/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 18:33:45,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 18:33:45,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 18:33:45,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 18:33:45,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 18:33:45,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 18:33:45,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 18:33:45,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 18:33:45,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 18:33:45,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 18:33:45,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 18:33:45,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 18:33:45,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 18:33:45,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 18:33:45,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 18:33:45,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 18:33:45,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 18:33:45,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 18:33:45,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 18:33:45,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 18:33:45,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 18:33:45,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 18:33:45,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 18:33:45,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 18:33:45,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-11 18:33:45,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-11 18:33:45,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-11 18:33:45,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-11 18:33:45,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-11 18:33:45,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-11 18:33:45,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 18:33:45,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 18:33:45,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 18:33:45,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 18:33:45,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 18:33:45,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 18:33:45,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 18:33:45,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 18:33:45,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 18:33:45,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 18:33:45,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 18:33:45,743 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 [2020-11-11 18:33:45,802 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 18:33:45,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 18:33:45,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 18:33:45,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 18:33:45,806 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 18:33:45,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 18:33:45,807 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 18:33:45,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 18:33:45,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 18:33:45,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 18:33:45,809 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 18:33:45,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 18:33:45,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 18:33:45,810 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 18:33:45,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 18:33:45,810 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 18:33:45,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 18:33:45,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 18:33:45,811 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 18:33:45,811 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 18:33:45,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 18:33:45,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:33:45,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 18:33:45,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 18:33:45,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 18:33:45,812 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 18:33:45,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 18:33:45,813 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 18:33:45,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 18:33:45,813 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 18:33:46,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 18:33:46,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 18:33:46,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 18:33:46,304 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 18:33:46,305 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 18:33:46,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2020-11-11 18:33:46,398 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04d398ef3/103716a7855545a697771ad4dcd637b4/FLAG7cef53b5c [2020-11-11 18:33:47,235 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 18:33:47,236 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2020-11-11 18:33:47,262 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04d398ef3/103716a7855545a697771ad4dcd637b4/FLAG7cef53b5c [2020-11-11 18:33:47,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04d398ef3/103716a7855545a697771ad4dcd637b4 [2020-11-11 18:33:47,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 18:33:47,394 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 18:33:47,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 18:33:47,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 18:33:47,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 18:33:47,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:33:47" (1/1) ... [2020-11-11 18:33:47,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f916d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:33:47, skipping insertion in model container [2020-11-11 18:33:47,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:33:47" (1/1) ... [2020-11-11 18:33:47,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 18:33:47,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 18:33:48,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:33:48,329 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 18:33:48,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:33:48,805 INFO L208 MainTranslator]: Completed translation [2020-11-11 18:33:48,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:33:48 WrapperNode [2020-11-11 18:33:48,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 18:33:48,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 18:33:48,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 18:33:48,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 18:33:48,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:33:48" (1/1) ... [2020-11-11 18:33:48,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:33:48" (1/1) ... [2020-11-11 18:33:48,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 18:33:48,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 18:33:48,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 18:33:48,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 18:33:48,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:33:48" (1/1) ... [2020-11-11 18:33:48,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:33:48" (1/1) ... [2020-11-11 18:33:48,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:33:48" (1/1) ... [2020-11-11 18:33:48,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:33:48" (1/1) ... [2020-11-11 18:33:48,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:33:48" (1/1) ... [2020-11-11 18:33:48,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:33:48" (1/1) ... [2020-11-11 18:33:48,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:33:48" (1/1) ... [2020-11-11 18:33:48,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 18:33:48,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 18:33:48,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 18:33:48,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 18:33:48,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:33:48" (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 [2020-11-11 18:33:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 18:33:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-11 18:33:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-11 18:33:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-11 18:33:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 18:33:49,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 18:33:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-11-11 18:33:49,092 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-11-11 18:33:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 18:33:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 18:33:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 18:33:49,095 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 18:33:49,859 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 18:33:49,859 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-11-11 18:33:49,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:33:49 BoogieIcfgContainer [2020-11-11 18:33:49,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 18:33:49,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 18:33:49,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 18:33:49,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 18:33:49,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:33:47" (1/3) ... [2020-11-11 18:33:49,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc9e27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:33:49, skipping insertion in model container [2020-11-11 18:33:49,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:33:48" (2/3) ... [2020-11-11 18:33:49,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc9e27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:33:49, skipping insertion in model container [2020-11-11 18:33:49,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:33:49" (3/3) ... [2020-11-11 18:33:49,871 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2020-11-11 18:33:49,888 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 18:33:49,889 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 18:33:49,893 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-11-11 18:33:49,894 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 18:33:49,980 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,980 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,980 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,981 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,981 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,981 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,981 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,983 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,983 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,983 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,983 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,987 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,987 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,987 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,987 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,987 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,988 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,988 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,989 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,989 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,989 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,989 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,990 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,990 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,990 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,990 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,991 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,991 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,991 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,991 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,991 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,992 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,992 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,992 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,992 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,993 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,993 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,993 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,993 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,994 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,994 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,994 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,994 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,994 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,995 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,995 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,995 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,995 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,996 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,996 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,996 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,996 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,996 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,997 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,997 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,997 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,997 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,997 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,998 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,998 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,998 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,998 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,998 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,999 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,999 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,999 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,999 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:49,999 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,000 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,000 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,000 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,000 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,000 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,001 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,001 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,001 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,001 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,001 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,002 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,002 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,002 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,002 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,002 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,003 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,003 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,003 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,003 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,003 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,004 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,004 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,004 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,004 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,005 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,005 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,005 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,005 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,006 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,006 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,006 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,006 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,006 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,007 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,007 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,007 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,007 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,007 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,008 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,008 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,008 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,008 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,008 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,009 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,009 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,009 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,009 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,009 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,012 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,012 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,013 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,013 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,013 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,013 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,013 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,014 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,014 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,014 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,014 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,014 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,020 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,020 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,020 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,021 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,021 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,021 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,021 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,021 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,022 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,022 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,022 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,022 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:33:50,032 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-11-11 18:33:50,047 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-11 18:33:50,071 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 18:33:50,072 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 18:33:50,072 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 18:33:50,072 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 18:33:50,072 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 18:33:50,072 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 18:33:50,072 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 18:33:50,073 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 18:33:50,090 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 179 places, 189 transitions, 400 flow [2020-11-11 18:33:50,739 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 10453 states, 10442 states have (on average 2.894560429036583) internal successors, (30225), 10452 states have internal predecessors, (30225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:33:50,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 10453 states, 10442 states have (on average 2.894560429036583) internal successors, (30225), 10452 states have internal predecessors, (30225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:33:50,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-11 18:33:50,787 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:33:50,788 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:33:50,788 INFO L429 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]=== [2020-11-11 18:33:50,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:33:50,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1096708820, now seen corresponding path program 1 times [2020-11-11 18:33:50,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:33:50,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273378997] [2020-11-11 18:33:50,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:33:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:33:51,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:33:51,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273378997] [2020-11-11 18:33:51,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:33:51,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:33:51,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693619566] [2020-11-11 18:33:51,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:33:51,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:33:51,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:33:51,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:33:51,402 INFO L87 Difference]: Start difference. First operand has 10453 states, 10442 states have (on average 2.894560429036583) internal successors, (30225), 10452 states have internal predecessors, (30225), 0 states have call successors, (0), 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 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:33:51,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:33:51,843 INFO L93 Difference]: Finished difference Result 9542 states and 26721 transitions. [2020-11-11 18:33:51,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:33:51,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2020-11-11 18:33:51,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:33:51,916 INFO L225 Difference]: With dead ends: 9542 [2020-11-11 18:33:51,916 INFO L226 Difference]: Without dead ends: 7950 [2020-11-11 18:33:51,918 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:33:52,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7950 states. [2020-11-11 18:33:52,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7950 to 7949. [2020-11-11 18:33:52,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7949 states, 7942 states have (on average 2.793754721732561) internal successors, (22188), 7948 states have internal predecessors, (22188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:33:52,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7949 states to 7949 states and 22188 transitions. [2020-11-11 18:33:52,696 INFO L78 Accepts]: Start accepts. Automaton has 7949 states and 22188 transitions. Word has length 38 [2020-11-11 18:33:52,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:33:52,697 INFO L481 AbstractCegarLoop]: Abstraction has 7949 states and 22188 transitions. [2020-11-11 18:33:52,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:33:52,698 INFO L276 IsEmpty]: Start isEmpty. Operand 7949 states and 22188 transitions. [2020-11-11 18:33:52,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-11 18:33:52,699 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:33:52,699 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:33:52,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 18:33:52,700 INFO L429 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]=== [2020-11-11 18:33:52,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:33:52,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1273343855, now seen corresponding path program 1 times [2020-11-11 18:33:52,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:33:52,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951312363] [2020-11-11 18:33:52,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:33:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:33:52,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:33:52,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951312363] [2020-11-11 18:33:52,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:33:52,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:33:52,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551735775] [2020-11-11 18:33:52,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:33:52,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:33:52,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:33:52,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:33:52,938 INFO L87 Difference]: Start difference. First operand 7949 states and 22188 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:33:53,141 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-11-11 18:33:53,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:33:53,355 INFO L93 Difference]: Finished difference Result 7949 states and 22188 transitions. [2020-11-11 18:33:53,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:33:53,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2020-11-11 18:33:53,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:33:53,435 INFO L225 Difference]: With dead ends: 7949 [2020-11-11 18:33:53,435 INFO L226 Difference]: Without dead ends: 7949 [2020-11-11 18:33:53,436 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-11-11 18:33:53,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7949 states. [2020-11-11 18:33:53,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7949 to 7945. [2020-11-11 18:33:53,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7945 states, 7939 states have (on average 2.794306587731452) internal successors, (22184), 7944 states have internal predecessors, (22184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:33:53,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7945 states to 7945 states and 22184 transitions. [2020-11-11 18:33:53,819 INFO L78 Accepts]: Start accepts. Automaton has 7945 states and 22184 transitions. Word has length 44 [2020-11-11 18:33:53,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:33:53,820 INFO L481 AbstractCegarLoop]: Abstraction has 7945 states and 22184 transitions. [2020-11-11 18:33:53,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:33:53,821 INFO L276 IsEmpty]: Start isEmpty. Operand 7945 states and 22184 transitions. [2020-11-11 18:33:53,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-11-11 18:33:53,835 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:33:53,835 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:33:53,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 18:33:53,836 INFO L429 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]=== [2020-11-11 18:33:53,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:33:53,839 INFO L82 PathProgramCache]: Analyzing trace with hash -5672587, now seen corresponding path program 1 times [2020-11-11 18:33:53,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:33:53,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076593305] [2020-11-11 18:33:53,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:33:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:33:54,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:33:54,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076593305] [2020-11-11 18:33:54,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:33:54,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:33:54,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813506382] [2020-11-11 18:33:54,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:33:54,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:33:54,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:33:54,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:33:54,173 INFO L87 Difference]: Start difference. First operand 7945 states and 22184 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:33:54,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:33:54,714 INFO L93 Difference]: Finished difference Result 11388 states and 31670 transitions. [2020-11-11 18:33:54,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-11 18:33:54,715 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2020-11-11 18:33:54,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:33:54,756 INFO L225 Difference]: With dead ends: 11388 [2020-11-11 18:33:54,756 INFO L226 Difference]: Without dead ends: 11388 [2020-11-11 18:33:54,758 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-11-11 18:33:54,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11388 states. [2020-11-11 18:33:55,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11388 to 8651. [2020-11-11 18:33:55,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8651 states, 8646 states have (on average 2.79088595882489) internal successors, (24130), 8650 states have internal predecessors, (24130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:33:55,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8651 states to 8651 states and 24130 transitions. [2020-11-11 18:33:55,178 INFO L78 Accepts]: Start accepts. Automaton has 8651 states and 24130 transitions. Word has length 62 [2020-11-11 18:33:55,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:33:55,179 INFO L481 AbstractCegarLoop]: Abstraction has 8651 states and 24130 transitions. [2020-11-11 18:33:55,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:33:55,179 INFO L276 IsEmpty]: Start isEmpty. Operand 8651 states and 24130 transitions. [2020-11-11 18:33:55,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-11 18:33:55,184 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:33:55,184 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:33:55,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 18:33:55,184 INFO L429 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]=== [2020-11-11 18:33:55,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:33:55,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1235337706, now seen corresponding path program 1 times [2020-11-11 18:33:55,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:33:55,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503472903] [2020-11-11 18:33:55,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:33:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:33:55,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:33:55,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503472903] [2020-11-11 18:33:55,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:33:55,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:33:55,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205832856] [2020-11-11 18:33:55,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:33:55,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:33:55,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:33:55,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:33:55,327 INFO L87 Difference]: Start difference. First operand 8651 states and 24130 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:33:55,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:33:55,769 INFO L93 Difference]: Finished difference Result 12094 states and 33455 transitions. [2020-11-11 18:33:55,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-11 18:33:55,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2020-11-11 18:33:55,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:33:55,800 INFO L225 Difference]: With dead ends: 12094 [2020-11-11 18:33:55,800 INFO L226 Difference]: Without dead ends: 10305 [2020-11-11 18:33:55,800 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-11-11 18:33:55,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10305 states. [2020-11-11 18:33:56,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10305 to 9661. [2020-11-11 18:33:56,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9661 states, 9657 states have (on average 2.788857823340582) internal successors, (26932), 9660 states have internal predecessors, (26932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:33:56,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9661 states to 9661 states and 26932 transitions. [2020-11-11 18:33:56,236 INFO L78 Accepts]: Start accepts. Automaton has 9661 states and 26932 transitions. Word has length 68 [2020-11-11 18:33:56,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:33:56,237 INFO L481 AbstractCegarLoop]: Abstraction has 9661 states and 26932 transitions. [2020-11-11 18:33:56,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:33:56,237 INFO L276 IsEmpty]: Start isEmpty. Operand 9661 states and 26932 transitions. [2020-11-11 18:33:56,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-11-11 18:33:56,251 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:33:56,251 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:33:56,251 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 18:33:56,252 INFO L429 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]=== [2020-11-11 18:33:56,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:33:56,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1925007935, now seen corresponding path program 1 times [2020-11-11 18:33:56,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:33:56,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296813258] [2020-11-11 18:33:56,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:33:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:33:56,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:33:56,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296813258] [2020-11-11 18:33:56,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:33:56,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-11 18:33:56,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564085799] [2020-11-11 18:33:56,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-11 18:33:56,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:33:56,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-11 18:33:56,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-11 18:33:56,418 INFO L87 Difference]: Start difference. First operand 9661 states and 26932 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:33:56,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:33:56,479 INFO L93 Difference]: Finished difference Result 3192 states and 8610 transitions. [2020-11-11 18:33:56,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-11 18:33:56,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2020-11-11 18:33:56,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:33:56,489 INFO L225 Difference]: With dead ends: 3192 [2020-11-11 18:33:56,490 INFO L226 Difference]: Without dead ends: 3192 [2020-11-11 18:33:56,490 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-11 18:33:56,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2020-11-11 18:33:56,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 3192. [2020-11-11 18:33:56,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3192 states, 3190 states have (on average 2.699059561128527) internal successors, (8610), 3191 states have internal predecessors, (8610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:33:56,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 8610 transitions. [2020-11-11 18:33:56,605 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 8610 transitions. Word has length 76 [2020-11-11 18:33:56,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:33:56,606 INFO L481 AbstractCegarLoop]: Abstraction has 3192 states and 8610 transitions. [2020-11-11 18:33:56,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:33:56,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 8610 transitions. [2020-11-11 18:33:56,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:33:56,617 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:33:56,617 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:33:56,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 18:33:56,617 INFO L429 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]=== [2020-11-11 18:33:56,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:33:56,618 INFO L82 PathProgramCache]: Analyzing trace with hash -416784101, now seen corresponding path program 1 times [2020-11-11 18:33:56,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:33:56,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108290137] [2020-11-11 18:33:56,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:33:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:33:57,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:33:57,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108290137] [2020-11-11 18:33:57,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:33:57,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:33:57,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330119267] [2020-11-11 18:33:57,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:33:57,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:33:57,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:33:57,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:33:57,635 INFO L87 Difference]: Start difference. First operand 3192 states and 8610 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:02,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:34:02,779 INFO L93 Difference]: Finished difference Result 8318 states and 22365 transitions. [2020-11-11 18:34:02,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-11-11 18:34:02,780 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:34:02,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:34:02,800 INFO L225 Difference]: With dead ends: 8318 [2020-11-11 18:34:02,800 INFO L226 Difference]: Without dead ends: 8228 [2020-11-11 18:34:02,803 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1685, Invalid=3427, Unknown=0, NotChecked=0, Total=5112 [2020-11-11 18:34:02,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8228 states. [2020-11-11 18:34:02,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8228 to 6342. [2020-11-11 18:34:02,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6342 states, 6340 states have (on average 2.7446372239747636) internal successors, (17401), 6341 states have internal predecessors, (17401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:03,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6342 states to 6342 states and 17401 transitions. [2020-11-11 18:34:03,003 INFO L78 Accepts]: Start accepts. Automaton has 6342 states and 17401 transitions. Word has length 110 [2020-11-11 18:34:03,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:34:03,004 INFO L481 AbstractCegarLoop]: Abstraction has 6342 states and 17401 transitions. [2020-11-11 18:34:03,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:03,005 INFO L276 IsEmpty]: Start isEmpty. Operand 6342 states and 17401 transitions. [2020-11-11 18:34:03,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:34:03,028 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:34:03,029 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:34:03,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-11 18:34:03,029 INFO L429 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]=== [2020-11-11 18:34:03,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:34:03,030 INFO L82 PathProgramCache]: Analyzing trace with hash -2066993775, now seen corresponding path program 1 times [2020-11-11 18:34:03,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:34:03,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760904098] [2020-11-11 18:34:03,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:34:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:34:03,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:34:03,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760904098] [2020-11-11 18:34:03,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:34:03,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:34:03,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670990825] [2020-11-11 18:34:03,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:34:03,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:34:03,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:34:03,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:34:03,878 INFO L87 Difference]: Start difference. First operand 6342 states and 17401 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:05,433 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-11-11 18:34:05,635 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-11-11 18:34:05,888 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-11-11 18:34:06,189 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-11-11 18:34:06,493 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-11-11 18:34:06,786 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-11-11 18:34:07,151 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-11-11 18:34:07,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:34:07,611 INFO L93 Difference]: Finished difference Result 8017 states and 21634 transitions. [2020-11-11 18:34:07,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-11 18:34:07,612 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:34:07,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:34:07,650 INFO L225 Difference]: With dead ends: 8017 [2020-11-11 18:34:07,651 INFO L226 Difference]: Without dead ends: 8017 [2020-11-11 18:34:07,652 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=463, Invalid=1607, Unknown=0, NotChecked=0, Total=2070 [2020-11-11 18:34:07,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8017 states. [2020-11-11 18:34:07,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8017 to 6420. [2020-11-11 18:34:07,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6420 states, 6418 states have (on average 2.7346525397320036) internal successors, (17551), 6419 states have internal predecessors, (17551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:07,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6420 states to 6420 states and 17551 transitions. [2020-11-11 18:34:07,905 INFO L78 Accepts]: Start accepts. Automaton has 6420 states and 17551 transitions. Word has length 110 [2020-11-11 18:34:07,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:34:07,906 INFO L481 AbstractCegarLoop]: Abstraction has 6420 states and 17551 transitions. [2020-11-11 18:34:07,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:07,906 INFO L276 IsEmpty]: Start isEmpty. Operand 6420 states and 17551 transitions. [2020-11-11 18:34:07,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:34:07,925 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:34:07,925 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:34:07,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-11 18:34:07,926 INFO L429 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]=== [2020-11-11 18:34:07,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:34:07,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1942843745, now seen corresponding path program 2 times [2020-11-11 18:34:07,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:34:07,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587785851] [2020-11-11 18:34:07,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:34:08,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:34:08,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:34:08,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587785851] [2020-11-11 18:34:08,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:34:08,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-11-11 18:34:08,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383066960] [2020-11-11 18:34:08,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-11 18:34:08,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:34:08,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-11 18:34:08,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-11-11 18:34:08,735 INFO L87 Difference]: Start difference. First operand 6420 states and 17551 transitions. Second operand has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:09,963 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-11-11 18:34:10,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:34:10,676 INFO L93 Difference]: Finished difference Result 8127 states and 21725 transitions. [2020-11-11 18:34:10,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-11 18:34:10,678 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:34:10,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:34:10,700 INFO L225 Difference]: With dead ends: 8127 [2020-11-11 18:34:10,700 INFO L226 Difference]: Without dead ends: 8127 [2020-11-11 18:34:10,707 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=311, Invalid=745, Unknown=0, NotChecked=0, Total=1056 [2020-11-11 18:34:10,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8127 states. [2020-11-11 18:34:10,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8127 to 7538. [2020-11-11 18:34:10,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7538 states, 7536 states have (on average 2.706475583864119) internal successors, (20396), 7537 states have internal predecessors, (20396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:10,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7538 states to 7538 states and 20396 transitions. [2020-11-11 18:34:10,956 INFO L78 Accepts]: Start accepts. Automaton has 7538 states and 20396 transitions. Word has length 110 [2020-11-11 18:34:10,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:34:10,957 INFO L481 AbstractCegarLoop]: Abstraction has 7538 states and 20396 transitions. [2020-11-11 18:34:10,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:10,957 INFO L276 IsEmpty]: Start isEmpty. Operand 7538 states and 20396 transitions. [2020-11-11 18:34:10,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:34:10,979 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:34:10,980 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:34:10,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-11 18:34:10,980 INFO L429 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]=== [2020-11-11 18:34:10,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:34:10,981 INFO L82 PathProgramCache]: Analyzing trace with hash -831207169, now seen corresponding path program 3 times [2020-11-11 18:34:10,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:34:10,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120729345] [2020-11-11 18:34:10,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:34:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:34:11,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:34:11,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120729345] [2020-11-11 18:34:11,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:34:11,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-11-11 18:34:11,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348097107] [2020-11-11 18:34:11,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-11 18:34:11,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:34:11,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-11 18:34:11,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-11-11 18:34:11,693 INFO L87 Difference]: Start difference. First operand 7538 states and 20396 transitions. Second operand has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:13,740 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-11-11 18:34:13,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:34:13,748 INFO L93 Difference]: Finished difference Result 8728 states and 22982 transitions. [2020-11-11 18:34:13,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-11 18:34:13,749 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:34:13,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:34:13,762 INFO L225 Difference]: With dead ends: 8728 [2020-11-11 18:34:13,762 INFO L226 Difference]: Without dead ends: 8728 [2020-11-11 18:34:13,763 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2020-11-11 18:34:13,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8728 states. [2020-11-11 18:34:13,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8728 to 7745. [2020-11-11 18:34:13,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7745 states, 7743 states have (on average 2.6968875113005297) internal successors, (20882), 7744 states have internal predecessors, (20882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:13,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7745 states to 7745 states and 20882 transitions. [2020-11-11 18:34:13,992 INFO L78 Accepts]: Start accepts. Automaton has 7745 states and 20882 transitions. Word has length 110 [2020-11-11 18:34:13,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:34:13,992 INFO L481 AbstractCegarLoop]: Abstraction has 7745 states and 20882 transitions. [2020-11-11 18:34:13,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:13,993 INFO L276 IsEmpty]: Start isEmpty. Operand 7745 states and 20882 transitions. [2020-11-11 18:34:14,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:34:14,023 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:34:14,023 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:34:14,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-11 18:34:14,024 INFO L429 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]=== [2020-11-11 18:34:14,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:34:14,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1667110431, now seen corresponding path program 4 times [2020-11-11 18:34:14,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:34:14,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025988256] [2020-11-11 18:34:14,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:34:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:34:14,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:34:14,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025988256] [2020-11-11 18:34:14,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:34:14,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-11-11 18:34:14,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991537166] [2020-11-11 18:34:14,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-11 18:34:14,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:34:14,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-11 18:34:14,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-11-11 18:34:14,691 INFO L87 Difference]: Start difference. First operand 7745 states and 20882 transitions. Second operand has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:15,571 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-11-11 18:34:15,759 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-11-11 18:34:16,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:34:16,552 INFO L93 Difference]: Finished difference Result 8984 states and 23562 transitions. [2020-11-11 18:34:16,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-11 18:34:16,553 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:34:16,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:34:16,563 INFO L225 Difference]: With dead ends: 8984 [2020-11-11 18:34:16,564 INFO L226 Difference]: Without dead ends: 8984 [2020-11-11 18:34:16,564 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=329, Invalid=861, Unknown=0, NotChecked=0, Total=1190 [2020-11-11 18:34:16,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8984 states. [2020-11-11 18:34:16,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8984 to 7678. [2020-11-11 18:34:16,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7678 states, 7676 states have (on average 2.7003647733194374) internal successors, (20728), 7677 states have internal predecessors, (20728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:16,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7678 states to 7678 states and 20728 transitions. [2020-11-11 18:34:16,795 INFO L78 Accepts]: Start accepts. Automaton has 7678 states and 20728 transitions. Word has length 110 [2020-11-11 18:34:16,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:34:16,795 INFO L481 AbstractCegarLoop]: Abstraction has 7678 states and 20728 transitions. [2020-11-11 18:34:16,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:16,796 INFO L276 IsEmpty]: Start isEmpty. Operand 7678 states and 20728 transitions. [2020-11-11 18:34:16,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:34:16,812 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:34:16,812 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:34:16,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-11 18:34:16,813 INFO L429 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]=== [2020-11-11 18:34:16,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:34:16,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1510430157, now seen corresponding path program 5 times [2020-11-11 18:34:16,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:34:16,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361230381] [2020-11-11 18:34:16,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:34:16,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:34:17,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:34:17,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361230381] [2020-11-11 18:34:17,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:34:17,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:34:17,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407527418] [2020-11-11 18:34:17,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:34:17,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:34:17,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:34:17,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:34:17,579 INFO L87 Difference]: Start difference. First operand 7678 states and 20728 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:19,188 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-11 18:34:19,376 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-11-11 18:34:19,631 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:34:19,942 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-11-11 18:34:20,272 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2020-11-11 18:34:20,645 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2020-11-11 18:34:20,993 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2020-11-11 18:34:21,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:34:21,466 INFO L93 Difference]: Finished difference Result 10210 states and 26890 transitions. [2020-11-11 18:34:21,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-11 18:34:21,467 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:34:21,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:34:21,478 INFO L225 Difference]: With dead ends: 10210 [2020-11-11 18:34:21,478 INFO L226 Difference]: Without dead ends: 10210 [2020-11-11 18:34:21,479 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=463, Invalid=1607, Unknown=0, NotChecked=0, Total=2070 [2020-11-11 18:34:21,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10210 states. [2020-11-11 18:34:21,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10210 to 7769. [2020-11-11 18:34:21,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7769 states, 7767 states have (on average 2.6929316338354576) internal successors, (20916), 7768 states have internal predecessors, (20916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:21,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7769 states to 7769 states and 20916 transitions. [2020-11-11 18:34:21,719 INFO L78 Accepts]: Start accepts. Automaton has 7769 states and 20916 transitions. Word has length 110 [2020-11-11 18:34:21,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:34:21,719 INFO L481 AbstractCegarLoop]: Abstraction has 7769 states and 20916 transitions. [2020-11-11 18:34:21,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:21,720 INFO L276 IsEmpty]: Start isEmpty. Operand 7769 states and 20916 transitions. [2020-11-11 18:34:21,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:34:21,737 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:34:21,737 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:34:21,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-11 18:34:21,737 INFO L429 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]=== [2020-11-11 18:34:21,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:34:21,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1888159601, now seen corresponding path program 6 times [2020-11-11 18:34:21,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:34:21,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699653091] [2020-11-11 18:34:21,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:34:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:34:22,340 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 17 [2020-11-11 18:34:22,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:34:22,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699653091] [2020-11-11 18:34:22,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:34:22,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-11-11 18:34:22,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066799262] [2020-11-11 18:34:22,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-11 18:34:22,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:34:22,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-11 18:34:22,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-11-11 18:34:22,526 INFO L87 Difference]: Start difference. First operand 7769 states and 20916 transitions. Second operand has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:24,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:34:24,438 INFO L93 Difference]: Finished difference Result 10093 states and 26319 transitions. [2020-11-11 18:34:24,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-11 18:34:24,439 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:34:24,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:34:24,455 INFO L225 Difference]: With dead ends: 10093 [2020-11-11 18:34:24,455 INFO L226 Difference]: Without dead ends: 10093 [2020-11-11 18:34:24,456 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2020-11-11 18:34:24,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10093 states. [2020-11-11 18:34:24,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10093 to 8274. [2020-11-11 18:34:24,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8274 states, 8272 states have (on average 2.6843568665377178) internal successors, (22205), 8273 states have internal predecessors, (22205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:24,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8274 states to 8274 states and 22205 transitions. [2020-11-11 18:34:24,710 INFO L78 Accepts]: Start accepts. Automaton has 8274 states and 22205 transitions. Word has length 110 [2020-11-11 18:34:24,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:34:24,711 INFO L481 AbstractCegarLoop]: Abstraction has 8274 states and 22205 transitions. [2020-11-11 18:34:24,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:24,711 INFO L276 IsEmpty]: Start isEmpty. Operand 8274 states and 22205 transitions. [2020-11-11 18:34:24,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:34:24,736 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:34:24,736 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:34:24,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-11 18:34:24,736 INFO L429 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]=== [2020-11-11 18:34:24,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:34:24,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1997630803, now seen corresponding path program 7 times [2020-11-11 18:34:24,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:34:24,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723208670] [2020-11-11 18:34:24,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:34:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:34:25,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:34:25,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723208670] [2020-11-11 18:34:25,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:34:25,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:34:25,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174294318] [2020-11-11 18:34:25,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:34:25,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:34:25,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:34:25,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:34:25,455 INFO L87 Difference]: Start difference. First operand 8274 states and 22205 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:27,023 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-11 18:34:27,210 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-11-11 18:34:27,462 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:34:27,755 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-11-11 18:34:28,081 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-11-11 18:34:28,431 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2020-11-11 18:34:28,721 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-11-11 18:34:29,090 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2020-11-11 18:34:29,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:34:29,595 INFO L93 Difference]: Finished difference Result 11979 states and 31203 transitions. [2020-11-11 18:34:29,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-11-11 18:34:29,596 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:34:29,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:34:29,616 INFO L225 Difference]: With dead ends: 11979 [2020-11-11 18:34:29,616 INFO L226 Difference]: Without dead ends: 11979 [2020-11-11 18:34:29,618 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=493, Invalid=1669, Unknown=0, NotChecked=0, Total=2162 [2020-11-11 18:34:29,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11979 states. [2020-11-11 18:34:29,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11979 to 8365. [2020-11-11 18:34:29,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8365 states, 8363 states have (on average 2.6869544421858187) internal successors, (22471), 8364 states have internal predecessors, (22471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:29,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8365 states to 8365 states and 22471 transitions. [2020-11-11 18:34:29,888 INFO L78 Accepts]: Start accepts. Automaton has 8365 states and 22471 transitions. Word has length 110 [2020-11-11 18:34:29,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:34:29,889 INFO L481 AbstractCegarLoop]: Abstraction has 8365 states and 22471 transitions. [2020-11-11 18:34:29,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:29,889 INFO L276 IsEmpty]: Start isEmpty. Operand 8365 states and 22471 transitions. [2020-11-11 18:34:29,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:34:29,902 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:34:29,902 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:34:29,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-11 18:34:29,902 INFO L429 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]=== [2020-11-11 18:34:29,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:34:29,903 INFO L82 PathProgramCache]: Analyzing trace with hash 628859475, now seen corresponding path program 8 times [2020-11-11 18:34:29,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:34:29,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735681708] [2020-11-11 18:34:29,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:34:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:34:30,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:34:30,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735681708] [2020-11-11 18:34:30,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:34:30,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-11-11 18:34:30,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426533608] [2020-11-11 18:34:30,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-11 18:34:30,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:34:30,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-11 18:34:30,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-11-11 18:34:30,624 INFO L87 Difference]: Start difference. First operand 8365 states and 22471 transitions. Second operand has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:31,636 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-11-11 18:34:31,859 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-11-11 18:34:32,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:34:32,774 INFO L93 Difference]: Finished difference Result 10721 states and 27600 transitions. [2020-11-11 18:34:32,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-11 18:34:32,775 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:34:32,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:34:32,789 INFO L225 Difference]: With dead ends: 10721 [2020-11-11 18:34:32,789 INFO L226 Difference]: Without dead ends: 10721 [2020-11-11 18:34:32,790 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=329, Invalid=861, Unknown=0, NotChecked=0, Total=1190 [2020-11-11 18:34:32,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10721 states. [2020-11-11 18:34:33,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10721 to 8454. [2020-11-11 18:34:33,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8454 states, 8452 states have (on average 2.6843350686228113) internal successors, (22688), 8453 states have internal predecessors, (22688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:33,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8454 states to 8454 states and 22688 transitions. [2020-11-11 18:34:33,050 INFO L78 Accepts]: Start accepts. Automaton has 8454 states and 22688 transitions. Word has length 110 [2020-11-11 18:34:33,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:34:33,051 INFO L481 AbstractCegarLoop]: Abstraction has 8454 states and 22688 transitions. [2020-11-11 18:34:33,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:33,051 INFO L276 IsEmpty]: Start isEmpty. Operand 8454 states and 22688 transitions. [2020-11-11 18:34:33,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:34:33,067 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:34:33,067 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:34:33,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-11 18:34:33,067 INFO L429 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]=== [2020-11-11 18:34:33,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:34:33,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1122040141, now seen corresponding path program 9 times [2020-11-11 18:34:33,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:34:33,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385090646] [2020-11-11 18:34:33,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:34:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:34:33,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:34:33,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385090646] [2020-11-11 18:34:33,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:34:33,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:34:33,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846724750] [2020-11-11 18:34:33,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:34:33,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:34:33,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:34:33,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:34:33,893 INFO L87 Difference]: Start difference. First operand 8454 states and 22688 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:35,548 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-11 18:34:35,747 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-11-11 18:34:35,997 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:34:36,280 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-11-11 18:34:36,575 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-11-11 18:34:36,890 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-11-11 18:34:37,222 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2020-11-11 18:34:37,520 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-11-11 18:34:37,914 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2020-11-11 18:34:38,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:34:38,426 INFO L93 Difference]: Finished difference Result 12524 states and 32665 transitions. [2020-11-11 18:34:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-11 18:34:38,427 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:34:38,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:34:38,441 INFO L225 Difference]: With dead ends: 12524 [2020-11-11 18:34:38,441 INFO L226 Difference]: Without dead ends: 12524 [2020-11-11 18:34:38,442 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=522, Invalid=1734, Unknown=0, NotChecked=0, Total=2256 [2020-11-11 18:34:38,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12524 states. [2020-11-11 18:34:38,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12524 to 8636. [2020-11-11 18:34:38,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8636 states, 8634 states have (on average 2.6893676164002778) internal successors, (23220), 8635 states have internal predecessors, (23220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:38,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8636 states to 8636 states and 23220 transitions. [2020-11-11 18:34:38,666 INFO L78 Accepts]: Start accepts. Automaton has 8636 states and 23220 transitions. Word has length 110 [2020-11-11 18:34:38,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:34:38,666 INFO L481 AbstractCegarLoop]: Abstraction has 8636 states and 23220 transitions. [2020-11-11 18:34:38,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:38,666 INFO L276 IsEmpty]: Start isEmpty. Operand 8636 states and 23220 transitions. [2020-11-11 18:34:38,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:34:38,680 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:34:38,680 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:34:38,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-11 18:34:38,681 INFO L429 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]=== [2020-11-11 18:34:38,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:34:38,681 INFO L82 PathProgramCache]: Analyzing trace with hash 4919149, now seen corresponding path program 10 times [2020-11-11 18:34:38,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:34:38,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064666118] [2020-11-11 18:34:38,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:34:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:34:39,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:34:39,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064666118] [2020-11-11 18:34:39,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:34:39,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-11-11 18:34:39,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149010686] [2020-11-11 18:34:39,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-11 18:34:39,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:34:39,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-11 18:34:39,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-11-11 18:34:39,293 INFO L87 Difference]: Start difference. First operand 8636 states and 23220 transitions. Second operand has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:40,172 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-11-11 18:34:40,374 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-11-11 18:34:41,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:34:41,178 INFO L93 Difference]: Finished difference Result 11170 states and 28783 transitions. [2020-11-11 18:34:41,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-11 18:34:41,179 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:34:41,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:34:41,191 INFO L225 Difference]: With dead ends: 11170 [2020-11-11 18:34:41,191 INFO L226 Difference]: Without dead ends: 11170 [2020-11-11 18:34:41,192 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=318, Invalid=872, Unknown=0, NotChecked=0, Total=1190 [2020-11-11 18:34:41,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11170 states. [2020-11-11 18:34:41,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11170 to 8814. [2020-11-11 18:34:41,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8814 states, 8812 states have (on average 2.6842941443486157) internal successors, (23654), 8813 states have internal predecessors, (23654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:41,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8814 states to 8814 states and 23654 transitions. [2020-11-11 18:34:41,387 INFO L78 Accepts]: Start accepts. Automaton has 8814 states and 23654 transitions. Word has length 110 [2020-11-11 18:34:41,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:34:41,387 INFO L481 AbstractCegarLoop]: Abstraction has 8814 states and 23654 transitions. [2020-11-11 18:34:41,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:41,387 INFO L276 IsEmpty]: Start isEmpty. Operand 8814 states and 23654 transitions. [2020-11-11 18:34:41,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:34:41,400 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:34:41,401 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:34:41,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-11 18:34:41,401 INFO L429 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]=== [2020-11-11 18:34:41,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:34:41,402 INFO L82 PathProgramCache]: Analyzing trace with hash 275129139, now seen corresponding path program 11 times [2020-11-11 18:34:41,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:34:41,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735813119] [2020-11-11 18:34:41,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:34:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:34:42,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:34:42,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735813119] [2020-11-11 18:34:42,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:34:42,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:34:42,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824812949] [2020-11-11 18:34:42,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:34:42,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:34:42,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:34:42,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:34:42,257 INFO L87 Difference]: Start difference. First operand 8814 states and 23654 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:43,480 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-11-11 18:34:43,939 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-11 18:34:44,127 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-11-11 18:34:44,350 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-11-11 18:34:44,605 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2020-11-11 18:34:44,830 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-11-11 18:34:45,113 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-11-11 18:34:45,432 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:34:45,813 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:34:46,108 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2020-11-11 18:34:46,509 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2020-11-11 18:34:47,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:34:47,078 INFO L93 Difference]: Finished difference Result 13209 states and 34458 transitions. [2020-11-11 18:34:47,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-11-11 18:34:47,078 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:34:47,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:34:47,097 INFO L225 Difference]: With dead ends: 13209 [2020-11-11 18:34:47,098 INFO L226 Difference]: Without dead ends: 13209 [2020-11-11 18:34:47,099 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=550, Invalid=1802, Unknown=0, NotChecked=0, Total=2352 [2020-11-11 18:34:47,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13209 states. [2020-11-11 18:34:47,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13209 to 8905. [2020-11-11 18:34:47,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8905 states, 8903 states have (on average 2.68673480849152) internal successors, (23920), 8904 states have internal predecessors, (23920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:47,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8905 states to 8905 states and 23920 transitions. [2020-11-11 18:34:47,359 INFO L78 Accepts]: Start accepts. Automaton has 8905 states and 23920 transitions. Word has length 110 [2020-11-11 18:34:47,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:34:47,359 INFO L481 AbstractCegarLoop]: Abstraction has 8905 states and 23920 transitions. [2020-11-11 18:34:47,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:47,360 INFO L276 IsEmpty]: Start isEmpty. Operand 8905 states and 23920 transitions. [2020-11-11 18:34:47,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:34:47,374 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:34:47,374 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:34:47,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-11 18:34:47,375 INFO L429 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]=== [2020-11-11 18:34:47,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:34:47,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1699594421, now seen corresponding path program 12 times [2020-11-11 18:34:47,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:34:47,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596133688] [2020-11-11 18:34:47,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:34:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:34:47,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:34:47,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596133688] [2020-11-11 18:34:47,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:34:47,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-11-11 18:34:47,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127198605] [2020-11-11 18:34:47,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-11 18:34:48,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:34:48,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-11 18:34:48,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2020-11-11 18:34:48,002 INFO L87 Difference]: Start difference. First operand 8905 states and 23920 transitions. Second operand has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:48,910 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-11-11 18:34:49,109 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-11-11 18:34:49,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:34:49,890 INFO L93 Difference]: Finished difference Result 11528 states and 29700 transitions. [2020-11-11 18:34:49,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-11 18:34:49,891 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:34:49,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:34:49,904 INFO L225 Difference]: With dead ends: 11528 [2020-11-11 18:34:49,904 INFO L226 Difference]: Without dead ends: 11528 [2020-11-11 18:34:49,905 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=307, Invalid=883, Unknown=0, NotChecked=0, Total=1190 [2020-11-11 18:34:49,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11528 states. [2020-11-11 18:34:50,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11528 to 8994. [2020-11-11 18:34:50,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8992 states have (on average 2.6842749110320283) internal successors, (24137), 8993 states have internal predecessors, (24137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:50,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24137 transitions. [2020-11-11 18:34:50,090 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24137 transitions. Word has length 110 [2020-11-11 18:34:50,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:34:50,090 INFO L481 AbstractCegarLoop]: Abstraction has 8994 states and 24137 transitions. [2020-11-11 18:34:50,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:50,091 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24137 transitions. [2020-11-11 18:34:50,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:34:50,104 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:34:50,104 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:34:50,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-11 18:34:50,105 INFO L429 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]=== [2020-11-11 18:34:50,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:34:50,105 INFO L82 PathProgramCache]: Analyzing trace with hash -364039085, now seen corresponding path program 13 times [2020-11-11 18:34:50,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:34:50,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809048353] [2020-11-11 18:34:50,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:34:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:34:50,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:34:50,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809048353] [2020-11-11 18:34:50,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:34:50,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:34:50,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851688793] [2020-11-11 18:34:50,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:34:50,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:34:50,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:34:50,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:34:50,884 INFO L87 Difference]: Start difference. First operand 8994 states and 24137 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:52,118 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-11-11 18:34:52,574 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-11 18:34:52,819 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-11-11 18:34:53,052 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2020-11-11 18:34:53,239 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-11-11 18:34:53,507 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2020-11-11 18:34:53,729 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-11-11 18:34:53,998 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-11-11 18:34:54,328 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:34:54,718 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:34:55,018 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2020-11-11 18:34:55,425 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2020-11-11 18:34:55,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:34:55,997 INFO L93 Difference]: Finished difference Result 13619 states and 35543 transitions. [2020-11-11 18:34:55,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-11-11 18:34:55,998 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:34:55,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:34:56,014 INFO L225 Difference]: With dead ends: 13619 [2020-11-11 18:34:56,014 INFO L226 Difference]: Without dead ends: 13619 [2020-11-11 18:34:56,015 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=577, Invalid=1873, Unknown=0, NotChecked=0, Total=2450 [2020-11-11 18:34:56,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13619 states. [2020-11-11 18:34:56,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13619 to 9085. [2020-11-11 18:34:56,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9085 states, 9083 states have (on average 2.6866674006385556) internal successors, (24403), 9084 states have internal predecessors, (24403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:56,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9085 states to 9085 states and 24403 transitions. [2020-11-11 18:34:56,206 INFO L78 Accepts]: Start accepts. Automaton has 9085 states and 24403 transitions. Word has length 110 [2020-11-11 18:34:56,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:34:56,207 INFO L481 AbstractCegarLoop]: Abstraction has 9085 states and 24403 transitions. [2020-11-11 18:34:56,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:56,207 INFO L276 IsEmpty]: Start isEmpty. Operand 9085 states and 24403 transitions. [2020-11-11 18:34:56,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:34:56,219 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:34:56,219 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:34:56,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-11 18:34:56,220 INFO L429 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]=== [2020-11-11 18:34:56,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:34:56,220 INFO L82 PathProgramCache]: Analyzing trace with hash -363144553, now seen corresponding path program 14 times [2020-11-11 18:34:56,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:34:56,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833314093] [2020-11-11 18:34:56,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:34:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:34:56,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:34:56,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833314093] [2020-11-11 18:34:56,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:34:56,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-11-11 18:34:56,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872586111] [2020-11-11 18:34:56,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-11 18:34:56,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:34:56,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-11 18:34:56,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2020-11-11 18:34:56,791 INFO L87 Difference]: Start difference. First operand 9085 states and 24403 transitions. Second operand has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:57,637 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-11-11 18:34:57,849 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-11-11 18:34:58,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:34:58,530 INFO L93 Difference]: Finished difference Result 10199 states and 26788 transitions. [2020-11-11 18:34:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-11 18:34:58,531 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:34:58,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:34:58,543 INFO L225 Difference]: With dead ends: 10199 [2020-11-11 18:34:58,543 INFO L226 Difference]: Without dead ends: 10199 [2020-11-11 18:34:58,544 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=296, Invalid=894, Unknown=0, NotChecked=0, Total=1190 [2020-11-11 18:34:58,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10199 states. [2020-11-11 18:34:58,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10199 to 8494. [2020-11-11 18:34:58,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8494 states, 8492 states have (on average 2.705605275553462) internal successors, (22976), 8493 states have internal predecessors, (22976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:58,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8494 states to 8494 states and 22976 transitions. [2020-11-11 18:34:58,738 INFO L78 Accepts]: Start accepts. Automaton has 8494 states and 22976 transitions. Word has length 110 [2020-11-11 18:34:58,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:34:58,738 INFO L481 AbstractCegarLoop]: Abstraction has 8494 states and 22976 transitions. [2020-11-11 18:34:58,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:34:58,739 INFO L276 IsEmpty]: Start isEmpty. Operand 8494 states and 22976 transitions. [2020-11-11 18:34:58,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:34:58,753 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:34:58,753 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:34:58,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-11 18:34:58,754 INFO L429 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]=== [2020-11-11 18:34:58,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:34:58,754 INFO L82 PathProgramCache]: Analyzing trace with hash 2054493073, now seen corresponding path program 15 times [2020-11-11 18:34:58,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:34:58,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205326724] [2020-11-11 18:34:58,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:34:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:34:59,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:34:59,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205326724] [2020-11-11 18:34:59,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:34:59,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:34:59,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750143985] [2020-11-11 18:34:59,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:34:59,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:34:59,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:34:59,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:34:59,586 INFO L87 Difference]: Start difference. First operand 8494 states and 22976 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:00,794 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-11-11 18:35:01,091 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-11 18:35:01,433 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2020-11-11 18:35:01,602 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-11-11 18:35:01,811 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-11-11 18:35:01,968 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-11-11 18:35:02,223 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-11-11 18:35:02,419 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-11-11 18:35:02,705 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-11-11 18:35:02,938 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2020-11-11 18:35:03,247 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2020-11-11 18:35:03,586 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-11-11 18:35:04,028 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2020-11-11 18:35:04,343 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-11-11 18:35:04,762 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2020-11-11 18:35:05,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:35:05,358 INFO L93 Difference]: Finished difference Result 9118 states and 23826 transitions. [2020-11-11 18:35:05,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-11-11 18:35:05,359 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:35:05,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:35:05,369 INFO L225 Difference]: With dead ends: 9118 [2020-11-11 18:35:05,369 INFO L226 Difference]: Without dead ends: 9118 [2020-11-11 18:35:05,370 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=659, Invalid=2097, Unknown=0, NotChecked=0, Total=2756 [2020-11-11 18:35:05,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9118 states. [2020-11-11 18:35:05,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9118 to 6523. [2020-11-11 18:35:05,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6523 states, 6521 states have (on average 2.6479067627664468) internal successors, (17267), 6522 states have internal predecessors, (17267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:05,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6523 states to 6523 states and 17267 transitions. [2020-11-11 18:35:05,483 INFO L78 Accepts]: Start accepts. Automaton has 6523 states and 17267 transitions. Word has length 110 [2020-11-11 18:35:05,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:35:05,483 INFO L481 AbstractCegarLoop]: Abstraction has 6523 states and 17267 transitions. [2020-11-11 18:35:05,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:05,483 INFO L276 IsEmpty]: Start isEmpty. Operand 6523 states and 17267 transitions. [2020-11-11 18:35:05,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:35:05,490 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:35:05,490 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:35:05,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-11 18:35:05,490 INFO L429 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]=== [2020-11-11 18:35:05,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:35:05,491 INFO L82 PathProgramCache]: Analyzing trace with hash 104744667, now seen corresponding path program 2 times [2020-11-11 18:35:05,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:35:05,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915084315] [2020-11-11 18:35:05,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:35:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:35:06,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:35:06,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915084315] [2020-11-11 18:35:06,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:35:06,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:35:06,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008827259] [2020-11-11 18:35:06,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:35:06,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:35:06,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:35:06,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:35:06,097 INFO L87 Difference]: Start difference. First operand 6523 states and 17267 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:09,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:35:09,915 INFO L93 Difference]: Finished difference Result 11578 states and 30629 transitions. [2020-11-11 18:35:09,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-11-11 18:35:09,917 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:35:09,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:35:09,930 INFO L225 Difference]: With dead ends: 11578 [2020-11-11 18:35:09,930 INFO L226 Difference]: Without dead ends: 11436 [2020-11-11 18:35:09,931 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1041, Invalid=2151, Unknown=0, NotChecked=0, Total=3192 [2020-11-11 18:35:09,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11436 states. [2020-11-11 18:35:10,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11436 to 9559. [2020-11-11 18:35:10,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9559 states, 9557 states have (on average 2.6969760385058072) internal successors, (25775), 9558 states have internal predecessors, (25775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:10,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9559 states to 9559 states and 25775 transitions. [2020-11-11 18:35:10,094 INFO L78 Accepts]: Start accepts. Automaton has 9559 states and 25775 transitions. Word has length 110 [2020-11-11 18:35:10,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:35:10,094 INFO L481 AbstractCegarLoop]: Abstraction has 9559 states and 25775 transitions. [2020-11-11 18:35:10,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:10,095 INFO L276 IsEmpty]: Start isEmpty. Operand 9559 states and 25775 transitions. [2020-11-11 18:35:10,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:35:10,103 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:35:10,104 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:35:10,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-11 18:35:10,104 INFO L429 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]=== [2020-11-11 18:35:10,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:35:10,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1545465007, now seen corresponding path program 16 times [2020-11-11 18:35:10,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:35:10,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181131958] [2020-11-11 18:35:10,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:35:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:35:10,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:35:10,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181131958] [2020-11-11 18:35:10,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:35:10,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:35:10,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029584729] [2020-11-11 18:35:10,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:35:10,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:35:10,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:35:10,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:35:10,805 INFO L87 Difference]: Start difference. First operand 9559 states and 25775 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:12,359 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:35:12,578 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:35:12,882 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:35:13,177 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2020-11-11 18:35:13,562 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-11-11 18:35:13,914 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:35:14,306 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2020-11-11 18:35:14,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:35:14,833 INFO L93 Difference]: Finished difference Result 13186 states and 35077 transitions. [2020-11-11 18:35:14,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:35:14,834 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:35:14,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:35:14,850 INFO L225 Difference]: With dead ends: 13186 [2020-11-11 18:35:14,850 INFO L226 Difference]: Without dead ends: 13186 [2020-11-11 18:35:14,851 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=439, Invalid=1541, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:35:14,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13186 states. [2020-11-11 18:35:15,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13186 to 9583. [2020-11-11 18:35:15,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9583 states, 9581 states have (on average 2.695230142991337) internal successors, (25823), 9582 states have internal predecessors, (25823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:15,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9583 states to 9583 states and 25823 transitions. [2020-11-11 18:35:15,030 INFO L78 Accepts]: Start accepts. Automaton has 9583 states and 25823 transitions. Word has length 110 [2020-11-11 18:35:15,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:35:15,030 INFO L481 AbstractCegarLoop]: Abstraction has 9583 states and 25823 transitions. [2020-11-11 18:35:15,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:15,031 INFO L276 IsEmpty]: Start isEmpty. Operand 9583 states and 25823 transitions. [2020-11-11 18:35:15,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:35:15,045 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:35:15,045 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:35:15,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-11 18:35:15,045 INFO L429 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]=== [2020-11-11 18:35:15,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:35:15,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1615126061, now seen corresponding path program 17 times [2020-11-11 18:35:15,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:35:15,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360785960] [2020-11-11 18:35:15,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:35:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:35:15,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:35:15,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360785960] [2020-11-11 18:35:15,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:35:15,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:35:15,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628824943] [2020-11-11 18:35:15,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:35:15,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:35:15,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:35:15,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:35:15,940 INFO L87 Difference]: Start difference. First operand 9583 states and 25823 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:17,469 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:35:17,691 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:35:18,014 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:35:18,313 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2020-11-11 18:35:18,697 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-11-11 18:35:19,095 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2020-11-11 18:35:19,498 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2020-11-11 18:35:20,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:35:20,050 INFO L93 Difference]: Finished difference Result 12808 states and 33705 transitions. [2020-11-11 18:35:20,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:35:20,056 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:35:20,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:35:20,071 INFO L225 Difference]: With dead ends: 12808 [2020-11-11 18:35:20,071 INFO L226 Difference]: Without dead ends: 12808 [2020-11-11 18:35:20,072 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=439, Invalid=1541, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:35:20,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12808 states. [2020-11-11 18:35:20,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12808 to 9475. [2020-11-11 18:35:20,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9475 states, 9473 states have (on average 2.6928111474717618) internal successors, (25509), 9474 states have internal predecessors, (25509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:20,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9475 states to 9475 states and 25509 transitions. [2020-11-11 18:35:20,249 INFO L78 Accepts]: Start accepts. Automaton has 9475 states and 25509 transitions. Word has length 110 [2020-11-11 18:35:20,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:35:20,249 INFO L481 AbstractCegarLoop]: Abstraction has 9475 states and 25509 transitions. [2020-11-11 18:35:20,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:20,249 INFO L276 IsEmpty]: Start isEmpty. Operand 9475 states and 25509 transitions. [2020-11-11 18:35:20,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:35:20,258 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:35:20,258 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:35:20,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-11 18:35:20,258 INFO L429 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]=== [2020-11-11 18:35:20,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:35:20,259 INFO L82 PathProgramCache]: Analyzing trace with hash -387330767, now seen corresponding path program 18 times [2020-11-11 18:35:20,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:35:20,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603015920] [2020-11-11 18:35:20,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:35:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:35:20,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:35:20,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603015920] [2020-11-11 18:35:20,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:35:20,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:35:20,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724135253] [2020-11-11 18:35:20,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:35:20,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:35:20,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:35:20,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:35:20,909 INFO L87 Difference]: Start difference. First operand 9475 states and 25509 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:22,460 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:35:22,682 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:35:22,991 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:35:23,285 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2020-11-11 18:35:23,606 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2020-11-11 18:35:24,012 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2020-11-11 18:35:24,398 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2020-11-11 18:35:24,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:35:24,860 INFO L93 Difference]: Finished difference Result 10328 states and 27311 transitions. [2020-11-11 18:35:24,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:35:24,861 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:35:24,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:35:24,875 INFO L225 Difference]: With dead ends: 10328 [2020-11-11 18:35:24,875 INFO L226 Difference]: Without dead ends: 10328 [2020-11-11 18:35:24,876 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=439, Invalid=1541, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:35:24,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10328 states. [2020-11-11 18:35:25,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10328 to 8260. [2020-11-11 18:35:25,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8260 states, 8258 states have (on average 2.6783724872850567) internal successors, (22118), 8259 states have internal predecessors, (22118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:25,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8260 states to 8260 states and 22118 transitions. [2020-11-11 18:35:25,024 INFO L78 Accepts]: Start accepts. Automaton has 8260 states and 22118 transitions. Word has length 110 [2020-11-11 18:35:25,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:35:25,024 INFO L481 AbstractCegarLoop]: Abstraction has 8260 states and 22118 transitions. [2020-11-11 18:35:25,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:25,024 INFO L276 IsEmpty]: Start isEmpty. Operand 8260 states and 22118 transitions. [2020-11-11 18:35:25,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:35:25,035 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:35:25,036 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:35:25,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-11-11 18:35:25,036 INFO L429 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]=== [2020-11-11 18:35:25,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:35:25,037 INFO L82 PathProgramCache]: Analyzing trace with hash 633172223, now seen corresponding path program 19 times [2020-11-11 18:35:25,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:35:25,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77110500] [2020-11-11 18:35:25,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:35:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:35:25,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:35:25,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77110500] [2020-11-11 18:35:25,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:35:25,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-11-11 18:35:25,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623525960] [2020-11-11 18:35:25,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-11 18:35:25,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:35:25,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-11 18:35:25,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-11-11 18:35:25,591 INFO L87 Difference]: Start difference. First operand 8260 states and 22118 transitions. Second operand has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:26,604 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-11-11 18:35:26,803 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-11-11 18:35:27,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:35:27,608 INFO L93 Difference]: Finished difference Result 9732 states and 25229 transitions. [2020-11-11 18:35:27,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-11 18:35:27,609 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:35:27,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:35:27,620 INFO L225 Difference]: With dead ends: 9732 [2020-11-11 18:35:27,620 INFO L226 Difference]: Without dead ends: 9732 [2020-11-11 18:35:27,621 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=318, Invalid=872, Unknown=0, NotChecked=0, Total=1190 [2020-11-11 18:35:27,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9732 states. [2020-11-11 18:35:27,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9732 to 8100. [2020-11-11 18:35:27,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8100 states, 8098 states have (on average 2.687330204988886) internal successors, (21762), 8099 states have internal predecessors, (21762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:27,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8100 states to 8100 states and 21762 transitions. [2020-11-11 18:35:27,770 INFO L78 Accepts]: Start accepts. Automaton has 8100 states and 21762 transitions. Word has length 110 [2020-11-11 18:35:27,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:35:27,770 INFO L481 AbstractCegarLoop]: Abstraction has 8100 states and 21762 transitions. [2020-11-11 18:35:27,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:27,770 INFO L276 IsEmpty]: Start isEmpty. Operand 8100 states and 21762 transitions. [2020-11-11 18:35:27,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:35:27,779 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:35:27,780 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:35:27,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-11-11 18:35:27,780 INFO L429 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]=== [2020-11-11 18:35:27,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:35:27,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1837174887, now seen corresponding path program 3 times [2020-11-11 18:35:27,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:35:27,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569830119] [2020-11-11 18:35:27,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:35:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:35:28,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:35:28,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569830119] [2020-11-11 18:35:28,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:35:28,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:35:28,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271508389] [2020-11-11 18:35:28,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:35:28,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:35:28,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:35:28,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:35:28,413 INFO L87 Difference]: Start difference. First operand 8100 states and 21762 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:32,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:35:32,236 INFO L93 Difference]: Finished difference Result 11501 states and 30551 transitions. [2020-11-11 18:35:32,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-11-11 18:35:32,237 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:35:32,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:35:32,249 INFO L225 Difference]: With dead ends: 11501 [2020-11-11 18:35:32,250 INFO L226 Difference]: Without dead ends: 11419 [2020-11-11 18:35:32,251 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1073, Invalid=2233, Unknown=0, NotChecked=0, Total=3306 [2020-11-11 18:35:32,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11419 states. [2020-11-11 18:35:32,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11419 to 9517. [2020-11-11 18:35:32,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9517 states, 9515 states have (on average 2.7040462427745666) internal successors, (25729), 9516 states have internal predecessors, (25729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:32,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9517 states to 9517 states and 25729 transitions. [2020-11-11 18:35:32,445 INFO L78 Accepts]: Start accepts. Automaton has 9517 states and 25729 transitions. Word has length 110 [2020-11-11 18:35:32,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:35:32,445 INFO L481 AbstractCegarLoop]: Abstraction has 9517 states and 25729 transitions. [2020-11-11 18:35:32,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:32,445 INFO L276 IsEmpty]: Start isEmpty. Operand 9517 states and 25729 transitions. [2020-11-11 18:35:32,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:35:32,455 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:35:32,455 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:35:32,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-11-11 18:35:32,455 INFO L429 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]=== [2020-11-11 18:35:32,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:35:32,455 INFO L82 PathProgramCache]: Analyzing trace with hash 807582735, now seen corresponding path program 20 times [2020-11-11 18:35:32,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:35:32,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398033057] [2020-11-11 18:35:32,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:35:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:35:33,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:35:33,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398033057] [2020-11-11 18:35:33,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:35:33,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:35:33,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475028911] [2020-11-11 18:35:33,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:35:33,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:35:33,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:35:33,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:35:33,130 INFO L87 Difference]: Start difference. First operand 9517 states and 25729 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:34,709 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:35:34,930 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:35:35,245 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:35:35,549 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-11-11 18:35:35,892 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-11-11 18:35:36,264 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:35:36,651 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2020-11-11 18:35:37,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:35:37,230 INFO L93 Difference]: Finished difference Result 13380 states and 35222 transitions. [2020-11-11 18:35:37,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:35:37,231 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:35:37,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:35:37,246 INFO L225 Difference]: With dead ends: 13380 [2020-11-11 18:35:37,247 INFO L226 Difference]: Without dead ends: 13380 [2020-11-11 18:35:37,247 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=439, Invalid=1541, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:35:37,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13380 states. [2020-11-11 18:35:37,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13380 to 9439. [2020-11-11 18:35:37,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9439 states, 9437 states have (on average 2.702235880046625) internal successors, (25501), 9438 states have internal predecessors, (25501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:37,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9439 states to 9439 states and 25501 transitions. [2020-11-11 18:35:37,424 INFO L78 Accepts]: Start accepts. Automaton has 9439 states and 25501 transitions. Word has length 110 [2020-11-11 18:35:37,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:35:37,424 INFO L481 AbstractCegarLoop]: Abstraction has 9439 states and 25501 transitions. [2020-11-11 18:35:37,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:37,424 INFO L276 IsEmpty]: Start isEmpty. Operand 9439 states and 25501 transitions. [2020-11-11 18:35:37,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:35:37,434 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:35:37,434 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:35:37,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-11-11 18:35:37,434 INFO L429 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]=== [2020-11-11 18:35:37,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:35:37,434 INFO L82 PathProgramCache]: Analyzing trace with hash 737921681, now seen corresponding path program 21 times [2020-11-11 18:35:37,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:35:37,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579255697] [2020-11-11 18:35:37,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:35:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:35:38,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:35:38,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579255697] [2020-11-11 18:35:38,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:35:38,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:35:38,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152614339] [2020-11-11 18:35:38,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:35:38,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:35:38,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:35:38,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:35:38,310 INFO L87 Difference]: Start difference. First operand 9439 states and 25501 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:39,891 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:35:40,113 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:35:40,443 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:35:40,770 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-11-11 18:35:41,121 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-11-11 18:35:41,526 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2020-11-11 18:35:41,897 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2020-11-11 18:35:42,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:35:42,536 INFO L93 Difference]: Finished difference Result 14018 states and 36687 transitions. [2020-11-11 18:35:42,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:35:42,537 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:35:42,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:35:42,553 INFO L225 Difference]: With dead ends: 14018 [2020-11-11 18:35:42,553 INFO L226 Difference]: Without dead ends: 14018 [2020-11-11 18:35:42,554 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=439, Invalid=1541, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:35:42,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14018 states. [2020-11-11 18:35:42,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14018 to 9426. [2020-11-11 18:35:42,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9426 states, 9424 states have (on average 2.7019312393887946) internal successors, (25463), 9425 states have internal predecessors, (25463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:42,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9426 states to 9426 states and 25463 transitions. [2020-11-11 18:35:42,786 INFO L78 Accepts]: Start accepts. Automaton has 9426 states and 25463 transitions. Word has length 110 [2020-11-11 18:35:42,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:35:42,786 INFO L481 AbstractCegarLoop]: Abstraction has 9426 states and 25463 transitions. [2020-11-11 18:35:42,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:42,787 INFO L276 IsEmpty]: Start isEmpty. Operand 9426 states and 25463 transitions. [2020-11-11 18:35:42,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:35:42,799 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:35:42,800 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:35:42,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-11-11 18:35:42,800 INFO L429 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]=== [2020-11-11 18:35:42,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:35:42,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1872037869, now seen corresponding path program 22 times [2020-11-11 18:35:42,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:35:42,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998111714] [2020-11-11 18:35:42,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:35:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:35:43,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:35:43,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998111714] [2020-11-11 18:35:43,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:35:43,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:35:43,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012032877] [2020-11-11 18:35:43,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:35:43,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:35:43,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:35:43,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:35:43,563 INFO L87 Difference]: Start difference. First operand 9426 states and 25463 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:45,171 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:35:45,398 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:35:45,741 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:35:46,073 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-11-11 18:35:46,422 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-11-11 18:35:46,819 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2020-11-11 18:35:47,135 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-11-11 18:35:47,537 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2020-11-11 18:35:48,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:35:48,118 INFO L93 Difference]: Finished difference Result 11806 states and 30907 transitions. [2020-11-11 18:35:48,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-11 18:35:48,120 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:35:48,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:35:48,132 INFO L225 Difference]: With dead ends: 11806 [2020-11-11 18:35:48,132 INFO L226 Difference]: Without dead ends: 11806 [2020-11-11 18:35:48,133 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=469, Invalid=1601, Unknown=0, NotChecked=0, Total=2070 [2020-11-11 18:35:48,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11806 states. [2020-11-11 18:35:48,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11806 to 8100. [2020-11-11 18:35:48,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8100 states, 8098 states have (on average 2.687330204988886) internal successors, (21762), 8099 states have internal predecessors, (21762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:48,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8100 states to 8100 states and 21762 transitions. [2020-11-11 18:35:48,284 INFO L78 Accepts]: Start accepts. Automaton has 8100 states and 21762 transitions. Word has length 110 [2020-11-11 18:35:48,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:35:48,285 INFO L481 AbstractCegarLoop]: Abstraction has 8100 states and 21762 transitions. [2020-11-11 18:35:48,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:48,285 INFO L276 IsEmpty]: Start isEmpty. Operand 8100 states and 21762 transitions. [2020-11-11 18:35:48,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:35:48,293 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:35:48,293 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:35:48,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-11-11 18:35:48,294 INFO L429 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]=== [2020-11-11 18:35:48,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:35:48,294 INFO L82 PathProgramCache]: Analyzing trace with hash 470054427, now seen corresponding path program 4 times [2020-11-11 18:35:48,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:35:48,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408191547] [2020-11-11 18:35:48,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:35:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:35:48,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:35:48,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408191547] [2020-11-11 18:35:48,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:35:48,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:35:48,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200024811] [2020-11-11 18:35:48,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:35:48,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:35:48,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:35:48,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:35:48,944 INFO L87 Difference]: Start difference. First operand 8100 states and 21762 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:53,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:35:53,318 INFO L93 Difference]: Finished difference Result 11945 states and 31796 transitions. [2020-11-11 18:35:53,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-11-11 18:35:53,319 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:35:53,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:35:53,333 INFO L225 Difference]: With dead ends: 11945 [2020-11-11 18:35:53,333 INFO L226 Difference]: Without dead ends: 11863 [2020-11-11 18:35:53,334 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1157, Invalid=2383, Unknown=0, NotChecked=0, Total=3540 [2020-11-11 18:35:53,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11863 states. [2020-11-11 18:35:53,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11863 to 9725. [2020-11-11 18:35:53,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9725 states, 9723 states have (on average 2.708731872878741) internal successors, (26337), 9724 states have internal predecessors, (26337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:53,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9725 states to 9725 states and 26337 transitions. [2020-11-11 18:35:53,501 INFO L78 Accepts]: Start accepts. Automaton has 9725 states and 26337 transitions. Word has length 110 [2020-11-11 18:35:53,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:35:53,501 INFO L481 AbstractCegarLoop]: Abstraction has 9725 states and 26337 transitions. [2020-11-11 18:35:53,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:53,502 INFO L276 IsEmpty]: Start isEmpty. Operand 9725 states and 26337 transitions. [2020-11-11 18:35:53,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:35:53,511 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:35:53,511 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:35:53,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-11-11 18:35:53,511 INFO L429 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]=== [2020-11-11 18:35:53,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:35:53,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1180155247, now seen corresponding path program 23 times [2020-11-11 18:35:53,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:35:53,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007612630] [2020-11-11 18:35:53,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:35:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:35:54,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:35:54,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007612630] [2020-11-11 18:35:54,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:35:54,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:35:54,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768999759] [2020-11-11 18:35:54,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:35:54,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:35:54,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:35:54,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:35:54,208 INFO L87 Difference]: Start difference. First operand 9725 states and 26337 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:55,822 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:35:56,049 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:35:56,350 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:35:56,679 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:35:57,021 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-11 18:35:57,387 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:35:57,791 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2020-11-11 18:35:58,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:35:58,370 INFO L93 Difference]: Finished difference Result 13824 states and 36467 transitions. [2020-11-11 18:35:58,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:35:58,371 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:35:58,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:35:58,386 INFO L225 Difference]: With dead ends: 13824 [2020-11-11 18:35:58,386 INFO L226 Difference]: Without dead ends: 13824 [2020-11-11 18:35:58,387 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=439, Invalid=1541, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:35:58,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13824 states. [2020-11-11 18:35:58,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13824 to 9647. [2020-11-11 18:35:58,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9647 states, 9645 states have (on average 2.7069984447900466) internal successors, (26109), 9646 states have internal predecessors, (26109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:58,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9647 states to 9647 states and 26109 transitions. [2020-11-11 18:35:58,575 INFO L78 Accepts]: Start accepts. Automaton has 9647 states and 26109 transitions. Word has length 110 [2020-11-11 18:35:58,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:35:58,575 INFO L481 AbstractCegarLoop]: Abstraction has 9647 states and 26109 transitions. [2020-11-11 18:35:58,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:35:58,576 INFO L276 IsEmpty]: Start isEmpty. Operand 9647 states and 26109 transitions. [2020-11-11 18:35:58,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:35:58,586 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:35:58,586 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:35:58,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-11-11 18:35:58,587 INFO L429 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]=== [2020-11-11 18:35:58,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:35:58,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1249816301, now seen corresponding path program 24 times [2020-11-11 18:35:58,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:35:58,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796219535] [2020-11-11 18:35:58,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:35:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:35:59,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:35:59,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796219535] [2020-11-11 18:35:59,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:35:59,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:35:59,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201284602] [2020-11-11 18:35:59,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:35:59,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:35:59,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:35:59,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:35:59,346 INFO L87 Difference]: Start difference. First operand 9647 states and 26109 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:00,983 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:36:01,216 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:36:01,536 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:36:01,868 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:36:02,254 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-11 18:36:02,648 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2020-11-11 18:36:03,038 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2020-11-11 18:36:03,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:36:03,643 INFO L93 Difference]: Finished difference Result 14462 states and 37932 transitions. [2020-11-11 18:36:03,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:36:03,644 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:36:03,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:36:03,660 INFO L225 Difference]: With dead ends: 14462 [2020-11-11 18:36:03,660 INFO L226 Difference]: Without dead ends: 14462 [2020-11-11 18:36:03,661 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=439, Invalid=1541, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:36:03,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14462 states. [2020-11-11 18:36:03,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14462 to 9634. [2020-11-11 18:36:03,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9634 states, 9632 states have (on average 2.7067068106312293) internal successors, (26071), 9633 states have internal predecessors, (26071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:03,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9634 states to 9634 states and 26071 transitions. [2020-11-11 18:36:03,853 INFO L78 Accepts]: Start accepts. Automaton has 9634 states and 26071 transitions. Word has length 110 [2020-11-11 18:36:03,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:36:03,854 INFO L481 AbstractCegarLoop]: Abstraction has 9634 states and 26071 transitions. [2020-11-11 18:36:03,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:03,854 INFO L276 IsEmpty]: Start isEmpty. Operand 9634 states and 26071 transitions. [2020-11-11 18:36:03,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:36:03,864 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:36:03,864 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:36:03,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-11-11 18:36:03,864 INFO L429 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]=== [2020-11-11 18:36:03,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:36:03,865 INFO L82 PathProgramCache]: Analyzing trace with hash -115700113, now seen corresponding path program 25 times [2020-11-11 18:36:03,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:36:03,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700400030] [2020-11-11 18:36:03,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:36:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:36:04,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:36:04,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700400030] [2020-11-11 18:36:04,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:36:04,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:36:04,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984351619] [2020-11-11 18:36:04,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:36:04,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:36:04,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:36:04,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:36:04,629 INFO L87 Difference]: Start difference. First operand 9634 states and 26071 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:06,255 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:36:06,488 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:36:06,801 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:36:07,143 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:36:07,488 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:36:07,866 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2020-11-11 18:36:08,178 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-11-11 18:36:08,575 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2020-11-11 18:36:09,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:36:09,246 INFO L93 Difference]: Finished difference Result 15421 states and 40290 transitions. [2020-11-11 18:36:09,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-11 18:36:09,247 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:36:09,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:36:09,263 INFO L225 Difference]: With dead ends: 15421 [2020-11-11 18:36:09,264 INFO L226 Difference]: Without dead ends: 15421 [2020-11-11 18:36:09,264 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=469, Invalid=1601, Unknown=0, NotChecked=0, Total=2070 [2020-11-11 18:36:09,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15421 states. [2020-11-11 18:36:09,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15421 to 9621. [2020-11-11 18:36:09,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9621 states, 9619 states have (on average 2.7064143881900407) internal successors, (26033), 9620 states have internal predecessors, (26033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:09,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9621 states to 9621 states and 26033 transitions. [2020-11-11 18:36:09,451 INFO L78 Accepts]: Start accepts. Automaton has 9621 states and 26033 transitions. Word has length 110 [2020-11-11 18:36:09,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:36:09,451 INFO L481 AbstractCegarLoop]: Abstraction has 9621 states and 26033 transitions. [2020-11-11 18:36:09,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:09,451 INFO L276 IsEmpty]: Start isEmpty. Operand 9621 states and 26033 transitions. [2020-11-11 18:36:09,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:36:09,461 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:36:09,461 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:36:09,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-11-11 18:36:09,461 INFO L429 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]=== [2020-11-11 18:36:09,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:36:09,462 INFO L82 PathProgramCache]: Analyzing trace with hash -295177035, now seen corresponding path program 26 times [2020-11-11 18:36:09,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:36:09,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395945131] [2020-11-11 18:36:09,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:36:09,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:36:10,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:36:10,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395945131] [2020-11-11 18:36:10,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:36:10,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:36:10,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533006488] [2020-11-11 18:36:10,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:36:10,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:36:10,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:36:10,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:36:10,255 INFO L87 Difference]: Start difference. First operand 9621 states and 26033 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:11,922 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:36:12,162 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:36:12,483 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:36:12,796 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-11-11 18:36:13,124 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-11-11 18:36:13,472 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-11-11 18:36:13,881 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2020-11-11 18:36:14,207 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-11-11 18:36:14,687 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2020-11-11 18:36:15,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:36:15,296 INFO L93 Difference]: Finished difference Result 12237 states and 32114 transitions. [2020-11-11 18:36:15,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-11-11 18:36:15,297 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:36:15,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:36:15,311 INFO L225 Difference]: With dead ends: 12237 [2020-11-11 18:36:15,311 INFO L226 Difference]: Without dead ends: 12237 [2020-11-11 18:36:15,311 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=498, Invalid=1664, Unknown=0, NotChecked=0, Total=2162 [2020-11-11 18:36:15,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12237 states. [2020-11-11 18:36:15,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12237 to 8100. [2020-11-11 18:36:15,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8100 states, 8098 states have (on average 2.687330204988886) internal successors, (21762), 8099 states have internal predecessors, (21762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:15,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8100 states to 8100 states and 21762 transitions. [2020-11-11 18:36:15,464 INFO L78 Accepts]: Start accepts. Automaton has 8100 states and 21762 transitions. Word has length 110 [2020-11-11 18:36:15,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:36:15,464 INFO L481 AbstractCegarLoop]: Abstraction has 8100 states and 21762 transitions. [2020-11-11 18:36:15,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:15,464 INFO L276 IsEmpty]: Start isEmpty. Operand 8100 states and 21762 transitions. [2020-11-11 18:36:15,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:36:15,472 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:36:15,472 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:36:15,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-11-11 18:36:15,472 INFO L429 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]=== [2020-11-11 18:36:15,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:36:15,473 INFO L82 PathProgramCache]: Analyzing trace with hash -177080997, now seen corresponding path program 5 times [2020-11-11 18:36:15,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:36:15,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667308013] [2020-11-11 18:36:15,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:36:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:36:16,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:36:16,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667308013] [2020-11-11 18:36:16,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:36:16,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:36:16,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758287287] [2020-11-11 18:36:16,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:36:16,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:36:16,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:36:16,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:36:16,123 INFO L87 Difference]: Start difference. First operand 8100 states and 21762 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:20,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:36:20,619 INFO L93 Difference]: Finished difference Result 12389 states and 33041 transitions. [2020-11-11 18:36:20,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-11-11 18:36:20,620 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:36:20,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:36:20,635 INFO L225 Difference]: With dead ends: 12389 [2020-11-11 18:36:20,636 INFO L226 Difference]: Without dead ends: 12307 [2020-11-11 18:36:20,636 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1241, Invalid=2541, Unknown=0, NotChecked=0, Total=3782 [2020-11-11 18:36:20,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12307 states. [2020-11-11 18:36:20,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12307 to 9829. [2020-11-11 18:36:20,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9829 states, 9827 states have (on average 2.7110003052813676) internal successors, (26641), 9828 states have internal predecessors, (26641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:20,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9829 states to 9829 states and 26641 transitions. [2020-11-11 18:36:20,814 INFO L78 Accepts]: Start accepts. Automaton has 9829 states and 26641 transitions. Word has length 110 [2020-11-11 18:36:20,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:36:20,814 INFO L481 AbstractCegarLoop]: Abstraction has 9829 states and 26641 transitions. [2020-11-11 18:36:20,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:20,815 INFO L276 IsEmpty]: Start isEmpty. Operand 9829 states and 26641 transitions. [2020-11-11 18:36:20,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:36:20,824 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:36:20,825 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:36:20,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-11-11 18:36:20,825 INFO L429 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]=== [2020-11-11 18:36:20,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:36:20,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1827290671, now seen corresponding path program 27 times [2020-11-11 18:36:20,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:36:20,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748884296] [2020-11-11 18:36:20,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:36:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:36:21,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:36:21,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748884296] [2020-11-11 18:36:21,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:36:21,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:36:21,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38242277] [2020-11-11 18:36:21,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:36:21,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:36:21,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:36:21,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:36:21,531 INFO L87 Difference]: Start difference. First operand 9829 states and 26641 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:23,184 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:36:23,438 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-11-11 18:36:23,715 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:36:24,056 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:36:24,400 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-11 18:36:24,781 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:36:25,188 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2020-11-11 18:36:25,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:36:25,783 INFO L93 Difference]: Finished difference Result 14268 states and 37712 transitions. [2020-11-11 18:36:25,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:36:25,784 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:36:25,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:36:25,800 INFO L225 Difference]: With dead ends: 14268 [2020-11-11 18:36:25,800 INFO L226 Difference]: Without dead ends: 14268 [2020-11-11 18:36:25,801 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=439, Invalid=1541, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:36:25,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14268 states. [2020-11-11 18:36:25,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14268 to 9751. [2020-11-11 18:36:25,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9751 states, 9749 states have (on average 2.70930351830957) internal successors, (26413), 9750 states have internal predecessors, (26413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:25,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9751 states to 9751 states and 26413 transitions. [2020-11-11 18:36:25,981 INFO L78 Accepts]: Start accepts. Automaton has 9751 states and 26413 transitions. Word has length 110 [2020-11-11 18:36:25,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:36:25,981 INFO L481 AbstractCegarLoop]: Abstraction has 9751 states and 26413 transitions. [2020-11-11 18:36:25,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:25,981 INFO L276 IsEmpty]: Start isEmpty. Operand 9751 states and 26413 transitions. [2020-11-11 18:36:25,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:36:25,992 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:36:25,992 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:36:25,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-11-11 18:36:25,992 INFO L429 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]=== [2020-11-11 18:36:25,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:36:25,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1896951725, now seen corresponding path program 28 times [2020-11-11 18:36:25,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:36:25,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220478652] [2020-11-11 18:36:25,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:36:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:36:26,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:36:26,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220478652] [2020-11-11 18:36:26,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:36:26,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:36:26,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815850747] [2020-11-11 18:36:26,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:36:26,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:36:26,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:36:26,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:36:26,956 INFO L87 Difference]: Start difference. First operand 9751 states and 26413 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:28,634 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:36:28,904 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-11-11 18:36:29,190 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:36:29,542 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:36:29,892 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-11 18:36:30,299 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2020-11-11 18:36:30,699 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2020-11-11 18:36:31,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:36:31,343 INFO L93 Difference]: Finished difference Result 14906 states and 39177 transitions. [2020-11-11 18:36:31,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:36:31,344 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:36:31,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:36:31,360 INFO L225 Difference]: With dead ends: 14906 [2020-11-11 18:36:31,360 INFO L226 Difference]: Without dead ends: 14906 [2020-11-11 18:36:31,361 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=439, Invalid=1541, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:36:31,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14906 states. [2020-11-11 18:36:31,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14906 to 9738. [2020-11-11 18:36:31,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9738 states, 9736 states have (on average 2.7090180772391124) internal successors, (26375), 9737 states have internal predecessors, (26375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:31,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9738 states to 9738 states and 26375 transitions. [2020-11-11 18:36:31,545 INFO L78 Accepts]: Start accepts. Automaton has 9738 states and 26375 transitions. Word has length 110 [2020-11-11 18:36:31,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:36:31,545 INFO L481 AbstractCegarLoop]: Abstraction has 9738 states and 26375 transitions. [2020-11-11 18:36:31,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:31,546 INFO L276 IsEmpty]: Start isEmpty. Operand 9738 states and 26375 transitions. [2020-11-11 18:36:31,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:36:31,555 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:36:31,555 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:36:31,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-11-11 18:36:31,555 INFO L429 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]=== [2020-11-11 18:36:31,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:36:31,556 INFO L82 PathProgramCache]: Analyzing trace with hash -762835537, now seen corresponding path program 29 times [2020-11-11 18:36:31,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:36:31,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889150887] [2020-11-11 18:36:31,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:36:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:36:32,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:36:32,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889150887] [2020-11-11 18:36:32,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:36:32,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:36:32,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800357562] [2020-11-11 18:36:32,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:36:32,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:36:32,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:36:32,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:36:32,368 INFO L87 Difference]: Start difference. First operand 9738 states and 26375 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:34,049 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:36:34,313 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-11-11 18:36:34,595 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:36:34,942 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:36:35,300 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:36:35,689 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2020-11-11 18:36:36,015 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-11-11 18:36:36,418 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2020-11-11 18:36:37,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:36:37,062 INFO L93 Difference]: Finished difference Result 15865 states and 41535 transitions. [2020-11-11 18:36:37,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-11 18:36:37,064 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:36:37,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:36:37,080 INFO L225 Difference]: With dead ends: 15865 [2020-11-11 18:36:37,080 INFO L226 Difference]: Without dead ends: 15865 [2020-11-11 18:36:37,080 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=469, Invalid=1601, Unknown=0, NotChecked=0, Total=2070 [2020-11-11 18:36:37,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15865 states. [2020-11-11 18:36:37,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15865 to 9725. [2020-11-11 18:36:37,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9725 states, 9723 states have (on average 2.708731872878741) internal successors, (26337), 9724 states have internal predecessors, (26337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:37,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9725 states to 9725 states and 26337 transitions. [2020-11-11 18:36:37,258 INFO L78 Accepts]: Start accepts. Automaton has 9725 states and 26337 transitions. Word has length 110 [2020-11-11 18:36:37,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:36:37,259 INFO L481 AbstractCegarLoop]: Abstraction has 9725 states and 26337 transitions. [2020-11-11 18:36:37,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:37,259 INFO L276 IsEmpty]: Start isEmpty. Operand 9725 states and 26337 transitions. [2020-11-11 18:36:37,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:36:37,268 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:36:37,268 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:36:37,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-11-11 18:36:37,268 INFO L429 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]=== [2020-11-11 18:36:37,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:36:37,269 INFO L82 PathProgramCache]: Analyzing trace with hash -942312459, now seen corresponding path program 30 times [2020-11-11 18:36:37,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:36:37,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329031505] [2020-11-11 18:36:37,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:36:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:36:38,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:36:38,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329031505] [2020-11-11 18:36:38,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:36:38,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:36:38,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344889093] [2020-11-11 18:36:38,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:36:38,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:36:38,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:36:38,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:36:38,104 INFO L87 Difference]: Start difference. First operand 9725 states and 26337 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:39,827 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:36:40,092 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-11-11 18:36:40,374 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:36:40,686 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-11-11 18:36:41,015 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2020-11-11 18:36:41,369 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-11-11 18:36:41,785 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2020-11-11 18:36:42,106 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-11-11 18:36:42,520 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2020-11-11 18:36:43,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:36:43,232 INFO L93 Difference]: Finished difference Result 16270 states and 42666 transitions. [2020-11-11 18:36:43,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-11-11 18:36:43,233 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:36:43,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:36:43,250 INFO L225 Difference]: With dead ends: 16270 [2020-11-11 18:36:43,250 INFO L226 Difference]: Without dead ends: 16270 [2020-11-11 18:36:43,251 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=498, Invalid=1664, Unknown=0, NotChecked=0, Total=2162 [2020-11-11 18:36:43,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16270 states. [2020-11-11 18:36:43,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16270 to 9699. [2020-11-11 18:36:43,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9699 states, 9697 states have (on average 2.708157162008869) internal successors, (26261), 9698 states have internal predecessors, (26261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:43,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9699 states to 9699 states and 26261 transitions. [2020-11-11 18:36:43,434 INFO L78 Accepts]: Start accepts. Automaton has 9699 states and 26261 transitions. Word has length 110 [2020-11-11 18:36:43,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:36:43,435 INFO L481 AbstractCegarLoop]: Abstraction has 9699 states and 26261 transitions. [2020-11-11 18:36:43,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:43,435 INFO L276 IsEmpty]: Start isEmpty. Operand 9699 states and 26261 transitions. [2020-11-11 18:36:43,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:36:43,444 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:36:43,444 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:36:43,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-11-11 18:36:43,444 INFO L429 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]=== [2020-11-11 18:36:43,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:36:43,445 INFO L82 PathProgramCache]: Analyzing trace with hash -375079273, now seen corresponding path program 31 times [2020-11-11 18:36:43,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:36:43,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133494048] [2020-11-11 18:36:43,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:36:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:36:44,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:36:44,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133494048] [2020-11-11 18:36:44,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:36:44,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:36:44,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808019745] [2020-11-11 18:36:44,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:36:44,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:36:44,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:36:44,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:36:44,346 INFO L87 Difference]: Start difference. First operand 9699 states and 26261 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:46,039 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:36:46,309 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-11-11 18:36:46,605 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-11-11 18:36:46,898 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2020-11-11 18:36:47,149 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-11-11 18:36:47,472 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-11-11 18:36:47,831 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:36:48,252 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:36:48,581 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2020-11-11 18:36:49,030 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2020-11-11 18:36:49,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:36:49,697 INFO L93 Difference]: Finished difference Result 12655 states and 33283 transitions. [2020-11-11 18:36:49,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-11 18:36:49,698 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:36:49,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:36:49,713 INFO L225 Difference]: With dead ends: 12655 [2020-11-11 18:36:49,713 INFO L226 Difference]: Without dead ends: 12655 [2020-11-11 18:36:49,713 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=526, Invalid=1730, Unknown=0, NotChecked=0, Total=2256 [2020-11-11 18:36:49,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12655 states. [2020-11-11 18:36:49,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12655 to 8100. [2020-11-11 18:36:49,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8100 states, 8098 states have (on average 2.687330204988886) internal successors, (21762), 8099 states have internal predecessors, (21762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:49,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8100 states to 8100 states and 21762 transitions. [2020-11-11 18:36:49,869 INFO L78 Accepts]: Start accepts. Automaton has 8100 states and 21762 transitions. Word has length 110 [2020-11-11 18:36:49,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:36:49,869 INFO L481 AbstractCegarLoop]: Abstraction has 8100 states and 21762 transitions. [2020-11-11 18:36:49,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:49,869 INFO L276 IsEmpty]: Start isEmpty. Operand 8100 states and 21762 transitions. [2020-11-11 18:36:49,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:36:49,877 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:36:49,877 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:36:49,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-11-11 18:36:49,877 INFO L429 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]=== [2020-11-11 18:36:49,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:36:49,879 INFO L82 PathProgramCache]: Analyzing trace with hash -116723431, now seen corresponding path program 6 times [2020-11-11 18:36:49,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:36:49,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816358386] [2020-11-11 18:36:49,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:36:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:36:50,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:36:50,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816358386] [2020-11-11 18:36:50,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:36:50,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:36:50,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099509802] [2020-11-11 18:36:50,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:36:50,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:36:50,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:36:50,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:36:50,543 INFO L87 Difference]: Start difference. First operand 8100 states and 21762 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:55,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:36:55,688 INFO L93 Difference]: Finished difference Result 11568 states and 30656 transitions. [2020-11-11 18:36:55,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-11-11 18:36:55,689 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:36:55,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:36:55,701 INFO L225 Difference]: With dead ends: 11568 [2020-11-11 18:36:55,701 INFO L226 Difference]: Without dead ends: 11486 [2020-11-11 18:36:55,702 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1325, Invalid=2707, Unknown=0, NotChecked=0, Total=4032 [2020-11-11 18:36:55,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11486 states. [2020-11-11 18:36:55,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11486 to 8816. [2020-11-11 18:36:55,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8816 states, 8814 states have (on average 2.6923076923076925) internal successors, (23730), 8815 states have internal predecessors, (23730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:55,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8816 states to 8816 states and 23730 transitions. [2020-11-11 18:36:55,857 INFO L78 Accepts]: Start accepts. Automaton has 8816 states and 23730 transitions. Word has length 110 [2020-11-11 18:36:55,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:36:55,857 INFO L481 AbstractCegarLoop]: Abstraction has 8816 states and 23730 transitions. [2020-11-11 18:36:55,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:55,857 INFO L276 IsEmpty]: Start isEmpty. Operand 8816 states and 23730 transitions. [2020-11-11 18:36:55,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:36:55,865 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:36:55,865 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:36:55,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-11-11 18:36:55,866 INFO L429 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]=== [2020-11-11 18:36:55,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:36:55,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1766933105, now seen corresponding path program 32 times [2020-11-11 18:36:55,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:36:55,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788529835] [2020-11-11 18:36:55,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:36:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:36:56,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:36:56,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788529835] [2020-11-11 18:36:56,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:36:56,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:36:56,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93598005] [2020-11-11 18:36:56,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:36:56,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:36:56,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:36:56,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:36:56,610 INFO L87 Difference]: Start difference. First operand 8816 states and 23730 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:36:58,316 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-11 18:36:58,532 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-11 18:36:58,811 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-11-11 18:36:59,152 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:36:59,503 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-11 18:36:59,882 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2020-11-11 18:37:00,290 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2020-11-11 18:37:00,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:37:00,890 INFO L93 Difference]: Finished difference Result 12606 states and 33115 transitions. [2020-11-11 18:37:00,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:37:00,891 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:37:00,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:37:00,906 INFO L225 Difference]: With dead ends: 12606 [2020-11-11 18:37:00,906 INFO L226 Difference]: Without dead ends: 12606 [2020-11-11 18:37:00,907 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=439, Invalid=1541, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:37:00,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12606 states. [2020-11-11 18:37:01,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12606 to 8738. [2020-11-11 18:37:01,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8738 states, 8736 states have (on average 2.6902472527472527) internal successors, (23502), 8737 states have internal predecessors, (23502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:01,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8738 states to 8738 states and 23502 transitions. [2020-11-11 18:37:01,060 INFO L78 Accepts]: Start accepts. Automaton has 8738 states and 23502 transitions. Word has length 110 [2020-11-11 18:37:01,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:37:01,061 INFO L481 AbstractCegarLoop]: Abstraction has 8738 states and 23502 transitions. [2020-11-11 18:37:01,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:01,061 INFO L276 IsEmpty]: Start isEmpty. Operand 8738 states and 23502 transitions. [2020-11-11 18:37:01,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:37:01,071 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:37:01,071 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:37:01,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-11-11 18:37:01,071 INFO L429 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]=== [2020-11-11 18:37:01,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:37:01,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1836594159, now seen corresponding path program 33 times [2020-11-11 18:37:01,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:37:01,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18214020] [2020-11-11 18:37:01,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:37:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:37:01,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:37:01,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18214020] [2020-11-11 18:37:01,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:37:01,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:37:01,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029118743] [2020-11-11 18:37:01,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:37:01,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:37:01,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:37:01,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:37:01,935 INFO L87 Difference]: Start difference. First operand 8738 states and 23502 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:03,682 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-11 18:37:03,893 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-11 18:37:04,178 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-11-11 18:37:04,566 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:37:04,914 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-11 18:37:05,328 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2020-11-11 18:37:05,732 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2020-11-11 18:37:06,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:37:06,382 INFO L93 Difference]: Finished difference Result 13244 states and 34580 transitions. [2020-11-11 18:37:06,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:37:06,383 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:37:06,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:37:06,397 INFO L225 Difference]: With dead ends: 13244 [2020-11-11 18:37:06,398 INFO L226 Difference]: Without dead ends: 13244 [2020-11-11 18:37:06,398 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=439, Invalid=1541, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:37:06,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13244 states. [2020-11-11 18:37:06,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13244 to 8725. [2020-11-11 18:37:06,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8725 states, 8723 states have (on average 2.6899002636707556) internal successors, (23464), 8724 states have internal predecessors, (23464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:06,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8725 states to 8725 states and 23464 transitions. [2020-11-11 18:37:06,560 INFO L78 Accepts]: Start accepts. Automaton has 8725 states and 23464 transitions. Word has length 110 [2020-11-11 18:37:06,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:37:06,560 INFO L481 AbstractCegarLoop]: Abstraction has 8725 states and 23464 transitions. [2020-11-11 18:37:06,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:06,560 INFO L276 IsEmpty]: Start isEmpty. Operand 8725 states and 23464 transitions. [2020-11-11 18:37:06,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:37:06,569 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:37:06,569 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:37:06,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-11-11 18:37:06,569 INFO L429 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]=== [2020-11-11 18:37:06,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:37:06,569 INFO L82 PathProgramCache]: Analyzing trace with hash -702477971, now seen corresponding path program 34 times [2020-11-11 18:37:06,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:37:06,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777716597] [2020-11-11 18:37:06,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:37:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:37:07,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:37:07,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777716597] [2020-11-11 18:37:07,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:37:07,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:37:07,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615156353] [2020-11-11 18:37:07,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:37:07,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:37:07,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:37:07,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:37:07,384 INFO L87 Difference]: Start difference. First operand 8725 states and 23464 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:09,161 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-11 18:37:09,381 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-11 18:37:09,669 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-11-11 18:37:10,019 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:37:10,385 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:37:10,782 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2020-11-11 18:37:11,109 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-11-11 18:37:11,532 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2020-11-11 18:37:12,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:37:12,228 INFO L93 Difference]: Finished difference Result 14203 states and 36938 transitions. [2020-11-11 18:37:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-11 18:37:12,229 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:37:12,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:37:12,245 INFO L225 Difference]: With dead ends: 14203 [2020-11-11 18:37:12,245 INFO L226 Difference]: Without dead ends: 14203 [2020-11-11 18:37:12,245 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=469, Invalid=1601, Unknown=0, NotChecked=0, Total=2070 [2020-11-11 18:37:12,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14203 states. [2020-11-11 18:37:12,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14203 to 8712. [2020-11-11 18:37:12,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8712 states, 8710 states have (on average 2.68955223880597) internal successors, (23426), 8711 states have internal predecessors, (23426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:12,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8712 states to 8712 states and 23426 transitions. [2020-11-11 18:37:12,403 INFO L78 Accepts]: Start accepts. Automaton has 8712 states and 23426 transitions. Word has length 110 [2020-11-11 18:37:12,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:37:12,404 INFO L481 AbstractCegarLoop]: Abstraction has 8712 states and 23426 transitions. [2020-11-11 18:37:12,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:12,404 INFO L276 IsEmpty]: Start isEmpty. Operand 8712 states and 23426 transitions. [2020-11-11 18:37:12,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:37:12,415 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:37:12,415 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:37:12,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-11-11 18:37:12,416 INFO L429 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]=== [2020-11-11 18:37:12,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:37:12,416 INFO L82 PathProgramCache]: Analyzing trace with hash -881954893, now seen corresponding path program 35 times [2020-11-11 18:37:12,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:37:12,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594177452] [2020-11-11 18:37:12,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:37:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:37:13,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:37:13,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594177452] [2020-11-11 18:37:13,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:37:13,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:37:13,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995974305] [2020-11-11 18:37:13,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:37:13,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:37:13,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:37:13,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:37:13,250 INFO L87 Difference]: Start difference. First operand 8712 states and 23426 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:14,868 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:37:15,085 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-11 18:37:15,307 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-11 18:37:15,598 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-11-11 18:37:15,908 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2020-11-11 18:37:16,234 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2020-11-11 18:37:16,594 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:37:17,015 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:37:17,340 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-11-11 18:37:17,810 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2020-11-11 18:37:18,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:37:18,526 INFO L93 Difference]: Finished difference Result 14608 states and 38069 transitions. [2020-11-11 18:37:18,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-11-11 18:37:18,527 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:37:18,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:37:18,544 INFO L225 Difference]: With dead ends: 14608 [2020-11-11 18:37:18,544 INFO L226 Difference]: Without dead ends: 14608 [2020-11-11 18:37:18,544 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=498, Invalid=1664, Unknown=0, NotChecked=0, Total=2162 [2020-11-11 18:37:18,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14608 states. [2020-11-11 18:37:18,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14608 to 8686. [2020-11-11 18:37:18,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8686 states, 8684 states have (on average 2.68885306310456) internal successors, (23350), 8685 states have internal predecessors, (23350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:18,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8686 states to 8686 states and 23350 transitions. [2020-11-11 18:37:18,714 INFO L78 Accepts]: Start accepts. Automaton has 8686 states and 23350 transitions. Word has length 110 [2020-11-11 18:37:18,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:37:18,714 INFO L481 AbstractCegarLoop]: Abstraction has 8686 states and 23350 transitions. [2020-11-11 18:37:18,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:18,714 INFO L276 IsEmpty]: Start isEmpty. Operand 8686 states and 23350 transitions. [2020-11-11 18:37:18,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:37:18,722 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:37:18,722 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:37:18,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-11-11 18:37:18,723 INFO L429 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]=== [2020-11-11 18:37:18,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:37:18,723 INFO L82 PathProgramCache]: Analyzing trace with hash -314721707, now seen corresponding path program 36 times [2020-11-11 18:37:18,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:37:18,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816487676] [2020-11-11 18:37:18,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:37:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:37:19,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:37:19,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816487676] [2020-11-11 18:37:19,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:37:19,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:37:19,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877695991] [2020-11-11 18:37:19,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:37:19,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:37:19,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:37:19,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:37:19,640 INFO L87 Difference]: Start difference. First operand 8686 states and 23350 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:21,401 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-11 18:37:21,622 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-11 18:37:21,918 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-11-11 18:37:22,204 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-11-11 18:37:22,447 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2020-11-11 18:37:22,768 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2020-11-11 18:37:23,131 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2020-11-11 18:37:23,562 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-11-11 18:37:23,884 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2020-11-11 18:37:24,346 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2020-11-11 18:37:25,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:37:25,102 INFO L93 Difference]: Finished difference Result 15013 states and 39200 transitions. [2020-11-11 18:37:25,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-11 18:37:25,104 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:37:25,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:37:25,120 INFO L225 Difference]: With dead ends: 15013 [2020-11-11 18:37:25,120 INFO L226 Difference]: Without dead ends: 15013 [2020-11-11 18:37:25,121 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=526, Invalid=1730, Unknown=0, NotChecked=0, Total=2256 [2020-11-11 18:37:25,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15013 states. [2020-11-11 18:37:25,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15013 to 8673. [2020-11-11 18:37:25,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8673 states, 8671 states have (on average 2.6885019028947066) internal successors, (23312), 8672 states have internal predecessors, (23312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:25,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8673 states to 8673 states and 23312 transitions. [2020-11-11 18:37:25,283 INFO L78 Accepts]: Start accepts. Automaton has 8673 states and 23312 transitions. Word has length 110 [2020-11-11 18:37:25,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:37:25,284 INFO L481 AbstractCegarLoop]: Abstraction has 8673 states and 23312 transitions. [2020-11-11 18:37:25,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:25,284 INFO L276 IsEmpty]: Start isEmpty. Operand 8673 states and 23312 transitions. [2020-11-11 18:37:25,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:37:25,295 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:37:25,295 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:37:25,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-11-11 18:37:25,296 INFO L429 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]=== [2020-11-11 18:37:25,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:37:25,296 INFO L82 PathProgramCache]: Analyzing trace with hash -969483223, now seen corresponding path program 37 times [2020-11-11 18:37:25,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:37:25,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77342541] [2020-11-11 18:37:25,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:37:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:37:26,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:37:26,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77342541] [2020-11-11 18:37:26,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:37:26,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:37:26,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306200824] [2020-11-11 18:37:26,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:37:26,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:37:26,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:37:26,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:37:26,227 INFO L87 Difference]: Start difference. First operand 8673 states and 23312 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:27,848 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:37:28,062 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-11 18:37:28,305 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-11-11 18:37:28,584 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2020-11-11 18:37:28,804 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-11-11 18:37:29,099 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2020-11-11 18:37:29,356 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-11-11 18:37:29,711 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-11-11 18:37:30,092 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:37:30,533 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:37:30,877 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2020-11-11 18:37:31,383 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2020-11-11 18:37:32,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:37:32,075 INFO L93 Difference]: Finished difference Result 10980 states and 28648 transitions. [2020-11-11 18:37:32,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-11-11 18:37:32,076 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:37:32,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:37:32,088 INFO L225 Difference]: With dead ends: 10980 [2020-11-11 18:37:32,088 INFO L226 Difference]: Without dead ends: 10980 [2020-11-11 18:37:32,088 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=553, Invalid=1799, Unknown=0, NotChecked=0, Total=2352 [2020-11-11 18:37:32,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10980 states. [2020-11-11 18:37:32,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10980 to 6983. [2020-11-11 18:37:32,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6983 states, 6981 states have (on average 2.656782695888841) internal successors, (18547), 6982 states have internal predecessors, (18547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:32,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6983 states to 6983 states and 18547 transitions. [2020-11-11 18:37:32,210 INFO L78 Accepts]: Start accepts. Automaton has 6983 states and 18547 transitions. Word has length 110 [2020-11-11 18:37:32,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:37:32,211 INFO L481 AbstractCegarLoop]: Abstraction has 6983 states and 18547 transitions. [2020-11-11 18:37:32,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:32,211 INFO L276 IsEmpty]: Start isEmpty. Operand 6983 states and 18547 transitions. [2020-11-11 18:37:32,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:37:32,218 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:37:32,218 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:37:32,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-11-11 18:37:32,218 INFO L429 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]=== [2020-11-11 18:37:32,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:37:32,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1063010375, now seen corresponding path program 7 times [2020-11-11 18:37:32,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:37:32,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016964348] [2020-11-11 18:37:32,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:37:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:37:32,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:37:32,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016964348] [2020-11-11 18:37:32,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:37:32,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:37:32,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661159923] [2020-11-11 18:37:32,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:37:32,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:37:32,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:37:32,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:37:32,941 INFO L87 Difference]: Start difference. First operand 6983 states and 18547 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:37,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:37:37,160 INFO L93 Difference]: Finished difference Result 13282 states and 35606 transitions. [2020-11-11 18:37:37,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-11-11 18:37:37,161 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:37:37,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:37:37,177 INFO L225 Difference]: With dead ends: 13282 [2020-11-11 18:37:37,177 INFO L226 Difference]: Without dead ends: 13130 [2020-11-11 18:37:37,178 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=992, Invalid=2088, Unknown=0, NotChecked=0, Total=3080 [2020-11-11 18:37:37,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13130 states. [2020-11-11 18:37:37,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13130 to 9602. [2020-11-11 18:37:37,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9602 states, 9600 states have (on average 2.693020833333333) internal successors, (25853), 9601 states have internal predecessors, (25853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:37,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9602 states to 9602 states and 25853 transitions. [2020-11-11 18:37:37,354 INFO L78 Accepts]: Start accepts. Automaton has 9602 states and 25853 transitions. Word has length 110 [2020-11-11 18:37:37,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:37:37,354 INFO L481 AbstractCegarLoop]: Abstraction has 9602 states and 25853 transitions. [2020-11-11 18:37:37,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:37,355 INFO L276 IsEmpty]: Start isEmpty. Operand 9602 states and 25853 transitions. [2020-11-11 18:37:37,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:37:37,365 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:37:37,365 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:37:37,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-11-11 18:37:37,365 INFO L429 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]=== [2020-11-11 18:37:37,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:37:37,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1581747247, now seen corresponding path program 38 times [2020-11-11 18:37:37,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:37:37,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056286841] [2020-11-11 18:37:37,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:37:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:37:38,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:37:38,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056286841] [2020-11-11 18:37:38,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:37:38,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:37:38,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674693681] [2020-11-11 18:37:38,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:37:38,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:37:38,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:37:38,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:37:38,180 INFO L87 Difference]: Start difference. First operand 9602 states and 25853 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:39,642 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:37:39,860 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:37:40,178 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2020-11-11 18:37:40,467 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:37:40,795 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-11 18:37:41,225 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-11-11 18:37:41,632 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2020-11-11 18:37:42,075 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 72 [2020-11-11 18:37:42,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:37:42,712 INFO L93 Difference]: Finished difference Result 19595 states and 51944 transitions. [2020-11-11 18:37:42,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:37:42,713 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:37:42,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:37:42,734 INFO L225 Difference]: With dead ends: 19595 [2020-11-11 18:37:42,734 INFO L226 Difference]: Without dead ends: 19595 [2020-11-11 18:37:42,735 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:37:42,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19595 states. [2020-11-11 18:37:42,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19595 to 9626. [2020-11-11 18:37:42,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9626 states, 9624 states have (on average 2.6912926018287613) internal successors, (25901), 9625 states have internal predecessors, (25901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:42,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9626 states to 9626 states and 25901 transitions. [2020-11-11 18:37:42,965 INFO L78 Accepts]: Start accepts. Automaton has 9626 states and 25901 transitions. Word has length 110 [2020-11-11 18:37:42,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:37:42,965 INFO L481 AbstractCegarLoop]: Abstraction has 9626 states and 25901 transitions. [2020-11-11 18:37:42,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:42,966 INFO L276 IsEmpty]: Start isEmpty. Operand 9626 states and 25901 transitions. [2020-11-11 18:37:42,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:37:42,975 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:37:42,975 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:37:42,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-11-11 18:37:42,975 INFO L429 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]=== [2020-11-11 18:37:42,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:37:42,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1512086193, now seen corresponding path program 39 times [2020-11-11 18:37:42,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:37:42,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980132597] [2020-11-11 18:37:42,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:37:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:37:43,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:37:43,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980132597] [2020-11-11 18:37:43,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:37:43,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:37:43,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392736254] [2020-11-11 18:37:43,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:37:43,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:37:43,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:37:43,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:37:43,976 INFO L87 Difference]: Start difference. First operand 9626 states and 25901 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:45,442 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:37:45,662 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:37:45,985 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2020-11-11 18:37:46,276 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:37:46,620 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-11 18:37:47,056 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-11-11 18:37:47,503 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2020-11-11 18:37:47,928 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2020-11-11 18:37:48,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:37:48,618 INFO L93 Difference]: Finished difference Result 19217 states and 50572 transitions. [2020-11-11 18:37:48,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:37:48,619 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:37:48,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:37:48,640 INFO L225 Difference]: With dead ends: 19217 [2020-11-11 18:37:48,641 INFO L226 Difference]: Without dead ends: 19217 [2020-11-11 18:37:48,641 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:37:48,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19217 states. [2020-11-11 18:37:48,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19217 to 9518. [2020-11-11 18:37:48,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9518 states, 9516 states have (on average 2.688839848675914) internal successors, (25587), 9517 states have internal predecessors, (25587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:48,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9518 states to 9518 states and 25587 transitions. [2020-11-11 18:37:48,864 INFO L78 Accepts]: Start accepts. Automaton has 9518 states and 25587 transitions. Word has length 110 [2020-11-11 18:37:48,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:37:48,864 INFO L481 AbstractCegarLoop]: Abstraction has 9518 states and 25587 transitions. [2020-11-11 18:37:48,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:48,865 INFO L276 IsEmpty]: Start isEmpty. Operand 9518 states and 25587 transitions. [2020-11-11 18:37:48,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:37:48,877 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:37:48,877 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:37:48,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-11-11 18:37:48,877 INFO L429 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]=== [2020-11-11 18:37:48,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:37:48,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1555085809, now seen corresponding path program 40 times [2020-11-11 18:37:48,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:37:48,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689794038] [2020-11-11 18:37:48,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:37:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:37:49,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:37:49,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689794038] [2020-11-11 18:37:49,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:37:49,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:37:49,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904136476] [2020-11-11 18:37:49,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:37:49,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:37:49,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:37:49,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:37:49,642 INFO L87 Difference]: Start difference. First operand 9518 states and 25587 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:51,146 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:37:51,368 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:37:51,680 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2020-11-11 18:37:51,971 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:37:52,312 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-11 18:37:52,657 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2020-11-11 18:37:53,137 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2020-11-11 18:37:53,573 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2020-11-11 18:37:54,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:37:54,213 INFO L93 Difference]: Finished difference Result 17699 states and 46571 transitions. [2020-11-11 18:37:54,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:37:54,215 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:37:54,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:37:54,235 INFO L225 Difference]: With dead ends: 17699 [2020-11-11 18:37:54,236 INFO L226 Difference]: Without dead ends: 17699 [2020-11-11 18:37:54,236 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:37:54,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17699 states. [2020-11-11 18:37:54,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17699 to 8121. [2020-11-11 18:37:54,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8121 states, 8119 states have (on average 2.6683089050375663) internal successors, (21664), 8120 states have internal predecessors, (21664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:54,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8121 states to 8121 states and 21664 transitions. [2020-11-11 18:37:54,430 INFO L78 Accepts]: Start accepts. Automaton has 8121 states and 21664 transitions. Word has length 110 [2020-11-11 18:37:54,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:37:54,430 INFO L481 AbstractCegarLoop]: Abstraction has 8121 states and 21664 transitions. [2020-11-11 18:37:54,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:54,431 INFO L276 IsEmpty]: Start isEmpty. Operand 8121 states and 21664 transitions. [2020-11-11 18:37:54,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:37:54,438 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:37:54,438 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:37:54,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-11-11 18:37:54,439 INFO L429 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]=== [2020-11-11 18:37:54,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:37:54,439 INFO L82 PathProgramCache]: Analyzing trace with hash 875010207, now seen corresponding path program 8 times [2020-11-11 18:37:54,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:37:54,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416224154] [2020-11-11 18:37:54,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:37:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:37:55,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:37:55,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416224154] [2020-11-11 18:37:55,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:37:55,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:37:55,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954668519] [2020-11-11 18:37:55,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:37:55,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:37:55,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:37:55,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:37:55,158 INFO L87 Difference]: Start difference. First operand 8121 states and 21664 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:37:59,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:37:59,967 INFO L93 Difference]: Finished difference Result 13125 states and 35002 transitions. [2020-11-11 18:37:59,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-11-11 18:37:59,968 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:37:59,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:37:59,984 INFO L225 Difference]: With dead ends: 13125 [2020-11-11 18:37:59,984 INFO L226 Difference]: Without dead ends: 13027 [2020-11-11 18:37:59,985 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1023, Invalid=2169, Unknown=0, NotChecked=0, Total=3192 [2020-11-11 18:38:00,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13027 states. [2020-11-11 18:38:00,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13027 to 8651. [2020-11-11 18:38:00,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8651 states, 8649 states have (on average 2.6773037345357844) internal successors, (23156), 8650 states have internal predecessors, (23156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:00,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8651 states to 8651 states and 23156 transitions. [2020-11-11 18:38:00,148 INFO L78 Accepts]: Start accepts. Automaton has 8651 states and 23156 transitions. Word has length 110 [2020-11-11 18:38:00,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:38:00,148 INFO L481 AbstractCegarLoop]: Abstraction has 8651 states and 23156 transitions. [2020-11-11 18:38:00,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:00,149 INFO L276 IsEmpty]: Start isEmpty. Operand 8651 states and 23156 transitions. [2020-11-11 18:38:00,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:38:00,157 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:38:00,157 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:38:00,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-11-11 18:38:00,157 INFO L429 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]=== [2020-11-11 18:38:00,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:38:00,157 INFO L82 PathProgramCache]: Analyzing trace with hash -775199467, now seen corresponding path program 41 times [2020-11-11 18:38:00,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:38:00,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677204771] [2020-11-11 18:38:00,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:38:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:38:00,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:38:00,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677204771] [2020-11-11 18:38:00,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:38:00,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:38:00,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906079619] [2020-11-11 18:38:00,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:38:00,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:38:00,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:38:00,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:38:00,982 INFO L87 Difference]: Start difference. First operand 8651 states and 23156 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:02,469 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:38:02,691 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:38:03,017 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2020-11-11 18:38:03,317 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:38:03,697 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-11-11 18:38:04,073 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-11-11 18:38:04,506 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:38:04,935 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2020-11-11 18:38:05,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:38:05,620 INFO L93 Difference]: Finished difference Result 17511 states and 46125 transitions. [2020-11-11 18:38:05,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:38:05,621 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:38:05,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:38:05,641 INFO L225 Difference]: With dead ends: 17511 [2020-11-11 18:38:05,641 INFO L226 Difference]: Without dead ends: 17511 [2020-11-11 18:38:05,642 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:38:05,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17511 states. [2020-11-11 18:38:05,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17511 to 8561. [2020-11-11 18:38:05,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8561 states, 8559 states have (on average 2.675312536511275) internal successors, (22898), 8560 states have internal predecessors, (22898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:05,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8561 states to 8561 states and 22898 transitions. [2020-11-11 18:38:05,839 INFO L78 Accepts]: Start accepts. Automaton has 8561 states and 22898 transitions. Word has length 110 [2020-11-11 18:38:05,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:38:05,840 INFO L481 AbstractCegarLoop]: Abstraction has 8561 states and 22898 transitions. [2020-11-11 18:38:05,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:05,840 INFO L276 IsEmpty]: Start isEmpty. Operand 8561 states and 22898 transitions. [2020-11-11 18:38:05,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:38:05,848 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:38:05,848 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:38:05,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-11-11 18:38:05,848 INFO L429 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]=== [2020-11-11 18:38:05,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:38:05,849 INFO L82 PathProgramCache]: Analyzing trace with hash -844860521, now seen corresponding path program 42 times [2020-11-11 18:38:05,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:38:05,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985229378] [2020-11-11 18:38:05,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:38:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:38:06,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:38:06,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985229378] [2020-11-11 18:38:06,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:38:06,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:38:06,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027301660] [2020-11-11 18:38:06,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:38:06,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:38:06,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:38:06,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:38:06,754 INFO L87 Difference]: Start difference. First operand 8561 states and 22898 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:08,279 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:38:08,509 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:38:08,842 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2020-11-11 18:38:09,141 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:38:09,529 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-11-11 18:38:09,907 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-11-11 18:38:10,361 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2020-11-11 18:38:10,821 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2020-11-11 18:38:11,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:38:11,567 INFO L93 Difference]: Finished difference Result 18256 states and 47783 transitions. [2020-11-11 18:38:11,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:38:11,569 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:38:11,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:38:11,587 INFO L225 Difference]: With dead ends: 18256 [2020-11-11 18:38:11,588 INFO L226 Difference]: Without dead ends: 18256 [2020-11-11 18:38:11,588 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:38:11,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18256 states. [2020-11-11 18:38:11,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18256 to 8546. [2020-11-11 18:38:11,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8546 states, 8544 states have (on average 2.6749765917602994) internal successors, (22855), 8545 states have internal predecessors, (22855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:11,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8546 states to 8546 states and 22855 transitions. [2020-11-11 18:38:11,781 INFO L78 Accepts]: Start accepts. Automaton has 8546 states and 22855 transitions. Word has length 110 [2020-11-11 18:38:11,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:38:11,782 INFO L481 AbstractCegarLoop]: Abstraction has 8546 states and 22855 transitions. [2020-11-11 18:38:11,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:11,782 INFO L276 IsEmpty]: Start isEmpty. Operand 8546 states and 22855 transitions. [2020-11-11 18:38:11,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:38:11,789 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:38:11,790 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:38:11,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-11-11 18:38:11,790 INFO L429 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]=== [2020-11-11 18:38:11,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:38:11,790 INFO L82 PathProgramCache]: Analyzing trace with hash 289255667, now seen corresponding path program 43 times [2020-11-11 18:38:11,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:38:11,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487179288] [2020-11-11 18:38:11,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:38:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:38:12,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:38:12,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487179288] [2020-11-11 18:38:12,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:38:12,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:38:12,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585797297] [2020-11-11 18:38:12,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:38:12,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:38:12,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:38:12,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:38:12,716 INFO L87 Difference]: Start difference. First operand 8546 states and 22855 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:14,214 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:38:14,447 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:38:14,776 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2020-11-11 18:38:15,080 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:38:15,471 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-11-11 18:38:15,869 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-11-11 18:38:16,322 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2020-11-11 18:38:16,670 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-11-11 18:38:17,106 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2020-11-11 18:38:17,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:38:17,831 INFO L93 Difference]: Finished difference Result 16282 states and 42597 transitions. [2020-11-11 18:38:17,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:38:17,832 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:38:17,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:38:17,850 INFO L225 Difference]: With dead ends: 16282 [2020-11-11 18:38:17,850 INFO L226 Difference]: Without dead ends: 16282 [2020-11-11 18:38:17,851 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=448, Invalid=1532, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:38:17,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16282 states. [2020-11-11 18:38:17,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16282 to 7190. [2020-11-11 18:38:18,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7190 states, 7188 states have (on average 2.650389538119087) internal successors, (19051), 7189 states have internal predecessors, (19051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:18,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7190 states to 7190 states and 19051 transitions. [2020-11-11 18:38:18,015 INFO L78 Accepts]: Start accepts. Automaton has 7190 states and 19051 transitions. Word has length 110 [2020-11-11 18:38:18,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:38:18,015 INFO L481 AbstractCegarLoop]: Abstraction has 7190 states and 19051 transitions. [2020-11-11 18:38:18,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:18,015 INFO L276 IsEmpty]: Start isEmpty. Operand 7190 states and 19051 transitions. [2020-11-11 18:38:18,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:38:18,022 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:38:18,023 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:38:18,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2020-11-11 18:38:18,023 INFO L429 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]=== [2020-11-11 18:38:18,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:38:18,023 INFO L82 PathProgramCache]: Analyzing trace with hash 462511799, now seen corresponding path program 9 times [2020-11-11 18:38:18,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:38:18,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633652166] [2020-11-11 18:38:18,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:38:18,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:38:18,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:38:18,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633652166] [2020-11-11 18:38:18,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:38:18,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:38:18,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764650646] [2020-11-11 18:38:18,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:38:18,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:38:18,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:38:18,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:38:18,778 INFO L87 Difference]: Start difference. First operand 7190 states and 19051 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:23,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:38:23,542 INFO L93 Difference]: Finished difference Result 12770 states and 33826 transitions. [2020-11-11 18:38:23,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-11-11 18:38:23,543 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:38:23,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:38:23,558 INFO L225 Difference]: With dead ends: 12770 [2020-11-11 18:38:23,559 INFO L226 Difference]: Without dead ends: 12609 [2020-11-11 18:38:23,559 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1038, Invalid=2154, Unknown=0, NotChecked=0, Total=3192 [2020-11-11 18:38:23,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12609 states. [2020-11-11 18:38:23,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12609 to 10576. [2020-11-11 18:38:23,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10576 states, 10574 states have (on average 2.7015320597692454) internal successors, (28566), 10575 states have internal predecessors, (28566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:23,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10576 states to 10576 states and 28566 transitions. [2020-11-11 18:38:23,817 INFO L78 Accepts]: Start accepts. Automaton has 10576 states and 28566 transitions. Word has length 110 [2020-11-11 18:38:23,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:38:23,818 INFO L481 AbstractCegarLoop]: Abstraction has 10576 states and 28566 transitions. [2020-11-11 18:38:23,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:23,818 INFO L276 IsEmpty]: Start isEmpty. Operand 10576 states and 28566 transitions. [2020-11-11 18:38:23,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:38:23,827 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:38:23,827 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:38:23,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2020-11-11 18:38:23,828 INFO L429 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]=== [2020-11-11 18:38:23,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:38:23,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1187697875, now seen corresponding path program 44 times [2020-11-11 18:38:23,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:38:23,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625704732] [2020-11-11 18:38:23,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:38:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:38:24,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:38:24,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625704732] [2020-11-11 18:38:24,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:38:24,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:38:24,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708814577] [2020-11-11 18:38:24,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:38:24,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:38:24,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:38:24,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:38:24,734 INFO L87 Difference]: Start difference. First operand 10576 states and 28566 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:26,246 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:38:26,477 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:38:26,806 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2020-11-11 18:38:27,120 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2020-11-11 18:38:27,465 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-11 18:38:27,918 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-11-11 18:38:28,349 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2020-11-11 18:38:28,809 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 72 [2020-11-11 18:38:29,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:38:29,472 INFO L93 Difference]: Finished difference Result 14359 states and 38236 transitions. [2020-11-11 18:38:29,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:38:29,473 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:38:29,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:38:29,489 INFO L225 Difference]: With dead ends: 14359 [2020-11-11 18:38:29,489 INFO L226 Difference]: Without dead ends: 14359 [2020-11-11 18:38:29,490 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:38:29,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14359 states. [2020-11-11 18:38:29,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14359 to 10576. [2020-11-11 18:38:29,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10576 states, 10574 states have (on average 2.7015320597692454) internal successors, (28566), 10575 states have internal predecessors, (28566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:29,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10576 states to 10576 states and 28566 transitions. [2020-11-11 18:38:29,675 INFO L78 Accepts]: Start accepts. Automaton has 10576 states and 28566 transitions. Word has length 110 [2020-11-11 18:38:29,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:38:29,675 INFO L481 AbstractCegarLoop]: Abstraction has 10576 states and 28566 transitions. [2020-11-11 18:38:29,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:29,675 INFO L276 IsEmpty]: Start isEmpty. Operand 10576 states and 28566 transitions. [2020-11-11 18:38:29,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:38:29,686 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:38:29,686 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:38:29,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2020-11-11 18:38:29,686 INFO L429 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]=== [2020-11-11 18:38:29,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:38:29,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1257358929, now seen corresponding path program 45 times [2020-11-11 18:38:29,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:38:29,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105698063] [2020-11-11 18:38:29,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:38:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:38:30,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:38:30,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105698063] [2020-11-11 18:38:30,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:38:30,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:38:30,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80070947] [2020-11-11 18:38:30,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:38:30,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:38:30,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:38:30,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:38:30,706 INFO L87 Difference]: Start difference. First operand 10576 states and 28566 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:32,232 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:38:32,460 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:38:32,797 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2020-11-11 18:38:33,117 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2020-11-11 18:38:33,464 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-11 18:38:33,915 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-11-11 18:38:34,391 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2020-11-11 18:38:34,857 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2020-11-11 18:38:35,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:38:35,554 INFO L93 Difference]: Finished difference Result 13981 states and 36864 transitions. [2020-11-11 18:38:35,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:38:35,555 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:38:35,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:38:35,572 INFO L225 Difference]: With dead ends: 13981 [2020-11-11 18:38:35,572 INFO L226 Difference]: Without dead ends: 13981 [2020-11-11 18:38:35,572 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:38:35,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13981 states. [2020-11-11 18:38:35,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13981 to 10464. [2020-11-11 18:38:35,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10464 states, 10462 states have (on average 2.6994838463008985) internal successors, (28242), 10463 states have internal predecessors, (28242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:35,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10464 states to 10464 states and 28242 transitions. [2020-11-11 18:38:35,766 INFO L78 Accepts]: Start accepts. Automaton has 10464 states and 28242 transitions. Word has length 110 [2020-11-11 18:38:35,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:38:35,766 INFO L481 AbstractCegarLoop]: Abstraction has 10464 states and 28242 transitions. [2020-11-11 18:38:35,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:35,766 INFO L276 IsEmpty]: Start isEmpty. Operand 10464 states and 28242 transitions. [2020-11-11 18:38:35,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:38:35,778 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:38:35,778 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:38:35,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2020-11-11 18:38:35,778 INFO L429 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:38:35,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:38:35,778 INFO L82 PathProgramCache]: Analyzing trace with hash -29563635, now seen corresponding path program 46 times [2020-11-11 18:38:35,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:38:35,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941203258] [2020-11-11 18:38:35,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:38:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:38:36,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:38:36,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941203258] [2020-11-11 18:38:36,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:38:36,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:38:36,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45821263] [2020-11-11 18:38:36,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:38:36,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:38:36,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:38:36,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:38:36,626 INFO L87 Difference]: Start difference. First operand 10464 states and 28242 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:38,212 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:38:38,445 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:38:38,780 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2020-11-11 18:38:39,108 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2020-11-11 18:38:39,450 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-11 18:38:39,812 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2020-11-11 18:38:40,301 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2020-11-11 18:38:40,757 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2020-11-11 18:38:41,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:38:41,369 INFO L93 Difference]: Finished difference Result 13977 states and 36948 transitions. [2020-11-11 18:38:41,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:38:41,371 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:38:41,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:38:41,387 INFO L225 Difference]: With dead ends: 13977 [2020-11-11 18:38:41,387 INFO L226 Difference]: Without dead ends: 13977 [2020-11-11 18:38:41,388 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:38:41,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13977 states. [2020-11-11 18:38:41,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13977 to 10434. [2020-11-11 18:38:41,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10434 states, 10432 states have (on average 2.6990030674846626) internal successors, (28156), 10433 states have internal predecessors, (28156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:41,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10434 states to 10434 states and 28156 transitions. [2020-11-11 18:38:41,570 INFO L78 Accepts]: Start accepts. Automaton has 10434 states and 28156 transitions. Word has length 110 [2020-11-11 18:38:41,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:38:41,570 INFO L481 AbstractCegarLoop]: Abstraction has 10434 states and 28156 transitions. [2020-11-11 18:38:41,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:41,570 INFO L276 IsEmpty]: Start isEmpty. Operand 10434 states and 28156 transitions. [2020-11-11 18:38:41,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:38:41,580 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:38:41,580 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:38:41,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2020-11-11 18:38:41,580 INFO L429 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:38:41,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:38:41,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1501356111, now seen corresponding path program 47 times [2020-11-11 18:38:41,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:38:41,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742353778] [2020-11-11 18:38:41,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:38:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:38:42,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:38:42,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742353778] [2020-11-11 18:38:42,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:38:42,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:38:42,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856976071] [2020-11-11 18:38:42,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:38:42,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:38:42,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:38:42,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:38:42,470 INFO L87 Difference]: Start difference. First operand 10434 states and 28156 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:44,078 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:38:44,308 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:38:44,632 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2020-11-11 18:38:44,958 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2020-11-11 18:38:45,309 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2020-11-11 18:38:45,662 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2020-11-11 18:38:46,167 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-11-11 18:38:46,619 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2020-11-11 18:38:47,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:38:47,209 INFO L93 Difference]: Finished difference Result 11287 states and 29958 transitions. [2020-11-11 18:38:47,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:38:47,211 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:38:47,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:38:47,224 INFO L225 Difference]: With dead ends: 11287 [2020-11-11 18:38:47,224 INFO L226 Difference]: Without dead ends: 11287 [2020-11-11 18:38:47,224 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:38:47,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11287 states. [2020-11-11 18:38:47,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11287 to 9039. [2020-11-11 18:38:47,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9039 states, 9037 states have (on average 2.683301980745823) internal successors, (24249), 9038 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:47,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9039 states to 9039 states and 24249 transitions. [2020-11-11 18:38:47,383 INFO L78 Accepts]: Start accepts. Automaton has 9039 states and 24249 transitions. Word has length 110 [2020-11-11 18:38:47,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:38:47,383 INFO L481 AbstractCegarLoop]: Abstraction has 9039 states and 24249 transitions. [2020-11-11 18:38:47,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:47,383 INFO L276 IsEmpty]: Start isEmpty. Operand 9039 states and 24249 transitions. [2020-11-11 18:38:47,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:38:47,392 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:38:47,392 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:38:47,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2020-11-11 18:38:47,392 INFO L429 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:38:47,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:38:47,392 INFO L82 PathProgramCache]: Analyzing trace with hash 2052404607, now seen corresponding path program 48 times [2020-11-11 18:38:47,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:38:47,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94241218] [2020-11-11 18:38:47,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:38:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:38:47,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:38:47,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94241218] [2020-11-11 18:38:47,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:38:47,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-11-11 18:38:47,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317297545] [2020-11-11 18:38:47,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-11 18:38:47,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:38:47,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-11 18:38:47,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2020-11-11 18:38:47,996 INFO L87 Difference]: Start difference. First operand 9039 states and 24249 transitions. Second operand has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:49,175 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-11-11 18:38:49,425 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-11-11 18:38:50,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:38:50,404 INFO L93 Difference]: Finished difference Result 10564 states and 27487 transitions. [2020-11-11 18:38:50,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-11 18:38:50,405 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:38:50,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:38:50,416 INFO L225 Difference]: With dead ends: 10564 [2020-11-11 18:38:50,416 INFO L226 Difference]: Without dead ends: 10564 [2020-11-11 18:38:50,416 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=307, Invalid=883, Unknown=0, NotChecked=0, Total=1190 [2020-11-11 18:38:50,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10564 states. [2020-11-11 18:38:50,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10564 to 8728. [2020-11-11 18:38:50,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8728 states, 8726 states have (on average 2.6967682787073115) internal successors, (23532), 8727 states have internal predecessors, (23532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:50,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8728 states to 8728 states and 23532 transitions. [2020-11-11 18:38:50,629 INFO L78 Accepts]: Start accepts. Automaton has 8728 states and 23532 transitions. Word has length 110 [2020-11-11 18:38:50,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:38:50,629 INFO L481 AbstractCegarLoop]: Abstraction has 8728 states and 23532 transitions. [2020-11-11 18:38:50,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:50,629 INFO L276 IsEmpty]: Start isEmpty. Operand 8728 states and 23532 transitions. [2020-11-11 18:38:50,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:38:50,637 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:38:50,638 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:38:50,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2020-11-11 18:38:50,638 INFO L429 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:38:50,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:38:50,638 INFO L82 PathProgramCache]: Analyzing trace with hash -854174311, now seen corresponding path program 10 times [2020-11-11 18:38:50,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:38:50,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860109374] [2020-11-11 18:38:50,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:38:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:38:51,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:38:51,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860109374] [2020-11-11 18:38:51,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:38:51,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:38:51,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933749070] [2020-11-11 18:38:51,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:38:51,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:38:51,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:38:51,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:38:51,381 INFO L87 Difference]: Start difference. First operand 8728 states and 23532 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:55,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:38:55,713 INFO L93 Difference]: Finished difference Result 13491 states and 36267 transitions. [2020-11-11 18:38:55,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-11-11 18:38:55,715 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:38:55,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:38:55,732 INFO L225 Difference]: With dead ends: 13491 [2020-11-11 18:38:55,732 INFO L226 Difference]: Without dead ends: 13401 [2020-11-11 18:38:55,732 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=854, Invalid=1902, Unknown=0, NotChecked=0, Total=2756 [2020-11-11 18:38:55,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13401 states. [2020-11-11 18:38:55,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13401 to 10301. [2020-11-11 18:38:55,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10301 states, 10299 states have (on average 2.71434119817458) internal successors, (27955), 10300 states have internal predecessors, (27955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:55,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10301 states to 10301 states and 27955 transitions. [2020-11-11 18:38:55,906 INFO L78 Accepts]: Start accepts. Automaton has 10301 states and 27955 transitions. Word has length 110 [2020-11-11 18:38:55,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:38:55,907 INFO L481 AbstractCegarLoop]: Abstraction has 10301 states and 27955 transitions. [2020-11-11 18:38:55,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:55,907 INFO L276 IsEmpty]: Start isEmpty. Operand 10301 states and 27955 transitions. [2020-11-11 18:38:55,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:38:55,918 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:38:55,918 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:38:55,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2020-11-11 18:38:55,918 INFO L429 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:38:55,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:38:55,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1790583311, now seen corresponding path program 49 times [2020-11-11 18:38:55,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:38:55,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803264529] [2020-11-11 18:38:55,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:38:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:38:56,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:38:56,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803264529] [2020-11-11 18:38:56,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:38:56,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:38:56,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901162736] [2020-11-11 18:38:56,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:38:56,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:38:56,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:38:56,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:38:56,880 INFO L87 Difference]: Start difference. First operand 10301 states and 27955 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:38:58,438 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:38:58,675 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:38:58,950 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:38:59,335 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:38:59,698 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-11-11 18:39:00,154 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2020-11-11 18:39:00,568 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2020-11-11 18:39:01,033 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2020-11-11 18:39:01,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:39:01,777 INFO L93 Difference]: Finished difference Result 18072 states and 48075 transitions. [2020-11-11 18:39:01,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:39:01,779 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:39:01,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:39:01,799 INFO L225 Difference]: With dead ends: 18072 [2020-11-11 18:39:01,800 INFO L226 Difference]: Without dead ends: 18072 [2020-11-11 18:39:01,800 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:39:01,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18072 states. [2020-11-11 18:39:01,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18072 to 10301. [2020-11-11 18:39:01,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10301 states, 10299 states have (on average 2.71434119817458) internal successors, (27955), 10300 states have internal predecessors, (27955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:02,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10301 states to 10301 states and 27955 transitions. [2020-11-11 18:39:02,008 INFO L78 Accepts]: Start accepts. Automaton has 10301 states and 27955 transitions. Word has length 110 [2020-11-11 18:39:02,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:39:02,009 INFO L481 AbstractCegarLoop]: Abstraction has 10301 states and 27955 transitions. [2020-11-11 18:39:02,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:02,009 INFO L276 IsEmpty]: Start isEmpty. Operand 10301 states and 27955 transitions. [2020-11-11 18:39:02,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:39:02,021 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:39:02,021 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:39:02,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2020-11-11 18:39:02,021 INFO L429 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:39:02,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:39:02,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1720922257, now seen corresponding path program 50 times [2020-11-11 18:39:02,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:39:02,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108809230] [2020-11-11 18:39:02,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:39:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:39:03,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:39:03,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108809230] [2020-11-11 18:39:03,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:39:03,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:39:03,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810422978] [2020-11-11 18:39:03,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:39:03,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:39:03,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:39:03,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:39:03,026 INFO L87 Difference]: Start difference. First operand 10301 states and 27955 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:04,657 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:39:04,894 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:39:05,170 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:39:05,553 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:39:05,919 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-11-11 18:39:06,381 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2020-11-11 18:39:06,835 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2020-11-11 18:39:07,302 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2020-11-11 18:39:08,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:39:08,084 INFO L93 Difference]: Finished difference Result 17682 states and 46701 transitions. [2020-11-11 18:39:08,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:39:08,085 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:39:08,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:39:08,104 INFO L225 Difference]: With dead ends: 17682 [2020-11-11 18:39:08,104 INFO L226 Difference]: Without dead ends: 17682 [2020-11-11 18:39:08,105 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:39:08,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17682 states. [2020-11-11 18:39:08,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17682 to 10197. [2020-11-11 18:39:08,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10197 states, 10195 states have (on average 2.712211868563021) internal successors, (27651), 10196 states have internal predecessors, (27651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:08,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10197 states to 10197 states and 27651 transitions. [2020-11-11 18:39:08,305 INFO L78 Accepts]: Start accepts. Automaton has 10197 states and 27651 transitions. Word has length 110 [2020-11-11 18:39:08,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:39:08,305 INFO L481 AbstractCegarLoop]: Abstraction has 10197 states and 27651 transitions. [2020-11-11 18:39:08,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:08,306 INFO L276 IsEmpty]: Start isEmpty. Operand 10197 states and 27651 transitions. [2020-11-11 18:39:08,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:39:08,317 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:39:08,317 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:39:08,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2020-11-11 18:39:08,317 INFO L429 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:39:08,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:39:08,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1346249745, now seen corresponding path program 51 times [2020-11-11 18:39:08,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:39:08,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440348795] [2020-11-11 18:39:08,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:39:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:39:09,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:39:09,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440348795] [2020-11-11 18:39:09,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:39:09,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:39:09,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136749385] [2020-11-11 18:39:09,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:39:09,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:39:09,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:39:09,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:39:09,177 INFO L87 Difference]: Start difference. First operand 10197 states and 27651 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:10,779 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:39:11,019 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:39:11,292 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:39:11,677 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:39:12,036 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-11-11 18:39:12,397 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2020-11-11 18:39:12,897 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2020-11-11 18:39:13,362 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2020-11-11 18:39:14,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:39:14,092 INFO L93 Difference]: Finished difference Result 16198 states and 42786 transitions. [2020-11-11 18:39:14,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:39:14,094 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:39:14,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:39:14,112 INFO L225 Difference]: With dead ends: 16198 [2020-11-11 18:39:14,112 INFO L226 Difference]: Without dead ends: 16198 [2020-11-11 18:39:14,112 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:39:14,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16198 states. [2020-11-11 18:39:14,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16198 to 8806. [2020-11-11 18:39:14,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8806 states, 8804 states have (on average 2.6987732848705135) internal successors, (23760), 8805 states have internal predecessors, (23760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:14,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8806 states to 8806 states and 23760 transitions. [2020-11-11 18:39:14,290 INFO L78 Accepts]: Start accepts. Automaton has 8806 states and 23760 transitions. Word has length 110 [2020-11-11 18:39:14,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:39:14,290 INFO L481 AbstractCegarLoop]: Abstraction has 8806 states and 23760 transitions. [2020-11-11 18:39:14,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:14,290 INFO L276 IsEmpty]: Start isEmpty. Operand 8806 states and 23760 transitions. [2020-11-11 18:39:14,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:39:14,298 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:39:14,298 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:39:14,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2020-11-11 18:39:14,299 INFO L429 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:39:14,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:39:14,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1083846271, now seen corresponding path program 11 times [2020-11-11 18:39:14,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:39:14,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389322852] [2020-11-11 18:39:14,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:39:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:39:15,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:39:15,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389322852] [2020-11-11 18:39:15,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:39:15,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:39:15,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790822898] [2020-11-11 18:39:15,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:39:15,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:39:15,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:39:15,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:39:15,061 INFO L87 Difference]: Start difference. First operand 8806 states and 23760 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:19,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:39:19,993 INFO L93 Difference]: Finished difference Result 13377 states and 35865 transitions. [2020-11-11 18:39:19,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-11-11 18:39:19,994 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:39:19,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:39:20,008 INFO L225 Difference]: With dead ends: 13377 [2020-11-11 18:39:20,008 INFO L226 Difference]: Without dead ends: 13295 [2020-11-11 18:39:20,008 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=982, Invalid=2098, Unknown=0, NotChecked=0, Total=3080 [2020-11-11 18:39:20,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13295 states. [2020-11-11 18:39:20,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13295 to 10223. [2020-11-11 18:39:20,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10223 states, 10221 states have (on average 2.712748263379317) internal successors, (27727), 10222 states have internal predecessors, (27727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:20,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10223 states to 10223 states and 27727 transitions. [2020-11-11 18:39:20,181 INFO L78 Accepts]: Start accepts. Automaton has 10223 states and 27727 transitions. Word has length 110 [2020-11-11 18:39:20,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:39:20,181 INFO L481 AbstractCegarLoop]: Abstraction has 10223 states and 27727 transitions. [2020-11-11 18:39:20,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:20,181 INFO L276 IsEmpty]: Start isEmpty. Operand 10223 states and 27727 transitions. [2020-11-11 18:39:20,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:39:20,191 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:39:20,192 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:39:20,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2020-11-11 18:39:20,192 INFO L429 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:39:20,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:39:20,192 INFO L82 PathProgramCache]: Analyzing trace with hash -566363403, now seen corresponding path program 52 times [2020-11-11 18:39:20,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:39:20,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737318788] [2020-11-11 18:39:20,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:39:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:39:21,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:39:21,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737318788] [2020-11-11 18:39:21,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:39:21,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:39:21,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7476216] [2020-11-11 18:39:21,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:39:21,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:39:21,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:39:21,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:39:21,037 INFO L87 Difference]: Start difference. First operand 10223 states and 27727 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:22,667 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:39:22,910 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:39:23,186 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:39:23,575 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:39:23,985 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-11-11 18:39:24,361 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2020-11-11 18:39:24,803 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-11-11 18:39:25,259 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2020-11-11 18:39:26,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:39:26,074 INFO L93 Difference]: Finished difference Result 18472 states and 48708 transitions. [2020-11-11 18:39:26,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:39:26,076 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:39:26,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:39:26,095 INFO L225 Difference]: With dead ends: 18472 [2020-11-11 18:39:26,095 INFO L226 Difference]: Without dead ends: 18472 [2020-11-11 18:39:26,095 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:39:26,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18472 states. [2020-11-11 18:39:26,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18472 to 10145. [2020-11-11 18:39:26,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10145 states, 10143 states have (on average 2.7111308291432517) internal successors, (27499), 10144 states have internal predecessors, (27499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:26,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10145 states to 10145 states and 27499 transitions. [2020-11-11 18:39:26,300 INFO L78 Accepts]: Start accepts. Automaton has 10145 states and 27499 transitions. Word has length 110 [2020-11-11 18:39:26,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:39:26,300 INFO L481 AbstractCegarLoop]: Abstraction has 10145 states and 27499 transitions. [2020-11-11 18:39:26,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:26,300 INFO L276 IsEmpty]: Start isEmpty. Operand 10145 states and 27499 transitions. [2020-11-11 18:39:26,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:39:26,310 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:39:26,310 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:39:26,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2020-11-11 18:39:26,310 INFO L429 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:39:26,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:39:26,311 INFO L82 PathProgramCache]: Analyzing trace with hash -636024457, now seen corresponding path program 53 times [2020-11-11 18:39:26,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:39:26,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298549445] [2020-11-11 18:39:26,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:39:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:39:27,307 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 16 [2020-11-11 18:39:27,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:39:27,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298549445] [2020-11-11 18:39:27,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:39:27,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:39:27,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783406061] [2020-11-11 18:39:27,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:39:27,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:39:27,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:39:27,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:39:27,392 INFO L87 Difference]: Start difference. First operand 10145 states and 27499 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:29,030 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:39:29,276 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:39:29,556 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:39:29,955 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:39:30,371 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-11-11 18:39:30,758 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2020-11-11 18:39:31,228 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2020-11-11 18:39:31,676 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 63 [2020-11-11 18:39:32,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:39:32,550 INFO L93 Difference]: Finished difference Result 19110 states and 50173 transitions. [2020-11-11 18:39:32,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:39:32,551 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:39:32,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:39:32,571 INFO L225 Difference]: With dead ends: 19110 [2020-11-11 18:39:32,571 INFO L226 Difference]: Without dead ends: 19110 [2020-11-11 18:39:32,571 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:39:32,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19110 states. [2020-11-11 18:39:32,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19110 to 10132. [2020-11-11 18:39:32,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10132 states, 10130 states have (on average 2.710858835143139) internal successors, (27461), 10131 states have internal predecessors, (27461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:32,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10132 states to 10132 states and 27461 transitions. [2020-11-11 18:39:32,880 INFO L78 Accepts]: Start accepts. Automaton has 10132 states and 27461 transitions. Word has length 110 [2020-11-11 18:39:32,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:39:32,880 INFO L481 AbstractCegarLoop]: Abstraction has 10132 states and 27461 transitions. [2020-11-11 18:39:32,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:32,880 INFO L276 IsEmpty]: Start isEmpty. Operand 10132 states and 27461 transitions. [2020-11-11 18:39:32,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:39:32,889 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:39:32,889 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:39:32,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2020-11-11 18:39:32,889 INFO L429 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:39:32,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:39:32,890 INFO L82 PathProgramCache]: Analyzing trace with hash 498091731, now seen corresponding path program 54 times [2020-11-11 18:39:32,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:39:32,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584831737] [2020-11-11 18:39:32,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:39:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:39:33,815 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:39:33,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:39:33,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584831737] [2020-11-11 18:39:33,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:39:33,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:39:33,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850503866] [2020-11-11 18:39:33,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:39:33,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:39:33,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:39:33,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:39:33,895 INFO L87 Difference]: Start difference. First operand 10132 states and 27461 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:35,538 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:39:35,784 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:39:36,060 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:39:36,470 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:39:36,892 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-11-11 18:39:37,325 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-11-11 18:39:37,800 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2020-11-11 18:39:38,154 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-11-11 18:39:38,623 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2020-11-11 18:39:39,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:39:39,443 INFO L93 Difference]: Finished difference Result 16898 states and 44393 transitions. [2020-11-11 18:39:39,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:39:39,445 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:39:39,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:39:39,462 INFO L225 Difference]: With dead ends: 16898 [2020-11-11 18:39:39,462 INFO L226 Difference]: Without dead ends: 16898 [2020-11-11 18:39:39,463 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=448, Invalid=1532, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:39:39,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16898 states. [2020-11-11 18:39:39,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16898 to 8780. [2020-11-11 18:39:39,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8780 states, 8778 states have (on average 2.6981089086352243) internal successors, (23684), 8779 states have internal predecessors, (23684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:39,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8780 states to 8780 states and 23684 transitions. [2020-11-11 18:39:39,637 INFO L78 Accepts]: Start accepts. Automaton has 8780 states and 23684 transitions. Word has length 110 [2020-11-11 18:39:39,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:39:39,637 INFO L481 AbstractCegarLoop]: Abstraction has 8780 states and 23684 transitions. [2020-11-11 18:39:39,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:39,638 INFO L276 IsEmpty]: Start isEmpty. Operand 8780 states and 23684 transitions. [2020-11-11 18:39:39,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:39:39,646 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:39:39,646 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:39:39,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2020-11-11 18:39:39,646 INFO L429 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:39:39,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:39:39,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1478711031, now seen corresponding path program 12 times [2020-11-11 18:39:39,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:39:39,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248938425] [2020-11-11 18:39:39,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:39:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:39:40,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:39:40,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248938425] [2020-11-11 18:39:40,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:39:40,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:39:40,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060049903] [2020-11-11 18:39:40,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:39:40,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:39:40,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:39:40,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:39:40,512 INFO L87 Difference]: Start difference. First operand 8780 states and 23684 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:46,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:39:46,069 INFO L93 Difference]: Finished difference Result 12781 states and 34174 transitions. [2020-11-11 18:39:46,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-11-11 18:39:46,071 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:39:46,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:39:46,086 INFO L225 Difference]: With dead ends: 12781 [2020-11-11 18:39:46,086 INFO L226 Difference]: Without dead ends: 12699 [2020-11-11 18:39:46,086 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1108, Invalid=2314, Unknown=0, NotChecked=0, Total=3422 [2020-11-11 18:39:46,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12699 states. [2020-11-11 18:39:46,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12699 to 10405. [2020-11-11 18:39:46,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10405 states, 10403 states have (on average 2.7164279534749594) internal successors, (28259), 10404 states have internal predecessors, (28259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:46,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10405 states to 10405 states and 28259 transitions. [2020-11-11 18:39:46,260 INFO L78 Accepts]: Start accepts. Automaton has 10405 states and 28259 transitions. Word has length 110 [2020-11-11 18:39:46,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:39:46,260 INFO L481 AbstractCegarLoop]: Abstraction has 10405 states and 28259 transitions. [2020-11-11 18:39:46,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:46,261 INFO L276 IsEmpty]: Start isEmpty. Operand 10405 states and 28259 transitions. [2020-11-11 18:39:46,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:39:46,271 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:39:46,271 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:39:46,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2020-11-11 18:39:46,271 INFO L429 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:39:46,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:39:46,271 INFO L82 PathProgramCache]: Analyzing trace with hash -171498643, now seen corresponding path program 55 times [2020-11-11 18:39:46,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:39:46,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514850602] [2020-11-11 18:39:46,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:39:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:39:47,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:39:47,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514850602] [2020-11-11 18:39:47,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:39:47,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:39:47,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845598211] [2020-11-11 18:39:47,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:39:47,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:39:47,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:39:47,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:39:47,135 INFO L87 Difference]: Start difference. First operand 10405 states and 28259 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:48,858 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:39:49,101 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:39:49,383 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:39:49,780 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:39:50,152 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:39:50,563 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-11 18:39:51,008 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:39:51,478 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2020-11-11 18:39:52,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:39:52,224 INFO L93 Difference]: Finished difference Result 14790 states and 39199 transitions. [2020-11-11 18:39:52,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:39:52,226 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:39:52,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:39:52,242 INFO L225 Difference]: With dead ends: 14790 [2020-11-11 18:39:52,242 INFO L226 Difference]: Without dead ends: 14790 [2020-11-11 18:39:52,242 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:39:52,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14790 states. [2020-11-11 18:39:52,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14790 to 10327. [2020-11-11 18:39:52,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10327 states, 10325 states have (on average 2.714866828087167) internal successors, (28031), 10326 states have internal predecessors, (28031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:52,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10327 states to 10327 states and 28031 transitions. [2020-11-11 18:39:52,422 INFO L78 Accepts]: Start accepts. Automaton has 10327 states and 28031 transitions. Word has length 110 [2020-11-11 18:39:52,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:39:52,422 INFO L481 AbstractCegarLoop]: Abstraction has 10327 states and 28031 transitions. [2020-11-11 18:39:52,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:52,422 INFO L276 IsEmpty]: Start isEmpty. Operand 10327 states and 28031 transitions. [2020-11-11 18:39:52,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:39:52,432 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:39:52,432 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:39:52,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2020-11-11 18:39:52,432 INFO L429 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:39:52,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:39:52,432 INFO L82 PathProgramCache]: Analyzing trace with hash -241159697, now seen corresponding path program 56 times [2020-11-11 18:39:52,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:39:52,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416872711] [2020-11-11 18:39:52,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:39:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:39:53,457 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 16 [2020-11-11 18:39:53,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:39:53,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416872711] [2020-11-11 18:39:53,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:39:53,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:39:53,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165249519] [2020-11-11 18:39:53,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:39:53,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:39:53,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:39:53,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:39:53,538 INFO L87 Difference]: Start difference. First operand 10327 states and 28031 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:55,223 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:39:55,471 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:39:55,756 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:39:56,165 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:39:56,549 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:39:56,962 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-11 18:39:57,460 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2020-11-11 18:39:57,928 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2020-11-11 18:39:58,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:39:58,716 INFO L93 Difference]: Finished difference Result 15428 states and 40664 transitions. [2020-11-11 18:39:58,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:39:58,718 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:39:58,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:39:58,735 INFO L225 Difference]: With dead ends: 15428 [2020-11-11 18:39:58,735 INFO L226 Difference]: Without dead ends: 15428 [2020-11-11 18:39:58,736 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:39:58,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15428 states. [2020-11-11 18:39:58,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15428 to 10314. [2020-11-11 18:39:58,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10314 states, 10312 states have (on average 2.7146043444530643) internal successors, (27993), 10313 states have internal predecessors, (27993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:58,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10314 states to 10314 states and 27993 transitions. [2020-11-11 18:39:58,926 INFO L78 Accepts]: Start accepts. Automaton has 10314 states and 27993 transitions. Word has length 110 [2020-11-11 18:39:58,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:39:58,926 INFO L481 AbstractCegarLoop]: Abstraction has 10314 states and 27993 transitions. [2020-11-11 18:39:58,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:39:58,926 INFO L276 IsEmpty]: Start isEmpty. Operand 10314 states and 27993 transitions. [2020-11-11 18:39:58,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:39:58,937 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:39:58,937 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:39:58,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2020-11-11 18:39:58,937 INFO L429 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:39:58,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:39:58,937 INFO L82 PathProgramCache]: Analyzing trace with hash 892956491, now seen corresponding path program 57 times [2020-11-11 18:39:58,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:39:58,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474691679] [2020-11-11 18:39:58,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:39:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:39:59,867 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:39:59,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:39:59,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474691679] [2020-11-11 18:39:59,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:39:59,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:39:59,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535358798] [2020-11-11 18:39:59,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:39:59,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:39:59,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:39:59,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:39:59,947 INFO L87 Difference]: Start difference. First operand 10314 states and 27993 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:01,636 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:40:01,893 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:40:02,185 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:40:02,602 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:40:03,036 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:40:03,457 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:40:03,916 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2020-11-11 18:40:04,286 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-11-11 18:40:04,776 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2020-11-11 18:40:05,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:40:05,624 INFO L93 Difference]: Finished difference Result 16387 states and 43022 transitions. [2020-11-11 18:40:05,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:40:05,626 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:40:05,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:40:05,644 INFO L225 Difference]: With dead ends: 16387 [2020-11-11 18:40:05,644 INFO L226 Difference]: Without dead ends: 16387 [2020-11-11 18:40:05,644 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=448, Invalid=1532, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:40:05,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16387 states. [2020-11-11 18:40:05,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16387 to 10301. [2020-11-11 18:40:05,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10301 states, 10299 states have (on average 2.71434119817458) internal successors, (27955), 10300 states have internal predecessors, (27955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:05,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10301 states to 10301 states and 27955 transitions. [2020-11-11 18:40:05,844 INFO L78 Accepts]: Start accepts. Automaton has 10301 states and 27955 transitions. Word has length 110 [2020-11-11 18:40:05,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:40:05,845 INFO L481 AbstractCegarLoop]: Abstraction has 10301 states and 27955 transitions. [2020-11-11 18:40:05,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:05,845 INFO L276 IsEmpty]: Start isEmpty. Operand 10301 states and 27955 transitions. [2020-11-11 18:40:05,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:40:05,855 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:40:05,855 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:40:05,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2020-11-11 18:40:05,855 INFO L429 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:40:05,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:40:05,856 INFO L82 PathProgramCache]: Analyzing trace with hash 713479569, now seen corresponding path program 58 times [2020-11-11 18:40:05,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:40:05,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298382936] [2020-11-11 18:40:05,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:40:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:40:06,861 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:40:06,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:40:06,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298382936] [2020-11-11 18:40:06,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:40:06,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:40:06,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535996609] [2020-11-11 18:40:06,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:40:06,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:40:06,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:40:06,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:40:06,941 INFO L87 Difference]: Start difference. First operand 10301 states and 27955 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:08,674 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:40:08,942 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:40:09,226 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:40:09,656 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:40:10,025 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-11-11 18:40:10,403 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2020-11-11 18:40:10,825 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-11-11 18:40:11,327 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2020-11-11 18:40:11,708 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-11-11 18:40:12,208 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2020-11-11 18:40:12,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:40:12,997 INFO L93 Difference]: Finished difference Result 13203 states and 34846 transitions. [2020-11-11 18:40:12,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-11 18:40:12,998 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:40:12,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:40:13,012 INFO L225 Difference]: With dead ends: 13203 [2020-11-11 18:40:13,013 INFO L226 Difference]: Without dead ends: 13203 [2020-11-11 18:40:13,013 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=477, Invalid=1593, Unknown=0, NotChecked=0, Total=2070 [2020-11-11 18:40:13,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13203 states. [2020-11-11 18:40:13,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13203 to 8728. [2020-11-11 18:40:13,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8728 states, 8726 states have (on average 2.6967682787073115) internal successors, (23532), 8727 states have internal predecessors, (23532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:13,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8728 states to 8728 states and 23532 transitions. [2020-11-11 18:40:13,179 INFO L78 Accepts]: Start accepts. Automaton has 8728 states and 23532 transitions. Word has length 110 [2020-11-11 18:40:13,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:40:13,179 INFO L481 AbstractCegarLoop]: Abstraction has 8728 states and 23532 transitions. [2020-11-11 18:40:13,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:13,179 INFO L276 IsEmpty]: Start isEmpty. Operand 8728 states and 23532 transitions. [2020-11-11 18:40:13,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:40:13,187 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:40:13,187 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:40:13,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2020-11-11 18:40:13,187 INFO L429 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:40:13,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:40:13,188 INFO L82 PathProgramCache]: Analyzing trace with hash 699958139, now seen corresponding path program 13 times [2020-11-11 18:40:13,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:40:13,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061341959] [2020-11-11 18:40:13,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:40:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:40:14,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:40:14,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061341959] [2020-11-11 18:40:14,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:40:14,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:40:14,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438255565] [2020-11-11 18:40:14,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:40:14,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:40:14,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:40:14,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:40:14,021 INFO L87 Difference]: Start difference. First operand 8728 states and 23532 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:19,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:40:19,074 INFO L93 Difference]: Finished difference Result 13803 states and 37179 transitions. [2020-11-11 18:40:19,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-11-11 18:40:19,076 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:40:19,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:40:19,089 INFO L225 Difference]: With dead ends: 13803 [2020-11-11 18:40:19,090 INFO L226 Difference]: Without dead ends: 13713 [2020-11-11 18:40:19,090 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=818, Invalid=1834, Unknown=0, NotChecked=0, Total=2652 [2020-11-11 18:40:19,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13713 states. [2020-11-11 18:40:19,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13713 to 10327. [2020-11-11 18:40:19,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10327 states, 10325 states have (on average 2.714866828087167) internal successors, (28031), 10326 states have internal predecessors, (28031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:19,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10327 states to 10327 states and 28031 transitions. [2020-11-11 18:40:19,263 INFO L78 Accepts]: Start accepts. Automaton has 10327 states and 28031 transitions. Word has length 110 [2020-11-11 18:40:19,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:40:19,263 INFO L481 AbstractCegarLoop]: Abstraction has 10327 states and 28031 transitions. [2020-11-11 18:40:19,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:19,263 INFO L276 IsEmpty]: Start isEmpty. Operand 10327 states and 28031 transitions. [2020-11-11 18:40:19,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:40:19,273 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:40:19,274 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:40:19,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2020-11-11 18:40:19,274 INFO L429 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:40:19,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:40:19,274 INFO L82 PathProgramCache]: Analyzing trace with hash -950251535, now seen corresponding path program 59 times [2020-11-11 18:40:19,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:40:19,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319206597] [2020-11-11 18:40:19,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:40:19,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:40:20,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:40:20,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319206597] [2020-11-11 18:40:20,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:40:20,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:40:20,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547398662] [2020-11-11 18:40:20,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:40:20,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:40:20,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:40:20,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:40:20,232 INFO L87 Difference]: Start difference. First operand 10327 states and 28031 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:21,960 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:40:22,225 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:40:22,497 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:40:22,911 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:40:23,285 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-11-11 18:40:23,760 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2020-11-11 18:40:24,203 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2020-11-11 18:40:24,707 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2020-11-11 18:40:25,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:40:25,514 INFO L93 Difference]: Finished difference Result 18594 states and 49548 transitions. [2020-11-11 18:40:25,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:40:25,515 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:40:25,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:40:25,535 INFO L225 Difference]: With dead ends: 18594 [2020-11-11 18:40:25,535 INFO L226 Difference]: Without dead ends: 18594 [2020-11-11 18:40:25,535 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:40:25,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18594 states. [2020-11-11 18:40:25,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18594 to 10327. [2020-11-11 18:40:25,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10327 states, 10325 states have (on average 2.714866828087167) internal successors, (28031), 10326 states have internal predecessors, (28031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:25,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10327 states to 10327 states and 28031 transitions. [2020-11-11 18:40:25,743 INFO L78 Accepts]: Start accepts. Automaton has 10327 states and 28031 transitions. Word has length 110 [2020-11-11 18:40:25,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:40:25,743 INFO L481 AbstractCegarLoop]: Abstraction has 10327 states and 28031 transitions. [2020-11-11 18:40:25,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:25,743 INFO L276 IsEmpty]: Start isEmpty. Operand 10327 states and 28031 transitions. [2020-11-11 18:40:25,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:40:25,754 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:40:25,754 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:40:25,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2020-11-11 18:40:25,754 INFO L429 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:40:25,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:40:25,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1019912589, now seen corresponding path program 60 times [2020-11-11 18:40:25,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:40:25,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094438096] [2020-11-11 18:40:25,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:40:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:40:26,764 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 16 [2020-11-11 18:40:26,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:40:26,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094438096] [2020-11-11 18:40:26,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:40:26,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:40:26,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805213132] [2020-11-11 18:40:26,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:40:26,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:40:26,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:40:26,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:40:26,847 INFO L87 Difference]: Start difference. First operand 10327 states and 28031 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:28,596 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:40:28,864 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:40:29,148 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:40:29,567 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:40:29,953 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-11-11 18:40:30,438 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2020-11-11 18:40:30,925 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2020-11-11 18:40:31,419 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2020-11-11 18:40:32,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:40:32,303 INFO L93 Difference]: Finished difference Result 18204 states and 48174 transitions. [2020-11-11 18:40:32,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:40:32,305 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:40:32,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:40:32,324 INFO L225 Difference]: With dead ends: 18204 [2020-11-11 18:40:32,324 INFO L226 Difference]: Without dead ends: 18204 [2020-11-11 18:40:32,325 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:40:32,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18204 states. [2020-11-11 18:40:32,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18204 to 10223. [2020-11-11 18:40:32,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10223 states, 10221 states have (on average 2.712748263379317) internal successors, (27727), 10222 states have internal predecessors, (27727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:32,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10223 states to 10223 states and 27727 transitions. [2020-11-11 18:40:32,527 INFO L78 Accepts]: Start accepts. Automaton has 10223 states and 27727 transitions. Word has length 110 [2020-11-11 18:40:32,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:40:32,527 INFO L481 AbstractCegarLoop]: Abstraction has 10223 states and 27727 transitions. [2020-11-11 18:40:32,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:32,527 INFO L276 IsEmpty]: Start isEmpty. Operand 10223 states and 27727 transitions. [2020-11-11 18:40:32,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:40:32,619 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:40:32,619 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:40:32,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2020-11-11 18:40:32,620 INFO L429 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:40:32,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:40:32,620 INFO L82 PathProgramCache]: Analyzing trace with hash 207882705, now seen corresponding path program 61 times [2020-11-11 18:40:32,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:40:32,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381356698] [2020-11-11 18:40:32,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:40:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:40:33,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:40:33,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381356698] [2020-11-11 18:40:33,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:40:33,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:40:33,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457610552] [2020-11-11 18:40:33,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:40:33,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:40:33,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:40:33,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:40:33,536 INFO L87 Difference]: Start difference. First operand 10223 states and 27727 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:35,291 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:40:35,561 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:40:35,837 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:40:36,246 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:40:36,626 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-11-11 18:40:37,008 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2020-11-11 18:40:37,541 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2020-11-11 18:40:38,036 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2020-11-11 18:40:38,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:40:38,840 INFO L93 Difference]: Finished difference Result 16720 states and 44259 transitions. [2020-11-11 18:40:38,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:40:38,842 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:40:38,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:40:38,860 INFO L225 Difference]: With dead ends: 16720 [2020-11-11 18:40:38,861 INFO L226 Difference]: Without dead ends: 16720 [2020-11-11 18:40:38,861 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:40:38,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16720 states. [2020-11-11 18:40:39,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16720 to 8832. [2020-11-11 18:40:39,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8832 states, 8830 states have (on average 2.6994337485843714) internal successors, (23836), 8831 states have internal predecessors, (23836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:39,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8832 states to 8832 states and 23836 transitions. [2020-11-11 18:40:39,042 INFO L78 Accepts]: Start accepts. Automaton has 8832 states and 23836 transitions. Word has length 110 [2020-11-11 18:40:39,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:40:39,042 INFO L481 AbstractCegarLoop]: Abstraction has 8832 states and 23836 transitions. [2020-11-11 18:40:39,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:39,043 INFO L276 IsEmpty]: Start isEmpty. Operand 8832 states and 23836 transitions. [2020-11-11 18:40:39,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:40:39,050 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:40:39,051 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:40:39,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2020-11-11 18:40:39,051 INFO L429 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:40:39,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:40:39,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1656988575, now seen corresponding path program 14 times [2020-11-11 18:40:39,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:40:39,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082082635] [2020-11-11 18:40:39,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:40:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:40:39,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:40:39,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082082635] [2020-11-11 18:40:39,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:40:39,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:40:39,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431913890] [2020-11-11 18:40:39,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:40:39,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:40:39,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:40:39,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:40:39,874 INFO L87 Difference]: Start difference. First operand 8832 states and 23836 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:45,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:40:45,070 INFO L93 Difference]: Finished difference Result 13689 states and 36777 transitions. [2020-11-11 18:40:45,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-11-11 18:40:45,071 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:40:45,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:40:45,087 INFO L225 Difference]: With dead ends: 13689 [2020-11-11 18:40:45,087 INFO L226 Difference]: Without dead ends: 13607 [2020-11-11 18:40:45,088 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=945, Invalid=2025, Unknown=0, NotChecked=0, Total=2970 [2020-11-11 18:40:45,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13607 states. [2020-11-11 18:40:45,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13607 to 10249. [2020-11-11 18:40:45,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10249 states, 10247 states have (on average 2.713281936176442) internal successors, (27803), 10248 states have internal predecessors, (27803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:45,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10249 states to 10249 states and 27803 transitions. [2020-11-11 18:40:45,267 INFO L78 Accepts]: Start accepts. Automaton has 10249 states and 27803 transitions. Word has length 110 [2020-11-11 18:40:45,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:40:45,268 INFO L481 AbstractCegarLoop]: Abstraction has 10249 states and 27803 transitions. [2020-11-11 18:40:45,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:45,268 INFO L276 IsEmpty]: Start isEmpty. Operand 10249 states and 27803 transitions. [2020-11-11 18:40:45,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:40:45,278 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:40:45,278 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:40:45,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2020-11-11 18:40:45,278 INFO L429 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:40:45,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:40:45,278 INFO L82 PathProgramCache]: Analyzing trace with hash 987769047, now seen corresponding path program 62 times [2020-11-11 18:40:45,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:40:45,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628379622] [2020-11-11 18:40:45,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:40:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:40:46,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:40:46,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628379622] [2020-11-11 18:40:46,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:40:46,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:40:46,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096210082] [2020-11-11 18:40:46,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:40:46,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:40:46,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:40:46,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:40:46,209 INFO L87 Difference]: Start difference. First operand 10249 states and 27803 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:47,986 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:40:48,302 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:40:48,585 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:40:49,012 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:40:49,442 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-11-11 18:40:49,843 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2020-11-11 18:40:50,311 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-11-11 18:40:50,795 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2020-11-11 18:40:51,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:40:51,675 INFO L93 Difference]: Finished difference Result 18994 states and 50181 transitions. [2020-11-11 18:40:51,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:40:51,677 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:40:51,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:40:51,697 INFO L225 Difference]: With dead ends: 18994 [2020-11-11 18:40:51,697 INFO L226 Difference]: Without dead ends: 18994 [2020-11-11 18:40:51,698 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:40:51,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18994 states. [2020-11-11 18:40:51,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18994 to 10171. [2020-11-11 18:40:51,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10171 states, 10169 states have (on average 2.7116727308486577) internal successors, (27575), 10170 states have internal predecessors, (27575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:51,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10171 states to 10171 states and 27575 transitions. [2020-11-11 18:40:51,910 INFO L78 Accepts]: Start accepts. Automaton has 10171 states and 27575 transitions. Word has length 110 [2020-11-11 18:40:51,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:40:51,910 INFO L481 AbstractCegarLoop]: Abstraction has 10171 states and 27575 transitions. [2020-11-11 18:40:51,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:51,910 INFO L276 IsEmpty]: Start isEmpty. Operand 10171 states and 27575 transitions. [2020-11-11 18:40:51,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:40:51,920 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:40:51,920 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:40:51,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2020-11-11 18:40:51,920 INFO L429 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:40:51,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:40:51,921 INFO L82 PathProgramCache]: Analyzing trace with hash 918107993, now seen corresponding path program 63 times [2020-11-11 18:40:51,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:40:51,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727299028] [2020-11-11 18:40:51,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:40:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:40:52,871 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 16 [2020-11-11 18:40:52,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:40:52,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727299028] [2020-11-11 18:40:52,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:40:52,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:40:52,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290458632] [2020-11-11 18:40:52,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:40:52,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:40:52,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:40:52,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:40:52,954 INFO L87 Difference]: Start difference. First operand 10171 states and 27575 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:54,755 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:40:55,030 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:40:55,313 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:40:55,752 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:40:56,203 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-11-11 18:40:56,623 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2020-11-11 18:40:57,132 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2020-11-11 18:40:57,609 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 63 [2020-11-11 18:40:58,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:40:58,550 INFO L93 Difference]: Finished difference Result 19632 states and 51646 transitions. [2020-11-11 18:40:58,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:40:58,552 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:40:58,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:40:58,572 INFO L225 Difference]: With dead ends: 19632 [2020-11-11 18:40:58,572 INFO L226 Difference]: Without dead ends: 19632 [2020-11-11 18:40:58,573 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:40:58,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19632 states. [2020-11-11 18:40:58,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19632 to 10158. [2020-11-11 18:40:58,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10158 states, 10156 states have (on average 2.711402126821583) internal successors, (27537), 10157 states have internal predecessors, (27537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:58,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10158 states to 10158 states and 27537 transitions. [2020-11-11 18:40:58,783 INFO L78 Accepts]: Start accepts. Automaton has 10158 states and 27537 transitions. Word has length 110 [2020-11-11 18:40:58,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:40:58,783 INFO L481 AbstractCegarLoop]: Abstraction has 10158 states and 27537 transitions. [2020-11-11 18:40:58,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:40:58,783 INFO L276 IsEmpty]: Start isEmpty. Operand 10158 states and 27537 transitions. [2020-11-11 18:40:58,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:40:58,793 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:40:58,793 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:40:58,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2020-11-11 18:40:58,793 INFO L429 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:40:58,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:40:58,794 INFO L82 PathProgramCache]: Analyzing trace with hash 2052224181, now seen corresponding path program 64 times [2020-11-11 18:40:58,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:40:58,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25791396] [2020-11-11 18:40:58,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:40:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:40:59,814 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:40:59,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:40:59,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25791396] [2020-11-11 18:40:59,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:40:59,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:40:59,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721678422] [2020-11-11 18:40:59,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:40:59,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:40:59,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:40:59,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:40:59,901 INFO L87 Difference]: Start difference. First operand 10158 states and 27537 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:01,735 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:41:02,016 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:41:02,296 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:41:02,743 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-11 18:41:03,191 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-11-11 18:41:03,647 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-11-11 18:41:04,196 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2020-11-11 18:41:04,574 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-11-11 18:41:05,074 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2020-11-11 18:41:05,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:41:05,970 INFO L93 Difference]: Finished difference Result 17420 states and 45866 transitions. [2020-11-11 18:41:05,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:41:05,972 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:41:05,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:41:05,990 INFO L225 Difference]: With dead ends: 17420 [2020-11-11 18:41:05,990 INFO L226 Difference]: Without dead ends: 17420 [2020-11-11 18:41:05,990 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=448, Invalid=1532, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:41:06,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17420 states. [2020-11-11 18:41:06,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17420 to 8806. [2020-11-11 18:41:06,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8806 states, 8804 states have (on average 2.6987732848705135) internal successors, (23760), 8805 states have internal predecessors, (23760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:06,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8806 states to 8806 states and 23760 transitions. [2020-11-11 18:41:06,172 INFO L78 Accepts]: Start accepts. Automaton has 8806 states and 23760 transitions. Word has length 110 [2020-11-11 18:41:06,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:41:06,172 INFO L481 AbstractCegarLoop]: Abstraction has 8806 states and 23760 transitions. [2020-11-11 18:41:06,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:06,172 INFO L276 IsEmpty]: Start isEmpty. Operand 8806 states and 23760 transitions. [2020-11-11 18:41:06,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:41:06,181 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:41:06,181 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:41:06,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2020-11-11 18:41:06,181 INFO L429 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:41:06,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:41:06,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1262123815, now seen corresponding path program 15 times [2020-11-11 18:41:06,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:41:06,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601688978] [2020-11-11 18:41:06,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:41:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:41:07,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:41:07,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601688978] [2020-11-11 18:41:07,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:41:07,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:41:07,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026409076] [2020-11-11 18:41:07,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:41:07,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:41:07,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:41:07,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:41:07,005 INFO L87 Difference]: Start difference. First operand 8806 states and 23760 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:13,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:41:13,116 INFO L93 Difference]: Finished difference Result 14133 states and 38022 transitions. [2020-11-11 18:41:13,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-11-11 18:41:13,117 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:41:13,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:41:13,134 INFO L225 Difference]: With dead ends: 14133 [2020-11-11 18:41:13,134 INFO L226 Difference]: Without dead ends: 14051 [2020-11-11 18:41:13,135 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1070, Invalid=2236, Unknown=0, NotChecked=0, Total=3306 [2020-11-11 18:41:13,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14051 states. [2020-11-11 18:41:13,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14051 to 10431. [2020-11-11 18:41:13,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10431 states, 10429 states have (on average 2.7169431393230417) internal successors, (28335), 10430 states have internal predecessors, (28335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:13,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10431 states to 10431 states and 28335 transitions. [2020-11-11 18:41:13,316 INFO L78 Accepts]: Start accepts. Automaton has 10431 states and 28335 transitions. Word has length 110 [2020-11-11 18:41:13,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:41:13,317 INFO L481 AbstractCegarLoop]: Abstraction has 10431 states and 28335 transitions. [2020-11-11 18:41:13,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:13,317 INFO L276 IsEmpty]: Start isEmpty. Operand 10431 states and 28335 transitions. [2020-11-11 18:41:13,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:41:13,327 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:41:13,327 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:41:13,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2020-11-11 18:41:13,327 INFO L429 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:41:13,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:41:13,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1382633807, now seen corresponding path program 65 times [2020-11-11 18:41:13,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:41:13,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266447530] [2020-11-11 18:41:13,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:41:13,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:41:14,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:41:14,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266447530] [2020-11-11 18:41:14,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:41:14,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:41:14,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832246491] [2020-11-11 18:41:14,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:41:14,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:41:14,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:41:14,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:41:14,287 INFO L87 Difference]: Start difference. First operand 10431 states and 28335 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:16,120 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:41:16,399 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:41:16,687 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:41:17,123 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:41:17,538 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:41:17,972 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-11 18:41:18,473 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:41:18,985 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2020-11-11 18:41:19,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:41:19,895 INFO L93 Difference]: Finished difference Result 19438 states and 51426 transitions. [2020-11-11 18:41:19,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:41:19,897 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:41:19,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:41:19,919 INFO L225 Difference]: With dead ends: 19438 [2020-11-11 18:41:19,919 INFO L226 Difference]: Without dead ends: 19438 [2020-11-11 18:41:19,919 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:41:19,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19438 states. [2020-11-11 18:41:20,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19438 to 10353. [2020-11-11 18:41:20,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10353 states, 10351 states have (on average 2.715389817408946) internal successors, (28107), 10352 states have internal predecessors, (28107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:20,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10353 states to 10353 states and 28107 transitions. [2020-11-11 18:41:20,192 INFO L78 Accepts]: Start accepts. Automaton has 10353 states and 28107 transitions. Word has length 110 [2020-11-11 18:41:20,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:41:20,192 INFO L481 AbstractCegarLoop]: Abstraction has 10353 states and 28107 transitions. [2020-11-11 18:41:20,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:20,193 INFO L276 IsEmpty]: Start isEmpty. Operand 10353 states and 28107 transitions. [2020-11-11 18:41:20,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:41:20,204 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:41:20,204 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:41:20,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2020-11-11 18:41:20,205 INFO L429 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:41:20,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:41:20,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1312972753, now seen corresponding path program 66 times [2020-11-11 18:41:20,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:41:20,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819056666] [2020-11-11 18:41:20,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:41:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:41:21,277 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 16 [2020-11-11 18:41:21,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:41:21,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819056666] [2020-11-11 18:41:21,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:41:21,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:41:21,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235783900] [2020-11-11 18:41:21,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:41:21,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:41:21,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:41:21,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:41:21,363 INFO L87 Difference]: Start difference. First operand 10353 states and 28107 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:23,222 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:41:23,499 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:41:23,785 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:41:24,230 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:41:24,661 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:41:25,099 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-11 18:41:25,624 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2020-11-11 18:41:26,118 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2020-11-11 18:41:27,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:41:27,094 INFO L93 Difference]: Finished difference Result 20076 states and 52891 transitions. [2020-11-11 18:41:27,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:41:27,096 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:41:27,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:41:27,116 INFO L225 Difference]: With dead ends: 20076 [2020-11-11 18:41:27,116 INFO L226 Difference]: Without dead ends: 20076 [2020-11-11 18:41:27,117 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:41:27,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20076 states. [2020-11-11 18:41:27,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20076 to 10340. [2020-11-11 18:41:27,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10340 states, 10338 states have (on average 2.7151286515767072) internal successors, (28069), 10339 states have internal predecessors, (28069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:27,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10340 states to 10340 states and 28069 transitions. [2020-11-11 18:41:27,330 INFO L78 Accepts]: Start accepts. Automaton has 10340 states and 28069 transitions. Word has length 110 [2020-11-11 18:41:27,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:41:27,331 INFO L481 AbstractCegarLoop]: Abstraction has 10340 states and 28069 transitions. [2020-11-11 18:41:27,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:27,331 INFO L276 IsEmpty]: Start isEmpty. Operand 10340 states and 28069 transitions. [2020-11-11 18:41:27,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:41:27,341 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:41:27,341 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:41:27,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2020-11-11 18:41:27,341 INFO L429 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:41:27,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:41:27,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1847878355, now seen corresponding path program 67 times [2020-11-11 18:41:27,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:41:27,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769347657] [2020-11-11 18:41:27,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:41:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:41:28,353 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:41:28,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:41:28,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769347657] [2020-11-11 18:41:28,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:41:28,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:41:28,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060004790] [2020-11-11 18:41:28,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:41:28,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:41:28,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:41:28,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:41:28,447 INFO L87 Difference]: Start difference. First operand 10340 states and 28069 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:30,353 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:41:30,638 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:41:30,928 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:41:31,391 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:41:31,820 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:41:32,274 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:41:32,760 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2020-11-11 18:41:33,153 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-11-11 18:41:33,661 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2020-11-11 18:41:34,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:41:34,705 INFO L93 Difference]: Finished difference Result 21035 states and 55249 transitions. [2020-11-11 18:41:34,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:41:34,706 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:41:34,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:41:34,728 INFO L225 Difference]: With dead ends: 21035 [2020-11-11 18:41:34,728 INFO L226 Difference]: Without dead ends: 21035 [2020-11-11 18:41:34,729 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=448, Invalid=1532, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:41:34,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21035 states. [2020-11-11 18:41:34,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21035 to 10327. [2020-11-11 18:41:34,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10327 states, 10325 states have (on average 2.714866828087167) internal successors, (28031), 10326 states have internal predecessors, (28031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:34,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10327 states to 10327 states and 28031 transitions. [2020-11-11 18:41:34,946 INFO L78 Accepts]: Start accepts. Automaton has 10327 states and 28031 transitions. Word has length 110 [2020-11-11 18:41:34,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:41:34,946 INFO L481 AbstractCegarLoop]: Abstraction has 10327 states and 28031 transitions. [2020-11-11 18:41:34,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:34,946 INFO L276 IsEmpty]: Start isEmpty. Operand 10327 states and 28031 transitions. [2020-11-11 18:41:34,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:41:34,958 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:41:34,958 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:41:34,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2020-11-11 18:41:34,959 INFO L429 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:41:34,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:41:34,959 INFO L82 PathProgramCache]: Analyzing trace with hash -2027355277, now seen corresponding path program 68 times [2020-11-11 18:41:34,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:41:34,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032657918] [2020-11-11 18:41:34,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:41:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:41:36,071 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:41:36,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:41:36,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032657918] [2020-11-11 18:41:36,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:41:36,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:41:36,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495813612] [2020-11-11 18:41:36,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:41:36,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:41:36,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:41:36,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:41:36,159 INFO L87 Difference]: Start difference. First operand 10327 states and 28031 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:37,842 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:41:38,050 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:41:38,344 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:41:38,633 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-11 18:41:39,098 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:41:39,488 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-11-11 18:41:39,895 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2020-11-11 18:41:40,354 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-11-11 18:41:40,890 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2020-11-11 18:41:41,294 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-11-11 18:41:41,842 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2020-11-11 18:41:42,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:41:42,846 INFO L93 Difference]: Finished difference Result 17851 states and 47073 transitions. [2020-11-11 18:41:42,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-11 18:41:42,847 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:41:42,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:41:42,867 INFO L225 Difference]: With dead ends: 17851 [2020-11-11 18:41:42,867 INFO L226 Difference]: Without dead ends: 17851 [2020-11-11 18:41:42,867 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=477, Invalid=1593, Unknown=0, NotChecked=0, Total=2070 [2020-11-11 18:41:42,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17851 states. [2020-11-11 18:41:43,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17851 to 8754. [2020-11-11 18:41:43,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8754 states, 8752 states have (on average 2.697440585009141) internal successors, (23608), 8753 states have internal predecessors, (23608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:43,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8754 states to 8754 states and 23608 transitions. [2020-11-11 18:41:43,047 INFO L78 Accepts]: Start accepts. Automaton has 8754 states and 23608 transitions. Word has length 110 [2020-11-11 18:41:43,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:41:43,047 INFO L481 AbstractCegarLoop]: Abstraction has 8754 states and 23608 transitions. [2020-11-11 18:41:43,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:43,048 INFO L276 IsEmpty]: Start isEmpty. Operand 8754 states and 23608 transitions. [2020-11-11 18:41:43,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:41:43,056 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:41:43,056 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:41:43,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2020-11-11 18:41:43,056 INFO L429 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:41:43,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:41:43,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1690079433, now seen corresponding path program 16 times [2020-11-11 18:41:43,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:41:43,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886434363] [2020-11-11 18:41:43,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:41:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:41:43,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:41:43,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886434363] [2020-11-11 18:41:43,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:41:43,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:41:43,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116442773] [2020-11-11 18:41:43,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:41:43,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:41:43,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:41:43,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:41:43,929 INFO L87 Difference]: Start difference. First operand 8754 states and 23608 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:50,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:41:50,808 INFO L93 Difference]: Finished difference Result 13251 states and 35495 transitions. [2020-11-11 18:41:50,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-11-11 18:41:50,810 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:41:50,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:41:50,824 INFO L225 Difference]: With dead ends: 13251 [2020-11-11 18:41:50,825 INFO L226 Difference]: Without dead ends: 13169 [2020-11-11 18:41:50,825 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1193, Invalid=2467, Unknown=0, NotChecked=0, Total=3660 [2020-11-11 18:41:50,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13169 states. [2020-11-11 18:41:50,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13169 to 10483. [2020-11-11 18:41:50,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10483 states, 10481 states have (on average 2.7179658429539164) internal successors, (28487), 10482 states have internal predecessors, (28487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:51,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10483 states to 10483 states and 28487 transitions. [2020-11-11 18:41:51,006 INFO L78 Accepts]: Start accepts. Automaton has 10483 states and 28487 transitions. Word has length 110 [2020-11-11 18:41:51,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:41:51,006 INFO L481 AbstractCegarLoop]: Abstraction has 10483 states and 28487 transitions. [2020-11-11 18:41:51,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:51,006 INFO L276 IsEmpty]: Start isEmpty. Operand 10483 states and 28487 transitions. [2020-11-11 18:41:51,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:41:51,016 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:41:51,016 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:41:51,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2020-11-11 18:41:51,017 INFO L429 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:41:51,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:41:51,017 INFO L82 PathProgramCache]: Analyzing trace with hash 954678189, now seen corresponding path program 69 times [2020-11-11 18:41:51,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:41:51,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365803364] [2020-11-11 18:41:51,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:41:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:41:52,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:41:52,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365803364] [2020-11-11 18:41:52,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:41:52,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:41:52,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929860365] [2020-11-11 18:41:52,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:41:52,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:41:52,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:41:52,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:41:52,093 INFO L87 Difference]: Start difference. First operand 10483 states and 28487 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:53,830 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:41:54,050 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:41:54,337 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:41:54,717 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-11-11 18:41:55,060 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:41:55,504 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:41:55,955 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-11 18:41:56,458 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:41:56,987 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2020-11-11 18:41:57,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:41:57,839 INFO L93 Difference]: Finished difference Result 15260 states and 40520 transitions. [2020-11-11 18:41:57,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:41:57,840 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:41:57,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:41:57,857 INFO L225 Difference]: With dead ends: 15260 [2020-11-11 18:41:57,857 INFO L226 Difference]: Without dead ends: 15260 [2020-11-11 18:41:57,857 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:41:57,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15260 states. [2020-11-11 18:41:58,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15260 to 10405. [2020-11-11 18:41:58,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10405 states, 10403 states have (on average 2.7164279534749594) internal successors, (28259), 10404 states have internal predecessors, (28259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:58,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10405 states to 10405 states and 28259 transitions. [2020-11-11 18:41:58,062 INFO L78 Accepts]: Start accepts. Automaton has 10405 states and 28259 transitions. Word has length 110 [2020-11-11 18:41:58,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:41:58,063 INFO L481 AbstractCegarLoop]: Abstraction has 10405 states and 28259 transitions. [2020-11-11 18:41:58,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:41:58,063 INFO L276 IsEmpty]: Start isEmpty. Operand 10405 states and 28259 transitions. [2020-11-11 18:41:58,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:41:58,073 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:41:58,073 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:41:58,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2020-11-11 18:41:58,073 INFO L429 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:41:58,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:41:58,074 INFO L82 PathProgramCache]: Analyzing trace with hash 885017135, now seen corresponding path program 70 times [2020-11-11 18:41:58,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:41:58,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704342577] [2020-11-11 18:41:58,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:41:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:41:59,117 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 16 [2020-11-11 18:41:59,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:41:59,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704342577] [2020-11-11 18:41:59,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:41:59,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:41:59,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25025518] [2020-11-11 18:41:59,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:41:59,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:41:59,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:41:59,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:41:59,211 INFO L87 Difference]: Start difference. First operand 10405 states and 28259 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:00,969 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:42:01,185 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:42:01,479 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:42:01,868 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-11-11 18:42:02,229 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:42:02,683 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:42:03,156 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-11 18:42:03,703 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2020-11-11 18:42:04,231 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2020-11-11 18:42:05,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:42:05,144 INFO L93 Difference]: Finished difference Result 15898 states and 41985 transitions. [2020-11-11 18:42:05,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:42:05,146 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:42:05,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:42:05,163 INFO L225 Difference]: With dead ends: 15898 [2020-11-11 18:42:05,163 INFO L226 Difference]: Without dead ends: 15898 [2020-11-11 18:42:05,164 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:42:05,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15898 states. [2020-11-11 18:42:05,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15898 to 10392. [2020-11-11 18:42:05,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10392 states, 10390 states have (on average 2.7161693936477382) internal successors, (28221), 10391 states have internal predecessors, (28221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:05,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10392 states to 10392 states and 28221 transitions. [2020-11-11 18:42:05,354 INFO L78 Accepts]: Start accepts. Automaton has 10392 states and 28221 transitions. Word has length 110 [2020-11-11 18:42:05,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:42:05,354 INFO L481 AbstractCegarLoop]: Abstraction has 10392 states and 28221 transitions. [2020-11-11 18:42:05,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:05,355 INFO L276 IsEmpty]: Start isEmpty. Operand 10392 states and 28221 transitions. [2020-11-11 18:42:05,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:42:05,365 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:42:05,365 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:42:05,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2020-11-11 18:42:05,365 INFO L429 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:42:05,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:42:05,366 INFO L82 PathProgramCache]: Analyzing trace with hash 2019133323, now seen corresponding path program 71 times [2020-11-11 18:42:05,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:42:05,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814799728] [2020-11-11 18:42:05,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:42:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:42:06,481 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:42:06,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:42:06,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814799728] [2020-11-11 18:42:06,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:42:06,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:42:06,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360360035] [2020-11-11 18:42:06,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:42:06,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:42:06,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:42:06,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:42:06,575 INFO L87 Difference]: Start difference. First operand 10392 states and 28221 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:08,494 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:42:08,717 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:42:09,023 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:42:09,454 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-11-11 18:42:09,815 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:42:10,263 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:42:10,729 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:42:11,225 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2020-11-11 18:42:11,628 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-11-11 18:42:12,159 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2020-11-11 18:42:13,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:42:13,155 INFO L93 Difference]: Finished difference Result 16857 states and 44343 transitions. [2020-11-11 18:42:13,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:42:13,157 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:42:13,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:42:13,175 INFO L225 Difference]: With dead ends: 16857 [2020-11-11 18:42:13,175 INFO L226 Difference]: Without dead ends: 16857 [2020-11-11 18:42:13,176 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=448, Invalid=1532, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:42:13,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16857 states. [2020-11-11 18:42:13,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16857 to 10379. [2020-11-11 18:42:13,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10377 states have (on average 2.715910185988243) internal successors, (28183), 10378 states have internal predecessors, (28183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:13,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 28183 transitions. [2020-11-11 18:42:13,375 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 28183 transitions. Word has length 110 [2020-11-11 18:42:13,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:42:13,375 INFO L481 AbstractCegarLoop]: Abstraction has 10379 states and 28183 transitions. [2020-11-11 18:42:13,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:13,375 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 28183 transitions. [2020-11-11 18:42:13,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:42:13,386 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:42:13,386 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:42:13,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2020-11-11 18:42:13,386 INFO L429 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:42:13,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:42:13,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1839656401, now seen corresponding path program 72 times [2020-11-11 18:42:13,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:42:13,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424463819] [2020-11-11 18:42:13,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:42:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:42:14,569 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:42:14,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:42:14,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424463819] [2020-11-11 18:42:14,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:42:14,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:42:14,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666373280] [2020-11-11 18:42:14,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:42:14,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:42:14,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:42:14,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:42:14,661 INFO L87 Difference]: Start difference. First operand 10379 states and 28183 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:15,980 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:42:16,494 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:42:16,721 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:42:17,035 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:42:17,429 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-11-11 18:42:17,794 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-11 18:42:18,211 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-11-11 18:42:18,633 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2020-11-11 18:42:19,116 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-11-11 18:42:19,674 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2020-11-11 18:42:20,098 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-11-11 18:42:20,686 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2020-11-11 18:42:21,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:42:21,751 INFO L93 Difference]: Finished difference Result 17262 states and 45474 transitions. [2020-11-11 18:42:21,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-11 18:42:21,753 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:42:21,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:42:21,772 INFO L225 Difference]: With dead ends: 17262 [2020-11-11 18:42:21,772 INFO L226 Difference]: Without dead ends: 17262 [2020-11-11 18:42:21,772 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=477, Invalid=1593, Unknown=0, NotChecked=0, Total=2070 [2020-11-11 18:42:21,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17262 states. [2020-11-11 18:42:21,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17262 to 10353. [2020-11-11 18:42:21,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10353 states, 10351 states have (on average 2.715389817408946) internal successors, (28107), 10352 states have internal predecessors, (28107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:21,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10353 states to 10353 states and 28107 transitions. [2020-11-11 18:42:21,966 INFO L78 Accepts]: Start accepts. Automaton has 10353 states and 28107 transitions. Word has length 110 [2020-11-11 18:42:21,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:42:21,966 INFO L481 AbstractCegarLoop]: Abstraction has 10353 states and 28107 transitions. [2020-11-11 18:42:21,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:21,967 INFO L276 IsEmpty]: Start isEmpty. Operand 10353 states and 28107 transitions. [2020-11-11 18:42:21,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:42:21,976 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:42:21,976 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:42:21,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2020-11-11 18:42:21,976 INFO L429 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:42:21,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:42:21,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1888077709, now seen corresponding path program 73 times [2020-11-11 18:42:21,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:42:21,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042898070] [2020-11-11 18:42:21,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:42:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:42:23,145 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:42:23,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:42:23,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042898070] [2020-11-11 18:42:23,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:42:23,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:42:23,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190330419] [2020-11-11 18:42:23,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:42:23,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:42:23,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:42:23,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:42:23,241 INFO L87 Difference]: Start difference. First operand 10353 states and 28107 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:25,089 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:42:25,314 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-11 18:42:25,629 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-11-11 18:42:26,034 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-11-11 18:42:26,424 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-11-11 18:42:26,860 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2020-11-11 18:42:27,190 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-11-11 18:42:27,594 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-11-11 18:42:28,087 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:42:28,643 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:42:29,049 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2020-11-11 18:42:29,666 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2020-11-11 18:42:30,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:42:30,648 INFO L93 Difference]: Finished difference Result 13647 states and 36091 transitions. [2020-11-11 18:42:30,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-11-11 18:42:30,650 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:42:30,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:42:30,669 INFO L225 Difference]: With dead ends: 13647 [2020-11-11 18:42:30,669 INFO L226 Difference]: Without dead ends: 13647 [2020-11-11 18:42:30,670 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=505, Invalid=1657, Unknown=0, NotChecked=0, Total=2162 [2020-11-11 18:42:30,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13647 states. [2020-11-11 18:42:30,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13647 to 8728. [2020-11-11 18:42:30,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8728 states, 8726 states have (on average 2.6967682787073115) internal successors, (23532), 8727 states have internal predecessors, (23532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:30,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8728 states to 8728 states and 23532 transitions. [2020-11-11 18:42:30,844 INFO L78 Accepts]: Start accepts. Automaton has 8728 states and 23532 transitions. Word has length 110 [2020-11-11 18:42:30,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:42:30,844 INFO L481 AbstractCegarLoop]: Abstraction has 8728 states and 23532 transitions. [2020-11-11 18:42:30,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:30,845 INFO L276 IsEmpty]: Start isEmpty. Operand 8728 states and 23532 transitions. [2020-11-11 18:42:30,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:42:30,853 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:42:30,853 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:42:30,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2020-11-11 18:42:30,853 INFO L429 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:42:30,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:42:30,854 INFO L82 PathProgramCache]: Analyzing trace with hash -365769739, now seen corresponding path program 17 times [2020-11-11 18:42:30,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:42:30,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105496685] [2020-11-11 18:42:30,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:42:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:42:31,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:42:31,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105496685] [2020-11-11 18:42:31,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:42:31,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:42:31,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424660029] [2020-11-11 18:42:31,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:42:31,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:42:31,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:42:31,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:42:31,807 INFO L87 Difference]: Start difference. First operand 8728 states and 23532 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:37,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:42:37,200 INFO L93 Difference]: Finished difference Result 12496 states and 33442 transitions. [2020-11-11 18:42:37,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-11-11 18:42:37,203 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:42:37,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:42:37,218 INFO L225 Difference]: With dead ends: 12496 [2020-11-11 18:42:37,218 INFO L226 Difference]: Without dead ends: 12406 [2020-11-11 18:42:37,218 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=786, Invalid=1764, Unknown=0, NotChecked=0, Total=2550 [2020-11-11 18:42:37,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12406 states. [2020-11-11 18:42:37,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12406 to 9955. [2020-11-11 18:42:37,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9955 states, 9953 states have (on average 2.710439063598915) internal successors, (26977), 9954 states have internal predecessors, (26977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:37,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9955 states to 9955 states and 26977 transitions. [2020-11-11 18:42:37,392 INFO L78 Accepts]: Start accepts. Automaton has 9955 states and 26977 transitions. Word has length 110 [2020-11-11 18:42:37,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:42:37,392 INFO L481 AbstractCegarLoop]: Abstraction has 9955 states and 26977 transitions. [2020-11-11 18:42:37,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:37,392 INFO L276 IsEmpty]: Start isEmpty. Operand 9955 states and 26977 transitions. [2020-11-11 18:42:37,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:42:37,402 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:42:37,402 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:42:37,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2020-11-11 18:42:37,402 INFO L429 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:42:37,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:42:37,403 INFO L82 PathProgramCache]: Analyzing trace with hash -2015979413, now seen corresponding path program 74 times [2020-11-11 18:42:37,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:42:37,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976002101] [2020-11-11 18:42:37,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:42:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:42:38,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:42:38,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976002101] [2020-11-11 18:42:38,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:42:38,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:42:38,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712876393] [2020-11-11 18:42:38,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:42:38,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:42:38,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:42:38,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:42:38,584 INFO L87 Difference]: Start difference. First operand 9955 states and 26977 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:40,427 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:42:40,665 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:42:40,921 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-11-11 18:42:41,223 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-11-11 18:42:41,692 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2020-11-11 18:42:42,117 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-11-11 18:42:42,660 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2020-11-11 18:42:43,146 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-11-11 18:42:43,700 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2020-11-11 18:42:44,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:42:44,731 INFO L93 Difference]: Finished difference Result 16586 states and 43973 transitions. [2020-11-11 18:42:44,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:42:44,733 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:42:44,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:42:44,748 INFO L225 Difference]: With dead ends: 16586 [2020-11-11 18:42:44,748 INFO L226 Difference]: Without dead ends: 16586 [2020-11-11 18:42:44,749 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:42:44,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16586 states. [2020-11-11 18:42:44,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16586 to 9955. [2020-11-11 18:42:44,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9955 states, 9953 states have (on average 2.710439063598915) internal successors, (26977), 9954 states have internal predecessors, (26977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:44,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9955 states to 9955 states and 26977 transitions. [2020-11-11 18:42:44,935 INFO L78 Accepts]: Start accepts. Automaton has 9955 states and 26977 transitions. Word has length 110 [2020-11-11 18:42:44,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:42:44,935 INFO L481 AbstractCegarLoop]: Abstraction has 9955 states and 26977 transitions. [2020-11-11 18:42:44,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:44,935 INFO L276 IsEmpty]: Start isEmpty. Operand 9955 states and 26977 transitions. [2020-11-11 18:42:44,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:42:44,945 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:42:44,945 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:42:44,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2020-11-11 18:42:44,945 INFO L429 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:42:44,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:42:44,946 INFO L82 PathProgramCache]: Analyzing trace with hash -2085640467, now seen corresponding path program 75 times [2020-11-11 18:42:44,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:42:44,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529945445] [2020-11-11 18:42:44,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:42:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:42:46,156 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 16 [2020-11-11 18:42:46,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:42:46,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529945445] [2020-11-11 18:42:46,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:42:46,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:42:46,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30460623] [2020-11-11 18:42:46,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:42:46,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:42:46,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:42:46,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:42:46,255 INFO L87 Difference]: Start difference. First operand 9955 states and 26977 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:47,597 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:42:48,115 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:42:48,352 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:42:48,616 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-11-11 18:42:48,927 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-11-11 18:42:49,401 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2020-11-11 18:42:49,840 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-11-11 18:42:50,409 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2020-11-11 18:42:50,967 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2020-11-11 18:42:51,555 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2020-11-11 18:42:52,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:42:52,622 INFO L93 Difference]: Finished difference Result 16196 states and 42599 transitions. [2020-11-11 18:42:52,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:42:52,624 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:42:52,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:42:52,641 INFO L225 Difference]: With dead ends: 16196 [2020-11-11 18:42:52,642 INFO L226 Difference]: Without dead ends: 16196 [2020-11-11 18:42:52,642 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:42:52,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16196 states. [2020-11-11 18:42:52,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16196 to 9851. [2020-11-11 18:42:52,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9851 states, 9849 states have (on average 2.7081937252512946) internal successors, (26673), 9850 states have internal predecessors, (26673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:52,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9851 states to 9851 states and 26673 transitions. [2020-11-11 18:42:52,827 INFO L78 Accepts]: Start accepts. Automaton has 9851 states and 26673 transitions. Word has length 110 [2020-11-11 18:42:52,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:42:52,827 INFO L481 AbstractCegarLoop]: Abstraction has 9851 states and 26673 transitions. [2020-11-11 18:42:52,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:52,827 INFO L276 IsEmpty]: Start isEmpty. Operand 9851 states and 26673 transitions. [2020-11-11 18:42:52,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:42:52,836 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:42:52,837 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:42:52,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2020-11-11 18:42:52,837 INFO L429 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:42:52,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:42:52,837 INFO L82 PathProgramCache]: Analyzing trace with hash -857845173, now seen corresponding path program 76 times [2020-11-11 18:42:52,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:42:52,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409273474] [2020-11-11 18:42:52,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:42:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:42:53,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:42:53,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409273474] [2020-11-11 18:42:53,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:42:53,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:42:53,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794926250] [2020-11-11 18:42:53,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:42:53,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:42:53,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:42:53,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:42:53,917 INFO L87 Difference]: Start difference. First operand 9851 states and 26673 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:42:55,269 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:42:55,806 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:42:56,049 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:42:56,307 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-11-11 18:42:56,611 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-11-11 18:42:57,086 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2020-11-11 18:42:57,511 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-11-11 18:42:57,925 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2020-11-11 18:42:58,535 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-11-11 18:42:59,084 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2020-11-11 18:43:00,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:43:00,101 INFO L93 Difference]: Finished difference Result 14712 states and 38684 transitions. [2020-11-11 18:43:00,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:43:00,103 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:43:00,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:43:00,120 INFO L225 Difference]: With dead ends: 14712 [2020-11-11 18:43:00,120 INFO L226 Difference]: Without dead ends: 14712 [2020-11-11 18:43:00,120 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:43:00,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14712 states. [2020-11-11 18:43:00,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14712 to 8460. [2020-11-11 18:43:00,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8460 states, 8458 states have (on average 2.69354457318515) internal successors, (22782), 8459 states have internal predecessors, (22782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:00,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8460 states to 8460 states and 22782 transitions. [2020-11-11 18:43:00,283 INFO L78 Accepts]: Start accepts. Automaton has 8460 states and 22782 transitions. Word has length 110 [2020-11-11 18:43:00,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:43:00,283 INFO L481 AbstractCegarLoop]: Abstraction has 8460 states and 22782 transitions. [2020-11-11 18:43:00,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:00,284 INFO L276 IsEmpty]: Start isEmpty. Operand 8460 states and 22782 transitions. [2020-11-11 18:43:00,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:43:00,291 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:43:00,292 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:43:00,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2020-11-11 18:43:00,292 INFO L429 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:43:00,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:43:00,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1572250843, now seen corresponding path program 18 times [2020-11-11 18:43:00,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:43:00,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507222337] [2020-11-11 18:43:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:43:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:43:01,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:43:01,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507222337] [2020-11-11 18:43:01,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:43:01,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:43:01,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671479306] [2020-11-11 18:43:01,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:43:01,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:43:01,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:43:01,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:43:01,333 INFO L87 Difference]: Start difference. First operand 8460 states and 22782 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:08,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:43:08,580 INFO L93 Difference]: Finished difference Result 12719 states and 33975 transitions. [2020-11-11 18:43:08,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-11-11 18:43:08,583 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:43:08,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:43:08,598 INFO L225 Difference]: With dead ends: 12719 [2020-11-11 18:43:08,598 INFO L226 Difference]: Without dead ends: 12637 [2020-11-11 18:43:08,599 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=912, Invalid=1950, Unknown=0, NotChecked=0, Total=2862 [2020-11-11 18:43:08,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12637 states. [2020-11-11 18:43:08,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12637 to 9877. [2020-11-11 18:43:08,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9877 states, 9875 states have (on average 2.708759493670886) internal successors, (26749), 9876 states have internal predecessors, (26749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:08,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9877 states to 9877 states and 26749 transitions. [2020-11-11 18:43:08,770 INFO L78 Accepts]: Start accepts. Automaton has 9877 states and 26749 transitions. Word has length 110 [2020-11-11 18:43:08,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:43:08,770 INFO L481 AbstractCegarLoop]: Abstraction has 9877 states and 26749 transitions. [2020-11-11 18:43:08,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:08,770 INFO L276 IsEmpty]: Start isEmpty. Operand 9877 states and 26749 transitions. [2020-11-11 18:43:08,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:43:08,779 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:43:08,779 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:43:08,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2020-11-11 18:43:08,779 INFO L429 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:43:08,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:43:08,780 INFO L82 PathProgramCache]: Analyzing trace with hash -77958831, now seen corresponding path program 77 times [2020-11-11 18:43:08,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:43:08,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444117050] [2020-11-11 18:43:08,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:43:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:43:09,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:43:09,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444117050] [2020-11-11 18:43:09,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:43:09,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:43:09,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283994956] [2020-11-11 18:43:09,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:43:09,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:43:09,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:43:09,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:43:09,951 INFO L87 Difference]: Start difference. First operand 9877 states and 26749 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:11,339 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:43:11,878 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:43:12,129 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:43:12,393 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-11-11 18:43:12,700 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-11-11 18:43:13,183 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2020-11-11 18:43:13,667 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:43:14,117 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2020-11-11 18:43:14,648 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-11-11 18:43:15,200 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2020-11-11 18:43:16,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:43:16,291 INFO L93 Difference]: Finished difference Result 16986 states and 44606 transitions. [2020-11-11 18:43:16,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:43:16,293 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:43:16,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:43:16,311 INFO L225 Difference]: With dead ends: 16986 [2020-11-11 18:43:16,311 INFO L226 Difference]: Without dead ends: 16986 [2020-11-11 18:43:16,312 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:43:16,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16986 states. [2020-11-11 18:43:16,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16986 to 9799. [2020-11-11 18:43:16,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9799 states, 9797 states have (on average 2.7070531795447588) internal successors, (26521), 9798 states have internal predecessors, (26521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:16,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9799 states to 9799 states and 26521 transitions. [2020-11-11 18:43:16,506 INFO L78 Accepts]: Start accepts. Automaton has 9799 states and 26521 transitions. Word has length 110 [2020-11-11 18:43:16,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:43:16,506 INFO L481 AbstractCegarLoop]: Abstraction has 9799 states and 26521 transitions. [2020-11-11 18:43:16,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:16,506 INFO L276 IsEmpty]: Start isEmpty. Operand 9799 states and 26521 transitions. [2020-11-11 18:43:16,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:43:16,516 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:43:16,516 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:43:16,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2020-11-11 18:43:16,516 INFO L429 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:43:16,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:43:16,516 INFO L82 PathProgramCache]: Analyzing trace with hash -147619885, now seen corresponding path program 78 times [2020-11-11 18:43:16,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:43:16,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624126810] [2020-11-11 18:43:16,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:43:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:43:17,680 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 16 [2020-11-11 18:43:17,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:43:17,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624126810] [2020-11-11 18:43:17,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:43:17,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:43:17,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669788503] [2020-11-11 18:43:17,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:43:17,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:43:17,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:43:17,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:43:17,779 INFO L87 Difference]: Start difference. First operand 9799 states and 26521 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:19,205 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:43:19,748 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:43:19,998 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:43:20,264 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-11-11 18:43:20,580 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-11-11 18:43:21,078 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2020-11-11 18:43:21,608 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:43:22,068 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2020-11-11 18:43:22,630 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2020-11-11 18:43:23,166 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2020-11-11 18:43:24,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:43:24,324 INFO L93 Difference]: Finished difference Result 17624 states and 46071 transitions. [2020-11-11 18:43:24,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:43:24,327 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:43:24,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:43:24,345 INFO L225 Difference]: With dead ends: 17624 [2020-11-11 18:43:24,346 INFO L226 Difference]: Without dead ends: 17624 [2020-11-11 18:43:24,346 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:43:24,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17624 states. [2020-11-11 18:43:24,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17624 to 9786. [2020-11-11 18:43:24,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9786 states, 9784 states have (on average 2.706766148814391) internal successors, (26483), 9785 states have internal predecessors, (26483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:24,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9786 states to 9786 states and 26483 transitions. [2020-11-11 18:43:24,536 INFO L78 Accepts]: Start accepts. Automaton has 9786 states and 26483 transitions. Word has length 110 [2020-11-11 18:43:24,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:43:24,537 INFO L481 AbstractCegarLoop]: Abstraction has 9786 states and 26483 transitions. [2020-11-11 18:43:24,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:24,537 INFO L276 IsEmpty]: Start isEmpty. Operand 9786 states and 26483 transitions. [2020-11-11 18:43:24,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:43:24,546 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:43:24,546 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:43:24,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2020-11-11 18:43:24,546 INFO L429 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:43:24,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:43:24,546 INFO L82 PathProgramCache]: Analyzing trace with hash 986496303, now seen corresponding path program 79 times [2020-11-11 18:43:24,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:43:24,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555468506] [2020-11-11 18:43:24,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:43:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:43:25,726 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:43:25,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:43:25,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555468506] [2020-11-11 18:43:25,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:43:25,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:43:25,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571383588] [2020-11-11 18:43:25,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:43:25,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:43:25,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:43:25,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:43:25,827 INFO L87 Difference]: Start difference. First operand 9786 states and 26483 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:27,244 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:43:27,794 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:43:28,044 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:43:28,321 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-11-11 18:43:28,639 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-11-11 18:43:29,153 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2020-11-11 18:43:29,661 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:43:30,159 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:43:30,715 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:43:31,143 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-11-11 18:43:31,726 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2020-11-11 18:43:32,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:43:32,845 INFO L93 Difference]: Finished difference Result 15412 states and 40291 transitions. [2020-11-11 18:43:32,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:43:32,847 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:43:32,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:43:32,863 INFO L225 Difference]: With dead ends: 15412 [2020-11-11 18:43:32,864 INFO L226 Difference]: Without dead ends: 15412 [2020-11-11 18:43:32,864 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=448, Invalid=1532, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:43:32,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15412 states. [2020-11-11 18:43:33,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15412 to 8434. [2020-11-11 18:43:33,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8434 states, 8432 states have (on average 2.6928368121442126) internal successors, (22706), 8433 states have internal predecessors, (22706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:33,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8434 states to 8434 states and 22706 transitions. [2020-11-11 18:43:33,029 INFO L78 Accepts]: Start accepts. Automaton has 8434 states and 22706 transitions. Word has length 110 [2020-11-11 18:43:33,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:43:33,030 INFO L481 AbstractCegarLoop]: Abstraction has 8434 states and 22706 transitions. [2020-11-11 18:43:33,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:33,030 INFO L276 IsEmpty]: Start isEmpty. Operand 8434 states and 22706 transitions. [2020-11-11 18:43:33,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:43:33,038 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:43:33,038 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:43:33,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2020-11-11 18:43:33,038 INFO L429 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:43:33,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:43:33,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1967115603, now seen corresponding path program 19 times [2020-11-11 18:43:33,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:43:33,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214249664] [2020-11-11 18:43:33,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:43:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:43:34,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:43:34,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214249664] [2020-11-11 18:43:34,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:43:34,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:43:34,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618598154] [2020-11-11 18:43:34,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:43:34,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:43:34,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:43:34,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:43:34,045 INFO L87 Difference]: Start difference. First operand 8434 states and 22706 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:41,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:43:41,673 INFO L93 Difference]: Finished difference Result 13163 states and 35220 transitions. [2020-11-11 18:43:41,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-11-11 18:43:41,676 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:43:41,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:43:41,690 INFO L225 Difference]: With dead ends: 13163 [2020-11-11 18:43:41,691 INFO L226 Difference]: Without dead ends: 13081 [2020-11-11 18:43:41,691 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1036, Invalid=2156, Unknown=0, NotChecked=0, Total=3192 [2020-11-11 18:43:41,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13081 states. [2020-11-11 18:43:41,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13081 to 10059. [2020-11-11 18:43:41,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10059 states, 10057 states have (on average 2.712637963607438) internal successors, (27281), 10058 states have internal predecessors, (27281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:41,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10059 states to 10059 states and 27281 transitions. [2020-11-11 18:43:41,857 INFO L78 Accepts]: Start accepts. Automaton has 10059 states and 27281 transitions. Word has length 110 [2020-11-11 18:43:41,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:43:41,857 INFO L481 AbstractCegarLoop]: Abstraction has 10059 states and 27281 transitions. [2020-11-11 18:43:41,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:41,857 INFO L276 IsEmpty]: Start isEmpty. Operand 10059 states and 27281 transitions. [2020-11-11 18:43:41,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:43:41,867 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:43:41,867 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:43:41,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2020-11-11 18:43:41,867 INFO L429 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:43:41,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:43:41,867 INFO L82 PathProgramCache]: Analyzing trace with hash 316905929, now seen corresponding path program 80 times [2020-11-11 18:43:41,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:43:41,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490836121] [2020-11-11 18:43:41,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:43:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:43:42,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:43:42,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490836121] [2020-11-11 18:43:42,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:43:42,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:43:42,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703722618] [2020-11-11 18:43:42,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:43:42,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:43:42,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:43:42,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:43:42,997 INFO L87 Difference]: Start difference. First operand 10059 states and 27281 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:44,454 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:43:45,012 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:43:45,262 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:43:45,536 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-11-11 18:43:45,861 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-11-11 18:43:46,370 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-11-11 18:43:46,843 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2020-11-11 18:43:47,327 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-11-11 18:43:47,869 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-11-11 18:43:48,435 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2020-11-11 18:43:49,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:43:49,576 INFO L93 Difference]: Finished difference Result 17430 states and 45851 transitions. [2020-11-11 18:43:49,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:43:49,579 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:43:49,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:43:49,598 INFO L225 Difference]: With dead ends: 17430 [2020-11-11 18:43:49,598 INFO L226 Difference]: Without dead ends: 17430 [2020-11-11 18:43:49,598 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:43:49,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17430 states. [2020-11-11 18:43:49,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17430 to 9981. [2020-11-11 18:43:49,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.710993085479507) internal successors, (27053), 9980 states have internal predecessors, (27053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:49,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 27053 transitions. [2020-11-11 18:43:49,792 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 27053 transitions. Word has length 110 [2020-11-11 18:43:49,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:43:49,793 INFO L481 AbstractCegarLoop]: Abstraction has 9981 states and 27053 transitions. [2020-11-11 18:43:49,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:49,793 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 27053 transitions. [2020-11-11 18:43:49,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:43:49,802 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:43:49,803 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:43:49,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2020-11-11 18:43:49,803 INFO L429 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:43:49,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:43:49,803 INFO L82 PathProgramCache]: Analyzing trace with hash 247244875, now seen corresponding path program 81 times [2020-11-11 18:43:49,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:43:49,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447424924] [2020-11-11 18:43:49,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:43:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:43:51,039 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 16 [2020-11-11 18:43:51,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:43:51,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447424924] [2020-11-11 18:43:51,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:43:51,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:43:51,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879967241] [2020-11-11 18:43:51,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:43:51,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:43:51,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:43:51,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:43:51,143 INFO L87 Difference]: Start difference. First operand 9981 states and 27053 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:52,618 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:43:53,183 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:43:53,445 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:43:53,721 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-11-11 18:43:54,040 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-11-11 18:43:54,567 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-11-11 18:43:55,049 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2020-11-11 18:43:55,542 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-11-11 18:43:56,127 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2020-11-11 18:43:56,678 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 63 [2020-11-11 18:43:57,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:43:57,907 INFO L93 Difference]: Finished difference Result 18068 states and 47316 transitions. [2020-11-11 18:43:57,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:43:57,910 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:43:57,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:43:57,930 INFO L225 Difference]: With dead ends: 18068 [2020-11-11 18:43:57,930 INFO L226 Difference]: Without dead ends: 18068 [2020-11-11 18:43:57,931 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:43:57,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18068 states. [2020-11-11 18:43:58,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18068 to 9968. [2020-11-11 18:43:58,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9968 states, 9966 states have (on average 2.7107164358819986) internal successors, (27015), 9967 states have internal predecessors, (27015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:58,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9968 states to 9968 states and 27015 transitions. [2020-11-11 18:43:58,132 INFO L78 Accepts]: Start accepts. Automaton has 9968 states and 27015 transitions. Word has length 110 [2020-11-11 18:43:58,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:43:58,132 INFO L481 AbstractCegarLoop]: Abstraction has 9968 states and 27015 transitions. [2020-11-11 18:43:58,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:43:58,133 INFO L276 IsEmpty]: Start isEmpty. Operand 9968 states and 27015 transitions. [2020-11-11 18:43:58,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:43:58,142 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:43:58,143 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:43:58,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2020-11-11 18:43:58,143 INFO L429 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:43:58,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:43:58,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1381361063, now seen corresponding path program 82 times [2020-11-11 18:43:58,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:43:58,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026809797] [2020-11-11 18:43:58,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:43:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:43:59,498 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:43:59,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:43:59,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026809797] [2020-11-11 18:43:59,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:43:59,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:43:59,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8060896] [2020-11-11 18:43:59,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:43:59,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:43:59,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:43:59,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:43:59,606 INFO L87 Difference]: Start difference. First operand 9968 states and 27015 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:01,123 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:44:01,690 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:44:01,951 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:44:02,227 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-11-11 18:44:02,551 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-11-11 18:44:03,089 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-11-11 18:44:03,582 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2020-11-11 18:44:04,091 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2020-11-11 18:44:04,634 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-11-11 18:44:05,060 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-11-11 18:44:05,609 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 65 [2020-11-11 18:44:06,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:44:06,893 INFO L93 Difference]: Finished difference Result 19027 states and 49674 transitions. [2020-11-11 18:44:06,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:44:06,896 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:44:06,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:44:06,916 INFO L225 Difference]: With dead ends: 19027 [2020-11-11 18:44:06,916 INFO L226 Difference]: Without dead ends: 19027 [2020-11-11 18:44:06,916 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=448, Invalid=1532, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:44:06,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19027 states. [2020-11-11 18:44:07,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19027 to 9955. [2020-11-11 18:44:07,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9955 states, 9953 states have (on average 2.710439063598915) internal successors, (26977), 9954 states have internal predecessors, (26977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:07,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9955 states to 9955 states and 26977 transitions. [2020-11-11 18:44:07,125 INFO L78 Accepts]: Start accepts. Automaton has 9955 states and 26977 transitions. Word has length 110 [2020-11-11 18:44:07,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:44:07,125 INFO L481 AbstractCegarLoop]: Abstraction has 9955 states and 26977 transitions. [2020-11-11 18:44:07,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:07,125 INFO L276 IsEmpty]: Start isEmpty. Operand 9955 states and 26977 transitions. [2020-11-11 18:44:07,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:44:07,135 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:44:07,135 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:44:07,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2020-11-11 18:44:07,135 INFO L429 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:44:07,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:44:07,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1201884141, now seen corresponding path program 83 times [2020-11-11 18:44:07,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:44:07,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350756704] [2020-11-11 18:44:07,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:44:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:44:08,420 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:44:08,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:44:08,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350756704] [2020-11-11 18:44:08,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:44:08,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:44:08,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610121969] [2020-11-11 18:44:08,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:44:08,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:44:08,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:44:08,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:44:08,528 INFO L87 Difference]: Start difference. First operand 9955 states and 26977 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:10,002 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:44:10,603 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:44:10,870 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:44:11,162 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-11-11 18:44:11,488 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-11-11 18:44:12,036 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-11-11 18:44:12,465 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2020-11-11 18:44:12,923 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-11 18:44:13,430 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:44:14,016 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:44:14,447 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-11-11 18:44:15,056 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2020-11-11 18:44:16,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:44:16,285 INFO L93 Difference]: Finished difference Result 15843 states and 41498 transitions. [2020-11-11 18:44:16,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-11 18:44:16,288 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:44:16,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:44:16,305 INFO L225 Difference]: With dead ends: 15843 [2020-11-11 18:44:16,305 INFO L226 Difference]: Without dead ends: 15843 [2020-11-11 18:44:16,305 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=477, Invalid=1593, Unknown=0, NotChecked=0, Total=2070 [2020-11-11 18:44:16,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15843 states. [2020-11-11 18:44:16,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15843 to 8382. [2020-11-11 18:44:16,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8382 states, 8380 states have (on average 2.6914081145584725) internal successors, (22554), 8381 states have internal predecessors, (22554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:16,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8382 states to 8382 states and 22554 transitions. [2020-11-11 18:44:16,479 INFO L78 Accepts]: Start accepts. Automaton has 8382 states and 22554 transitions. Word has length 110 [2020-11-11 18:44:16,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:44:16,479 INFO L481 AbstractCegarLoop]: Abstraction has 8382 states and 22554 transitions. [2020-11-11 18:44:16,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:16,479 INFO L276 IsEmpty]: Start isEmpty. Operand 8382 states and 22554 transitions. [2020-11-11 18:44:16,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:44:16,488 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:44:16,488 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:44:16,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2020-11-11 18:44:16,488 INFO L429 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:44:16,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:44:16,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1539159985, now seen corresponding path program 20 times [2020-11-11 18:44:16,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:44:16,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480046217] [2020-11-11 18:44:16,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:44:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:44:17,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:44:17,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480046217] [2020-11-11 18:44:17,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:44:17,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:44:17,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027323177] [2020-11-11 18:44:17,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:44:17,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:44:17,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:44:17,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:44:17,635 INFO L87 Difference]: Start difference. First operand 8382 states and 22554 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:25,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:44:25,691 INFO L93 Difference]: Finished difference Result 13607 states and 36465 transitions. [2020-11-11 18:44:25,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-11-11 18:44:25,693 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:44:25,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:44:25,710 INFO L225 Difference]: With dead ends: 13607 [2020-11-11 18:44:25,710 INFO L226 Difference]: Without dead ends: 13525 [2020-11-11 18:44:25,710 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1158, Invalid=2382, Unknown=0, NotChecked=0, Total=3540 [2020-11-11 18:44:25,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13525 states. [2020-11-11 18:44:25,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13525 to 10111. [2020-11-11 18:44:25,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10111 states, 10109 states have (on average 2.713720447126323) internal successors, (27433), 10110 states have internal predecessors, (27433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:25,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10111 states to 10111 states and 27433 transitions. [2020-11-11 18:44:25,886 INFO L78 Accepts]: Start accepts. Automaton has 10111 states and 27433 transitions. Word has length 110 [2020-11-11 18:44:25,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:44:25,886 INFO L481 AbstractCegarLoop]: Abstraction has 10111 states and 27433 transitions. [2020-11-11 18:44:25,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:25,886 INFO L276 IsEmpty]: Start isEmpty. Operand 10111 states and 27433 transitions. [2020-11-11 18:44:25,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:44:25,896 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:44:25,896 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:44:25,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2020-11-11 18:44:25,896 INFO L429 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:44:25,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:44:25,896 INFO L82 PathProgramCache]: Analyzing trace with hash -111049689, now seen corresponding path program 84 times [2020-11-11 18:44:25,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:44:25,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745041552] [2020-11-11 18:44:25,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:44:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:44:27,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:44:27,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745041552] [2020-11-11 18:44:27,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:44:27,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:44:27,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868778019] [2020-11-11 18:44:27,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:44:27,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:44:27,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:44:27,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:44:27,077 INFO L87 Difference]: Start difference. First operand 10111 states and 27433 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:28,595 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:44:29,179 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:44:29,462 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:44:29,746 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-11-11 18:44:30,196 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-11 18:44:30,578 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-11-11 18:44:31,089 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2020-11-11 18:44:31,577 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-11-11 18:44:32,129 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-11-11 18:44:32,730 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2020-11-11 18:44:33,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:44:33,909 INFO L93 Difference]: Finished difference Result 17874 states and 47096 transitions. [2020-11-11 18:44:33,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:44:33,912 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:44:33,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:44:33,931 INFO L225 Difference]: With dead ends: 17874 [2020-11-11 18:44:33,931 INFO L226 Difference]: Without dead ends: 17874 [2020-11-11 18:44:33,931 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:44:33,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17874 states. [2020-11-11 18:44:34,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17874 to 10033. [2020-11-11 18:44:34,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10033 states, 10031 states have (on average 2.712092513209052) internal successors, (27205), 10032 states have internal predecessors, (27205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:34,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10033 states to 10033 states and 27205 transitions. [2020-11-11 18:44:34,132 INFO L78 Accepts]: Start accepts. Automaton has 10033 states and 27205 transitions. Word has length 110 [2020-11-11 18:44:34,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:44:34,132 INFO L481 AbstractCegarLoop]: Abstraction has 10033 states and 27205 transitions. [2020-11-11 18:44:34,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:34,133 INFO L276 IsEmpty]: Start isEmpty. Operand 10033 states and 27205 transitions. [2020-11-11 18:44:34,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:44:34,143 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:44:34,143 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:44:34,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2020-11-11 18:44:34,143 INFO L429 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:44:34,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:44:34,143 INFO L82 PathProgramCache]: Analyzing trace with hash -180710743, now seen corresponding path program 85 times [2020-11-11 18:44:34,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:44:34,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121523209] [2020-11-11 18:44:34,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:44:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:44:35,433 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 16 [2020-11-11 18:44:35,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:44:35,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121523209] [2020-11-11 18:44:35,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:44:35,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:44:35,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820947446] [2020-11-11 18:44:35,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:44:35,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:44:35,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:44:35,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:44:35,541 INFO L87 Difference]: Start difference. First operand 10033 states and 27205 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:37,094 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:44:37,686 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:44:37,967 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:44:38,248 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-11-11 18:44:38,714 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-11 18:44:39,173 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-11-11 18:44:39,698 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2020-11-11 18:44:40,195 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-11-11 18:44:40,806 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2020-11-11 18:44:41,401 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 63 [2020-11-11 18:44:42,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:44:42,641 INFO L93 Difference]: Finished difference Result 18512 states and 48561 transitions. [2020-11-11 18:44:42,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:44:42,644 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:44:42,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:44:42,664 INFO L225 Difference]: With dead ends: 18512 [2020-11-11 18:44:42,664 INFO L226 Difference]: Without dead ends: 18512 [2020-11-11 18:44:42,664 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:44:42,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18512 states. [2020-11-11 18:44:42,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18512 to 10020. [2020-11-11 18:44:42,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10020 states, 10018 states have (on average 2.711818726292673) internal successors, (27167), 10019 states have internal predecessors, (27167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:42,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10020 states to 10020 states and 27167 transitions. [2020-11-11 18:44:42,864 INFO L78 Accepts]: Start accepts. Automaton has 10020 states and 27167 transitions. Word has length 110 [2020-11-11 18:44:42,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:44:42,864 INFO L481 AbstractCegarLoop]: Abstraction has 10020 states and 27167 transitions. [2020-11-11 18:44:42,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:42,864 INFO L276 IsEmpty]: Start isEmpty. Operand 10020 states and 27167 transitions. [2020-11-11 18:44:42,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:44:42,873 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:44:42,873 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:44:42,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2020-11-11 18:44:42,873 INFO L429 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:44:42,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:44:42,874 INFO L82 PathProgramCache]: Analyzing trace with hash 953405445, now seen corresponding path program 86 times [2020-11-11 18:44:42,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:44:42,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773175424] [2020-11-11 18:44:42,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:44:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:44:44,136 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:44:44,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:44:44,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773175424] [2020-11-11 18:44:44,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:44:44,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:44:44,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028427056] [2020-11-11 18:44:44,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:44:44,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:44:44,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:44:44,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:44:44,243 INFO L87 Difference]: Start difference. First operand 10020 states and 27167 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:45,815 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:44:46,416 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:44:46,699 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:44:47,000 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-11-11 18:44:47,473 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-11 18:44:47,870 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-11-11 18:44:48,402 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2020-11-11 18:44:48,928 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2020-11-11 18:44:49,485 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2020-11-11 18:44:49,916 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-11-11 18:44:50,512 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 65 [2020-11-11 18:44:51,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:44:51,842 INFO L93 Difference]: Finished difference Result 19471 states and 50919 transitions. [2020-11-11 18:44:51,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:44:51,844 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:44:51,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:44:51,866 INFO L225 Difference]: With dead ends: 19471 [2020-11-11 18:44:51,866 INFO L226 Difference]: Without dead ends: 19471 [2020-11-11 18:44:51,866 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=448, Invalid=1532, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:44:51,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19471 states. [2020-11-11 18:44:52,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19471 to 10007. [2020-11-11 18:44:52,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10007 states, 10005 states have (on average 2.711544227886057) internal successors, (27129), 10006 states have internal predecessors, (27129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:52,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10007 states to 10007 states and 27129 transitions. [2020-11-11 18:44:52,075 INFO L78 Accepts]: Start accepts. Automaton has 10007 states and 27129 transitions. Word has length 110 [2020-11-11 18:44:52,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:44:52,075 INFO L481 AbstractCegarLoop]: Abstraction has 10007 states and 27129 transitions. [2020-11-11 18:44:52,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:52,075 INFO L276 IsEmpty]: Start isEmpty. Operand 10007 states and 27129 transitions. [2020-11-11 18:44:52,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:44:52,085 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:44:52,085 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:44:52,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2020-11-11 18:44:52,086 INFO L429 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:44:52,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:44:52,086 INFO L82 PathProgramCache]: Analyzing trace with hash 773928523, now seen corresponding path program 87 times [2020-11-11 18:44:52,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:44:52,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246468774] [2020-11-11 18:44:52,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:44:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:44:53,460 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:44:53,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:44:53,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246468774] [2020-11-11 18:44:53,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:44:53,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:44:53,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858450857] [2020-11-11 18:44:53,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:44:53,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:44:53,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:44:53,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:44:53,569 INFO L87 Difference]: Start difference. First operand 10007 states and 27129 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:44:55,198 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:44:55,576 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2020-11-11 18:44:55,814 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:44:56,094 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:44:56,402 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-11-11 18:44:56,891 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-11 18:44:57,311 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-11-11 18:44:57,782 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2020-11-11 18:44:58,254 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-11 18:44:58,789 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:44:59,432 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:44:59,888 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-11-11 18:45:00,545 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 65 [2020-11-11 18:45:01,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:45:01,968 INFO L93 Difference]: Finished difference Result 19876 states and 52050 transitions. [2020-11-11 18:45:01,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-11 18:45:01,971 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:45:01,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:45:01,991 INFO L225 Difference]: With dead ends: 19876 [2020-11-11 18:45:01,991 INFO L226 Difference]: Without dead ends: 19876 [2020-11-11 18:45:01,992 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=477, Invalid=1593, Unknown=0, NotChecked=0, Total=2070 [2020-11-11 18:45:02,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19876 states. [2020-11-11 18:45:02,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19876 to 9981. [2020-11-11 18:45:02,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.710993085479507) internal successors, (27053), 9980 states have internal predecessors, (27053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:02,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 27053 transitions. [2020-11-11 18:45:02,195 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 27053 transitions. Word has length 110 [2020-11-11 18:45:02,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:45:02,195 INFO L481 AbstractCegarLoop]: Abstraction has 9981 states and 27053 transitions. [2020-11-11 18:45:02,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:02,195 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 27053 transitions. [2020-11-11 18:45:02,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:45:02,205 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:45:02,205 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:45:02,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2020-11-11 18:45:02,205 INFO L429 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:45:02,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:45:02,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1341161709, now seen corresponding path program 88 times [2020-11-11 18:45:02,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:45:02,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532074658] [2020-11-11 18:45:02,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:45:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:45:03,669 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:45:03,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:45:03,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532074658] [2020-11-11 18:45:03,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:45:03,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:45:03,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155177066] [2020-11-11 18:45:03,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:45:03,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:45:03,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:45:03,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:45:03,780 INFO L87 Difference]: Start difference. First operand 9981 states and 27053 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:05,398 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:45:05,774 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2020-11-11 18:45:06,014 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:45:06,309 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:45:06,634 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-11-11 18:45:07,125 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-11 18:45:07,564 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-11-11 18:45:08,002 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-11-11 18:45:08,349 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2020-11-11 18:45:08,808 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-11 18:45:09,362 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2020-11-11 18:45:10,001 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2020-11-11 18:45:10,458 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-11-11 18:45:11,149 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2020-11-11 18:45:12,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:45:12,525 INFO L93 Difference]: Finished difference Result 16261 states and 42667 transitions. [2020-11-11 18:45:12,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-11-11 18:45:12,527 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:45:12,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:45:12,545 INFO L225 Difference]: With dead ends: 16261 [2020-11-11 18:45:12,545 INFO L226 Difference]: Without dead ends: 16261 [2020-11-11 18:45:12,546 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=505, Invalid=1657, Unknown=0, NotChecked=0, Total=2162 [2020-11-11 18:45:12,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16261 states. [2020-11-11 18:45:12,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16261 to 8356. [2020-11-11 18:45:12,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8356 states, 8354 states have (on average 2.6906870960019154) internal successors, (22478), 8355 states have internal predecessors, (22478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:12,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8356 states to 8356 states and 22478 transitions. [2020-11-11 18:45:12,715 INFO L78 Accepts]: Start accepts. Automaton has 8356 states and 22478 transitions. Word has length 110 [2020-11-11 18:45:12,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:45:12,715 INFO L481 AbstractCegarLoop]: Abstraction has 8356 states and 22478 transitions. [2020-11-11 18:45:12,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:12,715 INFO L276 IsEmpty]: Start isEmpty. Operand 8356 states and 22478 transitions. [2020-11-11 18:45:12,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:45:12,723 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:45:12,723 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:45:12,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2020-11-11 18:45:12,723 INFO L429 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:45:12,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:45:12,724 INFO L82 PathProgramCache]: Analyzing trace with hash 623667231, now seen corresponding path program 21 times [2020-11-11 18:45:12,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:45:12,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278204047] [2020-11-11 18:45:12,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:45:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:45:13,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:45:13,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278204047] [2020-11-11 18:45:13,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:45:13,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:45:13,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697679064] [2020-11-11 18:45:13,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:45:13,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:45:13,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:45:13,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:45:13,910 INFO L87 Difference]: Start difference. First operand 8356 states and 22478 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:23,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:45:23,452 INFO L93 Difference]: Finished difference Result 12058 states and 32056 transitions. [2020-11-11 18:45:23,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-11-11 18:45:23,455 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:45:23,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:45:23,467 INFO L225 Difference]: With dead ends: 12058 [2020-11-11 18:45:23,468 INFO L226 Difference]: Without dead ends: 11976 [2020-11-11 18:45:23,468 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1278, Invalid=2628, Unknown=0, NotChecked=0, Total=3906 [2020-11-11 18:45:23,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11976 states. [2020-11-11 18:45:23,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11976 to 9072. [2020-11-11 18:45:23,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9072 states, 9070 states have (on average 2.6952590959206173) internal successors, (24446), 9071 states have internal predecessors, (24446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:23,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9072 states to 9072 states and 24446 transitions. [2020-11-11 18:45:23,621 INFO L78 Accepts]: Start accepts. Automaton has 9072 states and 24446 transitions. Word has length 110 [2020-11-11 18:45:23,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:45:23,622 INFO L481 AbstractCegarLoop]: Abstraction has 9072 states and 24446 transitions. [2020-11-11 18:45:23,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:23,622 INFO L276 IsEmpty]: Start isEmpty. Operand 9072 states and 24446 transitions. [2020-11-11 18:45:23,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:45:23,630 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:45:23,631 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:45:23,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2020-11-11 18:45:23,631 INFO L429 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:45:23,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:45:23,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1026542443, now seen corresponding path program 89 times [2020-11-11 18:45:23,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:45:23,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029907438] [2020-11-11 18:45:23,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:45:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:45:24,700 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2020-11-11 18:45:24,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:45:24,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029907438] [2020-11-11 18:45:24,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:45:24,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:45:24,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435969558] [2020-11-11 18:45:24,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:45:24,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:45:24,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:45:24,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:45:24,892 INFO L87 Difference]: Start difference. First operand 9072 states and 24446 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:26,561 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:45:26,942 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2020-11-11 18:45:27,196 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:45:27,489 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:45:27,845 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-11 18:45:28,222 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-11 18:45:28,638 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-11-11 18:45:29,178 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:45:29,711 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-11 18:45:30,325 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:45:30,915 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2020-11-11 18:45:32,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:45:32,093 INFO L93 Difference]: Finished difference Result 13226 states and 34869 transitions. [2020-11-11 18:45:32,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:45:32,096 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:45:32,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:45:32,112 INFO L225 Difference]: With dead ends: 13226 [2020-11-11 18:45:32,112 INFO L226 Difference]: Without dead ends: 13226 [2020-11-11 18:45:32,112 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:45:32,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13226 states. [2020-11-11 18:45:32,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13226 to 8994. [2020-11-11 18:45:32,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8992 states have (on average 2.693282918149466) internal successors, (24218), 8993 states have internal predecessors, (24218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:32,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24218 transitions. [2020-11-11 18:45:32,271 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24218 transitions. Word has length 110 [2020-11-11 18:45:32,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:45:32,271 INFO L481 AbstractCegarLoop]: Abstraction has 8994 states and 24218 transitions. [2020-11-11 18:45:32,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:32,271 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24218 transitions. [2020-11-11 18:45:32,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:45:32,281 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:45:32,282 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:45:32,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2020-11-11 18:45:32,282 INFO L429 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:45:32,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:45:32,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1096203497, now seen corresponding path program 90 times [2020-11-11 18:45:32,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:45:32,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529329808] [2020-11-11 18:45:32,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:45:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:45:33,369 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2020-11-11 18:45:33,657 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 16 [2020-11-11 18:45:33,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:45:33,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529329808] [2020-11-11 18:45:33,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:45:33,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:45:33,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802817033] [2020-11-11 18:45:33,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:45:33,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:45:33,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:45:33,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:45:33,770 INFO L87 Difference]: Start difference. First operand 8994 states and 24218 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:35,409 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:45:35,793 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2020-11-11 18:45:36,041 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:45:36,335 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:45:36,702 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-11 18:45:37,082 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-11 18:45:37,505 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-11-11 18:45:38,052 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:45:38,595 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-11 18:45:39,256 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2020-11-11 18:45:39,815 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2020-11-11 18:45:41,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:45:41,060 INFO L93 Difference]: Finished difference Result 13864 states and 36334 transitions. [2020-11-11 18:45:41,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-11 18:45:41,063 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:45:41,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:45:41,078 INFO L225 Difference]: With dead ends: 13864 [2020-11-11 18:45:41,079 INFO L226 Difference]: Without dead ends: 13864 [2020-11-11 18:45:41,079 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2020-11-11 18:45:41,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13864 states. [2020-11-11 18:45:41,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13864 to 8981. [2020-11-11 18:45:41,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8981 states, 8979 states have (on average 2.6929502171734048) internal successors, (24180), 8980 states have internal predecessors, (24180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:41,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8981 states to 8981 states and 24180 transitions. [2020-11-11 18:45:41,240 INFO L78 Accepts]: Start accepts. Automaton has 8981 states and 24180 transitions. Word has length 110 [2020-11-11 18:45:41,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:45:41,241 INFO L481 AbstractCegarLoop]: Abstraction has 8981 states and 24180 transitions. [2020-11-11 18:45:41,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:41,241 INFO L276 IsEmpty]: Start isEmpty. Operand 8981 states and 24180 transitions. [2020-11-11 18:45:41,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:45:41,249 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:45:41,249 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:45:41,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2020-11-11 18:45:41,250 INFO L429 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:45:41,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:45:41,250 INFO L82 PathProgramCache]: Analyzing trace with hash 37912691, now seen corresponding path program 91 times [2020-11-11 18:45:41,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:45:41,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649811099] [2020-11-11 18:45:41,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:45:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:45:42,711 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:45:42,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:45:42,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649811099] [2020-11-11 18:45:42,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:45:42,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:45:42,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307927719] [2020-11-11 18:45:42,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:45:42,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:45:42,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:45:42,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:45:42,827 INFO L87 Difference]: Start difference. First operand 8981 states and 24180 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:44,480 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:45:44,867 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2020-11-11 18:45:45,120 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:45:45,416 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:45:45,784 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-11 18:45:46,170 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-11 18:45:46,606 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-11-11 18:45:47,143 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-11 18:45:47,705 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:45:48,327 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2020-11-11 18:45:48,774 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-11-11 18:45:49,378 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2020-11-11 18:45:50,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:45:50,722 INFO L93 Difference]: Finished difference Result 14823 states and 38692 transitions. [2020-11-11 18:45:50,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-11 18:45:50,725 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:45:50,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:45:50,743 INFO L225 Difference]: With dead ends: 14823 [2020-11-11 18:45:50,743 INFO L226 Difference]: Without dead ends: 14823 [2020-11-11 18:45:50,743 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=448, Invalid=1532, Unknown=0, NotChecked=0, Total=1980 [2020-11-11 18:45:50,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14823 states. [2020-11-11 18:45:50,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14823 to 8968. [2020-11-11 18:45:50,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8968 states, 8966 states have (on average 2.6926165514164624) internal successors, (24142), 8967 states have internal predecessors, (24142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:50,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8968 states to 8968 states and 24142 transitions. [2020-11-11 18:45:50,916 INFO L78 Accepts]: Start accepts. Automaton has 8968 states and 24142 transitions. Word has length 110 [2020-11-11 18:45:50,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:45:50,916 INFO L481 AbstractCegarLoop]: Abstraction has 8968 states and 24142 transitions. [2020-11-11 18:45:50,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:50,916 INFO L276 IsEmpty]: Start isEmpty. Operand 8968 states and 24142 transitions. [2020-11-11 18:45:50,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:45:50,925 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:45:50,925 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:45:50,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2020-11-11 18:45:50,925 INFO L429 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:45:50,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:45:50,925 INFO L82 PathProgramCache]: Analyzing trace with hash -141564231, now seen corresponding path program 92 times [2020-11-11 18:45:50,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:45:50,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131007886] [2020-11-11 18:45:50,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:45:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:45:52,397 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:45:52,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:45:52,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131007886] [2020-11-11 18:45:52,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:45:52,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:45:52,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597143146] [2020-11-11 18:45:52,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:45:52,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:45:52,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:45:52,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:45:52,515 INFO L87 Difference]: Start difference. First operand 8968 states and 24142 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:45:54,230 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:45:54,635 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2020-11-11 18:45:54,888 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:45:55,189 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:45:55,577 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-11 18:45:55,963 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-11 18:45:56,406 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-11-11 18:45:56,885 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2020-11-11 18:45:57,371 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-11 18:45:57,922 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:45:58,588 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:45:59,048 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-11-11 18:45:59,670 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2020-11-11 18:46:01,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:46:01,102 INFO L93 Difference]: Finished difference Result 15228 states and 39823 transitions. [2020-11-11 18:46:01,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-11 18:46:01,105 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:46:01,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:46:01,122 INFO L225 Difference]: With dead ends: 15228 [2020-11-11 18:46:01,122 INFO L226 Difference]: Without dead ends: 15228 [2020-11-11 18:46:01,123 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=477, Invalid=1593, Unknown=0, NotChecked=0, Total=2070 [2020-11-11 18:46:01,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15228 states. [2020-11-11 18:46:01,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15228 to 8942. [2020-11-11 18:46:01,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8942 states, 8940 states have (on average 2.691946308724832) internal successors, (24066), 8941 states have internal predecessors, (24066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:46:01,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8942 states to 8942 states and 24066 transitions. [2020-11-11 18:46:01,296 INFO L78 Accepts]: Start accepts. Automaton has 8942 states and 24066 transitions. Word has length 110 [2020-11-11 18:46:01,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:46:01,296 INFO L481 AbstractCegarLoop]: Abstraction has 8942 states and 24066 transitions. [2020-11-11 18:46:01,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:46:01,296 INFO L276 IsEmpty]: Start isEmpty. Operand 8942 states and 24066 transitions. [2020-11-11 18:46:01,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:46:01,304 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:46:01,304 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:46:01,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2020-11-11 18:46:01,305 INFO L429 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:46:01,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:46:01,305 INFO L82 PathProgramCache]: Analyzing trace with hash 425668955, now seen corresponding path program 93 times [2020-11-11 18:46:01,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:46:01,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888702183] [2020-11-11 18:46:01,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:46:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:46:02,843 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:46:02,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:46:02,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888702183] [2020-11-11 18:46:02,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:46:02,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:46:02,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282104947] [2020-11-11 18:46:02,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:46:02,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:46:02,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:46:02,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:46:02,961 INFO L87 Difference]: Start difference. First operand 8942 states and 24066 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:46:04,703 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:46:05,107 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2020-11-11 18:46:05,362 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:46:05,672 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:46:06,073 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-11 18:46:06,460 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-11 18:46:06,935 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-11-11 18:46:07,384 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-11-11 18:46:07,746 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2020-11-11 18:46:08,207 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-11 18:46:08,787 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2020-11-11 18:46:09,465 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2020-11-11 18:46:09,917 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-11-11 18:46:10,568 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2020-11-11 18:46:12,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:46:12,042 INFO L93 Difference]: Finished difference Result 15633 states and 40954 transitions. [2020-11-11 18:46:12,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-11-11 18:46:12,045 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:46:12,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:46:12,063 INFO L225 Difference]: With dead ends: 15633 [2020-11-11 18:46:12,064 INFO L226 Difference]: Without dead ends: 15633 [2020-11-11 18:46:12,064 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=505, Invalid=1657, Unknown=0, NotChecked=0, Total=2162 [2020-11-11 18:46:12,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15633 states. [2020-11-11 18:46:12,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15633 to 8929. [2020-11-11 18:46:12,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8929 states, 8927 states have (on average 2.691609723311303) internal successors, (24028), 8928 states have internal predecessors, (24028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:46:12,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8929 states to 8929 states and 24028 transitions. [2020-11-11 18:46:12,238 INFO L78 Accepts]: Start accepts. Automaton has 8929 states and 24028 transitions. Word has length 110 [2020-11-11 18:46:12,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:46:12,238 INFO L481 AbstractCegarLoop]: Abstraction has 8929 states and 24028 transitions. [2020-11-11 18:46:12,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:46:12,239 INFO L276 IsEmpty]: Start isEmpty. Operand 8929 states and 24028 transitions. [2020-11-11 18:46:12,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:46:12,247 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:46:12,247 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:46:12,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2020-11-11 18:46:12,247 INFO L429 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:46:12,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:46:12,248 INFO L82 PathProgramCache]: Analyzing trace with hash -229092561, now seen corresponding path program 94 times [2020-11-11 18:46:12,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:46:12,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103327563] [2020-11-11 18:46:12,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:46:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:46:13,856 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2020-11-11 18:46:13,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:46:13,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103327563] [2020-11-11 18:46:13,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:46:13,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:46:13,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301477023] [2020-11-11 18:46:13,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:46:13,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:46:13,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:46:13,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:46:13,976 INFO L87 Difference]: Start difference. First operand 8929 states and 24028 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:46:15,742 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-11 18:46:16,152 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2020-11-11 18:46:16,425 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-11 18:46:16,740 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-11-11 18:46:17,137 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-11 18:46:17,566 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-11-11 18:46:17,975 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-11-11 18:46:18,311 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-11-11 18:46:18,754 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2020-11-11 18:46:19,125 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2020-11-11 18:46:19,639 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-11-11 18:46:20,242 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-11-11 18:46:20,940 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-11-11 18:46:21,420 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2020-11-11 18:46:22,123 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2020-11-11 18:46:23,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:46:23,517 INFO L93 Difference]: Finished difference Result 11600 states and 30402 transitions. [2020-11-11 18:46:23,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-11 18:46:23,520 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:46:23,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:46:23,533 INFO L225 Difference]: With dead ends: 11600 [2020-11-11 18:46:23,533 INFO L226 Difference]: Without dead ends: 11600 [2020-11-11 18:46:23,534 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=532, Invalid=1724, Unknown=0, NotChecked=0, Total=2256 [2020-11-11 18:46:23,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11600 states. [2020-11-11 18:46:23,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11600 to 7213. [2020-11-11 18:46:23,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7213 states, 7211 states have (on average 2.660796006101789) internal successors, (19187), 7212 states have internal predecessors, (19187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:46:23,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7213 states to 7213 states and 19187 transitions. [2020-11-11 18:46:23,665 INFO L78 Accepts]: Start accepts. Automaton has 7213 states and 19187 transitions. Word has length 110 [2020-11-11 18:46:23,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:46:23,665 INFO L481 AbstractCegarLoop]: Abstraction has 7213 states and 19187 transitions. [2020-11-11 18:46:23,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:46:23,666 INFO L276 IsEmpty]: Start isEmpty. Operand 7213 states and 19187 transitions. [2020-11-11 18:46:23,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:46:23,672 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:46:23,673 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:46:23,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2020-11-11 18:46:23,673 INFO L429 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:46:23,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:46:23,673 INFO L82 PathProgramCache]: Analyzing trace with hash -513895975, now seen corresponding path program 22 times [2020-11-11 18:46:23,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:46:23,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089200553] [2020-11-11 18:46:23,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:46:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:46:24,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:46:24,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089200553] [2020-11-11 18:46:24,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:46:24,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-11 18:46:24,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532779205] [2020-11-11 18:46:24,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-11 18:46:24,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:46:24,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-11 18:46:24,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2020-11-11 18:46:24,890 INFO L87 Difference]: Start difference. First operand 7213 states and 19187 transitions. Second operand has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:46:32,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:46:32,384 INFO L93 Difference]: Finished difference Result 14056 states and 37804 transitions. [2020-11-11 18:46:32,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-11-11 18:46:32,387 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:46:32,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:46:32,404 INFO L225 Difference]: With dead ends: 14056 [2020-11-11 18:46:32,404 INFO L226 Difference]: Without dead ends: 13904 [2020-11-11 18:46:32,405 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=873, Invalid=1883, Unknown=0, NotChecked=0, Total=2756 [2020-11-11 18:46:32,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13904 states. [2020-11-11 18:46:32,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13904 to 9812. [2020-11-11 18:46:32,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9812 states, 9810 states have (on average 2.6943934760448522) internal successors, (26432), 9811 states have internal predecessors, (26432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:46:32,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9812 states to 9812 states and 26432 transitions. [2020-11-11 18:46:32,585 INFO L78 Accepts]: Start accepts. Automaton has 9812 states and 26432 transitions. Word has length 110 [2020-11-11 18:46:32,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:46:32,585 INFO L481 AbstractCegarLoop]: Abstraction has 9812 states and 26432 transitions. [2020-11-11 18:46:32,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:46:32,586 INFO L276 IsEmpty]: Start isEmpty. Operand 9812 states and 26432 transitions. [2020-11-11 18:46:32,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:46:32,595 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:46:32,595 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:46:32,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2020-11-11 18:46:32,595 INFO L429 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:46:32,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:46:32,596 INFO L82 PathProgramCache]: Analyzing trace with hash 2130861647, now seen corresponding path program 95 times [2020-11-11 18:46:32,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:46:32,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231499885] [2020-11-11 18:46:32,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:46:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:46:33,686 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 17 [2020-11-11 18:46:33,912 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 17 [2020-11-11 18:46:34,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:46:34,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231499885] [2020-11-11 18:46:34,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:46:34,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-11 18:46:34,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72713576] [2020-11-11 18:46:34,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-11 18:46:34,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:46:34,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-11 18:46:34,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2020-11-11 18:46:34,132 INFO L87 Difference]: Start difference. First operand 9812 states and 26432 transitions. Second operand has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:46:36,078 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 21 [2020-11-11 18:46:36,317 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 26 [2020-11-11 18:46:36,645 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2020-11-11 18:46:37,011 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-11 18:46:37,515 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2020-11-11 18:46:37,927 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2020-11-11 18:46:38,436 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-11 18:46:39,104 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-11-11 18:46:39,698 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2020-11-11 18:46:40,373 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 72 [2020-11-11 18:46:41,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:46:41,575 INFO L93 Difference]: Finished difference Result 22463 states and 59442 transitions. [2020-11-11 18:46:41,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-11-11 18:46:41,578 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2020-11-11 18:46:41,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:46:41,603 INFO L225 Difference]: With dead ends: 22463 [2020-11-11 18:46:41,603 INFO L226 Difference]: Without dead ends: 22463 [2020-11-11 18:46:41,603 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=400, Invalid=1406, Unknown=0, NotChecked=0, Total=1806 [2020-11-11 18:46:41,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22463 states. [2020-11-11 18:46:41,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22463 to 9836. [2020-11-11 18:46:41,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9836 states, 9834 states have (on average 2.6926988000813505) internal successors, (26480), 9835 states have internal predecessors, (26480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:46:41,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9836 states to 9836 states and 26480 transitions. [2020-11-11 18:46:41,846 INFO L78 Accepts]: Start accepts. Automaton has 9836 states and 26480 transitions. Word has length 110 [2020-11-11 18:46:41,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:46:41,846 INFO L481 AbstractCegarLoop]: Abstraction has 9836 states and 26480 transitions. [2020-11-11 18:46:41,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.0) internal successors, (110), 22 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:46:41,847 INFO L276 IsEmpty]: Start isEmpty. Operand 9836 states and 26480 transitions. [2020-11-11 18:46:41,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-11 18:46:41,857 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:46:41,857 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:46:41,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2020-11-11 18:46:41,857 INFO L429 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:46:41,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:46:41,858 INFO L82 PathProgramCache]: Analyzing trace with hash 2061200593, now seen corresponding path program 96 times [2020-11-11 18:46:41,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:46:41,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953364986] [2020-11-11 18:46:41,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Received shutdown request... [2020-11-11 18:46:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2020-11-11 18:46:41,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1774693378] [2020-11-11 18:46:41,878 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-11 18:46:42,021 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2020-11-11 18:46:42,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-11 18:46:42,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 48 conjunts are in the unsatisfiable core [2020-11-11 18:46:42,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-11 18:46:42,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable122 [2020-11-11 18:46:42,267 WARN L546 AbstractCegarLoop]: Verification canceled [2020-11-11 18:46:42,273 WARN L250 ceAbstractionStarter]: Timeout [2020-11-11 18:46:42,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:46:42 BasicIcfg [2020-11-11 18:46:42,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 18:46:42,274 INFO L168 Benchmark]: Toolchain (without parser) took 774885.22 ms. Allocated memory was 323.0 MB in the beginning and 3.2 GB in the end (delta: 2.8 GB). Free memory was 295.7 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2020-11-11 18:46:42,274 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 251.7 MB. Free memory was 225.8 MB in the beginning and 225.8 MB in the end (delta: 68.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:46:42,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1413.14 ms. Allocated memory is still 323.0 MB. Free memory was 295.0 MB in the beginning and 177.6 MB in the end (delta: 117.4 MB). Peak memory consumption was 118.9 MB. Max. memory is 16.0 GB. [2020-11-11 18:46:42,275 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.71 ms. Allocated memory is still 323.0 MB. Free memory was 177.6 MB in the beginning and 174.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:46:42,275 INFO L168 Benchmark]: Boogie Preprocessor took 53.64 ms. Allocated memory is still 323.0 MB. Free memory was 173.4 MB in the beginning and 171.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:46:42,275 INFO L168 Benchmark]: RCFGBuilder took 873.56 ms. Allocated memory is still 323.0 MB. Free memory was 171.3 MB in the beginning and 121.0 MB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.0 GB. [2020-11-11 18:46:42,275 INFO L168 Benchmark]: TraceAbstraction took 772409.61 ms. Allocated memory was 323.0 MB in the beginning and 3.2 GB in the end (delta: 2.8 GB). Free memory was 121.0 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.4 GB. Max. memory is 16.0 GB. [2020-11-11 18:46:42,276 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 251.7 MB. Free memory was 225.8 MB in the beginning and 225.8 MB in the end (delta: 68.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1413.14 ms. Allocated memory is still 323.0 MB. Free memory was 295.0 MB in the beginning and 177.6 MB in the end (delta: 117.4 MB). Peak memory consumption was 118.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 122.71 ms. Allocated memory is still 323.0 MB. Free memory was 177.6 MB in the beginning and 174.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 53.64 ms. Allocated memory is still 323.0 MB. Free memory was 173.4 MB in the beginning and 171.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 873.56 ms. Allocated memory is still 323.0 MB. Free memory was 171.3 MB in the beginning and 121.0 MB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 772409.61 ms. Allocated memory was 323.0 MB in the beginning and 3.2 GB in the end (delta: 2.8 GB). Free memory was 121.0 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.4 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1691]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1691). Cancelled while BasicCegarLoop was analyzing trace of length 111 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. - TimeoutResultAtElement [Line: 1691]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1691). Cancelled while BasicCegarLoop was analyzing trace of length 111 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. - TimeoutResultAtElement [Line: 1691]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1691). Cancelled while BasicCegarLoop was analyzing trace of length 111 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. - TimeoutResultAtElement [Line: 1691]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1691). Cancelled while BasicCegarLoop was analyzing trace of length 111 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. - TimeoutResultAtElement [Line: 1691]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1691). Cancelled while BasicCegarLoop was analyzing trace of length 111 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. - TimeoutResultAtElement [Line: 1691]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1691). Cancelled while BasicCegarLoop was analyzing trace of length 111 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 158 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 772.1s, OverallIterations: 123, TraceHistogramMax: 1, AutomataDifference: 630.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, HoareTripleCheckerStatistics: 44930 SDtfs, 158795 SDslu, 370076 SDs, 0 SdLazy, 127670 SolverSat, 5863 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 136.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5676 GetRequests, 305 SyntacticMatches, 87 SemanticMatches, 5284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23711 ImplicationChecksByTransitivity, 478.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10576occurred in iteration=57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 24.3s AutomataMinimizationTime, 122 MinimizatonAttempts, 622228 StatesRemovedByMinimization, 121 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 108.1s InterpolantComputationTime, 13158 NumberOfCodeBlocks, 13158 NumberOfCodeBlocksAsserted, 122 NumberOfCheckSat, 13036 ConstructedInterpolants, 0 QuantifiedInterpolants, 10209107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 122 InterpolantComputations, 122 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown