java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:36:24,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:36:24,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:36:24,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:36:24,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:36:24,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:36:24,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:36:24,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:36:24,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:36:24,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:36:24,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:36:24,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:36:24,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:36:24,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:36:24,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:36:24,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:36:24,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:36:24,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:36:24,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:36:24,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:36:24,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:36:24,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:36:24,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:36:24,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:36:24,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:36:24,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:36:24,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:36:24,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:36:24,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:36:24,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:36:24,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:36:24,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:36:24,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:36:24,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:36:24,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:36:24,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:36:24,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:36:24,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:36:24,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:36:24,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:36:24,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:36:24,784 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:36:24,817 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:36:24,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:36:24,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:36:24,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:36:24,823 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:36:24,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:36:24,823 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:36:24,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:36:24,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:36:24,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:36:24,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:36:24,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:36:24,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:36:24,824 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:36:24,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:36:24,825 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:36:24,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:36:24,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:36:24,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:36:24,825 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:36:24,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:36:24,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:36:24,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:36:24,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:36:24,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:36:24,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:36:24,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:36:24,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:36:24,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:36:25,166 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:36:25,187 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:36:25,190 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:36:25,192 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:36:25,192 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:36:25,193 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product37.cil.c [2019-10-13 19:36:25,265 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13d43d016/a223773c19754f8e96de4aac3003137e/FLAG818247cf0 [2019-10-13 19:36:25,740 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:36:25,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product37.cil.c [2019-10-13 19:36:25,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13d43d016/a223773c19754f8e96de4aac3003137e/FLAG818247cf0 [2019-10-13 19:36:26,032 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13d43d016/a223773c19754f8e96de4aac3003137e [2019-10-13 19:36:26,042 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:36:26,044 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:36:26,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:36:26,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:36:26,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:36:26,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:36:26" (1/1) ... [2019-10-13 19:36:26,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9061149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:26, skipping insertion in model container [2019-10-13 19:36:26,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:36:26" (1/1) ... [2019-10-13 19:36:26,064 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:36:26,115 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:36:26,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:36:26,642 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:36:26,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:36:26,756 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:36:26,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:26 WrapperNode [2019-10-13 19:36:26,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:36:26,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:36:26,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:36:26,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:36:26,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:26" (1/1) ... [2019-10-13 19:36:26,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:26" (1/1) ... [2019-10-13 19:36:26,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:26" (1/1) ... [2019-10-13 19:36:26,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:26" (1/1) ... [2019-10-13 19:36:26,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:26" (1/1) ... [2019-10-13 19:36:26,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:26" (1/1) ... [2019-10-13 19:36:26,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:26" (1/1) ... [2019-10-13 19:36:26,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:36:26,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:36:26,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:36:26,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:36:26,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:26" (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 [2019-10-13 19:36:26,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:36:26,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:36:26,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:36:26,904 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:36:26,904 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 19:36:26,904 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:36:26,904 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 19:36:26,905 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 19:36:26,905 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 19:36:26,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 19:36:26,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 19:36:26,905 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 19:36:26,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 19:36:26,906 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:36:26,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-13 19:36:26,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-13 19:36:26,906 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 19:36:26,906 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 19:36:26,907 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 19:36:26,907 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 19:36:26,907 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 19:36:26,907 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 19:36:26,907 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 19:36:26,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:36:26,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:36:26,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:36:26,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:36:26,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:36:26,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:36:26,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:36:26,909 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:36:26,909 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:36:26,909 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:36:26,909 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:36:26,909 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:36:26,909 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:36:26,910 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:36:26,910 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:36:26,910 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:36:26,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:36:26,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:36:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:36:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 19:36:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 19:36:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 19:36:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 19:36:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:36:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 19:36:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 19:36:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 19:36:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 19:36:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-13 19:36:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 19:36:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 19:36:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 19:36:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:36:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 19:36:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:36:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 19:36:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 19:36:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:36:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:36:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:36:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-13 19:36:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 19:36:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:36:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:36:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:36:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:36:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:36:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:36:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:36:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:36:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:36:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:36:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:36:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:36:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:36:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:36:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:36:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:36:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:36:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:36:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:36:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:36:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:36:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:36:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:36:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:36:26,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:36:26,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:36:26,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:36:27,990 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:36:27,990 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:36:27,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:36:27 BoogieIcfgContainer [2019-10-13 19:36:27,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:36:27,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:36:27,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:36:27,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:36:27,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:36:26" (1/3) ... [2019-10-13 19:36:27,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114f0c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:36:27, skipping insertion in model container [2019-10-13 19:36:27,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:26" (2/3) ... [2019-10-13 19:36:27,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114f0c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:36:27, skipping insertion in model container [2019-10-13 19:36:27,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:36:27" (3/3) ... [2019-10-13 19:36:28,001 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product37.cil.c [2019-10-13 19:36:28,011 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:36:28,019 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:36:28,031 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:36:28,058 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:36:28,059 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:36:28,059 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:36:28,059 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:36:28,059 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:36:28,059 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:36:28,060 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:36:28,060 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:36:28,083 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2019-10-13 19:36:28,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 19:36:28,094 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:28,096 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:36:28,098 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:28,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:28,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1991715745, now seen corresponding path program 1 times [2019-10-13 19:36:28,115 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:28,116 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603357186] [2019-10-13 19:36:28,118 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:28,118 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:28,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:28,876 WARN L191 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:28,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:28,988 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603357186] [2019-10-13 19:36:28,993 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:28,994 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:36:28,994 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521802738] [2019-10-13 19:36:29,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:36:29,009 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:29,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:36:29,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:36:29,028 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 4 states. [2019-10-13 19:36:30,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:36:30,225 INFO L93 Difference]: Finished difference Result 286 states and 375 transitions. [2019-10-13 19:36:30,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:36:30,227 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2019-10-13 19:36:30,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:36:30,242 INFO L225 Difference]: With dead ends: 286 [2019-10-13 19:36:30,242 INFO L226 Difference]: Without dead ends: 159 [2019-10-13 19:36:30,248 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:36:30,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-10-13 19:36:30,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 128. [2019-10-13 19:36:30,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-13 19:36:30,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 151 transitions. [2019-10-13 19:36:30,376 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 151 transitions. Word has length 51 [2019-10-13 19:36:30,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:36:30,377 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 151 transitions. [2019-10-13 19:36:30,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:36:30,377 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 151 transitions. [2019-10-13 19:36:30,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 19:36:30,389 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:30,390 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:36:30,390 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:30,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:30,391 INFO L82 PathProgramCache]: Analyzing trace with hash -392602955, now seen corresponding path program 1 times [2019-10-13 19:36:30,391 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:30,392 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845362415] [2019-10-13 19:36:30,392 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:30,392 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:30,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,789 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:30,862 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845362415] [2019-10-13 19:36:30,863 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:30,863 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:36:30,865 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135304672] [2019-10-13 19:36:30,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:36:30,867 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:30,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:36:30,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:36:30,868 INFO L87 Difference]: Start difference. First operand 128 states and 151 transitions. Second operand 5 states. [2019-10-13 19:36:31,436 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:32,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:36:32,409 INFO L93 Difference]: Finished difference Result 231 states and 286 transitions. [2019-10-13 19:36:32,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 19:36:32,410 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-10-13 19:36:32,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:36:32,413 INFO L225 Difference]: With dead ends: 231 [2019-10-13 19:36:32,413 INFO L226 Difference]: Without dead ends: 149 [2019-10-13 19:36:32,415 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:36:32,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-10-13 19:36:32,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 119. [2019-10-13 19:36:32,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-10-13 19:36:32,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 139 transitions. [2019-10-13 19:36:32,468 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 139 transitions. Word has length 52 [2019-10-13 19:36:32,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:36:32,468 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 139 transitions. [2019-10-13 19:36:32,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:36:32,469 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 139 transitions. [2019-10-13 19:36:32,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-13 19:36:32,470 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:32,471 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:36:32,471 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:32,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:32,472 INFO L82 PathProgramCache]: Analyzing trace with hash -368031557, now seen corresponding path program 1 times [2019-10-13 19:36:32,472 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:32,472 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085952223] [2019-10-13 19:36:32,472 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:32,472 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:32,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:32,786 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:32,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:32,866 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085952223] [2019-10-13 19:36:32,866 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:32,866 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:36:32,866 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653942151] [2019-10-13 19:36:32,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:36:32,868 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:32,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:36:32,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:36:32,869 INFO L87 Difference]: Start difference. First operand 119 states and 139 transitions. Second operand 5 states. [2019-10-13 19:36:33,241 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:36:34,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:36:34,116 INFO L93 Difference]: Finished difference Result 240 states and 301 transitions. [2019-10-13 19:36:34,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 19:36:34,117 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2019-10-13 19:36:34,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:36:34,120 INFO L225 Difference]: With dead ends: 240 [2019-10-13 19:36:34,120 INFO L226 Difference]: Without dead ends: 149 [2019-10-13 19:36:34,121 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:36:34,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-10-13 19:36:34,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 119. [2019-10-13 19:36:34,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-10-13 19:36:34,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2019-10-13 19:36:34,148 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 56 [2019-10-13 19:36:34,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:36:34,148 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2019-10-13 19:36:34,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:36:34,149 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2019-10-13 19:36:34,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-13 19:36:34,150 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:34,150 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:36:34,151 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:34,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:34,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1230357120, now seen corresponding path program 1 times [2019-10-13 19:36:34,151 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:34,152 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106272074] [2019-10-13 19:36:34,152 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:34,152 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:34,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:34,495 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:34,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:34,626 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106272074] [2019-10-13 19:36:34,626 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:34,626 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:36:34,627 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846062154] [2019-10-13 19:36:34,627 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:36:34,628 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:34,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:36:34,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:36:34,628 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand 7 states. [2019-10-13 19:36:35,025 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:36:36,383 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:37,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:36:37,026 INFO L93 Difference]: Finished difference Result 334 states and 423 transitions. [2019-10-13 19:36:37,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:36:37,027 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2019-10-13 19:36:37,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:36:37,030 INFO L225 Difference]: With dead ends: 334 [2019-10-13 19:36:37,030 INFO L226 Difference]: Without dead ends: 243 [2019-10-13 19:36:37,032 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:36:37,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-10-13 19:36:37,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 197. [2019-10-13 19:36:37,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2019-10-13 19:36:37,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 227 transitions. [2019-10-13 19:36:37,082 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 227 transitions. Word has length 69 [2019-10-13 19:36:37,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:36:37,082 INFO L462 AbstractCegarLoop]: Abstraction has 197 states and 227 transitions. [2019-10-13 19:36:37,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:36:37,082 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 227 transitions. [2019-10-13 19:36:37,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-13 19:36:37,084 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:37,084 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:36:37,084 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:37,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:37,085 INFO L82 PathProgramCache]: Analyzing trace with hash 810215565, now seen corresponding path program 1 times [2019-10-13 19:36:37,085 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:37,085 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129036663] [2019-10-13 19:36:37,085 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:37,085 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:37,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:37,408 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:37,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:37,554 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129036663] [2019-10-13 19:36:37,554 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:37,554 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:36:37,554 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513470846] [2019-10-13 19:36:37,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:36:37,556 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:37,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:36:37,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:36:37,557 INFO L87 Difference]: Start difference. First operand 197 states and 227 transitions. Second operand 9 states. [2019-10-13 19:36:38,065 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:36:39,359 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:39,653 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:39,938 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:40,177 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:36:41,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:36:41,365 INFO L93 Difference]: Finished difference Result 582 states and 737 transitions. [2019-10-13 19:36:41,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 19:36:41,369 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2019-10-13 19:36:41,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:36:41,375 INFO L225 Difference]: With dead ends: 582 [2019-10-13 19:36:41,375 INFO L226 Difference]: Without dead ends: 413 [2019-10-13 19:36:41,376 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2019-10-13 19:36:41,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-10-13 19:36:41,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 342. [2019-10-13 19:36:41,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2019-10-13 19:36:41,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 394 transitions. [2019-10-13 19:36:41,481 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 394 transitions. Word has length 83 [2019-10-13 19:36:41,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:36:41,482 INFO L462 AbstractCegarLoop]: Abstraction has 342 states and 394 transitions. [2019-10-13 19:36:41,482 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:36:41,482 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 394 transitions. [2019-10-13 19:36:41,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-13 19:36:41,483 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:41,484 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:36:41,484 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:41,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:41,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1817856655, now seen corresponding path program 1 times [2019-10-13 19:36:41,484 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:41,485 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661727949] [2019-10-13 19:36:41,485 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:41,485 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:41,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:41,802 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:41,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:41,933 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661727949] [2019-10-13 19:36:41,933 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:41,934 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:36:41,934 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831905796] [2019-10-13 19:36:41,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:36:41,935 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:41,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:36:41,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:36:41,936 INFO L87 Difference]: Start difference. First operand 342 states and 394 transitions. Second operand 10 states. [2019-10-13 19:36:42,673 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:36:44,039 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:44,306 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:36:44,594 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:44,896 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:46,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:36:46,079 INFO L93 Difference]: Finished difference Result 762 states and 947 transitions. [2019-10-13 19:36:46,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-13 19:36:46,080 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2019-10-13 19:36:46,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:36:46,085 INFO L225 Difference]: With dead ends: 762 [2019-10-13 19:36:46,085 INFO L226 Difference]: Without dead ends: 448 [2019-10-13 19:36:46,086 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=194, Invalid=508, Unknown=0, NotChecked=0, Total=702 [2019-10-13 19:36:46,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2019-10-13 19:36:46,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 341. [2019-10-13 19:36:46,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2019-10-13 19:36:46,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 391 transitions. [2019-10-13 19:36:46,158 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 391 transitions. Word has length 87 [2019-10-13 19:36:46,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:36:46,159 INFO L462 AbstractCegarLoop]: Abstraction has 341 states and 391 transitions. [2019-10-13 19:36:46,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:36:46,162 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 391 transitions. [2019-10-13 19:36:46,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 19:36:46,164 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:46,164 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:36:46,164 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:46,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:46,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1046149773, now seen corresponding path program 1 times [2019-10-13 19:36:46,165 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:46,165 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254477786] [2019-10-13 19:36:46,165 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:46,165 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:46,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:46,437 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:46,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:46,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:46,584 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254477786] [2019-10-13 19:36:46,585 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:46,585 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:36:46,585 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767680348] [2019-10-13 19:36:46,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:36:46,587 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:46,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:36:46,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:36:46,587 INFO L87 Difference]: Start difference. First operand 341 states and 391 transitions. Second operand 10 states. [2019-10-13 19:36:47,809 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:48,082 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-13 19:36:48,394 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:48,690 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:49,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:36:49,853 INFO L93 Difference]: Finished difference Result 765 states and 956 transitions. [2019-10-13 19:36:49,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 19:36:49,854 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2019-10-13 19:36:49,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:36:49,859 INFO L225 Difference]: With dead ends: 765 [2019-10-13 19:36:49,859 INFO L226 Difference]: Without dead ends: 452 [2019-10-13 19:36:49,861 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:36:49,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2019-10-13 19:36:49,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 351. [2019-10-13 19:36:49,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-10-13 19:36:49,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 401 transitions. [2019-10-13 19:36:49,959 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 401 transitions. Word has length 88 [2019-10-13 19:36:49,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:36:49,959 INFO L462 AbstractCegarLoop]: Abstraction has 351 states and 401 transitions. [2019-10-13 19:36:49,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:36:49,960 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 401 transitions. [2019-10-13 19:36:49,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 19:36:49,962 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:49,962 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:36:49,962 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:49,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:49,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1747749647, now seen corresponding path program 1 times [2019-10-13 19:36:49,963 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:49,963 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495291016] [2019-10-13 19:36:49,963 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:49,963 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:49,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:50,270 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:50,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:50,429 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495291016] [2019-10-13 19:36:50,429 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:50,430 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:36:50,430 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293396802] [2019-10-13 19:36:50,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:36:50,430 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:50,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:36:50,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:36:50,435 INFO L87 Difference]: Start difference. First operand 351 states and 401 transitions. Second operand 12 states. [2019-10-13 19:36:51,136 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:51,410 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:51,679 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:52,435 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:52,723 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:52,999 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:54,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:36:54,314 INFO L93 Difference]: Finished difference Result 789 states and 998 transitions. [2019-10-13 19:36:54,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:36:54,315 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2019-10-13 19:36:54,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:36:54,320 INFO L225 Difference]: With dead ends: 789 [2019-10-13 19:36:54,320 INFO L226 Difference]: Without dead ends: 466 [2019-10-13 19:36:54,322 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2019-10-13 19:36:54,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2019-10-13 19:36:54,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 359. [2019-10-13 19:36:54,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2019-10-13 19:36:54,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 409 transitions. [2019-10-13 19:36:54,387 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 409 transitions. Word has length 88 [2019-10-13 19:36:54,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:36:54,388 INFO L462 AbstractCegarLoop]: Abstraction has 359 states and 409 transitions. [2019-10-13 19:36:54,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:36:54,388 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 409 transitions. [2019-10-13 19:36:54,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 19:36:54,390 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:54,390 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:36:54,390 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:54,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:54,390 INFO L82 PathProgramCache]: Analyzing trace with hash -821736752, now seen corresponding path program 1 times [2019-10-13 19:36:54,391 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:54,391 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210093554] [2019-10-13 19:36:54,391 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:54,391 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:54,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:54,713 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:54,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:54,844 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210093554] [2019-10-13 19:36:54,845 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:54,845 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:36:54,845 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357059084] [2019-10-13 19:36:54,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:36:54,846 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:54,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:36:54,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:36:54,846 INFO L87 Difference]: Start difference. First operand 359 states and 409 transitions. Second operand 8 states. [2019-10-13 19:36:55,278 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:36:55,837 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:36:58,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:36:58,073 INFO L93 Difference]: Finished difference Result 1108 states and 1449 transitions. [2019-10-13 19:36:58,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-13 19:36:58,073 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2019-10-13 19:36:58,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:36:58,078 INFO L225 Difference]: With dead ends: 1108 [2019-10-13 19:36:58,079 INFO L226 Difference]: Without dead ends: 777 [2019-10-13 19:36:58,081 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2019-10-13 19:36:58,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2019-10-13 19:36:58,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 645. [2019-10-13 19:36:58,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2019-10-13 19:36:58,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 763 transitions. [2019-10-13 19:36:58,184 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 763 transitions. Word has length 88 [2019-10-13 19:36:58,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:36:58,185 INFO L462 AbstractCegarLoop]: Abstraction has 645 states and 763 transitions. [2019-10-13 19:36:58,185 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:36:58,185 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 763 transitions. [2019-10-13 19:36:58,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-13 19:36:58,187 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:58,187 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:36:58,187 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:58,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:58,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1708334166, now seen corresponding path program 1 times [2019-10-13 19:36:58,188 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:58,188 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797631338] [2019-10-13 19:36:58,188 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:58,189 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:58,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:58,461 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:58,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:58,549 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797631338] [2019-10-13 19:36:58,550 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:58,550 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:36:58,550 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566137135] [2019-10-13 19:36:58,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:36:58,551 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:58,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:36:58,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:36:58,551 INFO L87 Difference]: Start difference. First operand 645 states and 763 transitions. Second operand 8 states. [2019-10-13 19:36:59,120 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:01,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:01,091 INFO L93 Difference]: Finished difference Result 1272 states and 1654 transitions. [2019-10-13 19:37:01,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-13 19:37:01,091 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2019-10-13 19:37:01,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:01,099 INFO L225 Difference]: With dead ends: 1272 [2019-10-13 19:37:01,099 INFO L226 Difference]: Without dead ends: 1269 [2019-10-13 19:37:01,100 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2019-10-13 19:37:01,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2019-10-13 19:37:01,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1071. [2019-10-13 19:37:01,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1071 states. [2019-10-13 19:37:01,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1280 transitions. [2019-10-13 19:37:01,351 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1280 transitions. Word has length 92 [2019-10-13 19:37:01,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:01,351 INFO L462 AbstractCegarLoop]: Abstraction has 1071 states and 1280 transitions. [2019-10-13 19:37:01,351 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:37:01,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1280 transitions. [2019-10-13 19:37:01,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 19:37:01,356 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:01,357 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:01,357 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:01,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:01,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1546611492, now seen corresponding path program 1 times [2019-10-13 19:37:01,357 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:01,358 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143052738] [2019-10-13 19:37:01,358 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:01,358 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:01,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,721 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:02,038 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 19:37:02,039 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143052738] [2019-10-13 19:37:02,039 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127477632] [2019-10-13 19:37:02,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-10-13 19:37:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:02,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-13 19:37:02,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:37:02,541 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-13 19:37:02,541 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-13 19:37:02,542 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 24 [2019-10-13 19:37:02,542 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708599323] [2019-10-13 19:37:02,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:37:02,543 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:02,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:37:02,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2019-10-13 19:37:02,544 INFO L87 Difference]: Start difference. First operand 1071 states and 1280 transitions. Second operand 8 states. [2019-10-13 19:37:03,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:03,072 INFO L93 Difference]: Finished difference Result 1931 states and 2290 transitions. [2019-10-13 19:37:03,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:37:03,072 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 150 [2019-10-13 19:37:03,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:03,079 INFO L225 Difference]: With dead ends: 1931 [2019-10-13 19:37:03,079 INFO L226 Difference]: Without dead ends: 888 [2019-10-13 19:37:03,083 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2019-10-13 19:37:03,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2019-10-13 19:37:03,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 888. [2019-10-13 19:37:03,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 888 states. [2019-10-13 19:37:03,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1015 transitions. [2019-10-13 19:37:03,309 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1015 transitions. Word has length 150 [2019-10-13 19:37:03,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:03,310 INFO L462 AbstractCegarLoop]: Abstraction has 888 states and 1015 transitions. [2019-10-13 19:37:03,310 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:37:03,311 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1015 transitions. [2019-10-13 19:37:03,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 19:37:03,314 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:03,314 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:03,529 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:37:03,529 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:03,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:03,530 INFO L82 PathProgramCache]: Analyzing trace with hash 182941043, now seen corresponding path program 1 times [2019-10-13 19:37:03,530 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:03,530 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860092518] [2019-10-13 19:37:03,530 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:03,531 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:03,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat