/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_2-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 16:53:00,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 16:53:00,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 16:53:00,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 16:53:00,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 16:53:00,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 16:53:00,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 16:53:00,430 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 16:53:00,451 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 16:53:00,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 16:53:00,451 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 16:53:00,452 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 16:53:00,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 16:53:00,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 16:53:00,453 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 16:53:00,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 16:53:00,453 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 16:53:00,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 16:53:00,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 16:53:00,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 16:53:00,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 16:53:00,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 16:53:00,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 16:53:00,454 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 16:53:00,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 16:53:00,454 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 16:53:00,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 16:53:00,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 16:53:00,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 16:53:00,454 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 16:53:00,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 16:53:00,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:53:00,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 16:53:00,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 16:53:00,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 16:53:00,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 16:53:00,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 16:53:00,455 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 16:53:00,455 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 16:53:00,455 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 16:53:00,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 16:53:00,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 16:53:00,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 16:53:00,708 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 16:53:00,710 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 16:53:00,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-07-09 16:53:00,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f62f1a3df/63a956ae3cc54a779c5bd748a11619c8/FLAG41c4998e6 [2021-07-09 16:53:01,263 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 16:53:01,264 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-07-09 16:53:01,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f62f1a3df/63a956ae3cc54a779c5bd748a11619c8/FLAG41c4998e6 [2021-07-09 16:53:01,731 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f62f1a3df/63a956ae3cc54a779c5bd748a11619c8 [2021-07-09 16:53:01,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 16:53:01,734 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 16:53:01,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 16:53:01,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 16:53:01,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 16:53:01,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:53:01" (1/1) ... [2021-07-09 16:53:01,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34090309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:01, skipping insertion in model container [2021-07-09 16:53:01,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:53:01" (1/1) ... [2021-07-09 16:53:01,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 16:53:01,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 16:53:01,866 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-09 16:53:02,262 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_2-container_of-global.i[75009,75022] [2021-07-09 16:53:02,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:53:02,289 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 16:53:02,295 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-09 16:53:02,311 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_2-container_of-global.i[75009,75022] [2021-07-09 16:53:02,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:53:02,376 INFO L208 MainTranslator]: Completed translation [2021-07-09 16:53:02,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:02 WrapperNode [2021-07-09 16:53:02,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 16:53:02,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 16:53:02,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 16:53:02,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 16:53:02,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:02" (1/1) ... [2021-07-09 16:53:02,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:02" (1/1) ... [2021-07-09 16:53:02,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 16:53:02,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 16:53:02,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 16:53:02,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 16:53:02,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:02" (1/1) ... [2021-07-09 16:53:02,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:02" (1/1) ... [2021-07-09 16:53:02,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:02" (1/1) ... [2021-07-09 16:53:02,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:02" (1/1) ... [2021-07-09 16:53:02,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:02" (1/1) ... [2021-07-09 16:53:02,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:02" (1/1) ... [2021-07-09 16:53:02,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:02" (1/1) ... [2021-07-09 16:53:02,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 16:53:02,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 16:53:02,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 16:53:02,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 16:53:02,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:02" (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 16:53:02,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 16:53:02,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 16:53:02,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 16:53:02,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-09 16:53:02,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-07-09 16:53:02,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 16:53:02,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 16:53:02,520 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-07-09 16:53:02,520 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-07-09 16:53:02,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 16:53:02,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 16:53:02,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 16:53:02,522 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 16:53:03,093 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 16:53:03,093 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-07-09 16:53:03,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:53:03 BoogieIcfgContainer [2021-07-09 16:53:03,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 16:53:03,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 16:53:03,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 16:53:03,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 16:53:03,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 04:53:01" (1/3) ... [2021-07-09 16:53:03,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@704ac88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:53:03, skipping insertion in model container [2021-07-09 16:53:03,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:02" (2/3) ... [2021-07-09 16:53:03,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@704ac88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:53:03, skipping insertion in model container [2021-07-09 16:53:03,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:53:03" (3/3) ... [2021-07-09 16:53:03,100 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2021-07-09 16:53:03,103 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 16:53:03,103 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 16:53:03,103 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-07-09 16:53:03,104 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 16:53:03,127 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,128 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,128 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,128 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,128 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,128 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,128 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,129 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,129 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,129 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,129 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,129 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,129 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,129 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,129 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,130 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,130 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,130 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,130 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,130 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,130 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,130 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,130 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,130 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,130 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,131 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,131 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,131 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,131 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,131 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,131 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,131 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,131 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,132 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,132 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,132 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,132 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,132 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,132 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,132 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,132 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,133 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,133 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,133 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,133 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,133 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,133 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,133 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,133 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,133 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,134 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,134 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,134 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,134 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,134 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,134 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,134 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,134 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,134 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,135 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,135 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,135 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,135 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,135 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,135 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,135 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,135 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,135 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,136 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,136 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,136 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,136 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,136 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,136 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,136 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,136 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,137 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,137 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,137 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,137 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,137 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,137 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,137 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,137 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,137 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,138 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,138 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,138 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,138 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,138 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,138 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,138 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,140 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,140 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,140 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,140 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,140 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,140 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,141 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,141 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,141 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,141 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,143 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,143 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,143 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,143 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,143 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,143 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,143 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,144 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,144 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,144 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:03,150 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-09 16:53:03,164 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-07-09 16:53:03,175 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:53:03,175 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:53:03,175 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:53:03,176 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:53:03,176 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:53:03,176 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:53:03,176 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:53:03,176 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:53:03,186 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 158 places, 162 transitions, 346 flow [2021-07-09 16:53:03,293 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4270 states, 4260 states have (on average 2.7514084507042256) internal successors, (11721), 4269 states have internal predecessors, (11721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:03,302 INFO L276 IsEmpty]: Start isEmpty. Operand has 4270 states, 4260 states have (on average 2.7514084507042256) internal successors, (11721), 4269 states have internal predecessors, (11721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:03,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-07-09 16:53:03,307 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:03,307 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 16:53:03,307 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 16:53:03,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:03,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1369970770, now seen corresponding path program 1 times [2021-07-09 16:53:03,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:03,316 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136120935] [2021-07-09 16:53:03,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:03,566 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 16:53:03,567 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:03,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136120935] [2021-07-09 16:53:03,567 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136120935] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:03,567 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:03,568 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:53:03,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338329658] [2021-07-09 16:53:03,570 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:53:03,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:03,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:53:03,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:53:03,588 INFO L87 Difference]: Start difference. First operand has 4270 states, 4260 states have (on average 2.7514084507042256) internal successors, (11721), 4269 states have internal predecessors, (11721), 0 states have call successors, (0), 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 16:53:03,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:03,770 INFO L93 Difference]: Finished difference Result 4064 states and 10950 transitions. [2021-07-09 16:53:03,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:53:03,771 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 16:53:03,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:03,797 INFO L225 Difference]: With dead ends: 4064 [2021-07-09 16:53:03,797 INFO L226 Difference]: Without dead ends: 3358 [2021-07-09 16:53:03,798 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 52.0ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:53:03,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3358 states. [2021-07-09 16:53:03,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3358 to 3357. [2021-07-09 16:53:03,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3357 states, 3350 states have (on average 2.681492537313433) internal successors, (8983), 3356 states have internal predecessors, (8983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:03,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3357 states to 3357 states and 8983 transitions. [2021-07-09 16:53:03,942 INFO L78 Accepts]: Start accepts. Automaton has 3357 states and 8983 transitions. Word has length 36 [2021-07-09 16:53:03,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:03,943 INFO L482 AbstractCegarLoop]: Abstraction has 3357 states and 8983 transitions. [2021-07-09 16:53:03,943 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 16:53:03,943 INFO L276 IsEmpty]: Start isEmpty. Operand 3357 states and 8983 transitions. [2021-07-09 16:53:03,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-07-09 16:53:03,943 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:03,944 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 16:53:03,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 16:53:03,944 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 16:53:03,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:03,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1499060535, now seen corresponding path program 1 times [2021-07-09 16:53:03,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:03,945 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532858658] [2021-07-09 16:53:03,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:04,055 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 16:53:04,056 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:04,056 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532858658] [2021-07-09 16:53:04,056 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532858658] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:04,056 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:04,057 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:53:04,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155130199] [2021-07-09 16:53:04,058 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:53:04,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:04,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:53:04,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:53:04,061 INFO L87 Difference]: Start difference. First operand 3357 states and 8983 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 16:53:04,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:04,201 INFO L93 Difference]: Finished difference Result 3359 states and 8985 transitions. [2021-07-09 16:53:04,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:53:04,201 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 16:53:04,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:04,215 INFO L225 Difference]: With dead ends: 3359 [2021-07-09 16:53:04,215 INFO L226 Difference]: Without dead ends: 3359 [2021-07-09 16:53:04,216 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 65.7ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:53:04,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3359 states. [2021-07-09 16:53:04,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3359 to 3355. [2021-07-09 16:53:04,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3349 states have (on average 2.6816960286652733) internal successors, (8981), 3354 states have internal predecessors, (8981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:04,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 8981 transitions. [2021-07-09 16:53:04,293 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 8981 transitions. Word has length 42 [2021-07-09 16:53:04,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:04,293 INFO L482 AbstractCegarLoop]: Abstraction has 3355 states and 8981 transitions. [2021-07-09 16:53:04,294 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 16:53:04,294 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 8981 transitions. [2021-07-09 16:53:04,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 16:53:04,295 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:04,295 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 16:53:04,296 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 16:53:04,296 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 16:53:04,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:04,296 INFO L82 PathProgramCache]: Analyzing trace with hash 709377487, now seen corresponding path program 1 times [2021-07-09 16:53:04,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:04,297 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729887369] [2021-07-09 16:53:04,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:04,378 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 16:53:04,379 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:04,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729887369] [2021-07-09 16:53:04,379 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729887369] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:04,379 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:04,379 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:53:04,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421238925] [2021-07-09 16:53:04,380 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:53:04,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:04,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:53:04,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:53:04,385 INFO L87 Difference]: Start difference. First operand 3355 states and 8981 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 16:53:04,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:04,668 INFO L93 Difference]: Finished difference Result 4878 states and 13059 transitions. [2021-07-09 16:53:04,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 16:53:04,673 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 16:53:04,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:04,693 INFO L225 Difference]: With dead ends: 4878 [2021-07-09 16:53:04,694 INFO L226 Difference]: Without dead ends: 4878 [2021-07-09 16:53:04,694 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 84.9ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:53:04,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4878 states. [2021-07-09 16:53:04,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4878 to 3753. [2021-07-09 16:53:04,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3753 states, 3748 states have (on average 2.683831376734258) internal successors, (10059), 3752 states have internal predecessors, (10059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:04,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 10059 transitions. [2021-07-09 16:53:04,775 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 10059 transitions. Word has length 60 [2021-07-09 16:53:04,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:04,777 INFO L482 AbstractCegarLoop]: Abstraction has 3753 states and 10059 transitions. [2021-07-09 16:53:04,777 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 16:53:04,777 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 10059 transitions. [2021-07-09 16:53:04,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-09 16:53:04,779 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:04,779 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 16:53:04,779 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 16:53:04,780 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 16:53:04,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:04,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1924610094, now seen corresponding path program 1 times [2021-07-09 16:53:04,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:04,780 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423721943] [2021-07-09 16:53:04,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:04,851 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 16:53:04,852 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:04,852 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423721943] [2021-07-09 16:53:04,852 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423721943] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:04,852 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:04,852 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:53:04,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59924888] [2021-07-09 16:53:04,852 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:53:04,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:04,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:53:04,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:53:04,853 INFO L87 Difference]: Start difference. First operand 3753 states and 10059 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 16:53:05,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:05,036 INFO L93 Difference]: Finished difference Result 5276 states and 14062 transitions. [2021-07-09 16:53:05,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:53:05,036 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 16:53:05,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:05,053 INFO L225 Difference]: With dead ends: 5276 [2021-07-09 16:53:05,053 INFO L226 Difference]: Without dead ends: 4475 [2021-07-09 16:53:05,053 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 50.0ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:53:05,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4475 states. [2021-07-09 16:53:05,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4475 to 4325. [2021-07-09 16:53:05,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4325 states, 4321 states have (on average 2.6931265910668825) internal successors, (11637), 4324 states have internal predecessors, (11637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:05,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 11637 transitions. [2021-07-09 16:53:05,172 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 11637 transitions. Word has length 66 [2021-07-09 16:53:05,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:05,173 INFO L482 AbstractCegarLoop]: Abstraction has 4325 states and 11637 transitions. [2021-07-09 16:53:05,173 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 16:53:05,173 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 11637 transitions. [2021-07-09 16:53:05,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-07-09 16:53:05,179 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:05,179 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] [2021-07-09 16:53:05,179 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 16:53:05,179 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 16:53:05,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:05,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1721881747, now seen corresponding path program 1 times [2021-07-09 16:53:05,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:05,180 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676498210] [2021-07-09 16:53:05,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:05,276 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 16:53:05,276 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:05,276 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676498210] [2021-07-09 16:53:05,276 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676498210] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:05,276 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:05,277 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 16:53:05,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398891687] [2021-07-09 16:53:05,278 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 16:53:05,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:05,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 16:53:05,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 16:53:05,278 INFO L87 Difference]: Start difference. First operand 4325 states and 11637 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:05,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:05,309 INFO L93 Difference]: Finished difference Result 1631 states and 4196 transitions. [2021-07-09 16:53:05,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 16:53:05,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2021-07-09 16:53:05,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:05,325 INFO L225 Difference]: With dead ends: 1631 [2021-07-09 16:53:05,325 INFO L226 Difference]: Without dead ends: 1631 [2021-07-09 16:53:05,326 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 22.4ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:53:05,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2021-07-09 16:53:05,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2021-07-09 16:53:05,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1629 states have (on average 2.575813382443217) internal successors, (4196), 1630 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:05,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 4196 transitions. [2021-07-09 16:53:05,356 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 4196 transitions. Word has length 78 [2021-07-09 16:53:05,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:05,357 INFO L482 AbstractCegarLoop]: Abstraction has 1631 states and 4196 transitions. [2021-07-09 16:53:05,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:05,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 4196 transitions. [2021-07-09 16:53:05,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:05,360 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:05,360 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] [2021-07-09 16:53:05,360 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 16:53:05,361 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 16:53:05,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:05,361 INFO L82 PathProgramCache]: Analyzing trace with hash -505570266, now seen corresponding path program 1 times [2021-07-09 16:53:05,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:05,362 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626969795] [2021-07-09 16:53:05,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:05,976 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 16:53:05,976 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:05,976 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626969795] [2021-07-09 16:53:05,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626969795] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:05,977 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:05,977 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:53:05,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423766762] [2021-07-09 16:53:05,977 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:53:05,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:05,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:53:05,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:53:05,978 INFO L87 Difference]: Start difference. First operand 1631 states and 4196 transitions. Second operand has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:08,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:08,417 INFO L93 Difference]: Finished difference Result 2676 states and 6959 transitions. [2021-07-09 16:53:08,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-09 16:53:08,417 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:08,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:08,422 INFO L225 Difference]: With dead ends: 2676 [2021-07-09 16:53:08,422 INFO L226 Difference]: Without dead ends: 2676 [2021-07-09 16:53:08,423 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 1795.4ms TimeCoverageRelationStatistics Valid=842, Invalid=2464, Unknown=0, NotChecked=0, Total=3306 [2021-07-09 16:53:08,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2021-07-09 16:53:08,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2566. [2021-07-09 16:53:08,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2564 states have (on average 2.6326053042121687) internal successors, (6750), 2565 states have internal predecessors, (6750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:08,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 6750 transitions. [2021-07-09 16:53:08,465 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 6750 transitions. Word has length 105 [2021-07-09 16:53:08,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:08,465 INFO L482 AbstractCegarLoop]: Abstraction has 2566 states and 6750 transitions. [2021-07-09 16:53:08,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:08,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 6750 transitions. [2021-07-09 16:53:08,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:08,470 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:08,470 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] [2021-07-09 16:53:08,470 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 16:53:08,470 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 16:53:08,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:08,471 INFO L82 PathProgramCache]: Analyzing trace with hash 718656712, now seen corresponding path program 1 times [2021-07-09 16:53:08,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:08,471 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210756264] [2021-07-09 16:53:08,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:08,764 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 16:53:08,764 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:08,764 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210756264] [2021-07-09 16:53:08,764 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210756264] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:08,764 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:08,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:53:08,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726555587] [2021-07-09 16:53:08,765 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:53:08,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:08,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:53:08,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:53:08,765 INFO L87 Difference]: Start difference. First operand 2566 states and 6750 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:09,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:09,336 INFO L93 Difference]: Finished difference Result 3789 states and 9757 transitions. [2021-07-09 16:53:09,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:53:09,336 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:09,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:09,345 INFO L225 Difference]: With dead ends: 3789 [2021-07-09 16:53:09,345 INFO L226 Difference]: Without dead ends: 3789 [2021-07-09 16:53:09,345 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 428.8ms TimeCoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2021-07-09 16:53:09,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3789 states. [2021-07-09 16:53:09,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3789 to 3036. [2021-07-09 16:53:09,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3036 states, 3034 states have (on average 2.584377059986816) internal successors, (7841), 3035 states have internal predecessors, (7841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:09,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 7841 transitions. [2021-07-09 16:53:09,404 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 7841 transitions. Word has length 105 [2021-07-09 16:53:09,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:09,404 INFO L482 AbstractCegarLoop]: Abstraction has 3036 states and 7841 transitions. [2021-07-09 16:53:09,404 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:09,404 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 7841 transitions. [2021-07-09 16:53:09,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:09,409 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:09,409 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] [2021-07-09 16:53:09,409 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 16:53:09,410 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 16:53:09,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:09,410 INFO L82 PathProgramCache]: Analyzing trace with hash 2017533660, now seen corresponding path program 2 times [2021-07-09 16:53:09,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:09,410 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164419037] [2021-07-09 16:53:09,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:09,713 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 16:53:09,714 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:09,715 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164419037] [2021-07-09 16:53:09,715 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164419037] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:09,715 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:09,715 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:53:09,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494151560] [2021-07-09 16:53:09,715 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:53:09,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:09,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:53:09,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:53:09,716 INFO L87 Difference]: Start difference. First operand 3036 states and 7841 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:10,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:10,727 INFO L93 Difference]: Finished difference Result 4077 states and 10298 transitions. [2021-07-09 16:53:10,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-09 16:53:10,728 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:10,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:10,736 INFO L225 Difference]: With dead ends: 4077 [2021-07-09 16:53:10,736 INFO L226 Difference]: Without dead ends: 4077 [2021-07-09 16:53:10,736 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 511.3ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-07-09 16:53:10,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4077 states. [2021-07-09 16:53:10,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4077 to 3066. [2021-07-09 16:53:10,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 3064 states have (on average 2.5842036553524803) internal successors, (7918), 3065 states have internal predecessors, (7918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:10,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 7918 transitions. [2021-07-09 16:53:10,792 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 7918 transitions. Word has length 105 [2021-07-09 16:53:10,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:10,792 INFO L482 AbstractCegarLoop]: Abstraction has 3066 states and 7918 transitions. [2021-07-09 16:53:10,792 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:10,792 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 7918 transitions. [2021-07-09 16:53:10,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:10,797 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:10,797 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] [2021-07-09 16:53:10,797 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 16:53:10,797 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 16:53:10,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:10,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1530062584, now seen corresponding path program 3 times [2021-07-09 16:53:10,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:10,798 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87385383] [2021-07-09 16:53:10,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:11,293 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 16:53:11,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:11,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87385383] [2021-07-09 16:53:11,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87385383] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:11,294 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:11,294 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-09 16:53:11,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861040807] [2021-07-09 16:53:11,294 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 16:53:11,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:11,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 16:53:11,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:53:11,295 INFO L87 Difference]: Start difference. First operand 3066 states and 7918 transitions. Second operand has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:12,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:12,869 INFO L93 Difference]: Finished difference Result 4299 states and 10825 transitions. [2021-07-09 16:53:12,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-09 16:53:12,869 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:12,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:12,877 INFO L225 Difference]: With dead ends: 4299 [2021-07-09 16:53:12,877 INFO L226 Difference]: Without dead ends: 4299 [2021-07-09 16:53:12,877 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1315.4ms TimeCoverageRelationStatistics Valid=417, Invalid=1143, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 16:53:12,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4299 states. [2021-07-09 16:53:12,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4299 to 3356. [2021-07-09 16:53:12,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3356 states, 3354 states have (on average 2.5837805605247466) internal successors, (8666), 3355 states have internal predecessors, (8666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:12,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 8666 transitions. [2021-07-09 16:53:12,935 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 8666 transitions. Word has length 105 [2021-07-09 16:53:12,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:12,935 INFO L482 AbstractCegarLoop]: Abstraction has 3356 states and 8666 transitions. [2021-07-09 16:53:12,935 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:12,935 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 8666 transitions. [2021-07-09 16:53:12,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:12,941 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:12,941 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] [2021-07-09 16:53:12,941 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-09 16:53:12,941 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 16:53:12,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:12,942 INFO L82 PathProgramCache]: Analyzing trace with hash 187169344, now seen corresponding path program 4 times [2021-07-09 16:53:12,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:12,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24845259] [2021-07-09 16:53:12,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:13,285 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 16:53:13,285 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:13,285 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24845259] [2021-07-09 16:53:13,285 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24845259] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:13,285 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:13,285 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:13,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167877837] [2021-07-09 16:53:13,286 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:13,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:13,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:13,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:13,286 INFO L87 Difference]: Start difference. First operand 3356 states and 8666 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:14,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:14,421 INFO L93 Difference]: Finished difference Result 4498 states and 11407 transitions. [2021-07-09 16:53:14,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-09 16:53:14,422 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:14,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:14,434 INFO L225 Difference]: With dead ends: 4498 [2021-07-09 16:53:14,434 INFO L226 Difference]: Without dead ends: 4498 [2021-07-09 16:53:14,435 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 910.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:14,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4498 states. [2021-07-09 16:53:14,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4498 to 3551. [2021-07-09 16:53:14,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3551 states, 3549 states have (on average 2.5998872921949845) internal successors, (9227), 3550 states have internal predecessors, (9227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:14,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3551 states to 3551 states and 9227 transitions. [2021-07-09 16:53:14,503 INFO L78 Accepts]: Start accepts. Automaton has 3551 states and 9227 transitions. Word has length 105 [2021-07-09 16:53:14,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:14,503 INFO L482 AbstractCegarLoop]: Abstraction has 3551 states and 9227 transitions. [2021-07-09 16:53:14,504 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:14,504 INFO L276 IsEmpty]: Start isEmpty. Operand 3551 states and 9227 transitions. [2021-07-09 16:53:14,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:14,510 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:14,510 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] [2021-07-09 16:53:14,511 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-09 16:53:14,511 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 16:53:14,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:14,511 INFO L82 PathProgramCache]: Analyzing trace with hash -264900710, now seen corresponding path program 5 times [2021-07-09 16:53:14,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:14,511 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528716974] [2021-07-09 16:53:14,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:14,845 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 16:53:14,845 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:14,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528716974] [2021-07-09 16:53:14,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528716974] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:14,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:14,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:14,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895337648] [2021-07-09 16:53:14,846 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:14,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:14,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:14,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:14,847 INFO L87 Difference]: Start difference. First operand 3551 states and 9227 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:16,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:16,057 INFO L93 Difference]: Finished difference Result 4275 states and 10837 transitions. [2021-07-09 16:53:16,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:53:16,057 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:16,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:16,064 INFO L225 Difference]: With dead ends: 4275 [2021-07-09 16:53:16,064 INFO L226 Difference]: Without dead ends: 4275 [2021-07-09 16:53:16,064 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 993.7ms TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:53:16,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4275 states. [2021-07-09 16:53:16,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4275 to 3553. [2021-07-09 16:53:16,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3553 states, 3551 states have (on average 2.5998310335116868) internal successors, (9232), 3552 states have internal predecessors, (9232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:16,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 9232 transitions. [2021-07-09 16:53:16,120 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 9232 transitions. Word has length 105 [2021-07-09 16:53:16,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:16,120 INFO L482 AbstractCegarLoop]: Abstraction has 3553 states and 9232 transitions. [2021-07-09 16:53:16,120 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:16,120 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 9232 transitions. [2021-07-09 16:53:16,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:16,126 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:16,126 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] [2021-07-09 16:53:16,126 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-09 16:53:16,126 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 16:53:16,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:16,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1033652586, now seen corresponding path program 6 times [2021-07-09 16:53:16,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:16,127 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902862460] [2021-07-09 16:53:16,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:16,538 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 16:53:16,538 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:16,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902862460] [2021-07-09 16:53:16,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902862460] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:16,538 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:16,538 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-09 16:53:16,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151156167] [2021-07-09 16:53:16,539 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 16:53:16,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:16,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 16:53:16,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:53:16,539 INFO L87 Difference]: Start difference. First operand 3553 states and 9232 transitions. Second operand has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:18,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:18,125 INFO L93 Difference]: Finished difference Result 5180 states and 12800 transitions. [2021-07-09 16:53:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-09 16:53:18,125 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:18,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:18,138 INFO L225 Difference]: With dead ends: 5180 [2021-07-09 16:53:18,138 INFO L226 Difference]: Without dead ends: 5180 [2021-07-09 16:53:18,139 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 1327.1ms TimeCoverageRelationStatistics Valid=423, Invalid=1217, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 16:53:18,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2021-07-09 16:53:18,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 3529. [2021-07-09 16:53:18,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3529 states, 3527 states have (on average 2.5971080238162743) internal successors, (9160), 3528 states have internal predecessors, (9160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:18,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3529 states to 3529 states and 9160 transitions. [2021-07-09 16:53:18,219 INFO L78 Accepts]: Start accepts. Automaton has 3529 states and 9160 transitions. Word has length 105 [2021-07-09 16:53:18,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:18,219 INFO L482 AbstractCegarLoop]: Abstraction has 3529 states and 9160 transitions. [2021-07-09 16:53:18,219 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:18,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3529 states and 9160 transitions. [2021-07-09 16:53:18,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:18,225 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:18,225 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] [2021-07-09 16:53:18,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-09 16:53:18,226 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 16:53:18,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:18,226 INFO L82 PathProgramCache]: Analyzing trace with hash -581872960, now seen corresponding path program 7 times [2021-07-09 16:53:18,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:18,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13040678] [2021-07-09 16:53:18,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:18,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:18,698 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 16:53:18,698 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:18,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13040678] [2021-07-09 16:53:18,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13040678] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:18,698 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:18,698 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-09 16:53:18,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564122671] [2021-07-09 16:53:18,698 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 16:53:18,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:18,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 16:53:18,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:53:18,699 INFO L87 Difference]: Start difference. First operand 3529 states and 9160 transitions. Second operand has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:20,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:20,155 INFO L93 Difference]: Finished difference Result 4434 states and 11097 transitions. [2021-07-09 16:53:20,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:53:20,155 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:20,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:20,161 INFO L225 Difference]: With dead ends: 4434 [2021-07-09 16:53:20,161 INFO L226 Difference]: Without dead ends: 4434 [2021-07-09 16:53:20,161 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1280.7ms TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2021-07-09 16:53:20,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4434 states. [2021-07-09 16:53:20,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4434 to 3537. [2021-07-09 16:53:20,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 3535 states have (on average 2.596888260254597) internal successors, (9180), 3536 states have internal predecessors, (9180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:20,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 9180 transitions. [2021-07-09 16:53:20,216 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 9180 transitions. Word has length 105 [2021-07-09 16:53:20,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:20,217 INFO L482 AbstractCegarLoop]: Abstraction has 3537 states and 9180 transitions. [2021-07-09 16:53:20,217 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:20,217 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 9180 transitions. [2021-07-09 16:53:20,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:20,223 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:20,223 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] [2021-07-09 16:53:20,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-09 16:53:20,223 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 16:53:20,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:20,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1464091298, now seen corresponding path program 8 times [2021-07-09 16:53:20,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:20,224 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619204853] [2021-07-09 16:53:20,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:20,522 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 16:53:20,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:20,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619204853] [2021-07-09 16:53:20,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619204853] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:20,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:20,525 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:20,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264753476] [2021-07-09 16:53:20,525 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:20,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:20,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:20,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:20,526 INFO L87 Difference]: Start difference. First operand 3537 states and 9180 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:22,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:22,356 INFO L93 Difference]: Finished difference Result 5067 states and 12513 transitions. [2021-07-09 16:53:22,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 16:53:22,356 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:22,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:22,362 INFO L225 Difference]: With dead ends: 5067 [2021-07-09 16:53:22,362 INFO L226 Difference]: Without dead ends: 5067 [2021-07-09 16:53:22,363 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1447.6ms TimeCoverageRelationStatistics Valid=459, Invalid=1263, Unknown=0, NotChecked=0, Total=1722 [2021-07-09 16:53:22,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5067 states. [2021-07-09 16:53:22,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5067 to 3531. [2021-07-09 16:53:22,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3531 states, 3529 states have (on average 2.5970529895154435) internal successors, (9165), 3530 states have internal predecessors, (9165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:22,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3531 states to 3531 states and 9165 transitions. [2021-07-09 16:53:22,421 INFO L78 Accepts]: Start accepts. Automaton has 3531 states and 9165 transitions. Word has length 105 [2021-07-09 16:53:22,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:22,421 INFO L482 AbstractCegarLoop]: Abstraction has 3531 states and 9165 transitions. [2021-07-09 16:53:22,421 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:22,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3531 states and 9165 transitions. [2021-07-09 16:53:22,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:22,429 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:22,429 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] [2021-07-09 16:53:22,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-09 16:53:22,430 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 16:53:22,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:22,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1036005680, now seen corresponding path program 9 times [2021-07-09 16:53:22,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:22,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910236989] [2021-07-09 16:53:22,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:22,662 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 16:53:22,663 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:22,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910236989] [2021-07-09 16:53:22,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910236989] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:22,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:22,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:53:22,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330565162] [2021-07-09 16:53:22,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:53:22,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:22,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:53:22,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:53:22,664 INFO L87 Difference]: Start difference. First operand 3531 states and 9165 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:23,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:23,299 INFO L93 Difference]: Finished difference Result 3944 states and 9981 transitions. [2021-07-09 16:53:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:53:23,299 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:23,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:23,305 INFO L225 Difference]: With dead ends: 3944 [2021-07-09 16:53:23,305 INFO L226 Difference]: Without dead ends: 3944 [2021-07-09 16:53:23,305 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 461.3ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-07-09 16:53:23,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3944 states. [2021-07-09 16:53:23,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3944 to 3527. [2021-07-09 16:53:23,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3527 states, 3525 states have (on average 2.5988652482269505) internal successors, (9161), 3526 states have internal predecessors, (9161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:23,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3527 states to 3527 states and 9161 transitions. [2021-07-09 16:53:23,390 INFO L78 Accepts]: Start accepts. Automaton has 3527 states and 9161 transitions. Word has length 105 [2021-07-09 16:53:23,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:23,390 INFO L482 AbstractCegarLoop]: Abstraction has 3527 states and 9161 transitions. [2021-07-09 16:53:23,390 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:23,391 INFO L276 IsEmpty]: Start isEmpty. Operand 3527 states and 9161 transitions. [2021-07-09 16:53:23,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:23,395 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:23,396 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] [2021-07-09 16:53:23,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-09 16:53:23,396 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 16:53:23,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:23,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1817533888, now seen corresponding path program 10 times [2021-07-09 16:53:23,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:23,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988303997] [2021-07-09 16:53:23,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:23,724 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 16:53:23,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:23,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988303997] [2021-07-09 16:53:23,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988303997] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:23,726 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:23,726 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:23,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698237436] [2021-07-09 16:53:23,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:23,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:23,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:23,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:23,727 INFO L87 Difference]: Start difference. First operand 3527 states and 9161 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:24,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:24,852 INFO L93 Difference]: Finished difference Result 4153 states and 10417 transitions. [2021-07-09 16:53:24,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:53:24,852 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:24,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:24,857 INFO L225 Difference]: With dead ends: 4153 [2021-07-09 16:53:24,857 INFO L226 Difference]: Without dead ends: 4153 [2021-07-09 16:53:24,857 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 899.4ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:53:24,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4153 states. [2021-07-09 16:53:24,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4153 to 3533. [2021-07-09 16:53:24,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3533 states, 3531 states have (on average 2.5986972529028605) internal successors, (9176), 3532 states have internal predecessors, (9176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:24,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3533 states to 3533 states and 9176 transitions. [2021-07-09 16:53:24,904 INFO L78 Accepts]: Start accepts. Automaton has 3533 states and 9176 transitions. Word has length 105 [2021-07-09 16:53:24,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:24,904 INFO L482 AbstractCegarLoop]: Abstraction has 3533 states and 9176 transitions. [2021-07-09 16:53:24,904 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:24,904 INFO L276 IsEmpty]: Start isEmpty. Operand 3533 states and 9176 transitions. [2021-07-09 16:53:24,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:24,909 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:24,910 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] [2021-07-09 16:53:24,910 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-09 16:53:24,910 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 16:53:24,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:24,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1261524376, now seen corresponding path program 11 times [2021-07-09 16:53:24,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:24,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210418894] [2021-07-09 16:53:24,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:25,113 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 16:53:25,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:25,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210418894] [2021-07-09 16:53:25,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210418894] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:25,114 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:25,114 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:53:25,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478312370] [2021-07-09 16:53:25,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:53:25,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:25,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:53:25,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:53:25,115 INFO L87 Difference]: Start difference. First operand 3533 states and 9176 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:25,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:25,699 INFO L93 Difference]: Finished difference Result 4509 states and 11212 transitions. [2021-07-09 16:53:25,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-09 16:53:25,699 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:25,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:25,705 INFO L225 Difference]: With dead ends: 4509 [2021-07-09 16:53:25,705 INFO L226 Difference]: Without dead ends: 4509 [2021-07-09 16:53:25,706 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 425.7ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-07-09 16:53:25,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2021-07-09 16:53:25,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 3520. [2021-07-09 16:53:25,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3520 states, 3518 states have (on average 2.5974985787379192) internal successors, (9138), 3519 states have internal predecessors, (9138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:25,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3520 states to 3520 states and 9138 transitions. [2021-07-09 16:53:25,789 INFO L78 Accepts]: Start accepts. Automaton has 3520 states and 9138 transitions. Word has length 105 [2021-07-09 16:53:25,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:25,790 INFO L482 AbstractCegarLoop]: Abstraction has 3520 states and 9138 transitions. [2021-07-09 16:53:25,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:25,790 INFO L276 IsEmpty]: Start isEmpty. Operand 3520 states and 9138 transitions. [2021-07-09 16:53:25,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:25,795 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:25,795 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] [2021-07-09 16:53:25,795 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-07-09 16:53:25,795 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 16:53:25,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:25,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1403832828, now seen corresponding path program 12 times [2021-07-09 16:53:25,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:25,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832520996] [2021-07-09 16:53:25,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:26,184 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 16:53:26,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:26,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832520996] [2021-07-09 16:53:26,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832520996] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:26,184 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:26,184 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-09 16:53:26,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759261313] [2021-07-09 16:53:26,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 16:53:26,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:26,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 16:53:26,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:53:26,185 INFO L87 Difference]: Start difference. First operand 3520 states and 9138 transitions. Second operand has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:27,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:27,340 INFO L93 Difference]: Finished difference Result 5120 states and 12988 transitions. [2021-07-09 16:53:27,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-09 16:53:27,340 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:27,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:27,346 INFO L225 Difference]: With dead ends: 5120 [2021-07-09 16:53:27,346 INFO L226 Difference]: Without dead ends: 5120 [2021-07-09 16:53:27,346 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 964.7ms TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:53:27,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5120 states. [2021-07-09 16:53:27,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5120 to 3619. [2021-07-09 16:53:27,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3619 states, 3617 states have (on average 2.6018800110588884) internal successors, (9411), 3618 states have internal predecessors, (9411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:27,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3619 states to 3619 states and 9411 transitions. [2021-07-09 16:53:27,401 INFO L78 Accepts]: Start accepts. Automaton has 3619 states and 9411 transitions. Word has length 105 [2021-07-09 16:53:27,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:27,402 INFO L482 AbstractCegarLoop]: Abstraction has 3619 states and 9411 transitions. [2021-07-09 16:53:27,402 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:27,402 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 9411 transitions. [2021-07-09 16:53:27,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:27,407 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:27,407 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] [2021-07-09 16:53:27,408 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-07-09 16:53:27,408 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 16:53:27,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:27,408 INFO L82 PathProgramCache]: Analyzing trace with hash 2142019302, now seen corresponding path program 13 times [2021-07-09 16:53:27,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:27,408 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466393092] [2021-07-09 16:53:27,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:27,702 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 16:53:27,702 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:27,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466393092] [2021-07-09 16:53:27,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466393092] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:27,702 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:27,702 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:27,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981493206] [2021-07-09 16:53:27,704 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:27,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:27,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:27,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:27,704 INFO L87 Difference]: Start difference. First operand 3619 states and 9411 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:28,711 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2021-07-09 16:53:28,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:28,941 INFO L93 Difference]: Finished difference Result 5756 states and 14572 transitions. [2021-07-09 16:53:28,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-09 16:53:28,942 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:28,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:28,948 INFO L225 Difference]: With dead ends: 5756 [2021-07-09 16:53:28,949 INFO L226 Difference]: Without dead ends: 5756 [2021-07-09 16:53:28,949 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 998.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:28,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2021-07-09 16:53:28,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 3655. [2021-07-09 16:53:29,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3655 states, 3653 states have (on average 2.6058034492198194) internal successors, (9519), 3654 states have internal predecessors, (9519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:29,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3655 states to 3655 states and 9519 transitions. [2021-07-09 16:53:29,007 INFO L78 Accepts]: Start accepts. Automaton has 3655 states and 9519 transitions. Word has length 105 [2021-07-09 16:53:29,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:29,007 INFO L482 AbstractCegarLoop]: Abstraction has 3655 states and 9519 transitions. [2021-07-09 16:53:29,007 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:29,007 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 9519 transitions. [2021-07-09 16:53:29,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:29,013 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:29,013 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] [2021-07-09 16:53:29,013 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-09 16:53:29,013 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 16:53:29,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:29,014 INFO L82 PathProgramCache]: Analyzing trace with hash -780507476, now seen corresponding path program 14 times [2021-07-09 16:53:29,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:29,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007424096] [2021-07-09 16:53:29,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:29,300 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 16:53:29,301 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:29,301 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007424096] [2021-07-09 16:53:29,301 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007424096] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:29,301 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:29,301 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:29,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421174204] [2021-07-09 16:53:29,301 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:29,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:29,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:29,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:29,302 INFO L87 Difference]: Start difference. First operand 3655 states and 9519 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:30,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:30,555 INFO L93 Difference]: Finished difference Result 5527 states and 13989 transitions. [2021-07-09 16:53:30,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:53:30,555 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:30,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:30,562 INFO L225 Difference]: With dead ends: 5527 [2021-07-09 16:53:30,562 INFO L226 Difference]: Without dead ends: 5527 [2021-07-09 16:53:30,562 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1014.2ms TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:53:30,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5527 states. [2021-07-09 16:53:30,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5527 to 3619. [2021-07-09 16:53:30,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3619 states, 3617 states have (on average 2.6018800110588884) internal successors, (9411), 3618 states have internal predecessors, (9411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:30,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3619 states to 3619 states and 9411 transitions. [2021-07-09 16:53:30,614 INFO L78 Accepts]: Start accepts. Automaton has 3619 states and 9411 transitions. Word has length 105 [2021-07-09 16:53:30,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:30,615 INFO L482 AbstractCegarLoop]: Abstraction has 3619 states and 9411 transitions. [2021-07-09 16:53:30,615 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:30,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 9411 transitions. [2021-07-09 16:53:30,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:30,620 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:30,620 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] [2021-07-09 16:53:30,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-07-09 16:53:30,620 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 16:53:30,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:30,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1399086824, now seen corresponding path program 15 times [2021-07-09 16:53:30,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:30,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789301764] [2021-07-09 16:53:30,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:30,992 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 16:53:30,992 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:30,993 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789301764] [2021-07-09 16:53:30,993 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789301764] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:30,993 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:30,993 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-09 16:53:30,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928741587] [2021-07-09 16:53:30,993 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 16:53:30,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:30,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 16:53:30,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:53:30,994 INFO L87 Difference]: Start difference. First operand 3619 states and 9411 transitions. Second operand has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:32,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:32,236 INFO L93 Difference]: Finished difference Result 5385 states and 13490 transitions. [2021-07-09 16:53:32,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:53:32,236 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:32,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:32,243 INFO L225 Difference]: With dead ends: 5385 [2021-07-09 16:53:32,243 INFO L226 Difference]: Without dead ends: 5385 [2021-07-09 16:53:32,243 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 1029.0ms TimeCoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2021-07-09 16:53:32,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5385 states. [2021-07-09 16:53:32,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5385 to 3621. [2021-07-09 16:53:32,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3619 states have (on average 2.601823708206687) internal successors, (9416), 3620 states have internal predecessors, (9416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:32,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 9416 transitions. [2021-07-09 16:53:32,297 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 9416 transitions. Word has length 105 [2021-07-09 16:53:32,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:32,297 INFO L482 AbstractCegarLoop]: Abstraction has 3621 states and 9416 transitions. [2021-07-09 16:53:32,297 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:32,297 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 9416 transitions. [2021-07-09 16:53:32,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:32,303 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:32,303 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] [2021-07-09 16:53:32,303 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-07-09 16:53:32,303 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 16:53:32,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:32,304 INFO L82 PathProgramCache]: Analyzing trace with hash 661048320, now seen corresponding path program 16 times [2021-07-09 16:53:32,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:32,304 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130186017] [2021-07-09 16:53:32,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:32,703 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 16:53:32,703 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:32,703 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130186017] [2021-07-09 16:53:32,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130186017] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:32,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:32,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-09 16:53:32,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377226077] [2021-07-09 16:53:32,704 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 16:53:32,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:32,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 16:53:32,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:53:32,705 INFO L87 Difference]: Start difference. First operand 3621 states and 9416 transitions. Second operand has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:34,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:34,073 INFO L93 Difference]: Finished difference Result 5365 states and 13447 transitions. [2021-07-09 16:53:34,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:53:34,074 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:34,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:34,081 INFO L225 Difference]: With dead ends: 5365 [2021-07-09 16:53:34,081 INFO L226 Difference]: Without dead ends: 5365 [2021-07-09 16:53:34,082 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 1142.0ms TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2021-07-09 16:53:34,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5365 states. [2021-07-09 16:53:34,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5365 to 3621. [2021-07-09 16:53:34,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3619 states have (on average 2.601823708206687) internal successors, (9416), 3620 states have internal predecessors, (9416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:34,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 9416 transitions. [2021-07-09 16:53:34,133 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 9416 transitions. Word has length 105 [2021-07-09 16:53:34,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:34,133 INFO L482 AbstractCegarLoop]: Abstraction has 3621 states and 9416 transitions. [2021-07-09 16:53:34,133 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:34,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 9416 transitions. [2021-07-09 16:53:34,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:34,138 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:34,138 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] [2021-07-09 16:53:34,139 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-07-09 16:53:34,139 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 16:53:34,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:34,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1725152698, now seen corresponding path program 17 times [2021-07-09 16:53:34,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:34,139 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686224568] [2021-07-09 16:53:34,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:34,425 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 16:53:34,425 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:34,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686224568] [2021-07-09 16:53:34,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686224568] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:34,425 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:34,425 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:34,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206005364] [2021-07-09 16:53:34,425 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:34,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:34,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:34,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:34,426 INFO L87 Difference]: Start difference. First operand 3621 states and 9416 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:36,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:36,129 INFO L93 Difference]: Finished difference Result 6445 states and 16064 transitions. [2021-07-09 16:53:36,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-09 16:53:36,130 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:36,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:36,139 INFO L225 Difference]: With dead ends: 6445 [2021-07-09 16:53:36,139 INFO L226 Difference]: Without dead ends: 6445 [2021-07-09 16:53:36,140 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1369.9ms TimeCoverageRelationStatistics Valid=449, Invalid=1033, Unknown=0, NotChecked=0, Total=1482 [2021-07-09 16:53:36,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6445 states. [2021-07-09 16:53:36,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6445 to 3669. [2021-07-09 16:53:36,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3669 states, 3667 states have (on average 2.6070357240250885) internal successors, (9560), 3668 states have internal predecessors, (9560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:36,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3669 states to 3669 states and 9560 transitions. [2021-07-09 16:53:36,203 INFO L78 Accepts]: Start accepts. Automaton has 3669 states and 9560 transitions. Word has length 105 [2021-07-09 16:53:36,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:36,203 INFO L482 AbstractCegarLoop]: Abstraction has 3669 states and 9560 transitions. [2021-07-09 16:53:36,204 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:36,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3669 states and 9560 transitions. [2021-07-09 16:53:36,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:36,208 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:36,208 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] [2021-07-09 16:53:36,208 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-07-09 16:53:36,208 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 16:53:36,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:36,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1197374080, now seen corresponding path program 18 times [2021-07-09 16:53:36,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:36,209 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879712815] [2021-07-09 16:53:36,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:36,467 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 16:53:36,467 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:36,467 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879712815] [2021-07-09 16:53:36,467 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879712815] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:36,467 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:36,467 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:36,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227016052] [2021-07-09 16:53:36,467 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:36,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:36,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:36,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:36,468 INFO L87 Difference]: Start difference. First operand 3669 states and 9560 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:38,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:38,164 INFO L93 Difference]: Finished difference Result 6210 states and 15468 transitions. [2021-07-09 16:53:38,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-09 16:53:38,165 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:38,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:38,172 INFO L225 Difference]: With dead ends: 6210 [2021-07-09 16:53:38,173 INFO L226 Difference]: Without dead ends: 6210 [2021-07-09 16:53:38,173 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 1390.8ms TimeCoverageRelationStatistics Valid=434, Invalid=1126, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 16:53:38,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6210 states. [2021-07-09 16:53:38,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6210 to 3633. [2021-07-09 16:53:38,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3633 states, 3631 states have (on average 2.60313963095566) internal successors, (9452), 3632 states have internal predecessors, (9452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:38,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3633 states to 3633 states and 9452 transitions. [2021-07-09 16:53:38,220 INFO L78 Accepts]: Start accepts. Automaton has 3633 states and 9452 transitions. Word has length 105 [2021-07-09 16:53:38,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:38,220 INFO L482 AbstractCegarLoop]: Abstraction has 3633 states and 9452 transitions. [2021-07-09 16:53:38,220 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:38,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3633 states and 9452 transitions. [2021-07-09 16:53:38,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:38,224 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:38,224 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] [2021-07-09 16:53:38,224 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-07-09 16:53:38,224 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 16:53:38,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:38,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1266058644, now seen corresponding path program 19 times [2021-07-09 16:53:38,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:38,225 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697510733] [2021-07-09 16:53:38,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:38,492 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 16:53:38,492 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:38,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697510733] [2021-07-09 16:53:38,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697510733] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:38,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:38,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:38,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343941298] [2021-07-09 16:53:38,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:38,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:38,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:38,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:38,493 INFO L87 Difference]: Start difference. First operand 3633 states and 9452 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:39,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:39,802 INFO L93 Difference]: Finished difference Result 5623 states and 14017 transitions. [2021-07-09 16:53:39,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:53:39,803 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:39,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:39,810 INFO L225 Difference]: With dead ends: 5623 [2021-07-09 16:53:39,810 INFO L226 Difference]: Without dead ends: 5623 [2021-07-09 16:53:39,810 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1026.7ms TimeCoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:53:39,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5623 states. [2021-07-09 16:53:39,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5623 to 3621. [2021-07-09 16:53:39,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3619 states have (on average 2.601823708206687) internal successors, (9416), 3620 states have internal predecessors, (9416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:39,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 9416 transitions. [2021-07-09 16:53:39,854 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 9416 transitions. Word has length 105 [2021-07-09 16:53:39,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:39,854 INFO L482 AbstractCegarLoop]: Abstraction has 3621 states and 9416 transitions. [2021-07-09 16:53:39,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:39,854 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 9416 transitions. [2021-07-09 16:53:39,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:39,858 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:39,858 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] [2021-07-09 16:53:39,858 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-07-09 16:53:39,858 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 16:53:39,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:39,858 INFO L82 PathProgramCache]: Analyzing trace with hash -229225916, now seen corresponding path program 20 times [2021-07-09 16:53:39,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:39,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551326103] [2021-07-09 16:53:39,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:40,048 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 16:53:40,048 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:40,048 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551326103] [2021-07-09 16:53:40,048 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551326103] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:40,048 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:40,048 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:53:40,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323785233] [2021-07-09 16:53:40,049 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:53:40,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:40,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:53:40,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:53:40,049 INFO L87 Difference]: Start difference. First operand 3621 states and 9416 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:40,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:40,622 INFO L93 Difference]: Finished difference Result 4633 states and 11464 transitions. [2021-07-09 16:53:40,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-09 16:53:40,622 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:40,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:40,628 INFO L225 Difference]: With dead ends: 4633 [2021-07-09 16:53:40,628 INFO L226 Difference]: Without dead ends: 4633 [2021-07-09 16:53:40,629 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 436.3ms TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-07-09 16:53:40,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4633 states. [2021-07-09 16:53:40,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4633 to 3624. [2021-07-09 16:53:40,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3622 states have (on average 2.600220872446162) internal successors, (9418), 3623 states have internal predecessors, (9418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:40,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 9418 transitions. [2021-07-09 16:53:40,675 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 9418 transitions. Word has length 105 [2021-07-09 16:53:40,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:40,675 INFO L482 AbstractCegarLoop]: Abstraction has 3624 states and 9418 transitions. [2021-07-09 16:53:40,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:40,675 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 9418 transitions. [2021-07-09 16:53:40,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:40,679 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:40,679 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] [2021-07-09 16:53:40,679 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-09 16:53:40,679 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 16:53:40,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:40,679 INFO L82 PathProgramCache]: Analyzing trace with hash -24600276, now seen corresponding path program 21 times [2021-07-09 16:53:40,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:40,680 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023344009] [2021-07-09 16:53:40,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:40,956 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 16:53:40,956 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:40,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023344009] [2021-07-09 16:53:40,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023344009] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:40,956 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:40,956 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:40,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025434118] [2021-07-09 16:53:40,957 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:40,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:40,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:40,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:40,957 INFO L87 Difference]: Start difference. First operand 3624 states and 9418 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:42,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:42,093 INFO L93 Difference]: Finished difference Result 4795 states and 11953 transitions. [2021-07-09 16:53:42,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:53:42,094 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:42,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:42,099 INFO L225 Difference]: With dead ends: 4795 [2021-07-09 16:53:42,099 INFO L226 Difference]: Without dead ends: 4795 [2021-07-09 16:53:42,099 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 899.2ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:53:42,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4795 states. [2021-07-09 16:53:42,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4795 to 3626. [2021-07-09 16:53:42,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3624 states have (on average 2.600165562913907) internal successors, (9423), 3625 states have internal predecessors, (9423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:42,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 9423 transitions. [2021-07-09 16:53:42,144 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 9423 transitions. Word has length 105 [2021-07-09 16:53:42,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:42,145 INFO L482 AbstractCegarLoop]: Abstraction has 3626 states and 9423 transitions. [2021-07-09 16:53:42,145 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:42,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 9423 transitions. [2021-07-09 16:53:42,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:42,149 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:42,149 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] [2021-07-09 16:53:42,149 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-09 16:53:42,149 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 16:53:42,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:42,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1423009024, now seen corresponding path program 22 times [2021-07-09 16:53:42,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:42,149 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915872445] [2021-07-09 16:53:42,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:42,448 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 16:53:42,449 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:42,449 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915872445] [2021-07-09 16:53:42,449 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915872445] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:42,449 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:42,449 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:42,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29020683] [2021-07-09 16:53:42,449 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:42,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:42,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:42,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:42,450 INFO L87 Difference]: Start difference. First operand 3626 states and 9423 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:43,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:43,610 INFO L93 Difference]: Finished difference Result 4735 states and 11824 transitions. [2021-07-09 16:53:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:53:43,610 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:43,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:43,615 INFO L225 Difference]: With dead ends: 4735 [2021-07-09 16:53:43,615 INFO L226 Difference]: Without dead ends: 4735 [2021-07-09 16:53:43,616 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 988.8ms TimeCoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:53:43,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4735 states. [2021-07-09 16:53:43,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4735 to 3626. [2021-07-09 16:53:43,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3624 states have (on average 2.600165562913907) internal successors, (9423), 3625 states have internal predecessors, (9423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:43,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 9423 transitions. [2021-07-09 16:53:43,655 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 9423 transitions. Word has length 105 [2021-07-09 16:53:43,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:43,655 INFO L482 AbstractCegarLoop]: Abstraction has 3626 states and 9423 transitions. [2021-07-09 16:53:43,656 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:43,656 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 9423 transitions. [2021-07-09 16:53:43,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:43,659 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:43,659 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] [2021-07-09 16:53:43,660 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-07-09 16:53:43,660 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 16:53:43,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:43,660 INFO L82 PathProgramCache]: Analyzing trace with hash -56487370, now seen corresponding path program 23 times [2021-07-09 16:53:43,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:43,660 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670832282] [2021-07-09 16:53:43,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:43,963 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 16:53:43,963 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:43,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670832282] [2021-07-09 16:53:43,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670832282] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:43,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:43,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:43,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411213079] [2021-07-09 16:53:43,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:43,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:43,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:43,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:43,964 INFO L87 Difference]: Start difference. First operand 3626 states and 9423 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:44,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:44,853 INFO L93 Difference]: Finished difference Result 4621 states and 11441 transitions. [2021-07-09 16:53:44,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:53:44,854 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:44,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:44,859 INFO L225 Difference]: With dead ends: 4621 [2021-07-09 16:53:44,859 INFO L226 Difference]: Without dead ends: 4621 [2021-07-09 16:53:44,860 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 716.2ms TimeCoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:53:44,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4621 states. [2021-07-09 16:53:44,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4621 to 3620. [2021-07-09 16:53:44,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3618 states have (on average 2.600331674958541) internal successors, (9408), 3619 states have internal predecessors, (9408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:44,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 9408 transitions. [2021-07-09 16:53:44,900 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 9408 transitions. Word has length 105 [2021-07-09 16:53:44,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:44,900 INFO L482 AbstractCegarLoop]: Abstraction has 3620 states and 9408 transitions. [2021-07-09 16:53:44,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:44,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 9408 transitions. [2021-07-09 16:53:44,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:44,904 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:44,904 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] [2021-07-09 16:53:44,904 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-07-09 16:53:44,904 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 16:53:44,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:44,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1739457348, now seen corresponding path program 24 times [2021-07-09 16:53:44,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:44,905 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044361095] [2021-07-09 16:53:44,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:45,196 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 16:53:45,196 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:45,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044361095] [2021-07-09 16:53:45,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044361095] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:45,196 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:45,196 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:45,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778466623] [2021-07-09 16:53:45,196 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:45,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:45,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:45,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:45,197 INFO L87 Difference]: Start difference. First operand 3620 states and 9408 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:46,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:46,187 INFO L93 Difference]: Finished difference Result 4396 states and 10944 transitions. [2021-07-09 16:53:46,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:53:46,188 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:46,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:46,193 INFO L225 Difference]: With dead ends: 4396 [2021-07-09 16:53:46,193 INFO L226 Difference]: Without dead ends: 4396 [2021-07-09 16:53:46,193 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 850.8ms TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:53:46,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4396 states. [2021-07-09 16:53:46,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4396 to 3620. [2021-07-09 16:53:46,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3618 states have (on average 2.600331674958541) internal successors, (9408), 3619 states have internal predecessors, (9408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:46,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 9408 transitions. [2021-07-09 16:53:46,235 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 9408 transitions. Word has length 105 [2021-07-09 16:53:46,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:46,235 INFO L482 AbstractCegarLoop]: Abstraction has 3620 states and 9408 transitions. [2021-07-09 16:53:46,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:46,235 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 9408 transitions. [2021-07-09 16:53:46,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:46,239 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:46,239 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] [2021-07-09 16:53:46,239 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-07-09 16:53:46,239 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 16:53:46,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:46,240 INFO L82 PathProgramCache]: Analyzing trace with hash -569150224, now seen corresponding path program 25 times [2021-07-09 16:53:46,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:46,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88206163] [2021-07-09 16:53:46,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:46,521 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 16:53:46,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:46,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88206163] [2021-07-09 16:53:46,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88206163] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:46,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:46,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:46,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638219493] [2021-07-09 16:53:46,522 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:46,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:46,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:46,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:46,523 INFO L87 Difference]: Start difference. First operand 3620 states and 9408 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:47,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:47,637 INFO L93 Difference]: Finished difference Result 4479 states and 11103 transitions. [2021-07-09 16:53:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:53:47,637 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:47,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:47,643 INFO L225 Difference]: With dead ends: 4479 [2021-07-09 16:53:47,643 INFO L226 Difference]: Without dead ends: 4479 [2021-07-09 16:53:47,643 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 931.7ms TimeCoverageRelationStatistics Valid=298, Invalid=892, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:53:47,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4479 states. [2021-07-09 16:53:47,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4479 to 3616. [2021-07-09 16:53:47,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3616 states, 3614 states have (on average 2.600442722744881) internal successors, (9398), 3615 states have internal predecessors, (9398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:47,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 9398 transitions. [2021-07-09 16:53:47,684 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 9398 transitions. Word has length 105 [2021-07-09 16:53:47,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:47,684 INFO L482 AbstractCegarLoop]: Abstraction has 3616 states and 9398 transitions. [2021-07-09 16:53:47,684 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:47,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 9398 transitions. [2021-07-09 16:53:47,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:47,688 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:47,688 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] [2021-07-09 16:53:47,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-07-09 16:53:47,688 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 16:53:47,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:47,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1688334656, now seen corresponding path program 26 times [2021-07-09 16:53:47,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:47,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864670591] [2021-07-09 16:53:47,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:47,880 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 16:53:47,881 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:47,881 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864670591] [2021-07-09 16:53:47,881 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864670591] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:47,881 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:47,881 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:53:47,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588706524] [2021-07-09 16:53:47,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:53:47,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:47,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:53:47,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:53:47,882 INFO L87 Difference]: Start difference. First operand 3616 states and 9398 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:48,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:48,430 INFO L93 Difference]: Finished difference Result 4063 states and 10283 transitions. [2021-07-09 16:53:48,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:53:48,430 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:48,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:48,436 INFO L225 Difference]: With dead ends: 4063 [2021-07-09 16:53:48,436 INFO L226 Difference]: Without dead ends: 4063 [2021-07-09 16:53:48,437 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 423.9ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-07-09 16:53:48,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4063 states. [2021-07-09 16:53:48,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4063 to 3548. [2021-07-09 16:53:48,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3548 states, 3546 states have (on average 2.604624929498026) internal successors, (9236), 3547 states have internal predecessors, (9236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:48,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3548 states to 3548 states and 9236 transitions. [2021-07-09 16:53:48,482 INFO L78 Accepts]: Start accepts. Automaton has 3548 states and 9236 transitions. Word has length 105 [2021-07-09 16:53:48,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:48,482 INFO L482 AbstractCegarLoop]: Abstraction has 3548 states and 9236 transitions. [2021-07-09 16:53:48,482 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:48,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3548 states and 9236 transitions. [2021-07-09 16:53:48,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:48,486 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:48,486 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] [2021-07-09 16:53:48,487 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-07-09 16:53:48,487 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 16:53:48,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:48,487 INFO L82 PathProgramCache]: Analyzing trace with hash -124075606, now seen corresponding path program 27 times [2021-07-09 16:53:48,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:48,487 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271626536] [2021-07-09 16:53:48,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:48,780 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 16:53:48,780 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:48,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271626536] [2021-07-09 16:53:48,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271626536] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:48,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:48,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:48,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169297540] [2021-07-09 16:53:48,781 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:48,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:48,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:48,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:48,782 INFO L87 Difference]: Start difference. First operand 3548 states and 9236 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:49,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:49,839 INFO L93 Difference]: Finished difference Result 5792 states and 14693 transitions. [2021-07-09 16:53:49,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-09 16:53:49,839 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:49,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:49,847 INFO L225 Difference]: With dead ends: 5792 [2021-07-09 16:53:49,847 INFO L226 Difference]: Without dead ends: 5792 [2021-07-09 16:53:49,848 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 889.2ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:49,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5792 states. [2021-07-09 16:53:49,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5792 to 3774. [2021-07-09 16:53:49,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3774 states, 3772 states have (on average 2.627253446447508) internal successors, (9910), 3773 states have internal predecessors, (9910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:49,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3774 states to 3774 states and 9910 transitions. [2021-07-09 16:53:49,895 INFO L78 Accepts]: Start accepts. Automaton has 3774 states and 9910 transitions. Word has length 105 [2021-07-09 16:53:49,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:49,896 INFO L482 AbstractCegarLoop]: Abstraction has 3774 states and 9910 transitions. [2021-07-09 16:53:49,896 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:49,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3774 states and 9910 transitions. [2021-07-09 16:53:49,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:49,899 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:49,900 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] [2021-07-09 16:53:49,900 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-07-09 16:53:49,900 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 16:53:49,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:49,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1248364912, now seen corresponding path program 28 times [2021-07-09 16:53:49,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:49,900 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535739160] [2021-07-09 16:53:49,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:50,190 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 16:53:50,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:50,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535739160] [2021-07-09 16:53:50,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535739160] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:50,190 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:50,191 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:50,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705698804] [2021-07-09 16:53:50,191 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:50,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:50,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:50,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:50,191 INFO L87 Difference]: Start difference. First operand 3774 states and 9910 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:51,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:51,358 INFO L93 Difference]: Finished difference Result 5338 states and 13542 transitions. [2021-07-09 16:53:51,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:53:51,359 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:51,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:51,366 INFO L225 Difference]: With dead ends: 5338 [2021-07-09 16:53:51,367 INFO L226 Difference]: Without dead ends: 5338 [2021-07-09 16:53:51,367 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 941.9ms TimeCoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:53:51,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5338 states. [2021-07-09 16:53:51,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5338 to 3743. [2021-07-09 16:53:51,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3743 states, 3741 states have (on average 2.623630045442395) internal successors, (9815), 3742 states have internal predecessors, (9815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:51,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3743 states to 3743 states and 9815 transitions. [2021-07-09 16:53:51,420 INFO L78 Accepts]: Start accepts. Automaton has 3743 states and 9815 transitions. Word has length 105 [2021-07-09 16:53:51,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:51,420 INFO L482 AbstractCegarLoop]: Abstraction has 3743 states and 9815 transitions. [2021-07-09 16:53:51,420 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:51,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3743 states and 9815 transitions. [2021-07-09 16:53:51,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:51,424 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:51,424 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] [2021-07-09 16:53:51,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-07-09 16:53:51,425 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 16:53:51,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:51,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1347698300, now seen corresponding path program 29 times [2021-07-09 16:53:51,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:51,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672795431] [2021-07-09 16:53:51,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:51,717 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 16:53:51,718 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:51,718 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672795431] [2021-07-09 16:53:51,718 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672795431] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:51,718 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:51,718 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:51,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422961306] [2021-07-09 16:53:51,718 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:51,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:51,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:51,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:51,719 INFO L87 Difference]: Start difference. First operand 3743 states and 9815 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:52,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:52,898 INFO L93 Difference]: Finished difference Result 5534 states and 13944 transitions. [2021-07-09 16:53:52,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:53:52,898 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:52,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:52,906 INFO L225 Difference]: With dead ends: 5534 [2021-07-09 16:53:52,906 INFO L226 Difference]: Without dead ends: 5534 [2021-07-09 16:53:52,907 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 945.0ms TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:53:52,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5534 states. [2021-07-09 16:53:52,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5534 to 3712. [2021-07-09 16:53:52,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3712 states, 3710 states have (on average 2.6199460916442048) internal successors, (9720), 3711 states have internal predecessors, (9720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:52,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3712 states to 3712 states and 9720 transitions. [2021-07-09 16:53:52,959 INFO L78 Accepts]: Start accepts. Automaton has 3712 states and 9720 transitions. Word has length 105 [2021-07-09 16:53:52,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:52,959 INFO L482 AbstractCegarLoop]: Abstraction has 3712 states and 9720 transitions. [2021-07-09 16:53:52,960 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:52,960 INFO L276 IsEmpty]: Start isEmpty. Operand 3712 states and 9720 transitions. [2021-07-09 16:53:52,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:52,964 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:52,964 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] [2021-07-09 16:53:52,964 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-07-09 16:53:52,964 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 16:53:52,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:52,964 INFO L82 PathProgramCache]: Analyzing trace with hash 44773424, now seen corresponding path program 30 times [2021-07-09 16:53:52,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:52,964 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035131837] [2021-07-09 16:53:52,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:53,267 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 16:53:53,268 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:53,268 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035131837] [2021-07-09 16:53:53,268 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035131837] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:53,268 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:53,268 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:53,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107830140] [2021-07-09 16:53:53,268 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:53,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:53,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:53,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:53,269 INFO L87 Difference]: Start difference. First operand 3712 states and 9720 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:54,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:54,128 INFO L93 Difference]: Finished difference Result 4556 states and 11438 transitions. [2021-07-09 16:53:54,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:53:54,129 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:54,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:54,135 INFO L225 Difference]: With dead ends: 4556 [2021-07-09 16:53:54,135 INFO L226 Difference]: Without dead ends: 4556 [2021-07-09 16:53:54,135 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 698.5ms TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:53:54,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4556 states. [2021-07-09 16:53:54,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4556 to 3742. [2021-07-09 16:53:54,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3740 states have (on average 2.6189839572192515) internal successors, (9795), 3741 states have internal predecessors, (9795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:54,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 9795 transitions. [2021-07-09 16:53:54,176 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 9795 transitions. Word has length 105 [2021-07-09 16:53:54,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:54,176 INFO L482 AbstractCegarLoop]: Abstraction has 3742 states and 9795 transitions. [2021-07-09 16:53:54,176 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:54,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 9795 transitions. [2021-07-09 16:53:54,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:54,180 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:54,180 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] [2021-07-09 16:53:54,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-07-09 16:53:54,180 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 16:53:54,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:54,180 INFO L82 PathProgramCache]: Analyzing trace with hash 2032954612, now seen corresponding path program 31 times [2021-07-09 16:53:54,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:54,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276263514] [2021-07-09 16:53:54,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:54,474 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 16:53:54,474 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:54,474 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276263514] [2021-07-09 16:53:54,474 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276263514] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:54,474 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:54,474 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:54,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4234119] [2021-07-09 16:53:54,475 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:54,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:54,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:54,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:54,475 INFO L87 Difference]: Start difference. First operand 3742 states and 9795 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:55,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:55,582 INFO L93 Difference]: Finished difference Result 7647 states and 19247 transitions. [2021-07-09 16:53:55,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-09 16:53:55,582 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:55,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:55,594 INFO L225 Difference]: With dead ends: 7647 [2021-07-09 16:53:55,594 INFO L226 Difference]: Without dead ends: 7647 [2021-07-09 16:53:55,594 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 920.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:53:55,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7647 states. [2021-07-09 16:53:55,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7647 to 3814. [2021-07-09 16:53:55,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3814 states, 3812 states have (on average 2.626180482686254) internal successors, (10011), 3813 states have internal predecessors, (10011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:55,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3814 states to 3814 states and 10011 transitions. [2021-07-09 16:53:55,651 INFO L78 Accepts]: Start accepts. Automaton has 3814 states and 10011 transitions. Word has length 105 [2021-07-09 16:53:55,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:55,651 INFO L482 AbstractCegarLoop]: Abstraction has 3814 states and 10011 transitions. [2021-07-09 16:53:55,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:55,651 INFO L276 IsEmpty]: Start isEmpty. Operand 3814 states and 10011 transitions. [2021-07-09 16:53:55,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:55,655 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:55,655 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] [2021-07-09 16:53:55,655 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-07-09 16:53:55,655 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 16:53:55,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:55,656 INFO L82 PathProgramCache]: Analyzing trace with hash -889572166, now seen corresponding path program 32 times [2021-07-09 16:53:55,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:55,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645589238] [2021-07-09 16:53:55,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:55,946 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 16:53:55,946 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:55,947 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645589238] [2021-07-09 16:53:55,947 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645589238] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:55,947 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:55,947 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:55,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301328742] [2021-07-09 16:53:55,947 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:55,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:55,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:55,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:55,948 INFO L87 Difference]: Start difference. First operand 3814 states and 10011 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:57,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:57,164 INFO L93 Difference]: Finished difference Result 7193 states and 18096 transitions. [2021-07-09 16:53:57,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:53:57,165 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:57,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:57,176 INFO L225 Difference]: With dead ends: 7193 [2021-07-09 16:53:57,176 INFO L226 Difference]: Without dead ends: 7193 [2021-07-09 16:53:57,176 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 954.0ms TimeCoverageRelationStatistics Valid=287, Invalid=769, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:53:57,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7193 states. [2021-07-09 16:53:57,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7193 to 3742. [2021-07-09 16:53:57,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3740 states have (on average 2.6189839572192515) internal successors, (9795), 3741 states have internal predecessors, (9795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:57,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 9795 transitions. [2021-07-09 16:53:57,228 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 9795 transitions. Word has length 105 [2021-07-09 16:53:57,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:57,228 INFO L482 AbstractCegarLoop]: Abstraction has 3742 states and 9795 transitions. [2021-07-09 16:53:57,228 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:57,228 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 9795 transitions. [2021-07-09 16:53:57,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:57,232 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:57,232 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] [2021-07-09 16:53:57,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-07-09 16:53:57,232 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 16:53:57,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:57,233 INFO L82 PathProgramCache]: Analyzing trace with hash 809331918, now seen corresponding path program 33 times [2021-07-09 16:53:57,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:57,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146392990] [2021-07-09 16:53:57,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:57,522 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 16:53:57,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:57,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146392990] [2021-07-09 16:53:57,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146392990] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:57,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:57,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:57,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769932605] [2021-07-09 16:53:57,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:57,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:57,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:57,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:57,523 INFO L87 Difference]: Start difference. First operand 3742 states and 9795 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:58,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:58,664 INFO L93 Difference]: Finished difference Result 6538 states and 16410 transitions. [2021-07-09 16:53:58,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:53:58,664 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:53:58,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:58,674 INFO L225 Difference]: With dead ends: 6538 [2021-07-09 16:53:58,674 INFO L226 Difference]: Without dead ends: 6538 [2021-07-09 16:53:58,675 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 946.2ms TimeCoverageRelationStatistics Valid=296, Invalid=826, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:53:58,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6538 states. [2021-07-09 16:53:58,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6538 to 3669. [2021-07-09 16:53:58,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3669 states, 3667 states have (on average 2.61139896373057) internal successors, (9576), 3668 states have internal predecessors, (9576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:58,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3669 states to 3669 states and 9576 transitions. [2021-07-09 16:53:58,744 INFO L78 Accepts]: Start accepts. Automaton has 3669 states and 9576 transitions. Word has length 105 [2021-07-09 16:53:58,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:58,744 INFO L482 AbstractCegarLoop]: Abstraction has 3669 states and 9576 transitions. [2021-07-09 16:53:58,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:58,744 INFO L276 IsEmpty]: Start isEmpty. Operand 3669 states and 9576 transitions. [2021-07-09 16:53:58,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:53:58,748 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:58,748 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] [2021-07-09 16:53:58,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-07-09 16:53:58,748 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 16:53:58,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:58,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1616088008, now seen corresponding path program 34 times [2021-07-09 16:53:58,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:58,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103765721] [2021-07-09 16:53:58,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:59,009 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 16:53:59,009 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:59,009 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103765721] [2021-07-09 16:53:59,009 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103765721] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:59,009 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:59,010 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:53:59,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657661203] [2021-07-09 16:53:59,010 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:53:59,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:59,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:53:59,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:53:59,010 INFO L87 Difference]: Start difference. First operand 3669 states and 9576 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:00,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:00,579 INFO L93 Difference]: Finished difference Result 6413 states and 15962 transitions. [2021-07-09 16:54:00,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-09 16:54:00,579 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:54:00,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:00,587 INFO L225 Difference]: With dead ends: 6413 [2021-07-09 16:54:00,587 INFO L226 Difference]: Without dead ends: 6413 [2021-07-09 16:54:00,587 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1331.5ms TimeCoverageRelationStatistics Valid=450, Invalid=1032, Unknown=0, NotChecked=0, Total=1482 [2021-07-09 16:54:00,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6413 states. [2021-07-09 16:54:00,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6413 to 2966. [2021-07-09 16:54:00,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2966 states, 2964 states have (on average 2.6039136302294197) internal successors, (7718), 2965 states have internal predecessors, (7718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:00,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2966 states to 2966 states and 7718 transitions. [2021-07-09 16:54:00,627 INFO L78 Accepts]: Start accepts. Automaton has 2966 states and 7718 transitions. Word has length 105 [2021-07-09 16:54:00,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:00,627 INFO L482 AbstractCegarLoop]: Abstraction has 2966 states and 7718 transitions. [2021-07-09 16:54:00,627 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:00,627 INFO L276 IsEmpty]: Start isEmpty. Operand 2966 states and 7718 transitions. [2021-07-09 16:54:00,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:54:00,630 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:00,630 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] [2021-07-09 16:54:00,630 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-07-09 16:54:00,630 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 16:54:00,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:00,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1306438770, now seen corresponding path program 35 times [2021-07-09 16:54:00,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:00,630 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340778916] [2021-07-09 16:54:00,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:00,883 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 16:54:00,883 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:00,883 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340778916] [2021-07-09 16:54:00,883 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340778916] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:00,883 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:00,884 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:00,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024239340] [2021-07-09 16:54:00,884 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:00,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:00,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:00,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:00,884 INFO L87 Difference]: Start difference. First operand 2966 states and 7718 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:02,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:02,560 INFO L93 Difference]: Finished difference Result 5916 states and 14711 transitions. [2021-07-09 16:54:02,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-09 16:54:02,561 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:54:02,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:02,569 INFO L225 Difference]: With dead ends: 5916 [2021-07-09 16:54:02,569 INFO L226 Difference]: Without dead ends: 5916 [2021-07-09 16:54:02,569 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1384.7ms TimeCoverageRelationStatistics Valid=435, Invalid=1125, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 16:54:02,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5916 states. [2021-07-09 16:54:02,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5916 to 2891. [2021-07-09 16:54:02,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2891 states, 2889 states have (on average 2.593631014191762) internal successors, (7493), 2890 states have internal predecessors, (7493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:02,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2891 states to 2891 states and 7493 transitions. [2021-07-09 16:54:02,611 INFO L78 Accepts]: Start accepts. Automaton has 2891 states and 7493 transitions. Word has length 105 [2021-07-09 16:54:02,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:02,611 INFO L482 AbstractCegarLoop]: Abstraction has 2891 states and 7493 transitions. [2021-07-09 16:54:02,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:02,611 INFO L276 IsEmpty]: Start isEmpty. Operand 2891 states and 7493 transitions. [2021-07-09 16:54:02,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:54:02,614 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:02,614 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] [2021-07-09 16:54:02,614 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-07-09 16:54:02,614 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 16:54:02,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:02,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1156993954, now seen corresponding path program 36 times [2021-07-09 16:54:02,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:02,614 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008361761] [2021-07-09 16:54:02,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:02,901 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 16:54:02,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:02,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008361761] [2021-07-09 16:54:02,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008361761] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:02,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:02,902 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:02,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824315126] [2021-07-09 16:54:02,902 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:02,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:02,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:02,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:02,903 INFO L87 Difference]: Start difference. First operand 2891 states and 7493 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:04,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:04,168 INFO L93 Difference]: Finished difference Result 4866 states and 12039 transitions. [2021-07-09 16:54:04,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:54:04,168 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:54:04,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:04,175 INFO L225 Difference]: With dead ends: 4866 [2021-07-09 16:54:04,175 INFO L226 Difference]: Without dead ends: 4866 [2021-07-09 16:54:04,175 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1017.1ms TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:54:04,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4866 states. [2021-07-09 16:54:04,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4866 to 2880. [2021-07-09 16:54:04,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2880 states, 2878 states have (on average 2.592077831827658) internal successors, (7460), 2879 states have internal predecessors, (7460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:04,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 7460 transitions. [2021-07-09 16:54:04,213 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 7460 transitions. Word has length 105 [2021-07-09 16:54:04,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:04,213 INFO L482 AbstractCegarLoop]: Abstraction has 2880 states and 7460 transitions. [2021-07-09 16:54:04,213 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:04,213 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 7460 transitions. [2021-07-09 16:54:04,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:54:04,216 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:04,216 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] [2021-07-09 16:54:04,216 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-07-09 16:54:04,216 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 16:54:04,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:04,216 INFO L82 PathProgramCache]: Analyzing trace with hash -133664966, now seen corresponding path program 37 times [2021-07-09 16:54:04,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:04,216 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641163728] [2021-07-09 16:54:04,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:04,477 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 16:54:04,478 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:04,478 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641163728] [2021-07-09 16:54:04,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641163728] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:04,478 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:04,478 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:04,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392319663] [2021-07-09 16:54:04,478 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:04,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:04,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:04,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:04,479 INFO L87 Difference]: Start difference. First operand 2880 states and 7460 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:05,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:05,637 INFO L93 Difference]: Finished difference Result 4695 states and 11568 transitions. [2021-07-09 16:54:05,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:54:05,637 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:54:05,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:05,644 INFO L225 Difference]: With dead ends: 4695 [2021-07-09 16:54:05,644 INFO L226 Difference]: Without dead ends: 4695 [2021-07-09 16:54:05,645 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 865.4ms TimeCoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:54:05,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4695 states. [2021-07-09 16:54:05,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4695 to 2883. [2021-07-09 16:54:05,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2883 states, 2881 states have (on average 2.5921555015619577) internal successors, (7468), 2882 states have internal predecessors, (7468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:05,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2883 states to 2883 states and 7468 transitions. [2021-07-09 16:54:05,685 INFO L78 Accepts]: Start accepts. Automaton has 2883 states and 7468 transitions. Word has length 105 [2021-07-09 16:54:05,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:05,685 INFO L482 AbstractCegarLoop]: Abstraction has 2883 states and 7468 transitions. [2021-07-09 16:54:05,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:05,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2883 states and 7468 transitions. [2021-07-09 16:54:05,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:54:05,688 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:05,688 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] [2021-07-09 16:54:05,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-07-09 16:54:05,688 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 16:54:05,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:05,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1313944334, now seen corresponding path program 38 times [2021-07-09 16:54:05,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:05,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954642219] [2021-07-09 16:54:05,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:05,964 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 16:54:05,964 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:05,964 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954642219] [2021-07-09 16:54:05,964 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954642219] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:05,964 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:05,964 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:05,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509341458] [2021-07-09 16:54:05,965 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:05,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:05,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:05,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:05,965 INFO L87 Difference]: Start difference. First operand 2883 states and 7468 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:07,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:07,159 INFO L93 Difference]: Finished difference Result 4584 states and 11319 transitions. [2021-07-09 16:54:07,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:54:07,159 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:54:07,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:07,166 INFO L225 Difference]: With dead ends: 4584 [2021-07-09 16:54:07,166 INFO L226 Difference]: Without dead ends: 4584 [2021-07-09 16:54:07,166 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 951.7ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:54:07,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4584 states. [2021-07-09 16:54:07,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4584 to 2869. [2021-07-09 16:54:07,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2869 states, 2867 states have (on average 2.590512731077782) internal successors, (7427), 2868 states have internal predecessors, (7427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:07,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2869 states to 2869 states and 7427 transitions. [2021-07-09 16:54:07,202 INFO L78 Accepts]: Start accepts. Automaton has 2869 states and 7427 transitions. Word has length 105 [2021-07-09 16:54:07,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:07,202 INFO L482 AbstractCegarLoop]: Abstraction has 2869 states and 7427 transitions. [2021-07-09 16:54:07,202 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:07,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2869 states and 7427 transitions. [2021-07-09 16:54:07,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:54:07,205 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:07,205 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] [2021-07-09 16:54:07,205 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-07-09 16:54:07,205 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 16:54:07,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:07,205 INFO L82 PathProgramCache]: Analyzing trace with hash 876641092, now seen corresponding path program 39 times [2021-07-09 16:54:07,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:07,208 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515455168] [2021-07-09 16:54:07,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:07,489 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 16:54:07,489 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:07,489 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515455168] [2021-07-09 16:54:07,489 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515455168] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:07,489 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:07,489 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:07,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774458028] [2021-07-09 16:54:07,489 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:07,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:07,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:07,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:07,490 INFO L87 Difference]: Start difference. First operand 2869 states and 7427 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:08,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:08,330 INFO L93 Difference]: Finished difference Result 3786 states and 9295 transitions. [2021-07-09 16:54:08,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:54:08,330 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:54:08,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:08,335 INFO L225 Difference]: With dead ends: 3786 [2021-07-09 16:54:08,335 INFO L226 Difference]: Without dead ends: 3786 [2021-07-09 16:54:08,336 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 679.4ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:54:08,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3786 states. [2021-07-09 16:54:08,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3786 to 2848. [2021-07-09 16:54:08,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2846 states have (on average 2.590653548840478) internal successors, (7373), 2847 states have internal predecessors, (7373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:08,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 7373 transitions. [2021-07-09 16:54:08,369 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 7373 transitions. Word has length 105 [2021-07-09 16:54:08,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:08,369 INFO L482 AbstractCegarLoop]: Abstraction has 2848 states and 7373 transitions. [2021-07-09 16:54:08,369 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:08,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 7373 transitions. [2021-07-09 16:54:08,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:54:08,372 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:08,372 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] [2021-07-09 16:54:08,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-07-09 16:54:08,372 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 16:54:08,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:08,373 INFO L82 PathProgramCache]: Analyzing trace with hash -2097647346, now seen corresponding path program 40 times [2021-07-09 16:54:08,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:08,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445488393] [2021-07-09 16:54:08,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:08,652 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 16:54:08,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:08,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445488393] [2021-07-09 16:54:08,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445488393] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:08,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:08,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:08,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227804793] [2021-07-09 16:54:08,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:08,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:08,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:08,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:08,653 INFO L87 Difference]: Start difference. First operand 2848 states and 7373 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:09,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:09,493 INFO L93 Difference]: Finished difference Result 3813 states and 9309 transitions. [2021-07-09 16:54:09,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:54:09,493 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:54:09,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:09,498 INFO L225 Difference]: With dead ends: 3813 [2021-07-09 16:54:09,498 INFO L226 Difference]: Without dead ends: 3813 [2021-07-09 16:54:09,498 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 699.4ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:54:09,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3813 states. [2021-07-09 16:54:09,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3813 to 2841. [2021-07-09 16:54:09,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2839 states have (on average 2.590700951039098) internal successors, (7355), 2840 states have internal predecessors, (7355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:09,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 7355 transitions. [2021-07-09 16:54:09,532 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 7355 transitions. Word has length 105 [2021-07-09 16:54:09,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:09,532 INFO L482 AbstractCegarLoop]: Abstraction has 2841 states and 7355 transitions. [2021-07-09 16:54:09,532 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:09,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 7355 transitions. [2021-07-09 16:54:09,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:54:09,535 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:09,535 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] [2021-07-09 16:54:09,535 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-07-09 16:54:09,535 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 16:54:09,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:09,535 INFO L82 PathProgramCache]: Analyzing trace with hash -650038046, now seen corresponding path program 41 times [2021-07-09 16:54:09,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:09,535 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794870668] [2021-07-09 16:54:09,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:09,815 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 16:54:09,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:09,815 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794870668] [2021-07-09 16:54:09,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794870668] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:09,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:09,816 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:09,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127067864] [2021-07-09 16:54:09,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:09,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:09,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:09,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:09,817 INFO L87 Difference]: Start difference. First operand 2841 states and 7355 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:10,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:10,822 INFO L93 Difference]: Finished difference Result 3580 states and 8823 transitions. [2021-07-09 16:54:10,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:54:10,823 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:54:10,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:10,827 INFO L225 Difference]: With dead ends: 3580 [2021-07-09 16:54:10,828 INFO L226 Difference]: Without dead ends: 3580 [2021-07-09 16:54:10,828 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 787.9ms TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:54:10,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2021-07-09 16:54:10,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 2723. [2021-07-09 16:54:10,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2723 states, 2721 states have (on average 2.606027195883866) internal successors, (7091), 2722 states have internal predecessors, (7091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:10,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2723 states to 2723 states and 7091 transitions. [2021-07-09 16:54:10,861 INFO L78 Accepts]: Start accepts. Automaton has 2723 states and 7091 transitions. Word has length 105 [2021-07-09 16:54:10,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:10,861 INFO L482 AbstractCegarLoop]: Abstraction has 2723 states and 7091 transitions. [2021-07-09 16:54:10,861 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:10,861 INFO L276 IsEmpty]: Start isEmpty. Operand 2723 states and 7091 transitions. [2021-07-09 16:54:10,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:54:10,864 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:10,864 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] [2021-07-09 16:54:10,864 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-07-09 16:54:10,864 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 16:54:10,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:10,864 INFO L82 PathProgramCache]: Analyzing trace with hash 262787042, now seen corresponding path program 42 times [2021-07-09 16:54:10,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:10,864 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474286153] [2021-07-09 16:54:10,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:11,136 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 16:54:11,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:11,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474286153] [2021-07-09 16:54:11,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474286153] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:11,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:11,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:11,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435132504] [2021-07-09 16:54:11,137 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:11,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:11,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:11,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:11,137 INFO L87 Difference]: Start difference. First operand 2723 states and 7091 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:11,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:11,994 INFO L93 Difference]: Finished difference Result 3197 states and 8060 transitions. [2021-07-09 16:54:11,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:54:11,994 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:54:11,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:12,010 INFO L225 Difference]: With dead ends: 3197 [2021-07-09 16:54:12,010 INFO L226 Difference]: Without dead ends: 3197 [2021-07-09 16:54:12,011 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 674.6ms TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:54:12,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2021-07-09 16:54:12,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 2705. [2021-07-09 16:54:12,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2705 states, 2703 states have (on average 2.6067332593414725) internal successors, (7046), 2704 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:12,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 7046 transitions. [2021-07-09 16:54:12,038 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 7046 transitions. Word has length 105 [2021-07-09 16:54:12,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:12,038 INFO L482 AbstractCegarLoop]: Abstraction has 2705 states and 7046 transitions. [2021-07-09 16:54:12,038 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:12,038 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 7046 transitions. [2021-07-09 16:54:12,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:54:12,040 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:12,040 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] [2021-07-09 16:54:12,041 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-07-09 16:54:12,041 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 16:54:12,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:12,041 INFO L82 PathProgramCache]: Analyzing trace with hash 2058731760, now seen corresponding path program 43 times [2021-07-09 16:54:12,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:12,041 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555270885] [2021-07-09 16:54:12,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:12,317 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 16:54:12,317 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:12,317 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555270885] [2021-07-09 16:54:12,317 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555270885] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:12,317 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:12,318 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:12,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638068490] [2021-07-09 16:54:12,318 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:12,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:12,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:12,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:12,318 INFO L87 Difference]: Start difference. First operand 2705 states and 7046 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:13,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:13,173 INFO L93 Difference]: Finished difference Result 3419 states and 8516 transitions. [2021-07-09 16:54:13,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:54:13,174 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:54:13,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:13,179 INFO L225 Difference]: With dead ends: 3419 [2021-07-09 16:54:13,179 INFO L226 Difference]: Without dead ends: 3419 [2021-07-09 16:54:13,179 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 691.9ms TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:54:13,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2021-07-09 16:54:13,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 2707. [2021-07-09 16:54:13,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2707 states, 2705 states have (on average 2.6066543438077634) internal successors, (7051), 2706 states have internal predecessors, (7051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:13,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2707 states to 2707 states and 7051 transitions. [2021-07-09 16:54:13,209 INFO L78 Accepts]: Start accepts. Automaton has 2707 states and 7051 transitions. Word has length 105 [2021-07-09 16:54:13,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:13,209 INFO L482 AbstractCegarLoop]: Abstraction has 2707 states and 7051 transitions. [2021-07-09 16:54:13,210 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:13,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2707 states and 7051 transitions. [2021-07-09 16:54:13,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:54:13,212 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:13,212 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] [2021-07-09 16:54:13,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-07-09 16:54:13,212 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 16:54:13,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:13,213 INFO L82 PathProgramCache]: Analyzing trace with hash -249875812, now seen corresponding path program 44 times [2021-07-09 16:54:13,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:13,213 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669442812] [2021-07-09 16:54:13,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:13,508 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 16:54:13,509 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:13,509 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669442812] [2021-07-09 16:54:13,509 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669442812] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:13,509 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:13,509 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:13,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280250884] [2021-07-09 16:54:13,509 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:13,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:13,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:13,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:13,510 INFO L87 Difference]: Start difference. First operand 2707 states and 7051 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:14,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:14,507 INFO L93 Difference]: Finished difference Result 3502 states and 8675 transitions. [2021-07-09 16:54:14,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:54:14,507 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:54:14,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:14,513 INFO L225 Difference]: With dead ends: 3502 [2021-07-09 16:54:14,513 INFO L226 Difference]: Without dead ends: 3502 [2021-07-09 16:54:14,513 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 745.2ms TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:54:14,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3502 states. [2021-07-09 16:54:14,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3502 to 2699. [2021-07-09 16:54:14,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2699 states, 2697 states have (on average 2.60697070819429) internal successors, (7031), 2698 states have internal predecessors, (7031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:14,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2699 states to 2699 states and 7031 transitions. [2021-07-09 16:54:14,545 INFO L78 Accepts]: Start accepts. Automaton has 2699 states and 7031 transitions. Word has length 105 [2021-07-09 16:54:14,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:14,545 INFO L482 AbstractCegarLoop]: Abstraction has 2699 states and 7031 transitions. [2021-07-09 16:54:14,545 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:14,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2699 states and 7031 transitions. [2021-07-09 16:54:14,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:54:14,548 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:14,548 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] [2021-07-09 16:54:14,548 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-07-09 16:54:14,548 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 16:54:14,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:14,548 INFO L82 PathProgramCache]: Analyzing trace with hash -631228918, now seen corresponding path program 45 times [2021-07-09 16:54:14,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:14,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337065273] [2021-07-09 16:54:14,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:14,833 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 16:54:14,833 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:14,833 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337065273] [2021-07-09 16:54:14,833 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337065273] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:14,833 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:14,833 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:14,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20586017] [2021-07-09 16:54:14,833 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:14,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:14,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:14,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:14,834 INFO L87 Difference]: Start difference. First operand 2699 states and 7031 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:15,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:15,668 INFO L93 Difference]: Finished difference Result 3084 states and 7796 transitions. [2021-07-09 16:54:15,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:54:15,669 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:54:15,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:15,673 INFO L225 Difference]: With dead ends: 3084 [2021-07-09 16:54:15,673 INFO L226 Difference]: Without dead ends: 3084 [2021-07-09 16:54:15,673 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 658.4ms TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:54:15,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2021-07-09 16:54:15,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 2681. [2021-07-09 16:54:15,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 2679 states have (on average 2.6076894363568495) internal successors, (6986), 2680 states have internal predecessors, (6986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:15,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 6986 transitions. [2021-07-09 16:54:15,699 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 6986 transitions. Word has length 105 [2021-07-09 16:54:15,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:15,700 INFO L482 AbstractCegarLoop]: Abstraction has 2681 states and 6986 transitions. [2021-07-09 16:54:15,700 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:15,700 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 6986 transitions. [2021-07-09 16:54:15,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:54:15,702 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:15,702 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] [2021-07-09 16:54:15,702 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-07-09 16:54:15,703 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 16:54:15,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:15,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1766678272, now seen corresponding path program 46 times [2021-07-09 16:54:15,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:15,703 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704320231] [2021-07-09 16:54:15,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:15,987 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 16:54:15,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:15,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704320231] [2021-07-09 16:54:15,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704320231] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:15,987 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:15,987 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:15,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888260512] [2021-07-09 16:54:15,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:15,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:15,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:15,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:15,988 INFO L87 Difference]: Start difference. First operand 2681 states and 6986 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:16,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:16,846 INFO L93 Difference]: Finished difference Result 3297 states and 8221 transitions. [2021-07-09 16:54:16,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:54:16,846 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:54:16,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:16,851 INFO L225 Difference]: With dead ends: 3297 [2021-07-09 16:54:16,851 INFO L226 Difference]: Without dead ends: 3297 [2021-07-09 16:54:16,851 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 696.4ms TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:54:16,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2021-07-09 16:54:16,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 2675. [2021-07-09 16:54:16,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2675 states, 2673 states have (on average 2.607931163486719) internal successors, (6971), 2674 states have internal predecessors, (6971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:16,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 6971 transitions. [2021-07-09 16:54:16,879 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 6971 transitions. Word has length 105 [2021-07-09 16:54:16,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:16,879 INFO L482 AbstractCegarLoop]: Abstraction has 2675 states and 6971 transitions. [2021-07-09 16:54:16,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:16,879 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 6971 transitions. [2021-07-09 16:54:16,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-09 16:54:16,882 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:16,882 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] [2021-07-09 16:54:16,882 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-07-09 16:54:16,882 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 16:54:16,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:16,882 INFO L82 PathProgramCache]: Analyzing trace with hash -541929300, now seen corresponding path program 47 times [2021-07-09 16:54:16,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:16,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718257502] [2021-07-09 16:54:16,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:17,159 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 16:54:17,159 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:17,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718257502] [2021-07-09 16:54:17,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718257502] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:17,159 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:17,159 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:54:17,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304481092] [2021-07-09 16:54:17,160 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:54:17,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:17,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:54:17,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:54:17,160 INFO L87 Difference]: Start difference. First operand 2675 states and 6971 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:18,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:18,147 INFO L93 Difference]: Finished difference Result 3154 states and 7933 transitions. [2021-07-09 16:54:18,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:54:18,147 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-07-09 16:54:18,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:18,151 INFO L225 Difference]: With dead ends: 3154 [2021-07-09 16:54:18,151 INFO L226 Difference]: Without dead ends: 3154 [2021-07-09 16:54:18,151 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 734.6ms TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:54:18,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3154 states. [2021-07-09 16:54:18,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3154 to 2564. [2021-07-09 16:54:18,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2563 states have (on average 2.6328521264143583) internal successors, (6748), 2563 states have internal predecessors, (6748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:18,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 6748 transitions. [2021-07-09 16:54:18,177 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 6748 transitions. Word has length 105 [2021-07-09 16:54:18,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:18,177 INFO L482 AbstractCegarLoop]: Abstraction has 2564 states and 6748 transitions. [2021-07-09 16:54:18,177 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:18,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 6748 transitions. [2021-07-09 16:54:18,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-07-09 16:54:18,179 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:18,179 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] [2021-07-09 16:54:18,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-07-09 16:54:18,180 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 16:54:18,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:18,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1880123667, now seen corresponding path program 1 times [2021-07-09 16:54:18,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:18,180 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942930628] [2021-07-09 16:54:18,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:18,783 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 16:54:18,784 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:18,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942930628] [2021-07-09 16:54:18,784 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942930628] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:18,784 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:18,784 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-09 16:54:18,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095244597] [2021-07-09 16:54:18,784 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-09 16:54:18,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:18,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-09 16:54:18,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2021-07-09 16:54:18,785 INFO L87 Difference]: Start difference. First operand 2564 states and 6748 transitions. Second operand has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:21,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:21,025 INFO L93 Difference]: Finished difference Result 3806 states and 9659 transitions. [2021-07-09 16:54:21,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 16:54:21,026 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-07-09 16:54:21,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:21,034 INFO L225 Difference]: With dead ends: 3806 [2021-07-09 16:54:21,034 INFO L226 Difference]: Without dead ends: 3649 [2021-07-09 16:54:21,034 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2095.6ms TimeCoverageRelationStatistics Valid=433, Invalid=2017, Unknown=0, NotChecked=0, Total=2450 [2021-07-09 16:54:21,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3649 states. [2021-07-09 16:54:21,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3649 to 2708. [2021-07-09 16:54:21,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2708 states, 2707 states have (on average 2.621352050240118) internal successors, (7096), 2707 states have internal predecessors, (7096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:21,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2708 states to 2708 states and 7096 transitions. [2021-07-09 16:54:21,077 INFO L78 Accepts]: Start accepts. Automaton has 2708 states and 7096 transitions. Word has length 111 [2021-07-09 16:54:21,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:21,077 INFO L482 AbstractCegarLoop]: Abstraction has 2708 states and 7096 transitions. [2021-07-09 16:54:21,077 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:21,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2708 states and 7096 transitions. [2021-07-09 16:54:21,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-07-09 16:54:21,079 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:21,080 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] [2021-07-09 16:54:21,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-07-09 16:54:21,080 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 16:54:21,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:21,080 INFO L82 PathProgramCache]: Analyzing trace with hash -297239833, now seen corresponding path program 2 times [2021-07-09 16:54:21,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:21,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901404142] [2021-07-09 16:54:21,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:21,687 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 16:54:21,687 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:21,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901404142] [2021-07-09 16:54:21,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901404142] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:21,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:21,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-09 16:54:21,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306447065] [2021-07-09 16:54:21,689 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-09 16:54:21,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:21,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-09 16:54:21,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-07-09 16:54:21,689 INFO L87 Difference]: Start difference. First operand 2708 states and 7096 transitions. Second operand has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:24,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:24,105 INFO L93 Difference]: Finished difference Result 3704 states and 9384 transitions. [2021-07-09 16:54:24,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 16:54:24,106 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-07-09 16:54:24,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:24,112 INFO L225 Difference]: With dead ends: 3704 [2021-07-09 16:54:24,112 INFO L226 Difference]: Without dead ends: 3613 [2021-07-09 16:54:24,112 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 2176.2ms TimeCoverageRelationStatistics Valid=450, Invalid=2100, Unknown=0, NotChecked=0, Total=2550 [2021-07-09 16:54:24,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3613 states. [2021-07-09 16:54:24,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3613 to 2672. [2021-07-09 16:54:24,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2672 states, 2671 states have (on average 2.6207412953949834) internal successors, (7000), 2671 states have internal predecessors, (7000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:24,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 7000 transitions. [2021-07-09 16:54:24,143 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 7000 transitions. Word has length 111 [2021-07-09 16:54:24,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:24,143 INFO L482 AbstractCegarLoop]: Abstraction has 2672 states and 7000 transitions. [2021-07-09 16:54:24,143 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:24,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 7000 transitions. [2021-07-09 16:54:24,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-07-09 16:54:24,145 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:24,146 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] [2021-07-09 16:54:24,146 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-07-09 16:54:24,146 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 16:54:24,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:24,146 INFO L82 PathProgramCache]: Analyzing trace with hash -2097400173, now seen corresponding path program 3 times [2021-07-09 16:54:24,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:24,146 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332651612] [2021-07-09 16:54:24,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:24,705 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 16:54:24,705 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:24,705 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332651612] [2021-07-09 16:54:24,705 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332651612] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:24,705 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:24,705 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-09 16:54:24,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145955575] [2021-07-09 16:54:24,706 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-09 16:54:24,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:24,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-09 16:54:24,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-07-09 16:54:24,706 INFO L87 Difference]: Start difference. First operand 2672 states and 7000 transitions. Second operand has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:26,358 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2021-07-09 16:54:26,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:26,970 INFO L93 Difference]: Finished difference Result 3643 states and 9251 transitions. [2021-07-09 16:54:26,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-09 16:54:26,971 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-07-09 16:54:26,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:26,976 INFO L225 Difference]: With dead ends: 3643 [2021-07-09 16:54:26,976 INFO L226 Difference]: Without dead ends: 3504 [2021-07-09 16:54:26,976 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 1981.3ms TimeCoverageRelationStatistics Valid=402, Invalid=1950, Unknown=0, NotChecked=0, Total=2352 [2021-07-09 16:54:26,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3504 states. [2021-07-09 16:54:27,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3504 to 2600. [2021-07-09 16:54:27,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2600 states, 2599 states have (on average 2.6194690265486726) internal successors, (6808), 2599 states have internal predecessors, (6808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:27,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 6808 transitions. [2021-07-09 16:54:27,007 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 6808 transitions. Word has length 111 [2021-07-09 16:54:27,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:27,007 INFO L482 AbstractCegarLoop]: Abstraction has 2600 states and 6808 transitions. [2021-07-09 16:54:27,007 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:27,007 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 6808 transitions. [2021-07-09 16:54:27,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-07-09 16:54:27,009 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:27,009 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] [2021-07-09 16:54:27,010 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-07-09 16:54:27,010 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 16:54:27,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:27,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1240236717, now seen corresponding path program 4 times [2021-07-09 16:54:27,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:27,010 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425772518] [2021-07-09 16:54:27,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:27,565 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 16:54:27,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:27,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425772518] [2021-07-09 16:54:27,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425772518] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:27,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:27,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-09 16:54:27,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563229987] [2021-07-09 16:54:27,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-09 16:54:27,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:27,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-09 16:54:27,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-07-09 16:54:27,567 INFO L87 Difference]: Start difference. First operand 2600 states and 6808 transitions. Second operand has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:28,956 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-07-09 16:54:29,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:29,695 INFO L93 Difference]: Finished difference Result 3577 states and 9072 transitions. [2021-07-09 16:54:29,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-09 16:54:29,695 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-07-09 16:54:29,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:29,700 INFO L225 Difference]: With dead ends: 3577 [2021-07-09 16:54:29,700 INFO L226 Difference]: Without dead ends: 3468 [2021-07-09 16:54:29,700 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1890.9ms TimeCoverageRelationStatistics Valid=405, Invalid=1947, Unknown=0, NotChecked=0, Total=2352 [2021-07-09 16:54:29,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3468 states. [2021-07-09 16:54:29,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3468 to 2564. [2021-07-09 16:54:29,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2563 states have (on average 2.6188060866172456) internal successors, (6712), 2563 states have internal predecessors, (6712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:29,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 6712 transitions. [2021-07-09 16:54:29,729 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 6712 transitions. Word has length 111 [2021-07-09 16:54:29,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:29,729 INFO L482 AbstractCegarLoop]: Abstraction has 2564 states and 6712 transitions. [2021-07-09 16:54:29,730 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:29,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 6712 transitions. [2021-07-09 16:54:29,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-07-09 16:54:29,732 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:29,732 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] [2021-07-09 16:54:29,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-07-09 16:54:29,732 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 16:54:29,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:29,733 INFO L82 PathProgramCache]: Analyzing trace with hash -2138132879, now seen corresponding path program 5 times [2021-07-09 16:54:29,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:29,733 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871880679] [2021-07-09 16:54:29,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:30,424 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 16:54:30,424 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:30,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871880679] [2021-07-09 16:54:30,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871880679] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:54:30,424 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:54:30,424 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-09 16:54:30,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430375253] [2021-07-09 16:54:30,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 16:54:30,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:30,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 16:54:30,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:54:30,425 INFO L87 Difference]: Start difference. First operand 2564 states and 6712 transitions. Second operand has 28 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:32,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:32,738 INFO L93 Difference]: Finished difference Result 3671 states and 9215 transitions. [2021-07-09 16:54:32,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 16:54:32,738 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-07-09 16:54:32,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:32,743 INFO L225 Difference]: With dead ends: 3671 [2021-07-09 16:54:32,743 INFO L226 Difference]: Without dead ends: 3472 [2021-07-09 16:54:32,743 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 2130.2ms TimeCoverageRelationStatistics Valid=464, Invalid=2398, Unknown=0, NotChecked=0, Total=2862 [2021-07-09 16:54:32,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3472 states. [2021-07-09 16:54:32,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3472 to 2456. [2021-07-09 16:54:32,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2456 states, 2455 states have (on average 2.616700610997963) internal successors, (6424), 2455 states have internal predecessors, (6424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:32,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2456 states to 2456 states and 6424 transitions. [2021-07-09 16:54:32,774 INFO L78 Accepts]: Start accepts. Automaton has 2456 states and 6424 transitions. Word has length 111 [2021-07-09 16:54:32,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:32,774 INFO L482 AbstractCegarLoop]: Abstraction has 2456 states and 6424 transitions. [2021-07-09 16:54:32,774 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:32,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2456 states and 6424 transitions. [2021-07-09 16:54:32,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-07-09 16:54:32,776 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:32,777 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] [2021-07-09 16:54:32,777 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-07-09 16:54:32,777 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 16:54:32,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:32,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1566479499, now seen corresponding path program 6 times [2021-07-09 16:54:32,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:32,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584872029] [2021-07-09 16:54:32,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-09 16:54:32,794 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-09 16:54:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-09 16:54:32,812 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-09 16:54:32,843 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-09 16:54:32,843 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-09 16:54:32,843 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-07-09 16:54:32,845 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 16:54:32,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 04:54:32 BasicIcfg [2021-07-09 16:54:32,922 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 16:54:32,923 INFO L168 Benchmark]: Toolchain (without parser) took 91188.59 ms. Allocated memory was 248.5 MB in the beginning and 780.1 MB in the end (delta: 531.6 MB). Free memory was 209.6 MB in the beginning and 474.6 MB in the end (delta: -265.1 MB). Peak memory consumption was 267.6 MB. Max. memory is 8.0 GB. [2021-07-09 16:54:32,923 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 248.5 MB. Free memory is still 229.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 16:54:32,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 641.79 ms. Allocated memory is still 248.5 MB. Free memory was 209.4 MB in the beginning and 190.0 MB in the end (delta: 19.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 8.0 GB. [2021-07-09 16:54:32,923 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.51 ms. Allocated memory is still 248.5 MB. Free memory was 190.0 MB in the beginning and 186.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:54:32,923 INFO L168 Benchmark]: Boogie Preprocessor took 31.31 ms. Allocated memory is still 248.5 MB. Free memory was 186.9 MB in the beginning and 184.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:54:32,923 INFO L168 Benchmark]: RCFGBuilder took 631.48 ms. Allocated memory was 248.5 MB in the beginning and 308.3 MB in the end (delta: 59.8 MB). Free memory was 184.3 MB in the beginning and 240.2 MB in the end (delta: -55.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 8.0 GB. [2021-07-09 16:54:32,923 INFO L168 Benchmark]: TraceAbstraction took 89826.38 ms. Allocated memory was 308.3 MB in the beginning and 780.1 MB in the end (delta: 471.9 MB). Free memory was 239.7 MB in the beginning and 474.6 MB in the end (delta: -235.0 MB). Peak memory consumption was 237.4 MB. Max. memory is 8.0 GB. [2021-07-09 16:54:32,923 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 248.5 MB. Free memory is still 229.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 641.79 ms. Allocated memory is still 248.5 MB. Free memory was 209.4 MB in the beginning and 190.0 MB in the end (delta: 19.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 49.51 ms. Allocated memory is still 248.5 MB. Free memory was 190.0 MB in the beginning and 186.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.31 ms. Allocated memory is still 248.5 MB. Free memory was 186.9 MB in the beginning and 184.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 631.48 ms. Allocated memory was 248.5 MB in the beginning and 308.3 MB in the end (delta: 59.8 MB). Free memory was 184.3 MB in the beginning and 240.2 MB in the end (delta: -55.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 89826.38 ms. Allocated memory was 308.3 MB in the beginning and 780.1 MB in the end (delta: 471.9 MB). Free memory was 239.7 MB in the beginning and 474.6 MB in the end (delta: -235.0 MB). Peak memory consumption was 237.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; VAL [t1={7:0}, t2={8:0}] [L1688] 0 struct device *my_dev; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1727] 0 return 0; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1733] 0 int ret = my_drv_init(); VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1734] COND TRUE 0 ret==0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1735] 0 int probe_ret; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1736] 0 struct my_data data; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1705] 0 data->shared.a = 0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1706] 0 data->shared.b = 0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1707] 0 data->shared.a VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1708] 0 data->shared.b VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1709] 0 int res = __VERIFIER_nondet_int(); VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1710] COND FALSE 0 !(\read(res)) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1712] 0 my_dev = &data->dev VAL [my_dev={9:24}, t1={7:0}, t2={8:0}] [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1690] 1 struct my_data *data; VAL [arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1690] 2 struct my_data *data; VAL [arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1693] 2 data->shared.a = 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1715] 0 return 0; VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1696] EXPR 2 data->shared.b [L1696] 2 int lb = data->shared.b; [L1737] 0 probe_ret = my_drv_probe(&data) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1738] COND TRUE 0 probe_ret==0 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1693] 1 data->shared.a = 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1696] EXPR 1 data->shared.b [L1696] 1 int lb = data->shared.b; [L1699] 1 data->shared.b = lb + 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1701] 1 return 0; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1699] 2 data->shared.b = lb + 1 VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1701] 2 return 0; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1721] 0 void *status; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1722] 0 \read(t1) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1722] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1723] 0 \read(t2) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1723] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1740] 0 data.shared.a VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1741] 0 data.shared.b VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1675] COND TRUE 0 !expression VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1675] 0 reach_error() VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 4 procedures, 164 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 89669.6ms, OverallIterations: 59, TraceHistogramMax: 1, EmptinessCheckTime: 227.7ms, AutomataDifference: 67921.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 117.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 11238 SDtfs, 33441 SDslu, 78686 SDs, 0 SdLazy, 38399 SolverSat, 2844 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18011.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2118 GetRequests, 187 SyntacticMatches, 64 SemanticMatches, 1867 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10420 ImplicationChecksByTransitivity, 54744.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4325occurred in iteration=4, InterpolantAutomatonStates: 1238, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2899.6ms AutomataMinimizationTime, 58 MinimizatonAttempts, 74173 StatesRemovedByMinimization, 57 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 105.9ms SsaConstructionTime, 872.7ms SatisfiabilityAnalysisTime, 16861.6ms InterpolantComputationTime, 5988 NumberOfCodeBlocks, 5988 NumberOfCodeBlocksAsserted, 59 NumberOfCheckSat, 5819 ConstructedInterpolants, 0 QuantifiedInterpolants, 79855 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 58 InterpolantComputations, 58 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 proved your program to be incorrect! Received shutdown request...