2021-07-09 17:01:24,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:24,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068669332] [2021-07-09 17:01:24,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:25,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:25,543 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:25,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068669332] [2021-07-09 17:01:25,543 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068669332] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:25,543 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:25,543 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:25,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392273603] [2021-07-09 17:01:25,543 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:25,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:25,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:25,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:25,544 INFO L87 Difference]: Start difference. First operand 3120 states and 8097 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:26,729 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-07-09 17:01:26,956 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-09 17:01:27,116 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-07-09 17:01:28,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:28,335 INFO L93 Difference]: Finished difference Result 3445 states and 8765 transitions. [2021-07-09 17:01:28,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 17:01:28,336 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:28,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:28,340 INFO L225 Difference]: With dead ends: 3445 [2021-07-09 17:01:28,340 INFO L226 Difference]: Without dead ends: 3253 [2021-07-09 17:01:28,340 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2479.4ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-07-09 17:01:28,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3253 states. [2021-07-09 17:01:28,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3253 to 3124. [2021-07-09 17:01:28,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 2.5946205571565804) internal successors, (8103), 3123 states have internal predecessors, (8103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:28,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 8103 transitions. [2021-07-09 17:01:28,377 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 8103 transitions. Word has length 119 [2021-07-09 17:01:28,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:28,377 INFO L482 AbstractCegarLoop]: Abstraction has 3124 states and 8103 transitions. [2021-07-09 17:01:28,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:28,377 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 8103 transitions. [2021-07-09 17:01:28,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:28,380 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:28,380 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:28,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-07-09 17:01:28,380 INFO L430 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:28,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:28,381 INFO L82 PathProgramCache]: Analyzing trace with hash 379152239, now seen corresponding path program 110 times [2021-07-09 17:01:28,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:28,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023194467] [2021-07-09 17:01:28,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:29,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:29,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:29,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023194467] [2021-07-09 17:01:29,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023194467] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:29,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:29,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:29,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960983147] [2021-07-09 17:01:29,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:29,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:29,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:29,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:29,137 INFO L87 Difference]: Start difference. First operand 3124 states and 8103 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:30,496 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-09 17:01:31,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:31,769 INFO L93 Difference]: Finished difference Result 3458 states and 8796 transitions. [2021-07-09 17:01:31,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 17:01:31,769 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:31,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:31,773 INFO L225 Difference]: With dead ends: 3458 [2021-07-09 17:01:31,773 INFO L226 Difference]: Without dead ends: 3231 [2021-07-09 17:01:31,774 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 2401.1ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-07-09 17:01:31,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3231 states. [2021-07-09 17:01:31,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3231 to 3109. [2021-07-09 17:01:31,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 3108 states have (on average 2.5952380952380953) internal successors, (8066), 3108 states have internal predecessors, (8066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:31,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 8066 transitions. [2021-07-09 17:01:31,814 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 8066 transitions. Word has length 119 [2021-07-09 17:01:31,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:31,814 INFO L482 AbstractCegarLoop]: Abstraction has 3109 states and 8066 transitions. [2021-07-09 17:01:31,814 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:31,814 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 8066 transitions. [2021-07-09 17:01:31,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:31,817 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:31,817 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:31,817 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-07-09 17:01:31,817 INFO L430 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:31,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:31,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1257337423, now seen corresponding path program 111 times [2021-07-09 17:01:31,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:31,818 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549222682] [2021-07-09 17:01:31,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:32,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:32,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:32,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549222682] [2021-07-09 17:01:32,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549222682] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:32,549 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:32,549 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:32,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586472643] [2021-07-09 17:01:32,549 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:32,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:32,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:32,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:32,549 INFO L87 Difference]: Start difference. First operand 3109 states and 8066 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:34,012 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-09 17:01:34,169 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-07-09 17:01:35,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:35,450 INFO L93 Difference]: Finished difference Result 3468 states and 8821 transitions. [2021-07-09 17:01:35,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 17:01:35,450 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:35,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:35,454 INFO L225 Difference]: With dead ends: 3468 [2021-07-09 17:01:35,455 INFO L226 Difference]: Without dead ends: 3276 [2021-07-09 17:01:35,455 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 2604.3ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-07-09 17:01:35,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3276 states. [2021-07-09 17:01:35,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3276 to 3119. [2021-07-09 17:01:35,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 2.5936497754971137) internal successors, (8087), 3118 states have internal predecessors, (8087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:35,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 8087 transitions. [2021-07-09 17:01:35,495 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 8087 transitions. Word has length 119 [2021-07-09 17:01:35,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:35,495 INFO L482 AbstractCegarLoop]: Abstraction has 3119 states and 8087 transitions. [2021-07-09 17:01:35,495 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:35,495 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 8087 transitions. [2021-07-09 17:01:35,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:35,499 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:35,499 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:35,499 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-07-09 17:01:35,499 INFO L430 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:35,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:35,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1057778069, now seen corresponding path program 112 times [2021-07-09 17:01:35,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:35,499 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823590354] [2021-07-09 17:01:35,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:36,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:36,248 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:36,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823590354] [2021-07-09 17:01:36,248 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823590354] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:36,248 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:36,248 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:36,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259361373] [2021-07-09 17:01:36,248 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:36,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:36,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:36,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:36,249 INFO L87 Difference]: Start difference. First operand 3119 states and 8087 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:37,682 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-09 17:01:38,040 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-07-09 17:01:39,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:39,102 INFO L93 Difference]: Finished difference Result 3489 states and 8868 transitions. [2021-07-09 17:01:39,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 17:01:39,102 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:39,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:39,106 INFO L225 Difference]: With dead ends: 3489 [2021-07-09 17:01:39,107 INFO L226 Difference]: Without dead ends: 3272 [2021-07-09 17:01:39,107 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 2585.5ms TimeCoverageRelationStatistics Valid=483, Invalid=2487, Unknown=0, NotChecked=0, Total=2970 [2021-07-09 17:01:39,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3272 states. [2021-07-09 17:01:39,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3272 to 3115. [2021-07-09 17:01:39,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 3114 states have (on average 2.5937700706486835) internal successors, (8077), 3114 states have internal predecessors, (8077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:39,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 8077 transitions. [2021-07-09 17:01:39,148 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 8077 transitions. Word has length 119 [2021-07-09 17:01:39,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:39,148 INFO L482 AbstractCegarLoop]: Abstraction has 3115 states and 8077 transitions. [2021-07-09 17:01:39,148 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:39,148 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 8077 transitions. [2021-07-09 17:01:39,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:39,151 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:39,151 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:39,151 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-07-09 17:01:39,152 INFO L430 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:39,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:39,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1927565425, now seen corresponding path program 113 times [2021-07-09 17:01:39,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:39,152 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234020196] [2021-07-09 17:01:39,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:39,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:39,957 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:39,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234020196] [2021-07-09 17:01:39,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234020196] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:39,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:39,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:39,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44367646] [2021-07-09 17:01:39,958 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:39,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:39,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:39,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:39,958 INFO L87 Difference]: Start difference. First operand 3115 states and 8077 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:41,614 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-07-09 17:01:42,199 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-07-09 17:01:43,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:43,042 INFO L93 Difference]: Finished difference Result 3715 states and 9330 transitions. [2021-07-09 17:01:43,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 17:01:43,043 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:43,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:43,048 INFO L225 Difference]: With dead ends: 3715 [2021-07-09 17:01:43,048 INFO L226 Difference]: Without dead ends: 3385 [2021-07-09 17:01:43,049 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 2788.4ms TimeCoverageRelationStatistics Valid=547, Invalid=2759, Unknown=0, NotChecked=0, Total=3306 [2021-07-09 17:01:43,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2021-07-09 17:01:43,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 3040. [2021-07-09 17:01:43,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3040 states, 3039 states have (on average 2.59822309970385) internal successors, (7896), 3039 states have internal predecessors, (7896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:43,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3040 states to 3040 states and 7896 transitions. [2021-07-09 17:01:43,100 INFO L78 Accepts]: Start accepts. Automaton has 3040 states and 7896 transitions. Word has length 119 [2021-07-09 17:01:43,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:43,100 INFO L482 AbstractCegarLoop]: Abstraction has 3040 states and 7896 transitions. [2021-07-09 17:01:43,101 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:43,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3040 states and 7896 transitions. [2021-07-09 17:01:43,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:43,103 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:43,103 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:43,103 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-07-09 17:01:43,103 INFO L430 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:43,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:43,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1044605369, now seen corresponding path program 114 times [2021-07-09 17:01:43,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:43,104 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511810813] [2021-07-09 17:01:43,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:43,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:43,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:43,792 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:43,792 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511810813] [2021-07-09 17:01:43,792 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511810813] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:43,792 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:43,792 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:43,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837642322] [2021-07-09 17:01:43,792 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:43,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:43,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:43,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:43,793 INFO L87 Difference]: Start difference. First operand 3040 states and 7896 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:44,985 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-07-09 17:01:45,228 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-07-09 17:01:46,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:46,195 INFO L93 Difference]: Finished difference Result 3330 states and 8474 transitions. [2021-07-09 17:01:46,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:01:46,195 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:46,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:46,200 INFO L225 Difference]: With dead ends: 3330 [2021-07-09 17:01:46,200 INFO L226 Difference]: Without dead ends: 3133 [2021-07-09 17:01:46,200 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 2205.7ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:01:46,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3133 states. [2021-07-09 17:01:46,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3133 to 3030. [2021-07-09 17:01:46,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 2.5988775173324528) internal successors, (7872), 3029 states have internal predecessors, (7872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:46,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 7872 transitions. [2021-07-09 17:01:46,238 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 7872 transitions. Word has length 119 [2021-07-09 17:01:46,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:46,238 INFO L482 AbstractCegarLoop]: Abstraction has 3030 states and 7872 transitions. [2021-07-09 17:01:46,239 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:46,239 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 7872 transitions. [2021-07-09 17:01:46,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:46,241 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:46,241 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:46,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-07-09 17:01:46,242 INFO L430 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:46,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:46,242 INFO L82 PathProgramCache]: Analyzing trace with hash -620934893, now seen corresponding path program 115 times [2021-07-09 17:01:46,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:46,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063621363] [2021-07-09 17:01:46,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:46,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:46,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:46,920 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:46,921 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063621363] [2021-07-09 17:01:46,921 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063621363] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:46,921 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:46,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:46,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955048225] [2021-07-09 17:01:46,921 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:46,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:46,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:46,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:46,921 INFO L87 Difference]: Start difference. First operand 3030 states and 7872 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:48,199 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-07-09 17:01:48,433 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-07-09 17:01:49,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:49,394 INFO L93 Difference]: Finished difference Result 3312 states and 8421 transitions. [2021-07-09 17:01:49,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:01:49,395 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:49,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:49,398 INFO L225 Difference]: With dead ends: 3312 [2021-07-09 17:01:49,399 INFO L226 Difference]: Without dead ends: 3110 [2021-07-09 17:01:49,399 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2208.8ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:01:49,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2021-07-09 17:01:49,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 3042. [2021-07-09 17:01:49,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3042 states, 3041 states have (on average 2.594541269319303) internal successors, (7890), 3041 states have internal predecessors, (7890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:49,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 7890 transitions. [2021-07-09 17:01:49,435 INFO L78 Accepts]: Start accepts. Automaton has 3042 states and 7890 transitions. Word has length 119 [2021-07-09 17:01:49,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:49,435 INFO L482 AbstractCegarLoop]: Abstraction has 3042 states and 7890 transitions. [2021-07-09 17:01:49,435 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:49,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3042 states and 7890 transitions. [2021-07-09 17:01:49,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:49,439 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:49,439 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:49,439 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-07-09 17:01:49,439 INFO L430 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:49,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:49,439 INFO L82 PathProgramCache]: Analyzing trace with hash -101574123, now seen corresponding path program 116 times [2021-07-09 17:01:49,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:49,439 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256711902] [2021-07-09 17:01:49,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:50,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:50,124 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:50,124 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256711902] [2021-07-09 17:01:50,124 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256711902] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:50,124 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:50,125 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:50,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672130572] [2021-07-09 17:01:50,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:50,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:50,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:50,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:50,125 INFO L87 Difference]: Start difference. First operand 3042 states and 7890 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:51,147 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2021-07-09 17:01:51,274 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-07-09 17:01:51,477 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-09 17:01:51,634 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-07-09 17:01:52,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:52,795 INFO L93 Difference]: Finished difference Result 3295 states and 8384 transitions. [2021-07-09 17:01:52,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 17:01:52,795 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:52,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:52,799 INFO L225 Difference]: With dead ends: 3295 [2021-07-09 17:01:52,799 INFO L226 Difference]: Without dead ends: 3103 [2021-07-09 17:01:52,799 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2426.2ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-07-09 17:01:52,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2021-07-09 17:01:52,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 3044. [2021-07-09 17:01:52,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3044 states, 3043 states have (on average 2.593164640157739) internal successors, (7891), 3043 states have internal predecessors, (7891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:52,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3044 states to 3044 states and 7891 transitions. [2021-07-09 17:01:52,837 INFO L78 Accepts]: Start accepts. Automaton has 3044 states and 7891 transitions. Word has length 119 [2021-07-09 17:01:52,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:52,837 INFO L482 AbstractCegarLoop]: Abstraction has 3044 states and 7891 transitions. [2021-07-09 17:01:52,837 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:52,837 INFO L276 IsEmpty]: Start isEmpty. Operand 3044 states and 7891 transitions. [2021-07-09 17:01:52,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:52,840 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:52,840 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:52,840 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-07-09 17:01:52,840 INFO L430 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:52,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:52,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1878277681, now seen corresponding path program 117 times [2021-07-09 17:01:52,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:52,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630414744] [2021-07-09 17:01:52,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:53,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:53,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:53,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630414744] [2021-07-09 17:01:53,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630414744] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:53,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:53,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:53,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697054297] [2021-07-09 17:01:53,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:53,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:53,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:53,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:53,537 INFO L87 Difference]: Start difference. First operand 3044 states and 7891 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:54,864 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-09 17:01:56,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:56,057 INFO L93 Difference]: Finished difference Result 3363 states and 8526 transitions. [2021-07-09 17:01:56,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 17:01:56,057 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:56,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:56,061 INFO L225 Difference]: With dead ends: 3363 [2021-07-09 17:01:56,061 INFO L226 Difference]: Without dead ends: 3136 [2021-07-09 17:01:56,062 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 2317.8ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-07-09 17:01:56,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3136 states. [2021-07-09 17:01:56,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3136 to 3019. [2021-07-09 17:01:56,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 3018 states have (on average 2.597746852220013) internal successors, (7840), 3018 states have internal predecessors, (7840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:56,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 7840 transitions. [2021-07-09 17:01:56,097 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 7840 transitions. Word has length 119 [2021-07-09 17:01:56,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:56,098 INFO L482 AbstractCegarLoop]: Abstraction has 3019 states and 7840 transitions. [2021-07-09 17:01:56,098 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:56,098 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 7840 transitions. [2021-07-09 17:01:56,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:56,100 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:56,100 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:56,100 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-07-09 17:01:56,100 INFO L430 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:56,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:56,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1919322589, now seen corresponding path program 118 times [2021-07-09 17:01:56,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:56,101 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667084062] [2021-07-09 17:01:56,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:56,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:56,758 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:56,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667084062] [2021-07-09 17:01:56,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667084062] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:56,758 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:56,758 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:56,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114107637] [2021-07-09 17:01:56,759 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:56,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:56,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:56,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:56,759 INFO L87 Difference]: Start difference. First operand 3019 states and 7840 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:57,812 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-07-09 17:01:57,962 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-07-09 17:01:58,176 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-07-09 17:01:59,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:59,119 INFO L93 Difference]: Finished difference Result 3257 states and 8288 transitions. [2021-07-09 17:01:59,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:01:59,119 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:01:59,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:59,123 INFO L225 Difference]: With dead ends: 3257 [2021-07-09 17:01:59,123 INFO L226 Difference]: Without dead ends: 3066 [2021-07-09 17:01:59,123 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 2146.8ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:01:59,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3066 states. [2021-07-09 17:01:59,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3066 to 3015. [2021-07-09 17:01:59,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3015 states, 3014 states have (on average 2.5982083609820834) internal successors, (7831), 3014 states have internal predecessors, (7831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:59,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3015 states to 3015 states and 7831 transitions. [2021-07-09 17:01:59,163 INFO L78 Accepts]: Start accepts. Automaton has 3015 states and 7831 transitions. Word has length 119 [2021-07-09 17:01:59,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:59,163 INFO L482 AbstractCegarLoop]: Abstraction has 3015 states and 7831 transitions. [2021-07-09 17:01:59,163 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:59,163 INFO L276 IsEmpty]: Start isEmpty. Operand 3015 states and 7831 transitions. [2021-07-09 17:01:59,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:01:59,167 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:59,167 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:59,167 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-07-09 17:01:59,167 INFO L430 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:59,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:59,167 INFO L82 PathProgramCache]: Analyzing trace with hash -309055921, now seen corresponding path program 119 times [2021-07-09 17:01:59,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:59,167 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524789010] [2021-07-09 17:01:59,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:59,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:59,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:59,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524789010] [2021-07-09 17:01:59,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524789010] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:59,828 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:01:59,828 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:01:59,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620781804] [2021-07-09 17:01:59,828 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:59,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:59,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:59,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:59,828 INFO L87 Difference]: Start difference. First operand 3015 states and 7831 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:00,972 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2021-07-09 17:02:01,130 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-07-09 17:02:01,356 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-07-09 17:02:02,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:02,335 INFO L93 Difference]: Finished difference Result 3244 states and 8274 transitions. [2021-07-09 17:02:02,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:02:02,336 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:02:02,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:02,339 INFO L225 Difference]: With dead ends: 3244 [2021-07-09 17:02:02,339 INFO L226 Difference]: Without dead ends: 3042 [2021-07-09 17:02:02,340 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2240.1ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:02:02,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2021-07-09 17:02:02,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 2946. [2021-07-09 17:02:02,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2945 states have (on average 2.6159592529711375) internal successors, (7704), 2945 states have internal predecessors, (7704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:02,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 7704 transitions. [2021-07-09 17:02:02,377 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 7704 transitions. Word has length 119 [2021-07-09 17:02:02,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:02,377 INFO L482 AbstractCegarLoop]: Abstraction has 2946 states and 7704 transitions. [2021-07-09 17:02:02,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:02,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 7704 transitions. [2021-07-09 17:02:02,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:02:02,380 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:02,380 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:02,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-07-09 17:02:02,380 INFO L430 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:02,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:02,380 INFO L82 PathProgramCache]: Analyzing trace with hash 817352663, now seen corresponding path program 120 times [2021-07-09 17:02:02,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:02,380 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284516528] [2021-07-09 17:02:02,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:03,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:03,025 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:03,025 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284516528] [2021-07-09 17:02:03,025 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284516528] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:03,026 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:03,026 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:02:03,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116009764] [2021-07-09 17:02:03,026 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:02:03,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:03,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:02:03,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:02:03,026 INFO L87 Difference]: Start difference. First operand 2946 states and 7704 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:04,248 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-09 17:02:04,450 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-09 17:02:05,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:05,377 INFO L93 Difference]: Finished difference Result 3177 states and 8142 transitions. [2021-07-09 17:02:05,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:02:05,377 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:02:05,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:05,381 INFO L225 Difference]: With dead ends: 3177 [2021-07-09 17:02:05,382 INFO L226 Difference]: Without dead ends: 2988 [2021-07-09 17:02:05,382 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 2104.3ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:02:05,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2021-07-09 17:02:05,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 2951. [2021-07-09 17:02:05,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2951 states, 2950 states have (on average 2.613220338983051) internal successors, (7709), 2950 states have internal predecessors, (7709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:05,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2951 states to 2951 states and 7709 transitions. [2021-07-09 17:02:05,422 INFO L78 Accepts]: Start accepts. Automaton has 2951 states and 7709 transitions. Word has length 119 [2021-07-09 17:02:05,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:05,422 INFO L482 AbstractCegarLoop]: Abstraction has 2951 states and 7709 transitions. [2021-07-09 17:02:05,422 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:05,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2951 states and 7709 transitions. [2021-07-09 17:02:05,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:02:05,425 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:05,425 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:05,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-07-09 17:02:05,425 INFO L430 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:05,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:05,425 INFO L82 PathProgramCache]: Analyzing trace with hash 160653421, now seen corresponding path program 121 times [2021-07-09 17:02:05,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:05,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178107832] [2021-07-09 17:02:05,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:06,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:06,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:06,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178107832] [2021-07-09 17:02:06,079 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178107832] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:06,079 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:06,079 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:02:06,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231930582] [2021-07-09 17:02:06,080 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:02:06,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:06,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:02:06,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:02:06,080 INFO L87 Difference]: Start difference. First operand 2951 states and 7709 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:08,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:08,478 INFO L93 Difference]: Finished difference Result 3261 states and 8306 transitions. [2021-07-09 17:02:08,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 17:02:08,479 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:02:08,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:08,482 INFO L225 Difference]: With dead ends: 3261 [2021-07-09 17:02:08,483 INFO L226 Difference]: Without dead ends: 3064 [2021-07-09 17:02:08,483 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 2187.0ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-07-09 17:02:08,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3064 states. [2021-07-09 17:02:08,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3064 to 2954. [2021-07-09 17:02:08,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2954 states, 2953 states have (on average 2.6119200812732815) internal successors, (7713), 2953 states have internal predecessors, (7713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:08,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2954 states to 2954 states and 7713 transitions. [2021-07-09 17:02:08,522 INFO L78 Accepts]: Start accepts. Automaton has 2954 states and 7713 transitions. Word has length 119 [2021-07-09 17:02:08,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:08,522 INFO L482 AbstractCegarLoop]: Abstraction has 2954 states and 7713 transitions. [2021-07-09 17:02:08,522 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:08,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2954 states and 7713 transitions. [2021-07-09 17:02:08,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:02:08,525 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:08,525 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:08,525 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-07-09 17:02:08,525 INFO L430 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:08,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:08,525 INFO L82 PathProgramCache]: Analyzing trace with hash -253114975, now seen corresponding path program 122 times [2021-07-09 17:02:08,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:08,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888146698] [2021-07-09 17:02:08,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:09,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:09,204 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:09,204 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888146698] [2021-07-09 17:02:09,204 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888146698] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:09,204 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:09,204 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:02:09,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957984525] [2021-07-09 17:02:09,204 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:02:09,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:09,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:02:09,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:02:09,205 INFO L87 Difference]: Start difference. First operand 2954 states and 7713 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:10,672 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-07-09 17:02:11,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:11,671 INFO L93 Difference]: Finished difference Result 3165 states and 8113 transitions. [2021-07-09 17:02:11,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:02:11,672 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:02:11,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:11,676 INFO L225 Difference]: With dead ends: 3165 [2021-07-09 17:02:11,676 INFO L226 Difference]: Without dead ends: 2923 [2021-07-09 17:02:11,676 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2241.7ms TimeCoverageRelationStatistics Valid=444, Invalid=2208, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:02:11,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2021-07-09 17:02:11,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 2892. [2021-07-09 17:02:11,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2892 states, 2891 states have (on average 2.6205465236942236) internal successors, (7576), 2891 states have internal predecessors, (7576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:11,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2892 states to 2892 states and 7576 transitions. [2021-07-09 17:02:11,714 INFO L78 Accepts]: Start accepts. Automaton has 2892 states and 7576 transitions. Word has length 119 [2021-07-09 17:02:11,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:11,714 INFO L482 AbstractCegarLoop]: Abstraction has 2892 states and 7576 transitions. [2021-07-09 17:02:11,714 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:11,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2892 states and 7576 transitions. [2021-07-09 17:02:11,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:02:11,717 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:11,717 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:11,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-07-09 17:02:11,717 INFO L430 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:11,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:11,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1731590673, now seen corresponding path program 123 times [2021-07-09 17:02:11,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:11,718 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658540563] [2021-07-09 17:02:11,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:11,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:11,914 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:11,914 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658540563] [2021-07-09 17:02:11,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658540563] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:11,914 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:11,914 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 17:02:11,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46832681] [2021-07-09 17:02:11,914 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 17:02:11,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:11,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 17:02:11,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-07-09 17:02:11,915 INFO L87 Difference]: Start difference. First operand 2892 states and 7576 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:12,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:12,234 INFO L93 Difference]: Finished difference Result 3587 states and 9091 transitions. [2021-07-09 17:02:12,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 17:02:12,234 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:02:12,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:12,240 INFO L225 Difference]: With dead ends: 3587 [2021-07-09 17:02:12,240 INFO L226 Difference]: Without dead ends: 3587 [2021-07-09 17:02:12,240 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 297.3ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-07-09 17:02:12,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3587 states. [2021-07-09 17:02:12,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3587 to 2958. [2021-07-09 17:02:12,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2958 states, 2957 states have (on average 2.604666892120392) internal successors, (7702), 2957 states have internal predecessors, (7702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:12,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 7702 transitions. [2021-07-09 17:02:12,285 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 7702 transitions. Word has length 119 [2021-07-09 17:02:12,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:12,285 INFO L482 AbstractCegarLoop]: Abstraction has 2958 states and 7702 transitions. [2021-07-09 17:02:12,285 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:12,285 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 7702 transitions. [2021-07-09 17:02:12,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:02:12,288 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:12,288 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:12,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-07-09 17:02:12,288 INFO L430 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:12,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:12,289 INFO L82 PathProgramCache]: Analyzing trace with hash 149250413, now seen corresponding path program 124 times [2021-07-09 17:02:12,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:12,289 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014695682] [2021-07-09 17:02:12,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:12,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:12,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:12,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014695682] [2021-07-09 17:02:12,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014695682] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:12,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:12,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:02:12,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431601242] [2021-07-09 17:02:12,943 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:02:12,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:12,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:02:12,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:02:12,944 INFO L87 Difference]: Start difference. First operand 2958 states and 7702 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:13,917 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-07-09 17:02:14,148 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-07-09 17:02:16,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:16,179 INFO L93 Difference]: Finished difference Result 4673 states and 12043 transitions. [2021-07-09 17:02:16,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 17:02:16,179 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:02:16,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:16,184 INFO L225 Difference]: With dead ends: 4673 [2021-07-09 17:02:16,184 INFO L226 Difference]: Without dead ends: 4503 [2021-07-09 17:02:16,184 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2763.3ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 17:02:16,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4503 states. [2021-07-09 17:02:16,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4503 to 3474. [2021-07-09 17:02:16,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3474 states, 3473 states have (on average 2.632882234379499) internal successors, (9144), 3473 states have internal predecessors, (9144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:16,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3474 states to 3474 states and 9144 transitions. [2021-07-09 17:02:16,230 INFO L78 Accepts]: Start accepts. Automaton has 3474 states and 9144 transitions. Word has length 119 [2021-07-09 17:02:16,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:16,230 INFO L482 AbstractCegarLoop]: Abstraction has 3474 states and 9144 transitions. [2021-07-09 17:02:16,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:16,230 INFO L276 IsEmpty]: Start isEmpty. Operand 3474 states and 9144 transitions. [2021-07-09 17:02:16,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:02:16,234 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:16,234 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:16,234 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-07-09 17:02:16,234 INFO L430 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:16,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:16,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1153097611, now seen corresponding path program 125 times [2021-07-09 17:02:16,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:16,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751038206] [2021-07-09 17:02:16,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:16,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:16,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:16,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751038206] [2021-07-09 17:02:16,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751038206] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:16,870 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:16,870 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:02:16,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112975238] [2021-07-09 17:02:16,870 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:02:16,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:16,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:02:16,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:02:16,871 INFO L87 Difference]: Start difference. First operand 3474 states and 9144 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:17,842 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-07-09 17:02:18,075 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-09 17:02:20,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:20,116 INFO L93 Difference]: Finished difference Result 5006 states and 12937 transitions. [2021-07-09 17:02:20,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 17:02:20,116 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:02:20,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:20,122 INFO L225 Difference]: With dead ends: 5006 [2021-07-09 17:02:20,122 INFO L226 Difference]: Without dead ends: 4615 [2021-07-09 17:02:20,123 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2810.7ms TimeCoverageRelationStatistics Valid=618, Invalid=2922, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 17:02:20,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4615 states. [2021-07-09 17:02:20,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4615 to 3534. [2021-07-09 17:02:20,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3534 states, 3533 states have (on average 2.618737616756298) internal successors, (9252), 3533 states have internal predecessors, (9252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:20,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3534 states to 3534 states and 9252 transitions. [2021-07-09 17:02:20,176 INFO L78 Accepts]: Start accepts. Automaton has 3534 states and 9252 transitions. Word has length 119 [2021-07-09 17:02:20,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:20,176 INFO L482 AbstractCegarLoop]: Abstraction has 3534 states and 9252 transitions. [2021-07-09 17:02:20,176 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:20,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3534 states and 9252 transitions. [2021-07-09 17:02:20,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:02:20,180 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:20,180 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:20,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-07-09 17:02:20,180 INFO L430 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:20,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:20,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1933444321, now seen corresponding path program 126 times [2021-07-09 17:02:20,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:20,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380977706] [2021-07-09 17:02:20,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:20,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:20,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:20,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380977706] [2021-07-09 17:02:20,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380977706] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:20,834 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:20,834 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:02:20,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337579955] [2021-07-09 17:02:20,834 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:02:20,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:20,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:02:20,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:02:20,835 INFO L87 Difference]: Start difference. First operand 3534 states and 9252 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:21,850 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-07-09 17:02:22,092 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-09 17:02:24,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:24,335 INFO L93 Difference]: Finished difference Result 4721 states and 12130 transitions. [2021-07-09 17:02:24,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-09 17:02:24,336 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:02:24,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:24,342 INFO L225 Difference]: With dead ends: 4721 [2021-07-09 17:02:24,342 INFO L226 Difference]: Without dead ends: 4291 [2021-07-09 17:02:24,343 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 2977.8ms TimeCoverageRelationStatistics Valid=639, Invalid=3143, Unknown=0, NotChecked=0, Total=3782 [2021-07-09 17:02:24,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4291 states. [2021-07-09 17:02:24,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4291 to 3210. [2021-07-09 17:02:24,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3210 states, 3209 states have (on average 2.6132751636023683) internal successors, (8386), 3209 states have internal predecessors, (8386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:24,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3210 states to 3210 states and 8386 transitions. [2021-07-09 17:02:24,398 INFO L78 Accepts]: Start accepts. Automaton has 3210 states and 8386 transitions. Word has length 119 [2021-07-09 17:02:24,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:24,398 INFO L482 AbstractCegarLoop]: Abstraction has 3210 states and 8386 transitions. [2021-07-09 17:02:24,398 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:24,398 INFO L276 IsEmpty]: Start isEmpty. Operand 3210 states and 8386 transitions. [2021-07-09 17:02:24,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:02:24,402 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:24,402 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:24,402 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-07-09 17:02:24,402 INFO L430 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:24,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:24,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1756421371, now seen corresponding path program 127 times [2021-07-09 17:02:24,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:24,402 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083639449] [2021-07-09 17:02:24,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:25,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:25,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:25,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083639449] [2021-07-09 17:02:25,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083639449] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:25,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:25,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:02:25,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345102266] [2021-07-09 17:02:25,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:02:25,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:25,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:02:25,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:02:25,063 INFO L87 Difference]: Start difference. First operand 3210 states and 8386 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:26,049 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-07-09 17:02:26,282 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-07-09 17:02:26,735 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-07-09 17:02:28,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:28,346 INFO L93 Difference]: Finished difference Result 3888 states and 9973 transitions. [2021-07-09 17:02:28,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 17:02:28,346 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:02:28,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:28,351 INFO L225 Difference]: With dead ends: 3888 [2021-07-09 17:02:28,351 INFO L226 Difference]: Without dead ends: 3704 [2021-07-09 17:02:28,351 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 2798.6ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 17:02:28,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2021-07-09 17:02:28,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3206. [2021-07-09 17:02:28,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3206 states, 3205 states have (on average 2.612792511700468) internal successors, (8374), 3205 states have internal predecessors, (8374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:28,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3206 states to 3206 states and 8374 transitions. [2021-07-09 17:02:28,392 INFO L78 Accepts]: Start accepts. Automaton has 3206 states and 8374 transitions. Word has length 119 [2021-07-09 17:02:28,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:28,392 INFO L482 AbstractCegarLoop]: Abstraction has 3206 states and 8374 transitions. [2021-07-09 17:02:28,392 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:28,392 INFO L276 IsEmpty]: Start isEmpty. Operand 3206 states and 8374 transitions. [2021-07-09 17:02:28,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:02:28,396 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:28,396 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:28,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-07-09 17:02:28,396 INFO L430 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:28,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:28,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1834230611, now seen corresponding path program 128 times [2021-07-09 17:02:28,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:28,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265433146] [2021-07-09 17:02:28,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:29,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:29,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:29,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265433146] [2021-07-09 17:02:29,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265433146] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:29,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:29,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:02:29,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112162141] [2021-07-09 17:02:29,140 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:02:29,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:29,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:02:29,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:02:29,140 INFO L87 Difference]: Start difference. First operand 3206 states and 8374 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:30,118 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-07-09 17:02:30,502 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 65 [2021-07-09 17:02:30,698 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-07-09 17:02:32,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:32,198 INFO L93 Difference]: Finished difference Result 3727 states and 9535 transitions. [2021-07-09 17:02:32,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 17:02:32,198 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:02:32,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:32,203 INFO L225 Difference]: With dead ends: 3727 [2021-07-09 17:02:32,203 INFO L226 Difference]: Without dead ends: 3513 [2021-07-09 17:02:32,203 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2731.7ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-07-09 17:02:32,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3513 states. [2021-07-09 17:02:32,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3513 to 3202. [2021-07-09 17:02:32,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3202 states, 3201 states have (on average 2.611059044048735) internal successors, (8358), 3201 states have internal predecessors, (8358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:32,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3202 states to 3202 states and 8358 transitions. [2021-07-09 17:02:32,245 INFO L78 Accepts]: Start accepts. Automaton has 3202 states and 8358 transitions. Word has length 119 [2021-07-09 17:02:32,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:32,245 INFO L482 AbstractCegarLoop]: Abstraction has 3202 states and 8358 transitions. [2021-07-09 17:02:32,245 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:32,245 INFO L276 IsEmpty]: Start isEmpty. Operand 3202 states and 8358 transitions. [2021-07-09 17:02:32,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:02:32,248 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:32,248 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:32,248 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-07-09 17:02:32,248 INFO L430 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:32,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:32,249 INFO L82 PathProgramCache]: Analyzing trace with hash 2027836207, now seen corresponding path program 129 times [2021-07-09 17:02:32,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:32,249 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100805357] [2021-07-09 17:02:32,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:32,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:32,904 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:32,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100805357] [2021-07-09 17:02:32,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100805357] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:32,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:32,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:02:32,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481198049] [2021-07-09 17:02:32,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:02:32,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:32,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:02:32,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:02:32,905 INFO L87 Difference]: Start difference. First operand 3202 states and 8358 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:34,042 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-07-09 17:02:34,235 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-07-09 17:02:34,508 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-07-09 17:02:35,198 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-07-09 17:02:36,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:36,277 INFO L93 Difference]: Finished difference Result 3883 states and 10001 transitions. [2021-07-09 17:02:36,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 17:02:36,277 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:02:36,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:36,284 INFO L225 Difference]: With dead ends: 3883 [2021-07-09 17:02:36,284 INFO L226 Difference]: Without dead ends: 3753 [2021-07-09 17:02:36,284 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 2760.5ms TimeCoverageRelationStatistics Valid=487, Invalid=2483, Unknown=0, NotChecked=0, Total=2970 [2021-07-09 17:02:36,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2021-07-09 17:02:36,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3370. [2021-07-09 17:02:36,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3370 states, 3369 states have (on average 2.604927278124072) internal successors, (8776), 3369 states have internal predecessors, (8776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:36,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3370 states to 3370 states and 8776 transitions. [2021-07-09 17:02:36,330 INFO L78 Accepts]: Start accepts. Automaton has 3370 states and 8776 transitions. Word has length 119 [2021-07-09 17:02:36,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:36,331 INFO L482 AbstractCegarLoop]: Abstraction has 3370 states and 8776 transitions. [2021-07-09 17:02:36,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:36,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3370 states and 8776 transitions. [2021-07-09 17:02:36,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:02:36,334 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:36,334 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:36,334 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-07-09 17:02:36,334 INFO L430 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:36,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:36,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1263283891, now seen corresponding path program 130 times [2021-07-09 17:02:36,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:36,335 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391949081] [2021-07-09 17:02:36,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:36,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:36,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391949081] [2021-07-09 17:02:36,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391949081] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:36,996 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:36,997 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:02:36,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962812592] [2021-07-09 17:02:36,997 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:02:36,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:36,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:02:36,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:02:36,997 INFO L87 Difference]: Start difference. First operand 3370 states and 8776 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:38,214 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-07-09 17:02:39,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:39,879 INFO L93 Difference]: Finished difference Result 4090 states and 10479 transitions. [2021-07-09 17:02:39,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 17:02:39,880 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:02:39,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:39,885 INFO L225 Difference]: With dead ends: 4090 [2021-07-09 17:02:39,885 INFO L226 Difference]: Without dead ends: 3839 [2021-07-09 17:02:39,886 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 2471.3ms TimeCoverageRelationStatistics Valid=518, Invalid=2562, Unknown=0, NotChecked=0, Total=3080 [2021-07-09 17:02:39,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2021-07-09 17:02:39,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 3406. [2021-07-09 17:02:39,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 3405 states have (on average 2.595007342143906) internal successors, (8836), 3405 states have internal predecessors, (8836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:39,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 8836 transitions. [2021-07-09 17:02:39,931 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 8836 transitions. Word has length 119 [2021-07-09 17:02:39,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:39,931 INFO L482 AbstractCegarLoop]: Abstraction has 3406 states and 8836 transitions. [2021-07-09 17:02:39,931 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:39,932 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 8836 transitions. [2021-07-09 17:02:39,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:02:39,935 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:39,935 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:39,935 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-07-09 17:02:39,935 INFO L430 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:39,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:39,935 INFO L82 PathProgramCache]: Analyzing trace with hash -54858527, now seen corresponding path program 131 times [2021-07-09 17:02:39,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:39,936 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511897552] [2021-07-09 17:02:39,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:40,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:40,614 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:40,614 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511897552] [2021-07-09 17:02:40,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511897552] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:40,615 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:40,615 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:02:40,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005564620] [2021-07-09 17:02:40,615 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:02:40,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:40,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:02:40,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:02:40,615 INFO L87 Difference]: Start difference. First operand 3406 states and 8836 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:41,773 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-07-09 17:02:43,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:43,425 INFO L93 Difference]: Finished difference Result 3921 states and 10022 transitions. [2021-07-09 17:02:43,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-09 17:02:43,426 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:02:43,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:43,430 INFO L225 Difference]: With dead ends: 3921 [2021-07-09 17:02:43,430 INFO L226 Difference]: Without dead ends: 3635 [2021-07-09 17:02:43,430 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 2517.4ms TimeCoverageRelationStatistics Valid=520, Invalid=2672, Unknown=0, NotChecked=0, Total=3192 [2021-07-09 17:02:43,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3635 states. [2021-07-09 17:02:43,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3635 to 3202. [2021-07-09 17:02:43,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3202 states, 3201 states have (on average 2.6073102155576384) internal successors, (8346), 3201 states have internal predecessors, (8346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:43,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3202 states to 3202 states and 8346 transitions. [2021-07-09 17:02:43,474 INFO L78 Accepts]: Start accepts. Automaton has 3202 states and 8346 transitions. Word has length 119 [2021-07-09 17:02:43,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:43,474 INFO L482 AbstractCegarLoop]: Abstraction has 3202 states and 8346 transitions. [2021-07-09 17:02:43,474 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:43,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3202 states and 8346 transitions. [2021-07-09 17:02:43,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:02:43,478 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:43,478 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:43,478 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-07-09 17:02:43,478 INFO L430 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:43,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:43,478 INFO L82 PathProgramCache]: Analyzing trace with hash -659960131, now seen corresponding path program 132 times [2021-07-09 17:02:43,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:43,478 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414527127] [2021-07-09 17:02:43,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:44,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:44,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414527127] [2021-07-09 17:02:44,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414527127] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:44,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:44,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:02:44,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238073611] [2021-07-09 17:02:44,113 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:02:44,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:44,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:02:44,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:02:44,114 INFO L87 Difference]: Start difference. First operand 3202 states and 8346 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:45,265 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-07-09 17:02:45,764 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-07-09 17:02:46,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:46,844 INFO L93 Difference]: Finished difference Result 3610 states and 9302 transitions. [2021-07-09 17:02:46,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 17:02:46,844 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:02:46,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:46,848 INFO L225 Difference]: With dead ends: 3610 [2021-07-09 17:02:46,848 INFO L226 Difference]: Without dead ends: 3466 [2021-07-09 17:02:46,849 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 2459.0ms TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2021-07-09 17:02:46,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3466 states. [2021-07-09 17:02:46,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3466 to 3190. [2021-07-09 17:02:46,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3190 states, 3189 states have (on average 2.6095954844778926) internal successors, (8322), 3189 states have internal predecessors, (8322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:46,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3190 states to 3190 states and 8322 transitions. [2021-07-09 17:02:46,891 INFO L78 Accepts]: Start accepts. Automaton has 3190 states and 8322 transitions. Word has length 119 [2021-07-09 17:02:46,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:46,891 INFO L482 AbstractCegarLoop]: Abstraction has 3190 states and 8322 transitions. [2021-07-09 17:02:46,891 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:46,891 INFO L276 IsEmpty]: Start isEmpty. Operand 3190 states and 8322 transitions. [2021-07-09 17:02:46,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:02:46,894 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:46,895 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:46,895 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-07-09 17:02:46,895 INFO L430 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:46,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:46,895 INFO L82 PathProgramCache]: Analyzing trace with hash 2132749643, now seen corresponding path program 133 times [2021-07-09 17:02:46,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:46,895 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607716666] [2021-07-09 17:02:46,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:47,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:47,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:47,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607716666] [2021-07-09 17:02:47,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607716666] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:47,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:47,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:02:47,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945486083] [2021-07-09 17:02:47,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:02:47,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:47,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:02:47,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:02:47,538 INFO L87 Difference]: Start difference. First operand 3190 states and 8322 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:50,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:50,351 INFO L93 Difference]: Finished difference Result 4434 states and 11379 transitions. [2021-07-09 17:02:50,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 17:02:50,351 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:02:50,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:50,358 INFO L225 Difference]: With dead ends: 4434 [2021-07-09 17:02:50,358 INFO L226 Difference]: Without dead ends: 4304 [2021-07-09 17:02:50,359 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 2361.6ms TimeCoverageRelationStatistics Valid=477, Invalid=2493, Unknown=0, NotChecked=0, Total=2970 [2021-07-09 17:02:50,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4304 states. [2021-07-09 17:02:50,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 3334. [2021-07-09 17:02:50,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 3333 states have (on average 2.607860786078608) internal successors, (8692), 3333 states have internal predecessors, (8692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:50,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 8692 transitions. [2021-07-09 17:02:50,411 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 8692 transitions. Word has length 119 [2021-07-09 17:02:50,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:50,411 INFO L482 AbstractCegarLoop]: Abstraction has 3334 states and 8692 transitions. [2021-07-09 17:02:50,411 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:50,411 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 8692 transitions. [2021-07-09 17:02:50,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:02:50,415 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:50,415 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:50,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-07-09 17:02:50,415 INFO L430 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:50,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:50,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1158370455, now seen corresponding path program 134 times [2021-07-09 17:02:50,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:50,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459147209] [2021-07-09 17:02:50,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:51,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:51,069 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:51,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459147209] [2021-07-09 17:02:51,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459147209] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:51,069 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:51,069 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:02:51,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394761622] [2021-07-09 17:02:51,069 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:02:51,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:51,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:02:51,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:02:51,070 INFO L87 Difference]: Start difference. First operand 3334 states and 8692 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:51,859 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-07-09 17:02:53,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:53,903 INFO L93 Difference]: Finished difference Result 4641 states and 11857 transitions. [2021-07-09 17:02:53,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 17:02:53,904 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:02:53,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:53,910 INFO L225 Difference]: With dead ends: 4641 [2021-07-09 17:02:53,910 INFO L226 Difference]: Without dead ends: 4390 [2021-07-09 17:02:53,911 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 2459.9ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-07-09 17:02:53,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4390 states. [2021-07-09 17:02:53,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4390 to 3370. [2021-07-09 17:02:53,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3370 states, 3369 states have (on average 2.597803502523004) internal successors, (8752), 3369 states have internal predecessors, (8752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:53,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3370 states to 3370 states and 8752 transitions. [2021-07-09 17:02:53,961 INFO L78 Accepts]: Start accepts. Automaton has 3370 states and 8752 transitions. Word has length 119 [2021-07-09 17:02:53,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:53,962 INFO L482 AbstractCegarLoop]: Abstraction has 3370 states and 8752 transitions. [2021-07-09 17:02:53,962 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:53,962 INFO L276 IsEmpty]: Start isEmpty. Operand 3370 states and 8752 transitions. [2021-07-09 17:02:53,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:02:53,965 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:53,965 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:53,965 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-07-09 17:02:53,965 INFO L430 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:53,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:53,966 INFO L82 PathProgramCache]: Analyzing trace with hash 50054909, now seen corresponding path program 135 times [2021-07-09 17:02:53,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:53,966 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316053716] [2021-07-09 17:02:53,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:54,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:54,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:54,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316053716] [2021-07-09 17:02:54,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316053716] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:54,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:54,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:02:54,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294991940] [2021-07-09 17:02:54,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:02:54,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:54,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:02:54,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:02:54,723 INFO L87 Difference]: Start difference. First operand 3370 states and 8752 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:57,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:57,687 INFO L93 Difference]: Finished difference Result 4472 states and 11400 transitions. [2021-07-09 17:02:57,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-09 17:02:57,687 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:02:57,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:57,693 INFO L225 Difference]: With dead ends: 4472 [2021-07-09 17:02:57,693 INFO L226 Difference]: Without dead ends: 4186 [2021-07-09 17:02:57,694 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 2610.7ms TimeCoverageRelationStatistics Valid=509, Invalid=2683, Unknown=0, NotChecked=0, Total=3192 [2021-07-09 17:02:57,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4186 states. [2021-07-09 17:02:57,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4186 to 3166. [2021-07-09 17:02:57,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3166 states, 3165 states have (on average 2.595260663507109) internal successors, (8214), 3165 states have internal predecessors, (8214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:57,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 8214 transitions. [2021-07-09 17:02:57,742 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 8214 transitions. Word has length 119 [2021-07-09 17:02:57,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:57,743 INFO L482 AbstractCegarLoop]: Abstraction has 3166 states and 8214 transitions. [2021-07-09 17:02:57,743 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:57,743 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 8214 transitions. [2021-07-09 17:02:57,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:02:57,746 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:57,746 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:57,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-07-09 17:02:57,746 INFO L430 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:57,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:57,747 INFO L82 PathProgramCache]: Analyzing trace with hash 706986393, now seen corresponding path program 136 times [2021-07-09 17:02:57,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:57,747 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347709787] [2021-07-09 17:02:57,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:58,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:58,407 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:58,407 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347709787] [2021-07-09 17:02:58,407 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347709787] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:02:58,407 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:02:58,407 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:02:58,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928254435] [2021-07-09 17:02:58,408 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:02:58,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:58,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:02:58,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:02:58,408 INFO L87 Difference]: Start difference. First operand 3166 states and 8214 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:01,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:01,492 INFO L93 Difference]: Finished difference Result 4340 states and 10992 transitions. [2021-07-09 17:03:01,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 17:03:01,492 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:01,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:01,497 INFO L225 Difference]: With dead ends: 4340 [2021-07-09 17:03:01,497 INFO L226 Difference]: Without dead ends: 4135 [2021-07-09 17:03:01,497 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 2540.4ms TimeCoverageRelationStatistics Valid=520, Invalid=2786, Unknown=0, NotChecked=0, Total=3306 [2021-07-09 17:03:01,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4135 states. [2021-07-09 17:03:01,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4135 to 3106. [2021-07-09 17:03:01,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3106 states, 3105 states have (on average 2.6067632850241544) internal successors, (8094), 3105 states have internal predecessors, (8094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:01,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3106 states to 3106 states and 8094 transitions. [2021-07-09 17:03:01,540 INFO L78 Accepts]: Start accepts. Automaton has 3106 states and 8094 transitions. Word has length 119 [2021-07-09 17:03:01,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:01,541 INFO L482 AbstractCegarLoop]: Abstraction has 3106 states and 8094 transitions. [2021-07-09 17:03:01,541 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:01,541 INFO L276 IsEmpty]: Start isEmpty. Operand 3106 states and 8094 transitions. [2021-07-09 17:03:01,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:01,544 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:01,544 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:01,544 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-07-09 17:03:01,544 INFO L430 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:01,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:01,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1908947921, now seen corresponding path program 137 times [2021-07-09 17:03:01,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:01,544 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820344498] [2021-07-09 17:03:01,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:02,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:02,192 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:02,192 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820344498] [2021-07-09 17:03:02,192 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820344498] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:02,192 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:02,192 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:03:02,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877280528] [2021-07-09 17:03:02,193 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:03:02,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:02,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:03:02,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:03:02,193 INFO L87 Difference]: Start difference. First operand 3106 states and 8094 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:03,797 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-07-09 17:03:05,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:05,000 INFO L93 Difference]: Finished difference Result 3560 states and 9158 transitions. [2021-07-09 17:03:05,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 17:03:05,001 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:05,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:05,005 INFO L225 Difference]: With dead ends: 3560 [2021-07-09 17:03:05,005 INFO L226 Difference]: Without dead ends: 3428 [2021-07-09 17:03:05,006 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 2430.1ms TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2021-07-09 17:03:05,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3428 states. [2021-07-09 17:03:05,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3428 to 3108. [2021-07-09 17:03:05,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3108 states, 3107 states have (on average 2.6060508529127775) internal successors, (8097), 3107 states have internal predecessors, (8097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:05,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3108 states to 3108 states and 8097 transitions. [2021-07-09 17:03:05,049 INFO L78 Accepts]: Start accepts. Automaton has 3108 states and 8097 transitions. Word has length 119 [2021-07-09 17:03:05,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:05,049 INFO L482 AbstractCegarLoop]: Abstraction has 3108 states and 8097 transitions. [2021-07-09 17:03:05,049 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:05,049 INFO L276 IsEmpty]: Start isEmpty. Operand 3108 states and 8097 transitions. [2021-07-09 17:03:05,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:05,053 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:05,053 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:05,053 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-07-09 17:03:05,053 INFO L430 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:05,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:05,053 INFO L82 PathProgramCache]: Analyzing trace with hash 242127883, now seen corresponding path program 138 times [2021-07-09 17:03:05,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:05,053 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865197283] [2021-07-09 17:03:05,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:05,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:05,765 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:05,765 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865197283] [2021-07-09 17:03:05,765 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865197283] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:05,765 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:05,765 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:03:05,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826517697] [2021-07-09 17:03:05,765 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:03:05,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:05,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:03:05,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:03:05,765 INFO L87 Difference]: Start difference. First operand 3108 states and 8097 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:08,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:08,670 INFO L93 Difference]: Finished difference Result 3737 states and 9511 transitions. [2021-07-09 17:03:08,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 17:03:08,670 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:08,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:08,675 INFO L225 Difference]: With dead ends: 3737 [2021-07-09 17:03:08,675 INFO L226 Difference]: Without dead ends: 3578 [2021-07-09 17:03:08,675 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 2572.0ms TimeCoverageRelationStatistics Valid=559, Invalid=2747, Unknown=0, NotChecked=0, Total=3306 [2021-07-09 17:03:08,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3578 states. [2021-07-09 17:03:08,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3578 to 3094. [2021-07-09 17:03:08,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3094 states, 3093 states have (on average 2.609117361784675) internal successors, (8070), 3093 states have internal predecessors, (8070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:08,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 8070 transitions. [2021-07-09 17:03:08,718 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 8070 transitions. Word has length 119 [2021-07-09 17:03:08,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:08,719 INFO L482 AbstractCegarLoop]: Abstraction has 3094 states and 8070 transitions. [2021-07-09 17:03:08,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:08,719 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 8070 transitions. [2021-07-09 17:03:08,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:08,722 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:08,722 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:08,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-07-09 17:03:08,723 INFO L430 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:08,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:08,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1898146437, now seen corresponding path program 139 times [2021-07-09 17:03:08,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:08,723 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841832275] [2021-07-09 17:03:08,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:09,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:09,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:09,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841832275] [2021-07-09 17:03:09,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841832275] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:09,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:09,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:03:09,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477236683] [2021-07-09 17:03:09,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:03:09,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:09,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:03:09,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:03:09,431 INFO L87 Difference]: Start difference. First operand 3094 states and 8070 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:10,802 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 65 [2021-07-09 17:03:11,027 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-07-09 17:03:12,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:12,570 INFO L93 Difference]: Finished difference Result 3508 states and 8926 transitions. [2021-07-09 17:03:12,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 17:03:12,571 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:12,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:12,575 INFO L225 Difference]: With dead ends: 3508 [2021-07-09 17:03:12,575 INFO L226 Difference]: Without dead ends: 3330 [2021-07-09 17:03:12,576 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2687.6ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-07-09 17:03:12,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2021-07-09 17:03:12,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3102. [2021-07-09 17:03:12,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3102 states, 3101 states have (on average 2.6069009996775234) internal successors, (8084), 3101 states have internal predecessors, (8084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:12,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3102 states to 3102 states and 8084 transitions. [2021-07-09 17:03:12,615 INFO L78 Accepts]: Start accepts. Automaton has 3102 states and 8084 transitions. Word has length 119 [2021-07-09 17:03:12,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:12,615 INFO L482 AbstractCegarLoop]: Abstraction has 3102 states and 8084 transitions. [2021-07-09 17:03:12,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:12,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3102 states and 8084 transitions. [2021-07-09 17:03:12,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:12,620 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:12,620 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:12,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-07-09 17:03:12,620 INFO L430 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:12,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:12,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1378785667, now seen corresponding path program 140 times [2021-07-09 17:03:12,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:12,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952788317] [2021-07-09 17:03:12,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:13,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:13,317 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:13,317 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952788317] [2021-07-09 17:03:13,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952788317] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:13,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:13,318 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:03:13,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303030204] [2021-07-09 17:03:13,318 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:03:13,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:13,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:03:13,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:03:13,318 INFO L87 Difference]: Start difference. First operand 3102 states and 8084 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:14,669 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-07-09 17:03:14,823 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-07-09 17:03:15,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:15,998 INFO L93 Difference]: Finished difference Result 3334 states and 8556 transitions. [2021-07-09 17:03:15,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 17:03:15,999 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:15,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:16,003 INFO L225 Difference]: With dead ends: 3334 [2021-07-09 17:03:16,003 INFO L226 Difference]: Without dead ends: 3202 [2021-07-09 17:03:16,004 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2392.8ms TimeCoverageRelationStatistics Valid=481, Invalid=2381, Unknown=0, NotChecked=0, Total=2862 [2021-07-09 17:03:16,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3202 states. [2021-07-09 17:03:16,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3202 to 3104. [2021-07-09 17:03:16,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3103 states have (on average 2.606187560425395) internal successors, (8087), 3103 states have internal predecessors, (8087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:16,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 8087 transitions. [2021-07-09 17:03:16,056 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 8087 transitions. Word has length 119 [2021-07-09 17:03:16,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:16,057 INFO L482 AbstractCegarLoop]: Abstraction has 3104 states and 8087 transitions. [2021-07-09 17:03:16,057 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:16,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 8087 transitions. [2021-07-09 17:03:16,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:16,060 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:16,060 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:16,060 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-07-09 17:03:16,060 INFO L430 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:16,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:16,060 INFO L82 PathProgramCache]: Analyzing trace with hash 601066137, now seen corresponding path program 141 times [2021-07-09 17:03:16,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:16,060 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51139590] [2021-07-09 17:03:16,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:16,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:16,766 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:16,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51139590] [2021-07-09 17:03:16,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51139590] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:16,766 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:16,766 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:03:16,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929887555] [2021-07-09 17:03:16,766 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:03:16,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:16,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:03:16,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:03:16,767 INFO L87 Difference]: Start difference. First operand 3104 states and 8087 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:18,105 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-07-09 17:03:19,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:19,697 INFO L93 Difference]: Finished difference Result 3501 states and 8884 transitions. [2021-07-09 17:03:19,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-09 17:03:19,697 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:19,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:19,701 INFO L225 Difference]: With dead ends: 3501 [2021-07-09 17:03:19,701 INFO L226 Difference]: Without dead ends: 3312 [2021-07-09 17:03:19,701 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 2609.8ms TimeCoverageRelationStatistics Valid=536, Invalid=2656, Unknown=0, NotChecked=0, Total=3192 [2021-07-09 17:03:19,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2021-07-09 17:03:19,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3060. [2021-07-09 17:03:19,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3060 states, 3059 states have (on average 2.6155606407322654) internal successors, (8001), 3059 states have internal predecessors, (8001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:19,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3060 states to 3060 states and 8001 transitions. [2021-07-09 17:03:19,736 INFO L78 Accepts]: Start accepts. Automaton has 3060 states and 8001 transitions. Word has length 119 [2021-07-09 17:03:19,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:19,736 INFO L482 AbstractCegarLoop]: Abstraction has 3060 states and 8001 transitions. [2021-07-09 17:03:19,737 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:19,737 INFO L276 IsEmpty]: Start isEmpty. Operand 3060 states and 8001 transitions. [2021-07-09 17:03:19,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:19,739 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:19,739 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:19,739 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-07-09 17:03:19,739 INFO L430 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:19,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:19,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1381846079, now seen corresponding path program 142 times [2021-07-09 17:03:19,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:19,740 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852960910] [2021-07-09 17:03:19,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:19,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:19,988 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:19,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852960910] [2021-07-09 17:03:19,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852960910] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:19,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:19,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 17:03:19,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16268800] [2021-07-09 17:03:19,989 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 17:03:19,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:19,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 17:03:19,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-07-09 17:03:19,989 INFO L87 Difference]: Start difference. First operand 3060 states and 8001 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:20,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:20,502 INFO L93 Difference]: Finished difference Result 3955 states and 9749 transitions. [2021-07-09 17:03:20,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 17:03:20,502 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:20,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:20,507 INFO L225 Difference]: With dead ends: 3955 [2021-07-09 17:03:20,507 INFO L226 Difference]: Without dead ends: 3899 [2021-07-09 17:03:20,508 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 425.4ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-07-09 17:03:20,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3899 states. [2021-07-09 17:03:20,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3899 to 2871. [2021-07-09 17:03:20,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2871 states, 2870 states have (on average 2.5846689895470383) internal successors, (7418), 2870 states have internal predecessors, (7418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:20,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2871 states to 2871 states and 7418 transitions. [2021-07-09 17:03:20,550 INFO L78 Accepts]: Start accepts. Automaton has 2871 states and 7418 transitions. Word has length 119 [2021-07-09 17:03:20,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:20,550 INFO L482 AbstractCegarLoop]: Abstraction has 2871 states and 7418 transitions. [2021-07-09 17:03:20,551 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:20,551 INFO L276 IsEmpty]: Start isEmpty. Operand 2871 states and 7418 transitions. [2021-07-09 17:03:20,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:20,553 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:20,553 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:20,553 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-07-09 17:03:20,554 INFO L430 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:20,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:20,554 INFO L82 PathProgramCache]: Analyzing trace with hash 239606275, now seen corresponding path program 143 times [2021-07-09 17:03:20,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:20,554 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101989455] [2021-07-09 17:03:20,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:21,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:21,249 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:21,249 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101989455] [2021-07-09 17:03:21,249 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101989455] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:21,249 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:21,249 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:03:21,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681852573] [2021-07-09 17:03:21,249 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:03:21,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:21,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:03:21,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:03:21,250 INFO L87 Difference]: Start difference. First operand 2871 states and 7418 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:22,533 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-09 17:03:22,711 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-07-09 17:03:23,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:23,582 INFO L93 Difference]: Finished difference Result 3008 states and 7663 transitions. [2021-07-09 17:03:23,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:03:23,582 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:23,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:23,586 INFO L225 Difference]: With dead ends: 3008 [2021-07-09 17:03:23,586 INFO L226 Difference]: Without dead ends: 2903 [2021-07-09 17:03:23,586 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 2174.8ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:03:23,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2021-07-09 17:03:23,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 2871. [2021-07-09 17:03:23,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2871 states, 2870 states have (on average 2.583275261324042) internal successors, (7414), 2870 states have internal predecessors, (7414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:23,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2871 states to 2871 states and 7414 transitions. [2021-07-09 17:03:23,619 INFO L78 Accepts]: Start accepts. Automaton has 2871 states and 7414 transitions. Word has length 119 [2021-07-09 17:03:23,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:23,619 INFO L482 AbstractCegarLoop]: Abstraction has 2871 states and 7414 transitions. [2021-07-09 17:03:23,619 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:23,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2871 states and 7414 transitions. [2021-07-09 17:03:23,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:23,622 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:23,622 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:23,622 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-07-09 17:03:23,622 INFO L430 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:23,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:23,622 INFO L82 PathProgramCache]: Analyzing trace with hash 235188135, now seen corresponding path program 144 times [2021-07-09 17:03:23,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:23,622 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307682458] [2021-07-09 17:03:23,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:24,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:24,275 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:24,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307682458] [2021-07-09 17:03:24,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307682458] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:24,276 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:24,276 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:03:24,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263540121] [2021-07-09 17:03:24,276 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:03:24,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:24,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:03:24,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:03:24,276 INFO L87 Difference]: Start difference. First operand 2871 states and 7414 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:25,275 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-09 17:03:25,492 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-09 17:03:26,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:26,803 INFO L93 Difference]: Finished difference Result 3253 states and 8287 transitions. [2021-07-09 17:03:26,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 17:03:26,803 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:26,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:26,808 INFO L225 Difference]: With dead ends: 3253 [2021-07-09 17:03:26,808 INFO L226 Difference]: Without dead ends: 3158 [2021-07-09 17:03:26,808 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 2214.7ms TimeCoverageRelationStatistics Valid=452, Invalid=2304, Unknown=0, NotChecked=0, Total=2756 [2021-07-09 17:03:26,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3158 states. [2021-07-09 17:03:26,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3158 to 3015. [2021-07-09 17:03:26,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3015 states, 3014 states have (on average 2.5826144658261447) internal successors, (7784), 3014 states have internal predecessors, (7784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:26,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3015 states to 3015 states and 7784 transitions. [2021-07-09 17:03:26,843 INFO L78 Accepts]: Start accepts. Automaton has 3015 states and 7784 transitions. Word has length 119 [2021-07-09 17:03:26,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:26,844 INFO L482 AbstractCegarLoop]: Abstraction has 3015 states and 7784 transitions. [2021-07-09 17:03:26,844 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:26,844 INFO L276 IsEmpty]: Start isEmpty. Operand 3015 states and 7784 transitions. [2021-07-09 17:03:26,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:26,846 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:26,846 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:26,846 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-07-09 17:03:26,846 INFO L430 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:26,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:26,847 INFO L82 PathProgramCache]: Analyzing trace with hash -239518167, now seen corresponding path program 145 times [2021-07-09 17:03:26,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:26,847 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360810719] [2021-07-09 17:03:26,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:27,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:27,541 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:27,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360810719] [2021-07-09 17:03:27,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360810719] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:27,541 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:27,541 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:03:27,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923820466] [2021-07-09 17:03:27,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:03:27,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:27,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:03:27,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:03:27,542 INFO L87 Difference]: Start difference. First operand 3015 states and 7784 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:28,547 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-09 17:03:28,773 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-09 17:03:30,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:30,401 INFO L93 Difference]: Finished difference Result 3540 states and 8913 transitions. [2021-07-09 17:03:30,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-09 17:03:30,401 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:30,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:30,405 INFO L225 Difference]: With dead ends: 3540 [2021-07-09 17:03:30,405 INFO L226 Difference]: Without dead ends: 3045 [2021-07-09 17:03:30,406 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2432.8ms TimeCoverageRelationStatistics Valid=519, Invalid=2673, Unknown=0, NotChecked=0, Total=3192 [2021-07-09 17:03:30,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3045 states. [2021-07-09 17:03:30,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3045 to 2847. [2021-07-09 17:03:30,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2847 states, 2846 states have (on average 2.5839775122979622) internal successors, (7354), 2846 states have internal predecessors, (7354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:30,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2847 states to 2847 states and 7354 transitions. [2021-07-09 17:03:30,443 INFO L78 Accepts]: Start accepts. Automaton has 2847 states and 7354 transitions. Word has length 119 [2021-07-09 17:03:30,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:30,443 INFO L482 AbstractCegarLoop]: Abstraction has 2847 states and 7354 transitions. [2021-07-09 17:03:30,443 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:30,443 INFO L276 IsEmpty]: Start isEmpty. Operand 2847 states and 7354 transitions. [2021-07-09 17:03:30,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:30,446 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:30,446 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:30,446 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-07-09 17:03:30,446 INFO L430 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:30,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:30,446 INFO L82 PathProgramCache]: Analyzing trace with hash -683582829, now seen corresponding path program 146 times [2021-07-09 17:03:30,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:30,446 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555501443] [2021-07-09 17:03:30,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:31,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:31,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:31,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555501443] [2021-07-09 17:03:31,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555501443] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:31,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:31,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:03:31,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233284336] [2021-07-09 17:03:31,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:03:31,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:31,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:03:31,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:03:31,130 INFO L87 Difference]: Start difference. First operand 2847 states and 7354 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:32,087 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-09 17:03:32,299 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-09 17:03:32,600 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-07-09 17:03:33,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:33,586 INFO L93 Difference]: Finished difference Result 2977 states and 7588 transitions. [2021-07-09 17:03:33,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 17:03:33,586 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:33,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:33,590 INFO L225 Difference]: With dead ends: 2977 [2021-07-09 17:03:33,590 INFO L226 Difference]: Without dead ends: 2820 [2021-07-09 17:03:33,590 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 2293.8ms TimeCoverageRelationStatistics Valid=464, Invalid=2292, Unknown=0, NotChecked=0, Total=2756 [2021-07-09 17:03:33,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2021-07-09 17:03:33,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2787. [2021-07-09 17:03:33,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2786 states have (on average 2.5979899497487438) internal successors, (7238), 2786 states have internal predecessors, (7238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:33,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 7238 transitions. [2021-07-09 17:03:33,638 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 7238 transitions. Word has length 119 [2021-07-09 17:03:33,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:33,638 INFO L482 AbstractCegarLoop]: Abstraction has 2787 states and 7238 transitions. [2021-07-09 17:03:33,638 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:33,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 7238 transitions. [2021-07-09 17:03:33,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:33,641 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:33,641 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:33,641 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-07-09 17:03:33,641 INFO L430 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:33,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:33,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1038992181, now seen corresponding path program 147 times [2021-07-09 17:03:33,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:33,642 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637024435] [2021-07-09 17:03:33,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:34,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:34,282 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:34,282 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637024435] [2021-07-09 17:03:34,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637024435] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:34,282 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:34,282 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:03:34,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473307018] [2021-07-09 17:03:34,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:03:34,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:34,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:03:34,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:03:34,283 INFO L87 Difference]: Start difference. First operand 2787 states and 7238 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:35,550 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-09 17:03:35,744 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-07-09 17:03:36,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:36,651 INFO L93 Difference]: Finished difference Result 2944 states and 7544 transitions. [2021-07-09 17:03:36,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:03:36,651 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:36,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:36,654 INFO L225 Difference]: With dead ends: 2944 [2021-07-09 17:03:36,654 INFO L226 Difference]: Without dead ends: 2825 [2021-07-09 17:03:36,654 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 2121.9ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:03:36,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2825 states. [2021-07-09 17:03:36,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2825 to 2771. [2021-07-09 17:03:36,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2770 states have (on average 2.6021660649819496) internal successors, (7208), 2770 states have internal predecessors, (7208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:36,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 7208 transitions. [2021-07-09 17:03:36,684 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 7208 transitions. Word has length 119 [2021-07-09 17:03:36,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:36,684 INFO L482 AbstractCegarLoop]: Abstraction has 2771 states and 7208 transitions. [2021-07-09 17:03:36,684 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:36,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 7208 transitions. [2021-07-09 17:03:36,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:36,686 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:36,686 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:36,686 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-07-09 17:03:36,686 INFO L430 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:36,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:36,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1318013099, now seen corresponding path program 148 times [2021-07-09 17:03:36,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:36,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053634290] [2021-07-09 17:03:36,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:36,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:36,890 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:36,890 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053634290] [2021-07-09 17:03:36,890 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053634290] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:36,890 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:36,890 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 17:03:36,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198782456] [2021-07-09 17:03:36,891 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 17:03:36,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:36,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 17:03:36,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-07-09 17:03:36,891 INFO L87 Difference]: Start difference. First operand 2771 states and 7208 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:37,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:37,170 INFO L93 Difference]: Finished difference Result 5989 states and 15021 transitions. [2021-07-09 17:03:37,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 17:03:37,171 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:37,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:37,179 INFO L225 Difference]: With dead ends: 5989 [2021-07-09 17:03:37,179 INFO L226 Difference]: Without dead ends: 5989 [2021-07-09 17:03:37,179 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 277.3ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-07-09 17:03:37,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5989 states. [2021-07-09 17:03:37,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5989 to 2942. [2021-07-09 17:03:37,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2942 states, 2941 states have (on average 2.5759945596735805) internal successors, (7576), 2941 states have internal predecessors, (7576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:37,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2942 states to 2942 states and 7576 transitions. [2021-07-09 17:03:37,232 INFO L78 Accepts]: Start accepts. Automaton has 2942 states and 7576 transitions. Word has length 119 [2021-07-09 17:03:37,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:37,232 INFO L482 AbstractCegarLoop]: Abstraction has 2942 states and 7576 transitions. [2021-07-09 17:03:37,232 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:37,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2942 states and 7576 transitions. [2021-07-09 17:03:37,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:37,234 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:37,234 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:37,234 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-07-09 17:03:37,235 INFO L430 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:37,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:37,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1394613937, now seen corresponding path program 149 times [2021-07-09 17:03:37,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:37,235 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225111172] [2021-07-09 17:03:37,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:37,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:37,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:37,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225111172] [2021-07-09 17:03:37,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225111172] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:37,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:37,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:03:37,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482317903] [2021-07-09 17:03:37,875 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:03:37,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:37,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:03:37,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:03:37,875 INFO L87 Difference]: Start difference. First operand 2942 states and 7576 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:38,844 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-07-09 17:03:39,076 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-07-09 17:03:41,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:41,062 INFO L93 Difference]: Finished difference Result 4606 states and 11760 transitions. [2021-07-09 17:03:41,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 17:03:41,062 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:41,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:41,068 INFO L225 Difference]: With dead ends: 4606 [2021-07-09 17:03:41,068 INFO L226 Difference]: Without dead ends: 4440 [2021-07-09 17:03:41,069 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2694.7ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 17:03:41,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4440 states. [2021-07-09 17:03:41,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4440 to 3374. [2021-07-09 17:03:41,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3374 states, 3373 states have (on average 2.610139341832197) internal successors, (8804), 3373 states have internal predecessors, (8804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:41,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3374 states to 3374 states and 8804 transitions. [2021-07-09 17:03:41,116 INFO L78 Accepts]: Start accepts. Automaton has 3374 states and 8804 transitions. Word has length 119 [2021-07-09 17:03:41,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:41,116 INFO L482 AbstractCegarLoop]: Abstraction has 3374 states and 8804 transitions. [2021-07-09 17:03:41,116 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:41,116 INFO L276 IsEmpty]: Start isEmpty. Operand 3374 states and 8804 transitions. [2021-07-09 17:03:41,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:41,120 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:41,120 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:41,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-07-09 17:03:41,120 INFO L430 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:41,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:41,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1896506161, now seen corresponding path program 150 times [2021-07-09 17:03:41,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:41,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488167602] [2021-07-09 17:03:41,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:41,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:41,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:41,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488167602] [2021-07-09 17:03:41,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488167602] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:41,788 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:41,788 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:03:41,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428179002] [2021-07-09 17:03:41,788 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:03:41,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:41,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:03:41,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:03:41,789 INFO L87 Difference]: Start difference. First operand 3374 states and 8804 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:42,800 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-07-09 17:03:43,041 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-09 17:03:45,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:45,077 INFO L93 Difference]: Finished difference Result 4943 states and 12666 transitions. [2021-07-09 17:03:45,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 17:03:45,077 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:45,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:45,084 INFO L225 Difference]: With dead ends: 4943 [2021-07-09 17:03:45,084 INFO L226 Difference]: Without dead ends: 4552 [2021-07-09 17:03:45,085 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2786.1ms TimeCoverageRelationStatistics Valid=618, Invalid=2922, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 17:03:45,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4552 states. [2021-07-09 17:03:45,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4552 to 3434. [2021-07-09 17:03:45,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 3433 states have (on average 2.595980192251675) internal successors, (8912), 3433 states have internal predecessors, (8912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:45,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 8912 transitions. [2021-07-09 17:03:45,138 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 8912 transitions. Word has length 119 [2021-07-09 17:03:45,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:45,138 INFO L482 AbstractCegarLoop]: Abstraction has 3434 states and 8912 transitions. [2021-07-09 17:03:45,138 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:45,138 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 8912 transitions. [2021-07-09 17:03:45,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:45,142 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:45,142 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:45,142 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-07-09 17:03:45,142 INFO L430 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:45,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:45,143 INFO L82 PathProgramCache]: Analyzing trace with hash -688080797, now seen corresponding path program 151 times [2021-07-09 17:03:45,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:45,143 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139988045] [2021-07-09 17:03:45,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:45,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:45,809 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:45,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139988045] [2021-07-09 17:03:45,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139988045] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:45,809 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:45,809 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:03:45,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161265735] [2021-07-09 17:03:45,810 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:03:45,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:45,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:03:45,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:03:45,810 INFO L87 Difference]: Start difference. First operand 3434 states and 8912 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:46,806 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-07-09 17:03:47,053 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-09 17:03:49,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:49,219 INFO L93 Difference]: Finished difference Result 4658 states and 11859 transitions. [2021-07-09 17:03:49,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-09 17:03:49,219 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:49,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:49,224 INFO L225 Difference]: With dead ends: 4658 [2021-07-09 17:03:49,224 INFO L226 Difference]: Without dead ends: 4252 [2021-07-09 17:03:49,224 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 2870.8ms TimeCoverageRelationStatistics Valid=639, Invalid=3143, Unknown=0, NotChecked=0, Total=3782 [2021-07-09 17:03:49,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4252 states. [2021-07-09 17:03:49,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4252 to 3134. [2021-07-09 17:03:49,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 2.5943185445260135) internal successors, (8128), 3133 states have internal predecessors, (8128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:49,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 8128 transitions. [2021-07-09 17:03:49,267 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 8128 transitions. Word has length 119 [2021-07-09 17:03:49,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:49,267 INFO L482 AbstractCegarLoop]: Abstraction has 3134 states and 8128 transitions. [2021-07-09 17:03:49,267 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:49,268 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 8128 transitions. [2021-07-09 17:03:49,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:49,271 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:49,271 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:49,271 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-07-09 17:03:49,271 INFO L430 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:49,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:49,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1293182401, now seen corresponding path program 152 times [2021-07-09 17:03:49,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:49,271 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257440323] [2021-07-09 17:03:49,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:49,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:49,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:49,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257440323] [2021-07-09 17:03:49,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257440323] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:49,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:49,934 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:03:49,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670859742] [2021-07-09 17:03:49,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:03:49,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:49,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:03:49,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:03:49,934 INFO L87 Difference]: Start difference. First operand 3134 states and 8128 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:50,905 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-07-09 17:03:51,152 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-07-09 17:03:51,575 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-07-09 17:03:53,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:53,130 INFO L93 Difference]: Finished difference Result 3846 states and 9777 transitions. [2021-07-09 17:03:53,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 17:03:53,130 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:53,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:53,135 INFO L225 Difference]: With dead ends: 3846 [2021-07-09 17:03:53,135 INFO L226 Difference]: Without dead ends: 3666 [2021-07-09 17:03:53,136 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 2799.6ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 17:03:53,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3666 states. [2021-07-09 17:03:53,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3666 to 3128. [2021-07-09 17:03:53,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 2.5944995203070036) internal successors, (8113), 3127 states have internal predecessors, (8113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:53,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 8113 transitions. [2021-07-09 17:03:53,177 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 8113 transitions. Word has length 119 [2021-07-09 17:03:53,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:53,177 INFO L482 AbstractCegarLoop]: Abstraction has 3128 states and 8113 transitions. [2021-07-09 17:03:53,177 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:53,177 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 8113 transitions. [2021-07-09 17:03:53,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:53,181 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:53,181 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:53,181 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-07-09 17:03:53,181 INFO L430 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:53,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:53,181 INFO L82 PathProgramCache]: Analyzing trace with hash -588867087, now seen corresponding path program 153 times [2021-07-09 17:03:53,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:53,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232095820] [2021-07-09 17:03:53,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:53,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:53,931 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:53,931 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232095820] [2021-07-09 17:03:53,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232095820] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:53,931 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:53,931 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:03:53,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382073120] [2021-07-09 17:03:53,931 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:03:53,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:53,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:03:53,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:03:53,932 INFO L87 Difference]: Start difference. First operand 3128 states and 8113 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:54,917 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-07-09 17:03:55,331 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-07-09 17:03:55,520 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-09 17:03:57,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:57,036 INFO L93 Difference]: Finished difference Result 3689 states and 9343 transitions. [2021-07-09 17:03:57,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 17:03:57,037 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:03:57,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:57,041 INFO L225 Difference]: With dead ends: 3689 [2021-07-09 17:03:57,041 INFO L226 Difference]: Without dead ends: 3479 [2021-07-09 17:03:57,042 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2722.3ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-07-09 17:03:57,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2021-07-09 17:03:57,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3118. [2021-07-09 17:03:57,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3117 states have (on average 2.599935835739493) internal successors, (8104), 3117 states have internal predecessors, (8104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:57,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 8104 transitions. [2021-07-09 17:03:57,077 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 8104 transitions. Word has length 119 [2021-07-09 17:03:57,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:57,077 INFO L482 AbstractCegarLoop]: Abstraction has 3118 states and 8104 transitions. [2021-07-09 17:03:57,077 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:57,077 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 8104 transitions. [2021-07-09 17:03:57,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:03:57,080 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:57,080 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:57,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-07-09 17:03:57,080 INFO L430 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:57,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:57,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1214591945, now seen corresponding path program 154 times [2021-07-09 17:03:57,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:57,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907525096] [2021-07-09 17:03:57,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:57,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:57,823 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:57,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907525096] [2021-07-09 17:03:57,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907525096] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:57,823 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:03:57,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:03:57,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654788992] [2021-07-09 17:03:57,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:03:57,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:57,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:03:57,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:03:57,824 INFO L87 Difference]: Start difference. First operand 3118 states and 8104 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:58,761 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-07-09 17:03:59,158 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-09 17:03:59,332 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-09 17:04:00,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:00,871 INFO L93 Difference]: Finished difference Result 3633 states and 9235 transitions. [2021-07-09 17:04:00,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 17:04:00,871 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:04:00,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:00,875 INFO L225 Difference]: With dead ends: 3633 [2021-07-09 17:04:00,876 INFO L226 Difference]: Without dead ends: 3478 [2021-07-09 17:04:00,876 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 2661.8ms TimeCoverageRelationStatistics Valid=604, Invalid=2818, Unknown=0, NotChecked=0, Total=3422 [2021-07-09 17:04:00,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3478 states. [2021-07-09 17:04:00,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3478 to 3124. [2021-07-09 17:04:00,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 2.596541786743516) internal successors, (8109), 3123 states have internal predecessors, (8109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:00,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 8109 transitions. [2021-07-09 17:04:00,915 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 8109 transitions. Word has length 119 [2021-07-09 17:04:00,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:00,915 INFO L482 AbstractCegarLoop]: Abstraction has 3124 states and 8109 transitions. [2021-07-09 17:04:00,916 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:00,916 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 8109 transitions. [2021-07-09 17:04:00,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:04:00,919 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:00,919 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:04:00,919 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-07-09 17:04:00,919 INFO L430 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:00,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:00,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1210173805, now seen corresponding path program 155 times [2021-07-09 17:04:00,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:00,919 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473934495] [2021-07-09 17:04:00,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:01,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:04:01,571 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:01,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473934495] [2021-07-09 17:04:01,571 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473934495] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:01,571 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:01,571 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:04:01,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886853209] [2021-07-09 17:04:01,571 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:04:01,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:01,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:04:01,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:04:01,572 INFO L87 Difference]: Start difference. First operand 3124 states and 8109 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:02,506 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-07-09 17:04:02,726 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-09 17:04:04,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:04,709 INFO L93 Difference]: Finished difference Result 4673 states and 11942 transitions. [2021-07-09 17:04:04,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 17:04:04,710 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:04:04,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:04,715 INFO L225 Difference]: With dead ends: 4673 [2021-07-09 17:04:04,715 INFO L226 Difference]: Without dead ends: 4528 [2021-07-09 17:04:04,716 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 2742.4ms TimeCoverageRelationStatistics Valid=579, Invalid=2961, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 17:04:04,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4528 states. [2021-07-09 17:04:04,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4528 to 3412. [2021-07-09 17:04:04,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 3411 states have (on average 2.610085019055995) internal successors, (8903), 3411 states have internal predecessors, (8903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:04,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 8903 transitions. [2021-07-09 17:04:04,761 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 8903 transitions. Word has length 119 [2021-07-09 17:04:04,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:04,761 INFO L482 AbstractCegarLoop]: Abstraction has 3412 states and 8903 transitions. [2021-07-09 17:04:04,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:04,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 8903 transitions. [2021-07-09 17:04:04,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:04:04,764 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:04,764 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:04:04,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-07-09 17:04:04,765 INFO L430 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:04,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:04,765 INFO L82 PathProgramCache]: Analyzing trace with hash 735467503, now seen corresponding path program 156 times [2021-07-09 17:04:04,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:04,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419304205] [2021-07-09 17:04:04,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:05,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:04:05,414 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:05,414 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419304205] [2021-07-09 17:04:05,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419304205] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:05,414 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:05,414 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:04:05,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444737454] [2021-07-09 17:04:05,414 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:04:05,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:05,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:04:05,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:04:05,415 INFO L87 Difference]: Start difference. First operand 3412 states and 8903 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:06,395 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-07-09 17:04:06,623 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-09 17:04:08,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:08,897 INFO L93 Difference]: Finished difference Result 5103 states and 13023 transitions. [2021-07-09 17:04:08,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-09 17:04:08,897 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:04:08,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:08,903 INFO L225 Difference]: With dead ends: 5103 [2021-07-09 17:04:08,903 INFO L226 Difference]: Without dead ends: 4321 [2021-07-09 17:04:08,904 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 2991.6ms TimeCoverageRelationStatistics Valid=676, Invalid=3356, Unknown=0, NotChecked=0, Total=4032 [2021-07-09 17:04:08,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4321 states. [2021-07-09 17:04:08,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4321 to 3148. [2021-07-09 17:04:08,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3147 states have (on average 2.588179218303146) internal successors, (8145), 3147 states have internal predecessors, (8145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:08,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 8145 transitions. [2021-07-09 17:04:08,945 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 8145 transitions. Word has length 119 [2021-07-09 17:04:08,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:08,945 INFO L482 AbstractCegarLoop]: Abstraction has 3148 states and 8145 transitions. [2021-07-09 17:04:08,945 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:08,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 8145 transitions. [2021-07-09 17:04:08,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:04:08,948 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:08,948 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:04:08,948 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-07-09 17:04:08,948 INFO L430 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:08,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:08,949 INFO L82 PathProgramCache]: Analyzing trace with hash 291402841, now seen corresponding path program 157 times [2021-07-09 17:04:08,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:08,949 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016858098] [2021-07-09 17:04:08,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:09,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:04:09,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:09,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016858098] [2021-07-09 17:04:09,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016858098] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:09,620 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:09,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:04:09,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414896339] [2021-07-09 17:04:09,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:04:09,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:09,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:04:09,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:04:09,621 INFO L87 Difference]: Start difference. First operand 3148 states and 8145 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:10,579 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-07-09 17:04:10,808 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-09 17:04:11,273 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-07-09 17:04:12,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:12,798 INFO L93 Difference]: Finished difference Result 3885 states and 9872 transitions. [2021-07-09 17:04:12,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 17:04:12,798 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:04:12,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:12,802 INFO L225 Difference]: With dead ends: 3885 [2021-07-09 17:04:12,802 INFO L226 Difference]: Without dead ends: 3678 [2021-07-09 17:04:12,803 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 2733.9ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 17:04:12,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3678 states. [2021-07-09 17:04:12,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3678 to 3088. [2021-07-09 17:04:12,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3088 states, 3087 states have (on average 2.600907029478458) internal successors, (8029), 3087 states have internal predecessors, (8029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:12,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3088 states to 3088 states and 8029 transitions. [2021-07-09 17:04:12,839 INFO L78 Accepts]: Start accepts. Automaton has 3088 states and 8029 transitions. Word has length 119 [2021-07-09 17:04:12,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:12,840 INFO L482 AbstractCegarLoop]: Abstraction has 3088 states and 8029 transitions. [2021-07-09 17:04:12,840 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:12,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3088 states and 8029 transitions. [2021-07-09 17:04:12,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:04:12,843 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:12,843 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:04:12,843 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-07-09 17:04:12,843 INFO L430 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:12,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:12,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1535248097, now seen corresponding path program 158 times [2021-07-09 17:04:12,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:12,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119959846] [2021-07-09 17:04:12,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:13,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:04:13,087 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:13,087 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119959846] [2021-07-09 17:04:13,087 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119959846] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:13,088 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:13,088 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 17:04:13,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337104560] [2021-07-09 17:04:13,088 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 17:04:13,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:13,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 17:04:13,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-07-09 17:04:13,088 INFO L87 Difference]: Start difference. First operand 3088 states and 8029 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:13,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:13,603 INFO L93 Difference]: Finished difference Result 4051 states and 10028 transitions. [2021-07-09 17:04:13,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 17:04:13,604 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:04:13,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:13,609 INFO L225 Difference]: With dead ends: 4051 [2021-07-09 17:04:13,609 INFO L226 Difference]: Without dead ends: 3995 [2021-07-09 17:04:13,609 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 450.4ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-07-09 17:04:13,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3995 states. [2021-07-09 17:04:13,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3995 to 2896. [2021-07-09 17:04:13,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2896 states, 2895 states have (on average 2.5906735751295336) internal successors, (7500), 2895 states have internal predecessors, (7500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:13,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2896 states to 2896 states and 7500 transitions. [2021-07-09 17:04:13,648 INFO L78 Accepts]: Start accepts. Automaton has 2896 states and 7500 transitions. Word has length 119 [2021-07-09 17:04:13,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:13,649 INFO L482 AbstractCegarLoop]: Abstraction has 2896 states and 7500 transitions. [2021-07-09 17:04:13,649 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:13,649 INFO L276 IsEmpty]: Start isEmpty. Operand 2896 states and 7500 transitions. [2021-07-09 17:04:13,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:04:13,651 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:13,651 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:04:13,651 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-07-09 17:04:13,651 INFO L430 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:13,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:13,652 INFO L82 PathProgramCache]: Analyzing trace with hash -290631401, now seen corresponding path program 159 times [2021-07-09 17:04:13,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:13,652 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100648329] [2021-07-09 17:04:13,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:14,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:04:14,454 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:14,454 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100648329] [2021-07-09 17:04:14,454 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100648329] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:14,454 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:14,454 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:04:14,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230334491] [2021-07-09 17:04:14,454 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:04:14,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:14,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:04:14,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:04:14,455 INFO L87 Difference]: Start difference. First operand 2896 states and 7500 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:15,906 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-09 17:04:16,109 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-09 17:04:17,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:17,017 INFO L93 Difference]: Finished difference Result 3059 states and 7805 transitions. [2021-07-09 17:04:17,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:04:17,017 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:04:17,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:17,021 INFO L225 Difference]: With dead ends: 3059 [2021-07-09 17:04:17,021 INFO L226 Difference]: Without dead ends: 2956 [2021-07-09 17:04:17,022 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 2371.2ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:04:17,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2021-07-09 17:04:17,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 2906. [2021-07-09 17:04:17,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2906 states, 2905 states have (on average 2.5876075731497417) internal successors, (7517), 2905 states have internal predecessors, (7517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:17,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2906 states to 2906 states and 7517 transitions. [2021-07-09 17:04:17,055 INFO L78 Accepts]: Start accepts. Automaton has 2906 states and 7517 transitions. Word has length 119 [2021-07-09 17:04:17,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:17,055 INFO L482 AbstractCegarLoop]: Abstraction has 2906 states and 7517 transitions. [2021-07-09 17:04:17,055 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:17,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2906 states and 7517 transitions. [2021-07-09 17:04:17,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:04:17,057 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:17,057 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:04:17,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-07-09 17:04:17,058 INFO L430 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:17,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:17,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1831846923, now seen corresponding path program 160 times [2021-07-09 17:04:17,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:17,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423608159] [2021-07-09 17:04:17,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:17,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:04:17,695 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:17,695 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423608159] [2021-07-09 17:04:17,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423608159] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:17,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:17,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:04:17,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835634074] [2021-07-09 17:04:17,696 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:04:17,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:17,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:04:17,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:04:17,696 INFO L87 Difference]: Start difference. First operand 2906 states and 7517 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:20,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:20,236 INFO L93 Difference]: Finished difference Result 3093 states and 7878 transitions. [2021-07-09 17:04:20,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 17:04:20,237 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:04:20,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:20,241 INFO L225 Difference]: With dead ends: 3093 [2021-07-09 17:04:20,241 INFO L226 Difference]: Without dead ends: 2988 [2021-07-09 17:04:20,241 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 2285.0ms TimeCoverageRelationStatistics Valid=452, Invalid=2304, Unknown=0, NotChecked=0, Total=2756 [2021-07-09 17:04:20,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2021-07-09 17:04:20,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 2908. [2021-07-09 17:04:20,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2907 states have (on average 2.586859305125559) internal successors, (7520), 2907 states have internal predecessors, (7520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:20,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 7520 transitions. [2021-07-09 17:04:20,278 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 7520 transitions. Word has length 119 [2021-07-09 17:04:20,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:20,278 INFO L482 AbstractCegarLoop]: Abstraction has 2908 states and 7520 transitions. [2021-07-09 17:04:20,278 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:20,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 7520 transitions. [2021-07-09 17:04:20,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:04:20,281 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:20,281 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:04:20,281 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-07-09 17:04:20,281 INFO L430 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:20,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:20,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1418078527, now seen corresponding path program 161 times [2021-07-09 17:04:20,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:20,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094594093] [2021-07-09 17:04:20,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:20,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:04:20,979 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:20,979 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094594093] [2021-07-09 17:04:20,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094594093] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:20,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:20,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:04:20,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482643681] [2021-07-09 17:04:20,979 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:04:20,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:20,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:04:20,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:04:20,980 INFO L87 Difference]: Start difference. First operand 2908 states and 7520 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:22,361 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-09 17:04:23,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:23,257 INFO L93 Difference]: Finished difference Result 3049 states and 7782 transitions. [2021-07-09 17:04:23,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 17:04:23,258 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:04:23,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:23,261 INFO L225 Difference]: With dead ends: 3049 [2021-07-09 17:04:23,262 INFO L226 Difference]: Without dead ends: 2944 [2021-07-09 17:04:23,262 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 2171.2ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 17:04:23,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2021-07-09 17:04:23,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 2900. [2021-07-09 17:04:23,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2900 states, 2899 states have (on average 2.5881338392549154) internal successors, (7503), 2899 states have internal predecessors, (7503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:23,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2900 states to 2900 states and 7503 transitions. [2021-07-09 17:04:23,296 INFO L78 Accepts]: Start accepts. Automaton has 2900 states and 7503 transitions. Word has length 119 [2021-07-09 17:04:23,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:23,296 INFO L482 AbstractCegarLoop]: Abstraction has 2900 states and 7503 transitions. [2021-07-09 17:04:23,296 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:23,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2900 states and 7503 transitions. [2021-07-09 17:04:23,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:04:23,299 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:23,299 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:04:23,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-07-09 17:04:23,299 INFO L430 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:23,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:23,299 INFO L82 PathProgramCache]: Analyzing trace with hash -624725047, now seen corresponding path program 162 times [2021-07-09 17:04:23,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:23,299 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689969057] [2021-07-09 17:04:23,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:23,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:04:23,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:23,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689969057] [2021-07-09 17:04:23,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689969057] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:23,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:23,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:04:23,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153462165] [2021-07-09 17:04:23,959 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:04:23,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:23,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:04:23,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:04:23,960 INFO L87 Difference]: Start difference. First operand 2900 states and 7503 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:26,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:26,584 INFO L93 Difference]: Finished difference Result 3620 states and 9218 transitions. [2021-07-09 17:04:26,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 17:04:26,584 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:04:26,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:26,589 INFO L225 Difference]: With dead ends: 3620 [2021-07-09 17:04:26,589 INFO L226 Difference]: Without dead ends: 3525 [2021-07-09 17:04:26,589 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2267.1ms TimeCoverageRelationStatistics Valid=464, Invalid=2398, Unknown=0, NotChecked=0, Total=2862 [2021-07-09 17:04:26,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3525 states. [2021-07-09 17:04:26,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3525 to 3104. [2021-07-09 17:04:26,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3103 states have (on average 2.5836287463744765) internal successors, (8017), 3103 states have internal predecessors, (8017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:26,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 8017 transitions. [2021-07-09 17:04:26,631 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 8017 transitions. Word has length 119 [2021-07-09 17:04:26,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:26,631 INFO L482 AbstractCegarLoop]: Abstraction has 3104 states and 8017 transitions. [2021-07-09 17:04:26,631 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:26,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 8017 transitions. [2021-07-09 17:04:26,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:04:26,635 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:26,635 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:04:26,635 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-07-09 17:04:26,635 INFO L430 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:26,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:26,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1099431349, now seen corresponding path program 163 times [2021-07-09 17:04:26,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:26,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512348240] [2021-07-09 17:04:26,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:27,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:04:27,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:27,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512348240] [2021-07-09 17:04:27,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512348240] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:27,303 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:27,304 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:04:27,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062833853] [2021-07-09 17:04:27,304 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:04:27,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:27,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:04:27,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:04:27,304 INFO L87 Difference]: Start difference. First operand 3104 states and 8017 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:30,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:30,298 INFO L93 Difference]: Finished difference Result 3907 states and 9844 transitions. [2021-07-09 17:04:30,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 17:04:30,299 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:04:30,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:30,303 INFO L225 Difference]: With dead ends: 3907 [2021-07-09 17:04:30,303 INFO L226 Difference]: Without dead ends: 3412 [2021-07-09 17:04:30,303 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 2568.5ms TimeCoverageRelationStatistics Valid=528, Invalid=2778, Unknown=0, NotChecked=0, Total=3306 [2021-07-09 17:04:30,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3412 states. [2021-07-09 17:04:30,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3412 to 2936. [2021-07-09 17:04:30,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2935 states have (on average 2.5686541737649065) internal successors, (7539), 2935 states have internal predecessors, (7539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:30,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 7539 transitions. [2021-07-09 17:04:30,355 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 7539 transitions. Word has length 119 [2021-07-09 17:04:30,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:30,355 INFO L482 AbstractCegarLoop]: Abstraction has 2936 states and 7539 transitions. [2021-07-09 17:04:30,355 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:30,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 7539 transitions. [2021-07-09 17:04:30,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:04:30,359 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:30,359 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:04:30,359 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-07-09 17:04:30,359 INFO L430 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:30,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:30,360 INFO L82 PathProgramCache]: Analyzing trace with hash 135546217, now seen corresponding path program 164 times [2021-07-09 17:04:30,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:30,360 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218270703] [2021-07-09 17:04:30,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:30,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:04:30,976 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:30,976 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218270703] [2021-07-09 17:04:30,976 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218270703] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:30,976 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:30,976 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:04:30,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401998047] [2021-07-09 17:04:30,976 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:04:30,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:30,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:04:30,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:04:30,977 INFO L87 Difference]: Start difference. First operand 2936 states and 7539 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:33,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:33,584 INFO L93 Difference]: Finished difference Result 3381 states and 8554 transitions. [2021-07-09 17:04:33,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 17:04:33,584 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:04:33,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:33,588 INFO L225 Difference]: With dead ends: 3381 [2021-07-09 17:04:33,588 INFO L226 Difference]: Without dead ends: 3216 [2021-07-09 17:04:33,588 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2263.0ms TimeCoverageRelationStatistics Valid=464, Invalid=2398, Unknown=0, NotChecked=0, Total=2862 [2021-07-09 17:04:33,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3216 states. [2021-07-09 17:04:33,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3216 to 2876. [2021-07-09 17:04:33,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2876 states, 2875 states have (on average 2.5805217391304347) internal successors, (7419), 2875 states have internal predecessors, (7419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:33,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 7419 transitions. [2021-07-09 17:04:33,621 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 7419 transitions. Word has length 119 [2021-07-09 17:04:33,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:33,621 INFO L482 AbstractCegarLoop]: Abstraction has 2876 states and 7419 transitions. [2021-07-09 17:04:33,621 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:33,621 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 7419 transitions. [2021-07-09 17:04:33,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:04:33,623 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:33,623 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:04:33,623 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-07-09 17:04:33,623 INFO L430 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:33,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:33,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1175804925, now seen corresponding path program 165 times [2021-07-09 17:04:33,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:33,624 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695235271] [2021-07-09 17:04:33,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:34,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:04:34,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:34,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695235271] [2021-07-09 17:04:34,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695235271] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:34,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:34,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:04:34,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434981631] [2021-07-09 17:04:34,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:04:34,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:34,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:04:34,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:04:34,261 INFO L87 Difference]: Start difference. First operand 2876 states and 7419 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:35,429 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-09 17:04:36,064 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-07-09 17:04:36,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:36,947 INFO L93 Difference]: Finished difference Result 3280 states and 8337 transitions. [2021-07-09 17:04:36,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 17:04:36,948 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-09 17:04:36,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:36,952 INFO L225 Difference]: With dead ends: 3280 [2021-07-09 17:04:36,952 INFO L226 Difference]: Without dead ends: 3185 [2021-07-09 17:04:36,952 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 2400.1ms TimeCoverageRelationStatistics Valid=489, Invalid=2481, Unknown=0, NotChecked=0, Total=2970 [2021-07-09 17:04:36,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3185 states. [2021-07-09 17:04:36,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 3020. [2021-07-09 17:04:36,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3020 states, 3019 states have (on average 2.579993375289831) internal successors, (7789), 3019 states have internal predecessors, (7789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:36,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3020 states to 3020 states and 7789 transitions. [2021-07-09 17:04:36,987 INFO L78 Accepts]: Start accepts. Automaton has 3020 states and 7789 transitions. Word has length 119 [2021-07-09 17:04:36,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:36,988 INFO L482 AbstractCegarLoop]: Abstraction has 3020 states and 7789 transitions. [2021-07-09 17:04:36,988 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:36,988 INFO L276 IsEmpty]: Start isEmpty. Operand 3020 states and 7789 transitions. [2021-07-09 17:04:36,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-09 17:04:36,990 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:36,990 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:04:36,990 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-07-09 17:04:36,991 INFO L430 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:36,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:36,991 INFO L82 PathProgramCache]: Analyzing trace with hash 701098623, now seen corresponding path program 166 times [2021-07-09 17:04:36,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:36,991 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556270909] [2021-07-09 17:04:36,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:37,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:04:37,669 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:37,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556270909] [2021-07-09 17:04:37,669 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556270909] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:04:37,669 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:04:37,669 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 17:04:37,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477922400] [2021-07-09 17:04:37,669 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:04:37,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:37,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:04:37,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:04:37,669 INFO L87 Difference]: Start difference. First operand 3020 states and 7789 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:38,898 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-09 17:04:39,105 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-07-09 17:04:40,185 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 Received shutdown request... [2021-07-09 17:04:41,075 WARN L222 SmtUtils]: Removed 15 from assertion stack [2021-07-09 17:04:41,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 17:04:41,075 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-07-09 17:04:41,075 WARN L547 AbstractCegarLoop]: Verification canceled [2021-07-09 17:04:41,077 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 17:04:41,080 WARN L196 ceAbstractionStarter]: Timeout [2021-07-09 17:04:41,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 05:04:41 BasicIcfg [2021-07-09 17:04:41,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 17:04:41,081 INFO L168 Benchmark]: Toolchain (without parser) took 701007.76 ms. Allocated memory was 190.8 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 150.8 MB in the beginning and 828.5 MB in the end (delta: -677.6 MB). Peak memory consumption was 490.9 MB. Max. memory is 8.0 GB. [2021-07-09 17:04:41,081 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 190.8 MB. Free memory is still 171.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 17:04:41,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.02 ms. Allocated memory is still 190.8 MB. Free memory was 150.7 MB in the beginning and 129.6 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 8.0 GB. [2021-07-09 17:04:41,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.42 ms. Allocated memory is still 190.8 MB. Free memory was 129.6 MB in the beginning and 126.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-09 17:04:41,081 INFO L168 Benchmark]: Boogie Preprocessor took 50.52 ms. Allocated memory is still 190.8 MB. Free memory was 126.4 MB in the beginning and 123.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-09 17:04:41,081 INFO L168 Benchmark]: RCFGBuilder took 726.99 ms. Allocated memory is still 190.8 MB. Free memory was 123.8 MB in the beginning and 75.6 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. [2021-07-09 17:04:41,081 INFO L168 Benchmark]: TraceAbstraction took 699418.88 ms. Allocated memory was 190.8 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 75.1 MB in the beginning and 828.5 MB in the end (delta: -753.4 MB). Peak memory consumption was 415.2 MB. Max. memory is 8.0 GB. [2021-07-09 17:04:41,081 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 190.8 MB. Free memory is still 171.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 731.02 ms. Allocated memory is still 190.8 MB. Free memory was 150.7 MB in the beginning and 129.6 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 73.42 ms. Allocated memory is still 190.8 MB. Free memory was 129.6 MB in the beginning and 126.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 50.52 ms. Allocated memory is still 190.8 MB. Free memory was 126.4 MB in the beginning and 123.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 726.99 ms. Allocated memory is still 190.8 MB. Free memory was 123.8 MB in the beginning and 75.6 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 699418.88 ms. Allocated memory was 190.8 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 75.1 MB in the beginning and 828.5 MB in the end (delta: -753.4 MB). Peak memory consumption was 415.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3020states) and FLOYD_HOARE automaton (currently 33 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 41 for 5ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3020states) and FLOYD_HOARE automaton (currently 33 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 41 for 5ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3020states) and FLOYD_HOARE automaton (currently 33 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 41 for 5ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3020states) and FLOYD_HOARE automaton (currently 33 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 41 for 5ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3020states) and FLOYD_HOARE automaton (currently 33 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 41 for 5ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3020states) and FLOYD_HOARE automaton (currently 33 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 41 for 5ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 4 procedures, 176 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 699252.8ms, OverallIterations: 219, TraceHistogramMax: 1, EmptinessCheckTime: 1641.8ms, AutomataDifference: 537438.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 202.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 43885 SDtfs, 192990 SDslu, 492943 SDs, 0 SdLazy, 287208 SolverSat, 19152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 138804.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11584 GetRequests, 641 SyntacticMatches, 504 SemanticMatches, 10438 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92789 ImplicationChecksByTransitivity, 456596.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10192occurred in iteration=29, InterpolantAutomatonStates: 6513, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 23071.4ms AutomataMinimizationTime, 218 MinimizatonAttempts, 273123 StatesRemovedByMinimization, 213 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 393.7ms SsaConstructionTime, 3457.3ms SatisfiabilityAnalysisTime, 131237.4ms InterpolantComputationTime, 25462 NumberOfCodeBlocks, 25462 NumberOfCodeBlocksAsserted, 219 NumberOfCheckSat, 25243 ConstructedInterpolants, 0 QuantifiedInterpolants, 526962 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 219 InterpolantComputations, 219 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown