/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:13:00,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:13:00,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:13:00,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:13:00,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:13:00,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:13:00,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:13:00,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:13:00,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:13:00,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:13:00,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:13:00,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:13:00,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:13:00,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:13:00,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:13:00,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:13:00,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:13:00,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:13:00,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:13:00,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:13:00,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:13:00,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:13:00,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:13:00,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:13:00,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:13:00,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:13:00,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:13:00,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:13:00,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:13:00,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:13:00,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:13:00,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:13:00,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:13:00,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:13:00,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:13:00,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:13:00,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:13:00,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:13:00,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:13:00,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:13:00,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:13:00,905 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:13:00,949 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:13:00,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:13:00,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:13:00,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:13:00,951 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:13:00,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:13:00,952 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:13:00,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:13:00,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:13:00,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:13:00,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:13:00,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:13:00,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:13:00,954 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:13:00,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:13:00,955 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:13:00,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:13:00,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:13:00,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:13:00,956 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:13:00,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:13:00,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:13:00,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:13:00,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:13:00,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:13:00,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:13:00,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:13:00,957 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:13:00,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:13:01,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:13:01,339 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:13:01,343 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:13:01,344 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:13:01,344 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:13:01,345 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2020-10-16 12:13:01,426 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b37b65972/8ddad4f9389a4db881339bbef0e39174/FLAGe194c9c3a [2020-10-16 12:13:02,023 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:13:02,025 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2020-10-16 12:13:02,055 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b37b65972/8ddad4f9389a4db881339bbef0e39174/FLAGe194c9c3a [2020-10-16 12:13:02,252 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b37b65972/8ddad4f9389a4db881339bbef0e39174 [2020-10-16 12:13:02,261 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:13:02,262 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:13:02,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:13:02,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:13:02,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:13:02,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:13:02" (1/1) ... [2020-10-16 12:13:02,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d44c13a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:02, skipping insertion in model container [2020-10-16 12:13:02,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:13:02" (1/1) ... [2020-10-16 12:13:02,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:13:02,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:13:03,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:13:03,201 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:13:03,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:13:03,778 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:13:03,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03 WrapperNode [2020-10-16 12:13:03,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:13:03,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:13:03,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:13:03,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:13:03,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:13:03,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:13:03,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:13:03,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:13:03,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:13:03,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:13:03,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:13:03,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:13:03,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:13:04,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:13:04,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 12:13:04,083 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 12:13:04,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-16 12:13:04,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:13:04,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:13:04,085 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-10-16 12:13:04,085 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-10-16 12:13:04,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:13:04,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:13:04,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 12:13:04,091 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:13:04,856 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:13:04,857 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-16 12:13:04,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:13:04 BoogieIcfgContainer [2020-10-16 12:13:04,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:13:04,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:13:04,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:13:04,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:13:04,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:13:02" (1/3) ... [2020-10-16 12:13:04,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6395eb82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:13:04, skipping insertion in model container [2020-10-16 12:13:04,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (2/3) ... [2020-10-16 12:13:04,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6395eb82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:13:04, skipping insertion in model container [2020-10-16 12:13:04,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:13:04" (3/3) ... [2020-10-16 12:13:04,871 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2020-10-16 12:13:04,887 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:13:04,887 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:13:04,900 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-16 12:13:04,901 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:13:04,982 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,982 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,983 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,983 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,983 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,983 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,983 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,984 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,985 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,985 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,987 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,987 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,988 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,988 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,989 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,990 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,990 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,991 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,992 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,992 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,993 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,993 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,994 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,994 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,994 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,994 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,995 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,995 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,997 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,998 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,999 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,999 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,999 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,999 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,000 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,000 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,002 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,002 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,002 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,002 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,003 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,003 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,004 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,004 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,004 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,004 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,005 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,005 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,005 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,005 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,006 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,006 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,006 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,006 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,006 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,007 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,007 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,011 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,011 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,012 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,012 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,012 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,012 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,013 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,013 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,013 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,013 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,014 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,014 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,020 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,021 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,021 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,021 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,022 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,022 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,022 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,022 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,023 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,023 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,023 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,023 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:05,034 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 12:13:05,049 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-16 12:13:05,071 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:13:05,071 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:13:05,072 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:13:05,072 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:13:05,072 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:13:05,072 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:13:05,072 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:13:05,073 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:13:05,091 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:13:05,092 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 155 transitions, 332 flow [2020-10-16 12:13:05,095 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 155 transitions, 332 flow [2020-10-16 12:13:05,097 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 151 places, 155 transitions, 332 flow [2020-10-16 12:13:05,195 INFO L129 PetriNetUnfolder]: 11/193 cut-off events. [2020-10-16 12:13:05,204 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 12:13:05,213 INFO L80 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 193 events. 11/193 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 378 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 107. Up to 4 conditions per place. [2020-10-16 12:13:05,222 INFO L117 LiptonReduction]: Number of co-enabled transitions 2884 [2020-10-16 12:13:07,745 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:07,771 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:07,781 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:07,806 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:07,807 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:07,808 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:99, output treesize:71 [2020-10-16 12:13:09,741 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-10-16 12:13:09,953 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-16 12:13:10,605 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 125 [2020-10-16 12:13:10,635 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:10,887 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-16 12:13:10,888 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:10,901 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:11,103 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-16 12:13:11,104 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:11,106 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:11,106 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:250, output treesize:222 [2020-10-16 12:13:11,319 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-16 12:13:12,301 WARN L193 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 128 [2020-10-16 12:13:12,324 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:12,713 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-16 12:13:12,713 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:12,721 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:13,137 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-16 12:13:13,138 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:13,139 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:13,140 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:267, output treesize:279 [2020-10-16 12:13:13,569 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-16 12:13:13,783 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-16 12:13:14,004 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-16 12:13:14,019 INFO L132 LiptonReduction]: Checked pairs total: 6656 [2020-10-16 12:13:14,019 INFO L134 LiptonReduction]: Total number of compositions: 167 [2020-10-16 12:13:14,038 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 40 transitions, 102 flow [2020-10-16 12:13:14,074 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 425 states. [2020-10-16 12:13:14,077 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states. [2020-10-16 12:13:14,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-10-16 12:13:14,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:14,084 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-10-16 12:13:14,085 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:14,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:14,091 INFO L82 PathProgramCache]: Analyzing trace with hash 557, now seen corresponding path program 1 times [2020-10-16 12:13:14,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:14,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270390723] [2020-10-16 12:13:14,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:14,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:14,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270390723] [2020-10-16 12:13:14,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:14,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-10-16 12:13:14,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666840252] [2020-10-16 12:13:14,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 12:13:14,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:14,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 12:13:14,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 12:13:14,385 INFO L87 Difference]: Start difference. First operand 425 states. Second operand 2 states. [2020-10-16 12:13:14,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:14,422 INFO L93 Difference]: Finished difference Result 423 states and 1029 transitions. [2020-10-16 12:13:14,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 12:13:14,423 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-10-16 12:13:14,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:14,441 INFO L225 Difference]: With dead ends: 423 [2020-10-16 12:13:14,441 INFO L226 Difference]: Without dead ends: 385 [2020-10-16 12:13:14,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 12:13:14,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-10-16 12:13:14,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2020-10-16 12:13:14,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-10-16 12:13:14,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 931 transitions. [2020-10-16 12:13:14,522 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 931 transitions. Word has length 1 [2020-10-16 12:13:14,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:14,522 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 931 transitions. [2020-10-16 12:13:14,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 12:13:14,522 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 931 transitions. [2020-10-16 12:13:14,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-16 12:13:14,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:14,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-16 12:13:14,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:13:14,524 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:14,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:14,524 INFO L82 PathProgramCache]: Analyzing trace with hash 17154767, now seen corresponding path program 1 times [2020-10-16 12:13:14,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:14,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850403273] [2020-10-16 12:13:14,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:14,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:14,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850403273] [2020-10-16 12:13:14,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:14,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:13:14,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688150901] [2020-10-16 12:13:14,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:13:14,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:14,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:13:14,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:13:14,761 INFO L87 Difference]: Start difference. First operand 385 states and 931 transitions. Second operand 3 states. [2020-10-16 12:13:14,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:14,864 INFO L93 Difference]: Finished difference Result 540 states and 1306 transitions. [2020-10-16 12:13:14,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:13:14,865 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-16 12:13:14,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:14,872 INFO L225 Difference]: With dead ends: 540 [2020-10-16 12:13:14,872 INFO L226 Difference]: Without dead ends: 540 [2020-10-16 12:13:14,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:13:14,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-10-16 12:13:14,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 444. [2020-10-16 12:13:14,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-16 12:13:14,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 1086 transitions. [2020-10-16 12:13:14,909 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 1086 transitions. Word has length 4 [2020-10-16 12:13:14,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:14,910 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 1086 transitions. [2020-10-16 12:13:14,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:13:14,910 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 1086 transitions. [2020-10-16 12:13:14,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 12:13:14,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:14,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 12:13:14,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:13:14,913 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:14,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:14,914 INFO L82 PathProgramCache]: Analyzing trace with hash -694138238, now seen corresponding path program 1 times [2020-10-16 12:13:14,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:14,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356643774] [2020-10-16 12:13:14,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:15,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:15,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356643774] [2020-10-16 12:13:15,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:15,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:13:15,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671552894] [2020-10-16 12:13:15,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:13:15,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:15,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:13:15,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:13:15,034 INFO L87 Difference]: Start difference. First operand 444 states and 1086 transitions. Second operand 4 states. [2020-10-16 12:13:15,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:15,223 INFO L93 Difference]: Finished difference Result 599 states and 1429 transitions. [2020-10-16 12:13:15,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:13:15,223 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-10-16 12:13:15,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:15,227 INFO L225 Difference]: With dead ends: 599 [2020-10-16 12:13:15,228 INFO L226 Difference]: Without dead ends: 514 [2020-10-16 12:13:15,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:13:15,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-16 12:13:15,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 482. [2020-10-16 12:13:15,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-10-16 12:13:15,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1195 transitions. [2020-10-16 12:13:15,249 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1195 transitions. Word has length 6 [2020-10-16 12:13:15,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:15,249 INFO L481 AbstractCegarLoop]: Abstraction has 482 states and 1195 transitions. [2020-10-16 12:13:15,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:13:15,250 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1195 transitions. [2020-10-16 12:13:15,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 12:13:15,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:15,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:15,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:13:15,253 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:15,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:15,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1786983460, now seen corresponding path program 1 times [2020-10-16 12:13:15,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:15,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362862007] [2020-10-16 12:13:15,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:15,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:15,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362862007] [2020-10-16 12:13:15,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:15,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:13:15,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244469757] [2020-10-16 12:13:15,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:13:15,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:15,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:13:15,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:13:15,322 INFO L87 Difference]: Start difference. First operand 482 states and 1195 transitions. Second operand 3 states. [2020-10-16 12:13:15,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:15,338 INFO L93 Difference]: Finished difference Result 162 states and 347 transitions. [2020-10-16 12:13:15,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:13:15,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 12:13:15,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:15,340 INFO L225 Difference]: With dead ends: 162 [2020-10-16 12:13:15,341 INFO L226 Difference]: Without dead ends: 162 [2020-10-16 12:13:15,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:13:15,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-16 12:13:15,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-10-16 12:13:15,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-16 12:13:15,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 347 transitions. [2020-10-16 12:13:15,347 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 347 transitions. Word has length 10 [2020-10-16 12:13:15,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:15,348 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 347 transitions. [2020-10-16 12:13:15,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:13:15,348 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 347 transitions. [2020-10-16 12:13:15,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:15,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:15,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:15,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:13:15,351 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:15,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:15,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1425167552, now seen corresponding path program 1 times [2020-10-16 12:13:15,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:15,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802197714] [2020-10-16 12:13:15,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:15,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:15,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802197714] [2020-10-16 12:13:15,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:15,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:13:15,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704233086] [2020-10-16 12:13:15,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:13:15,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:15,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:13:15,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:13:15,538 INFO L87 Difference]: Start difference. First operand 162 states and 347 transitions. Second operand 5 states. [2020-10-16 12:13:15,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:15,642 INFO L93 Difference]: Finished difference Result 114 states and 195 transitions. [2020-10-16 12:13:15,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:13:15,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-16 12:13:15,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:15,643 INFO L225 Difference]: With dead ends: 114 [2020-10-16 12:13:15,643 INFO L226 Difference]: Without dead ends: 114 [2020-10-16 12:13:15,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:13:15,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-16 12:13:15,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-10-16 12:13:15,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-16 12:13:15,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 195 transitions. [2020-10-16 12:13:15,648 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 195 transitions. Word has length 22 [2020-10-16 12:13:15,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:15,649 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 195 transitions. [2020-10-16 12:13:15,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:13:15,649 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 195 transitions. [2020-10-16 12:13:15,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:15,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:15,651 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:15,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:13:15,651 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:15,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:15,651 INFO L82 PathProgramCache]: Analyzing trace with hash 864306392, now seen corresponding path program 1 times [2020-10-16 12:13:15,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:15,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902723498] [2020-10-16 12:13:15,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:15,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:15,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902723498] [2020-10-16 12:13:15,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:15,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 12:13:15,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483509130] [2020-10-16 12:13:15,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:13:15,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:15,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:13:15,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:13:15,824 INFO L87 Difference]: Start difference. First operand 114 states and 195 transitions. Second operand 8 states. [2020-10-16 12:13:16,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:16,152 INFO L93 Difference]: Finished difference Result 132 states and 222 transitions. [2020-10-16 12:13:16,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:13:16,153 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-16 12:13:16,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:16,154 INFO L225 Difference]: With dead ends: 132 [2020-10-16 12:13:16,155 INFO L226 Difference]: Without dead ends: 132 [2020-10-16 12:13:16,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:16,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-16 12:13:16,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 120. [2020-10-16 12:13:16,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-16 12:13:16,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 200 transitions. [2020-10-16 12:13:16,161 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 200 transitions. Word has length 22 [2020-10-16 12:13:16,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:16,161 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 200 transitions. [2020-10-16 12:13:16,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:13:16,162 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 200 transitions. [2020-10-16 12:13:16,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:16,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:16,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:16,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:13:16,163 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:16,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:16,164 INFO L82 PathProgramCache]: Analyzing trace with hash -412491042, now seen corresponding path program 2 times [2020-10-16 12:13:16,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:16,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551406789] [2020-10-16 12:13:16,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:16,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:16,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551406789] [2020-10-16 12:13:16,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:16,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 12:13:16,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706430231] [2020-10-16 12:13:16,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 12:13:16,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:16,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 12:13:16,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:13:16,636 INFO L87 Difference]: Start difference. First operand 120 states and 200 transitions. Second operand 9 states. [2020-10-16 12:13:17,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:17,068 INFO L93 Difference]: Finished difference Result 160 states and 256 transitions. [2020-10-16 12:13:17,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:13:17,069 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-16 12:13:17,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:17,071 INFO L225 Difference]: With dead ends: 160 [2020-10-16 12:13:17,071 INFO L226 Difference]: Without dead ends: 160 [2020-10-16 12:13:17,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:17,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-16 12:13:17,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 130. [2020-10-16 12:13:17,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-16 12:13:17,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 210 transitions. [2020-10-16 12:13:17,077 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 210 transitions. Word has length 22 [2020-10-16 12:13:17,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:17,078 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 210 transitions. [2020-10-16 12:13:17,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 12:13:17,078 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 210 transitions. [2020-10-16 12:13:17,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:17,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:17,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:17,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:13:17,079 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:17,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:17,080 INFO L82 PathProgramCache]: Analyzing trace with hash -412491025, now seen corresponding path program 1 times [2020-10-16 12:13:17,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:17,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807957131] [2020-10-16 12:13:17,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:17,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:17,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807957131] [2020-10-16 12:13:17,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:17,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:17,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953866880] [2020-10-16 12:13:17,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:17,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:17,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:17,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:17,993 INFO L87 Difference]: Start difference. First operand 130 states and 210 transitions. Second operand 14 states. [2020-10-16 12:13:19,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:19,007 INFO L93 Difference]: Finished difference Result 146 states and 225 transitions. [2020-10-16 12:13:19,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:13:19,007 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:19,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:19,009 INFO L225 Difference]: With dead ends: 146 [2020-10-16 12:13:19,009 INFO L226 Difference]: Without dead ends: 131 [2020-10-16 12:13:19,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:19,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-16 12:13:19,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2020-10-16 12:13:19,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-16 12:13:19,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 208 transitions. [2020-10-16 12:13:19,015 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 208 transitions. Word has length 22 [2020-10-16 12:13:19,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:19,015 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 208 transitions. [2020-10-16 12:13:19,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:19,016 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 208 transitions. [2020-10-16 12:13:19,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:19,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:19,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:19,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:13:19,017 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:19,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:19,018 INFO L82 PathProgramCache]: Analyzing trace with hash -524474255, now seen corresponding path program 2 times [2020-10-16 12:13:19,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:19,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314347163] [2020-10-16 12:13:19,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:19,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:19,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314347163] [2020-10-16 12:13:19,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:19,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:19,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820944531] [2020-10-16 12:13:19,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:19,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:19,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:19,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:19,927 INFO L87 Difference]: Start difference. First operand 130 states and 208 transitions. Second operand 14 states. [2020-10-16 12:13:20,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:20,943 INFO L93 Difference]: Finished difference Result 144 states and 221 transitions. [2020-10-16 12:13:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-16 12:13:20,944 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:20,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:20,946 INFO L225 Difference]: With dead ends: 144 [2020-10-16 12:13:20,946 INFO L226 Difference]: Without dead ends: 131 [2020-10-16 12:13:20,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2020-10-16 12:13:20,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-16 12:13:20,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2020-10-16 12:13:20,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-16 12:13:20,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 207 transitions. [2020-10-16 12:13:20,951 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 207 transitions. Word has length 22 [2020-10-16 12:13:20,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:20,951 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 207 transitions. [2020-10-16 12:13:20,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:20,952 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 207 transitions. [2020-10-16 12:13:20,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:20,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:20,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:20,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:13:20,982 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:20,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:20,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1681973066, now seen corresponding path program 2 times [2020-10-16 12:13:20,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:20,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552580321] [2020-10-16 12:13:20,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:21,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:21,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552580321] [2020-10-16 12:13:21,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:21,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:13:21,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332573997] [2020-10-16 12:13:21,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 12:13:21,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:21,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 12:13:21,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-16 12:13:21,184 INFO L87 Difference]: Start difference. First operand 130 states and 207 transitions. Second operand 11 states. [2020-10-16 12:13:21,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:21,688 INFO L93 Difference]: Finished difference Result 178 states and 289 transitions. [2020-10-16 12:13:21,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:13:21,689 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2020-10-16 12:13:21,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:21,690 INFO L225 Difference]: With dead ends: 178 [2020-10-16 12:13:21,690 INFO L226 Difference]: Without dead ends: 178 [2020-10-16 12:13:21,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=220, Unknown=0, NotChecked=0, Total=342 [2020-10-16 12:13:21,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-16 12:13:21,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 138. [2020-10-16 12:13:21,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-16 12:13:21,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 224 transitions. [2020-10-16 12:13:21,696 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 224 transitions. Word has length 22 [2020-10-16 12:13:21,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:21,696 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 224 transitions. [2020-10-16 12:13:21,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 12:13:21,697 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 224 transitions. [2020-10-16 12:13:21,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:21,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:21,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:21,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:13:21,698 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:21,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:21,698 INFO L82 PathProgramCache]: Analyzing trace with hash 671772802, now seen corresponding path program 3 times [2020-10-16 12:13:21,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:21,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38780013] [2020-10-16 12:13:21,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:22,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:22,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38780013] [2020-10-16 12:13:22,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:22,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 12:13:22,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725218347] [2020-10-16 12:13:22,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 12:13:22,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:22,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 12:13:22,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:13:22,019 INFO L87 Difference]: Start difference. First operand 138 states and 224 transitions. Second operand 9 states. [2020-10-16 12:13:22,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:22,310 INFO L93 Difference]: Finished difference Result 171 states and 268 transitions. [2020-10-16 12:13:22,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:13:22,310 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-16 12:13:22,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:22,312 INFO L225 Difference]: With dead ends: 171 [2020-10-16 12:13:22,312 INFO L226 Difference]: Without dead ends: 171 [2020-10-16 12:13:22,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-16 12:13:22,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-16 12:13:22,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 140. [2020-10-16 12:13:22,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-16 12:13:22,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 226 transitions. [2020-10-16 12:13:22,319 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 226 transitions. Word has length 22 [2020-10-16 12:13:22,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:22,319 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 226 transitions. [2020-10-16 12:13:22,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 12:13:22,319 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 226 transitions. [2020-10-16 12:13:22,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:22,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:22,320 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:22,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:13:22,321 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:22,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:22,321 INFO L82 PathProgramCache]: Analyzing trace with hash 671772819, now seen corresponding path program 3 times [2020-10-16 12:13:22,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:22,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078546798] [2020-10-16 12:13:22,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:23,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:23,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078546798] [2020-10-16 12:13:23,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:23,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:23,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96310632] [2020-10-16 12:13:23,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:23,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:23,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:23,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:23,124 INFO L87 Difference]: Start difference. First operand 140 states and 226 transitions. Second operand 14 states. [2020-10-16 12:13:24,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:24,066 INFO L93 Difference]: Finished difference Result 150 states and 235 transitions. [2020-10-16 12:13:24,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 12:13:24,067 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:24,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:24,069 INFO L225 Difference]: With dead ends: 150 [2020-10-16 12:13:24,069 INFO L226 Difference]: Without dead ends: 142 [2020-10-16 12:13:24,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:24,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-16 12:13:24,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 140. [2020-10-16 12:13:24,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-16 12:13:24,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 225 transitions. [2020-10-16 12:13:24,075 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 225 transitions. Word has length 22 [2020-10-16 12:13:24,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:24,076 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 225 transitions. [2020-10-16 12:13:24,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:24,076 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 225 transitions. [2020-10-16 12:13:24,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:24,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:24,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:24,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 12:13:24,077 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:24,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:24,078 INFO L82 PathProgramCache]: Analyzing trace with hash -481747075, now seen corresponding path program 4 times [2020-10-16 12:13:24,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:24,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794855698] [2020-10-16 12:13:24,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:24,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:24,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794855698] [2020-10-16 12:13:24,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:24,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:24,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742010360] [2020-10-16 12:13:24,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:24,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:24,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:24,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:24,857 INFO L87 Difference]: Start difference. First operand 140 states and 225 transitions. Second operand 14 states. [2020-10-16 12:13:25,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:25,725 INFO L93 Difference]: Finished difference Result 149 states and 233 transitions. [2020-10-16 12:13:25,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:13:25,727 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:25,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:25,728 INFO L225 Difference]: With dead ends: 149 [2020-10-16 12:13:25,728 INFO L226 Difference]: Without dead ends: 136 [2020-10-16 12:13:25,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:25,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-16 12:13:25,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 134. [2020-10-16 12:13:25,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-10-16 12:13:25,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 214 transitions. [2020-10-16 12:13:25,735 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 214 transitions. Word has length 22 [2020-10-16 12:13:25,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:25,736 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 214 transitions. [2020-10-16 12:13:25,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:25,736 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 214 transitions. [2020-10-16 12:13:25,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:25,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:25,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:25,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 12:13:25,737 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:25,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:25,738 INFO L82 PathProgramCache]: Analyzing trace with hash 186432761, now seen corresponding path program 5 times [2020-10-16 12:13:25,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:25,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824240567] [2020-10-16 12:13:25,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:25,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:26,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:26,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824240567] [2020-10-16 12:13:26,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:26,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:26,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108389557] [2020-10-16 12:13:26,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:26,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:26,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:26,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:26,565 INFO L87 Difference]: Start difference. First operand 134 states and 214 transitions. Second operand 14 states. [2020-10-16 12:13:27,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:27,472 INFO L93 Difference]: Finished difference Result 150 states and 228 transitions. [2020-10-16 12:13:27,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 12:13:27,473 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:27,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:27,474 INFO L225 Difference]: With dead ends: 150 [2020-10-16 12:13:27,475 INFO L226 Difference]: Without dead ends: 139 [2020-10-16 12:13:27,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:27,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-10-16 12:13:27,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 138. [2020-10-16 12:13:27,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-16 12:13:27,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 216 transitions. [2020-10-16 12:13:27,480 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 216 transitions. Word has length 22 [2020-10-16 12:13:27,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:27,481 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 216 transitions. [2020-10-16 12:13:27,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:27,481 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 216 transitions. [2020-10-16 12:13:27,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:27,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:27,482 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:27,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-16 12:13:27,482 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:27,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:27,482 INFO L82 PathProgramCache]: Analyzing trace with hash 331278926, now seen corresponding path program 4 times [2020-10-16 12:13:27,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:27,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842379000] [2020-10-16 12:13:27,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:27,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:27,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842379000] [2020-10-16 12:13:27,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:27,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 12:13:27,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163777009] [2020-10-16 12:13:27,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 12:13:27,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:27,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 12:13:27,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:13:27,828 INFO L87 Difference]: Start difference. First operand 138 states and 216 transitions. Second operand 9 states. [2020-10-16 12:13:28,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:28,213 INFO L93 Difference]: Finished difference Result 170 states and 261 transitions. [2020-10-16 12:13:28,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 12:13:28,214 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-16 12:13:28,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:28,215 INFO L225 Difference]: With dead ends: 170 [2020-10-16 12:13:28,215 INFO L226 Difference]: Without dead ends: 158 [2020-10-16 12:13:28,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:28,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-16 12:13:28,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 126. [2020-10-16 12:13:28,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-16 12:13:28,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 202 transitions. [2020-10-16 12:13:28,220 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 202 transitions. Word has length 22 [2020-10-16 12:13:28,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:28,220 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 202 transitions. [2020-10-16 12:13:28,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 12:13:28,220 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 202 transitions. [2020-10-16 12:13:28,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:28,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:28,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:28,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-16 12:13:28,222 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:28,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:28,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1728779239, now seen corresponding path program 6 times [2020-10-16 12:13:28,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:28,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795373746] [2020-10-16 12:13:28,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:29,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:29,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795373746] [2020-10-16 12:13:29,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:29,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:29,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369549390] [2020-10-16 12:13:29,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:29,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:29,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:29,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:29,341 INFO L87 Difference]: Start difference. First operand 126 states and 202 transitions. Second operand 14 states. [2020-10-16 12:13:30,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:30,346 INFO L93 Difference]: Finished difference Result 138 states and 213 transitions. [2020-10-16 12:13:30,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 12:13:30,347 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:30,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:30,349 INFO L225 Difference]: With dead ends: 138 [2020-10-16 12:13:30,349 INFO L226 Difference]: Without dead ends: 116 [2020-10-16 12:13:30,350 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-10-16 12:13:30,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-16 12:13:30,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-10-16 12:13:30,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-16 12:13:30,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 185 transitions. [2020-10-16 12:13:30,353 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 185 transitions. Word has length 22 [2020-10-16 12:13:30,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:30,354 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 185 transitions. [2020-10-16 12:13:30,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:30,354 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 185 transitions. [2020-10-16 12:13:30,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:30,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:30,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:30,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-16 12:13:30,355 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:30,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:30,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1730688272, now seen corresponding path program 5 times [2020-10-16 12:13:30,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:30,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733755322] [2020-10-16 12:13:30,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:30,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:30,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733755322] [2020-10-16 12:13:30,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:30,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 12:13:30,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224007838] [2020-10-16 12:13:30,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 12:13:30,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:30,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 12:13:30,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:13:30,692 INFO L87 Difference]: Start difference. First operand 116 states and 185 transitions. Second operand 9 states. [2020-10-16 12:13:31,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:31,081 INFO L93 Difference]: Finished difference Result 146 states and 232 transitions. [2020-10-16 12:13:31,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:13:31,082 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-16 12:13:31,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:31,083 INFO L225 Difference]: With dead ends: 146 [2020-10-16 12:13:31,084 INFO L226 Difference]: Without dead ends: 146 [2020-10-16 12:13:31,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:31,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-16 12:13:31,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 140. [2020-10-16 12:13:31,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-16 12:13:31,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 226 transitions. [2020-10-16 12:13:31,088 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 226 transitions. Word has length 22 [2020-10-16 12:13:31,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:31,088 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 226 transitions. [2020-10-16 12:13:31,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 12:13:31,088 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 226 transitions. [2020-10-16 12:13:31,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:31,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:31,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:31,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-16 12:13:31,089 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:31,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:31,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1730688289, now seen corresponding path program 7 times [2020-10-16 12:13:31,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:31,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048829330] [2020-10-16 12:13:31,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:32,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:32,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048829330] [2020-10-16 12:13:32,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:32,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:32,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941699265] [2020-10-16 12:13:32,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:32,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:32,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:32,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:32,017 INFO L87 Difference]: Start difference. First operand 140 states and 226 transitions. Second operand 14 states. [2020-10-16 12:13:33,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:33,046 INFO L93 Difference]: Finished difference Result 171 states and 271 transitions. [2020-10-16 12:13:33,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:13:33,046 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:33,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:33,047 INFO L225 Difference]: With dead ends: 171 [2020-10-16 12:13:33,047 INFO L226 Difference]: Without dead ends: 143 [2020-10-16 12:13:33,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:33,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-16 12:13:33,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 140. [2020-10-16 12:13:33,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-16 12:13:33,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 225 transitions. [2020-10-16 12:13:33,053 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 225 transitions. Word has length 22 [2020-10-16 12:13:33,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:33,053 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 225 transitions. [2020-10-16 12:13:33,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:33,054 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 225 transitions. [2020-10-16 12:13:33,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:33,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:33,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:33,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-16 12:13:33,055 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:33,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:33,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1523655162, now seen corresponding path program 6 times [2020-10-16 12:13:33,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:33,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122049844] [2020-10-16 12:13:33,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:33,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:33,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122049844] [2020-10-16 12:13:33,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:33,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 12:13:33,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973258266] [2020-10-16 12:13:33,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 12:13:33,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:33,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 12:13:33,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:13:33,388 INFO L87 Difference]: Start difference. First operand 140 states and 225 transitions. Second operand 9 states. [2020-10-16 12:13:33,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:33,724 INFO L93 Difference]: Finished difference Result 151 states and 238 transitions. [2020-10-16 12:13:33,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 12:13:33,725 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-16 12:13:33,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:33,726 INFO L225 Difference]: With dead ends: 151 [2020-10-16 12:13:33,727 INFO L226 Difference]: Without dead ends: 151 [2020-10-16 12:13:33,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:33,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-10-16 12:13:33,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 109. [2020-10-16 12:13:33,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-16 12:13:33,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 177 transitions. [2020-10-16 12:13:33,730 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 177 transitions. Word has length 22 [2020-10-16 12:13:33,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:33,731 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 177 transitions. [2020-10-16 12:13:33,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 12:13:33,731 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 177 transitions. [2020-10-16 12:13:33,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:33,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:33,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:33,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-16 12:13:33,732 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:33,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:33,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1523655179, now seen corresponding path program 8 times [2020-10-16 12:13:33,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:33,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845449620] [2020-10-16 12:13:33,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:34,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:34,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845449620] [2020-10-16 12:13:34,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:34,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:34,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896218777] [2020-10-16 12:13:34,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:34,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:34,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:34,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:34,633 INFO L87 Difference]: Start difference. First operand 109 states and 177 transitions. Second operand 14 states. [2020-10-16 12:13:35,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:35,689 INFO L93 Difference]: Finished difference Result 147 states and 237 transitions. [2020-10-16 12:13:35,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:13:35,693 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:35,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:35,694 INFO L225 Difference]: With dead ends: 147 [2020-10-16 12:13:35,694 INFO L226 Difference]: Without dead ends: 125 [2020-10-16 12:13:35,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:35,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-16 12:13:35,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 109. [2020-10-16 12:13:35,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-16 12:13:35,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 175 transitions. [2020-10-16 12:13:35,700 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 175 transitions. Word has length 22 [2020-10-16 12:13:35,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:35,700 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 175 transitions. [2020-10-16 12:13:35,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:35,700 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 175 transitions. [2020-10-16 12:13:35,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:35,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:35,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:35,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-16 12:13:35,705 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:35,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:35,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1986983371, now seen corresponding path program 9 times [2020-10-16 12:13:35,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:35,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115253821] [2020-10-16 12:13:35,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:36,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:36,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115253821] [2020-10-16 12:13:36,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:36,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:36,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261770879] [2020-10-16 12:13:36,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:36,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:36,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:36,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:36,571 INFO L87 Difference]: Start difference. First operand 109 states and 175 transitions. Second operand 14 states. [2020-10-16 12:13:37,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:37,672 INFO L93 Difference]: Finished difference Result 148 states and 232 transitions. [2020-10-16 12:13:37,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-16 12:13:37,673 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:37,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:37,674 INFO L225 Difference]: With dead ends: 148 [2020-10-16 12:13:37,674 INFO L226 Difference]: Without dead ends: 134 [2020-10-16 12:13:37,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-10-16 12:13:37,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-16 12:13:37,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 109. [2020-10-16 12:13:37,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-16 12:13:37,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 173 transitions. [2020-10-16 12:13:37,679 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 173 transitions. Word has length 22 [2020-10-16 12:13:37,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:37,679 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 173 transitions. [2020-10-16 12:13:37,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:37,680 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 173 transitions. [2020-10-16 12:13:37,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:37,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:37,680 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:37,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-16 12:13:37,681 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:37,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:37,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1039623051, now seen corresponding path program 10 times [2020-10-16 12:13:37,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:37,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280556638] [2020-10-16 12:13:37,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:38,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:38,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280556638] [2020-10-16 12:13:38,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:38,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:38,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947923478] [2020-10-16 12:13:38,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:38,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:38,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:38,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:38,486 INFO L87 Difference]: Start difference. First operand 109 states and 173 transitions. Second operand 14 states. [2020-10-16 12:13:39,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:39,464 INFO L93 Difference]: Finished difference Result 140 states and 216 transitions. [2020-10-16 12:13:39,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 12:13:39,465 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:39,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:39,466 INFO L225 Difference]: With dead ends: 140 [2020-10-16 12:13:39,466 INFO L226 Difference]: Without dead ends: 124 [2020-10-16 12:13:39,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:39,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-16 12:13:39,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 99. [2020-10-16 12:13:39,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-16 12:13:39,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 157 transitions. [2020-10-16 12:13:39,470 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 157 transitions. Word has length 22 [2020-10-16 12:13:39,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:39,470 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 157 transitions. [2020-10-16 12:13:39,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:39,470 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 157 transitions. [2020-10-16 12:13:39,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:39,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:39,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:39,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-16 12:13:39,471 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:39,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:39,471 INFO L82 PathProgramCache]: Analyzing trace with hash 2100578423, now seen corresponding path program 11 times [2020-10-16 12:13:39,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:39,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023615398] [2020-10-16 12:13:39,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:40,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023615398] [2020-10-16 12:13:40,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:40,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:40,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123840828] [2020-10-16 12:13:40,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:40,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:40,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:40,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:40,397 INFO L87 Difference]: Start difference. First operand 99 states and 157 transitions. Second operand 14 states. [2020-10-16 12:13:41,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:41,416 INFO L93 Difference]: Finished difference Result 138 states and 218 transitions. [2020-10-16 12:13:41,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:13:41,417 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:41,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:41,418 INFO L225 Difference]: With dead ends: 138 [2020-10-16 12:13:41,418 INFO L226 Difference]: Without dead ends: 105 [2020-10-16 12:13:41,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:41,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-16 12:13:41,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 93. [2020-10-16 12:13:41,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-16 12:13:41,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 146 transitions. [2020-10-16 12:13:41,421 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 146 transitions. Word has length 22 [2020-10-16 12:13:41,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:41,421 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 146 transitions. [2020-10-16 12:13:41,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:41,421 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 146 transitions. [2020-10-16 12:13:41,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:41,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:41,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:41,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-16 12:13:41,422 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:41,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:41,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1068559361, now seen corresponding path program 12 times [2020-10-16 12:13:41,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:41,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244812913] [2020-10-16 12:13:41,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:42,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:42,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244812913] [2020-10-16 12:13:42,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:42,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:42,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331953803] [2020-10-16 12:13:42,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:42,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:42,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:42,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:42,365 INFO L87 Difference]: Start difference. First operand 93 states and 146 transitions. Second operand 14 states. [2020-10-16 12:13:43,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:43,404 INFO L93 Difference]: Finished difference Result 126 states and 193 transitions. [2020-10-16 12:13:43,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:13:43,404 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:43,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:43,405 INFO L225 Difference]: With dead ends: 126 [2020-10-16 12:13:43,406 INFO L226 Difference]: Without dead ends: 92 [2020-10-16 12:13:43,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:43,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-16 12:13:43,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 89. [2020-10-16 12:13:43,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-16 12:13:43,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 138 transitions. [2020-10-16 12:13:43,410 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 138 transitions. Word has length 22 [2020-10-16 12:13:43,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:43,410 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 138 transitions. [2020-10-16 12:13:43,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:43,410 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 138 transitions. [2020-10-16 12:13:43,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:43,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:43,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:43,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-16 12:13:43,411 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:43,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:43,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1273870831, now seen corresponding path program 13 times [2020-10-16 12:13:43,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:43,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369441829] [2020-10-16 12:13:43,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:44,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:44,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369441829] [2020-10-16 12:13:44,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:44,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:44,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904053340] [2020-10-16 12:13:44,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:44,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:44,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:44,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:44,258 INFO L87 Difference]: Start difference. First operand 89 states and 138 transitions. Second operand 14 states. [2020-10-16 12:13:45,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:45,186 INFO L93 Difference]: Finished difference Result 95 states and 143 transitions. [2020-10-16 12:13:45,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:13:45,187 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:45,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:45,188 INFO L225 Difference]: With dead ends: 95 [2020-10-16 12:13:45,188 INFO L226 Difference]: Without dead ends: 80 [2020-10-16 12:13:45,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:45,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-16 12:13:45,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-16 12:13:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-16 12:13:45,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 128 transitions. [2020-10-16 12:13:45,194 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 128 transitions. Word has length 22 [2020-10-16 12:13:45,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:45,194 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 128 transitions. [2020-10-16 12:13:45,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:45,194 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 128 transitions. [2020-10-16 12:13:45,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:45,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:45,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:45,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-16 12:13:45,195 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:45,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:45,195 INFO L82 PathProgramCache]: Analyzing trace with hash 341292095, now seen corresponding path program 14 times [2020-10-16 12:13:45,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:45,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953641346] [2020-10-16 12:13:45,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:46,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:46,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953641346] [2020-10-16 12:13:46,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:46,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:46,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049538234] [2020-10-16 12:13:46,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:46,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:46,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:46,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:46,153 INFO L87 Difference]: Start difference. First operand 80 states and 128 transitions. Second operand 14 states. [2020-10-16 12:13:47,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:47,184 INFO L93 Difference]: Finished difference Result 110 states and 172 transitions. [2020-10-16 12:13:47,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:13:47,185 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:47,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:47,186 INFO L225 Difference]: With dead ends: 110 [2020-10-16 12:13:47,186 INFO L226 Difference]: Without dead ends: 77 [2020-10-16 12:13:47,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:47,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-16 12:13:47,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-10-16 12:13:47,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-16 12:13:47,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 124 transitions. [2020-10-16 12:13:47,191 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 124 transitions. Word has length 22 [2020-10-16 12:13:47,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:47,191 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 124 transitions. [2020-10-16 12:13:47,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:47,191 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 124 transitions. [2020-10-16 12:13:47,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:47,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:47,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:47,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-16 12:13:47,192 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:47,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:47,192 INFO L82 PathProgramCache]: Analyzing trace with hash 2099874535, now seen corresponding path program 15 times [2020-10-16 12:13:47,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:47,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455288965] [2020-10-16 12:13:47,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:48,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:48,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455288965] [2020-10-16 12:13:48,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:48,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:48,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106579266] [2020-10-16 12:13:48,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:48,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:48,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:48,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:48,143 INFO L87 Difference]: Start difference. First operand 77 states and 124 transitions. Second operand 14 states. [2020-10-16 12:13:49,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:49,192 INFO L93 Difference]: Finished difference Result 111 states and 175 transitions. [2020-10-16 12:13:49,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:13:49,193 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:49,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:49,194 INFO L225 Difference]: With dead ends: 111 [2020-10-16 12:13:49,194 INFO L226 Difference]: Without dead ends: 80 [2020-10-16 12:13:49,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:49,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-16 12:13:49,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2020-10-16 12:13:49,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-16 12:13:49,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 127 transitions. [2020-10-16 12:13:49,198 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 127 transitions. Word has length 22 [2020-10-16 12:13:49,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:49,198 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 127 transitions. [2020-10-16 12:13:49,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:49,198 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 127 transitions. [2020-10-16 12:13:49,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:49,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:49,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:49,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-16 12:13:49,199 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:49,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:49,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1892841425, now seen corresponding path program 16 times [2020-10-16 12:13:49,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:49,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314736927] [2020-10-16 12:13:49,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:50,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:50,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314736927] [2020-10-16 12:13:50,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:50,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:50,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558796220] [2020-10-16 12:13:50,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:50,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:50,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:50,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:50,042 INFO L87 Difference]: Start difference. First operand 79 states and 127 transitions. Second operand 14 states. [2020-10-16 12:13:51,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:51,001 INFO L93 Difference]: Finished difference Result 128 states and 209 transitions. [2020-10-16 12:13:51,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:13:51,002 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:51,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:51,003 INFO L225 Difference]: With dead ends: 128 [2020-10-16 12:13:51,003 INFO L226 Difference]: Without dead ends: 103 [2020-10-16 12:13:51,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:51,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-16 12:13:51,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 87. [2020-10-16 12:13:51,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-16 12:13:51,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 141 transitions. [2020-10-16 12:13:51,007 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 141 transitions. Word has length 22 [2020-10-16 12:13:51,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:51,008 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 141 transitions. [2020-10-16 12:13:51,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:51,008 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 141 transitions. [2020-10-16 12:13:51,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:51,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:51,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:51,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-16 12:13:51,009 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:51,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:51,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1938797679, now seen corresponding path program 17 times [2020-10-16 12:13:51,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:51,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990410191] [2020-10-16 12:13:51,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:51,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:51,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990410191] [2020-10-16 12:13:51,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:51,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:51,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41518859] [2020-10-16 12:13:51,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:51,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:51,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:51,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:51,835 INFO L87 Difference]: Start difference. First operand 87 states and 141 transitions. Second operand 14 states. [2020-10-16 12:13:52,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:52,838 INFO L93 Difference]: Finished difference Result 134 states and 212 transitions. [2020-10-16 12:13:52,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-16 12:13:52,839 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:52,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:52,840 INFO L225 Difference]: With dead ends: 134 [2020-10-16 12:13:52,840 INFO L226 Difference]: Without dead ends: 117 [2020-10-16 12:13:52,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-10-16 12:13:52,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-16 12:13:52,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 91. [2020-10-16 12:13:52,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-16 12:13:52,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 147 transitions. [2020-10-16 12:13:52,844 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 147 transitions. Word has length 22 [2020-10-16 12:13:52,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:52,844 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 147 transitions. [2020-10-16 12:13:52,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:52,844 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 147 transitions. [2020-10-16 12:13:52,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:52,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:52,845 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:52,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-16 12:13:52,845 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:52,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:52,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1408809297, now seen corresponding path program 18 times [2020-10-16 12:13:52,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:52,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79169671] [2020-10-16 12:13:52,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:53,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:53,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79169671] [2020-10-16 12:13:53,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:53,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:53,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877676318] [2020-10-16 12:13:53,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:53,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:53,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:53,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:53,696 INFO L87 Difference]: Start difference. First operand 91 states and 147 transitions. Second operand 14 states. [2020-10-16 12:13:54,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:54,565 INFO L93 Difference]: Finished difference Result 126 states and 196 transitions. [2020-10-16 12:13:54,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 12:13:54,566 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:54,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:54,567 INFO L225 Difference]: With dead ends: 126 [2020-10-16 12:13:54,567 INFO L226 Difference]: Without dead ends: 107 [2020-10-16 12:13:54,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:54,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-16 12:13:54,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 83. [2020-10-16 12:13:54,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-16 12:13:54,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 133 transitions. [2020-10-16 12:13:54,571 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 133 transitions. Word has length 22 [2020-10-16 12:13:54,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:54,572 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 133 transitions. [2020-10-16 12:13:54,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:54,572 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 133 transitions. [2020-10-16 12:13:54,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:54,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:54,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:54,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-16 12:13:54,573 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:54,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:54,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1825202627, now seen corresponding path program 19 times [2020-10-16 12:13:54,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:54,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911278555] [2020-10-16 12:13:54,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:55,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:55,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911278555] [2020-10-16 12:13:55,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:55,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:55,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400943926] [2020-10-16 12:13:55,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:55,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:55,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:55,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:55,610 INFO L87 Difference]: Start difference. First operand 83 states and 133 transitions. Second operand 14 states. [2020-10-16 12:13:56,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:56,613 INFO L93 Difference]: Finished difference Result 123 states and 196 transitions. [2020-10-16 12:13:56,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:13:56,614 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:56,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:56,615 INFO L225 Difference]: With dead ends: 123 [2020-10-16 12:13:56,615 INFO L226 Difference]: Without dead ends: 87 [2020-10-16 12:13:56,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:56,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-16 12:13:56,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 77. [2020-10-16 12:13:56,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-16 12:13:56,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 122 transitions. [2020-10-16 12:13:56,618 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 122 transitions. Word has length 22 [2020-10-16 12:13:56,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:56,618 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 122 transitions. [2020-10-16 12:13:56,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:56,618 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 122 transitions. [2020-10-16 12:13:56,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:56,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:56,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:56,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-16 12:13:56,619 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:56,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:56,619 INFO L82 PathProgramCache]: Analyzing trace with hash -699373115, now seen corresponding path program 20 times [2020-10-16 12:13:56,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:56,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155480321] [2020-10-16 12:13:56,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:57,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:57,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155480321] [2020-10-16 12:13:57,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:57,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:57,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546602034] [2020-10-16 12:13:57,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:57,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:57,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:57,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:57,569 INFO L87 Difference]: Start difference. First operand 77 states and 122 transitions. Second operand 14 states. [2020-10-16 12:13:58,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:58,634 INFO L93 Difference]: Finished difference Result 108 states and 168 transitions. [2020-10-16 12:13:58,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:13:58,636 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:58,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:58,637 INFO L225 Difference]: With dead ends: 108 [2020-10-16 12:13:58,638 INFO L226 Difference]: Without dead ends: 62 [2020-10-16 12:13:58,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:58,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-16 12:13:58,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-10-16 12:13:58,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-16 12:13:58,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 98 transitions. [2020-10-16 12:13:58,640 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 98 transitions. Word has length 22 [2020-10-16 12:13:58,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:58,640 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 98 transitions. [2020-10-16 12:13:58,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:58,640 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 98 transitions. [2020-10-16 12:13:58,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:58,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:58,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:58,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-16 12:13:58,641 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:58,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:58,642 INFO L82 PathProgramCache]: Analyzing trace with hash -675636301, now seen corresponding path program 21 times [2020-10-16 12:13:58,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:58,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202842930] [2020-10-16 12:13:58,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:59,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:59,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202842930] [2020-10-16 12:13:59,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:59,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:59,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987365299] [2020-10-16 12:13:59,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:59,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:59,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:59,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:59,568 INFO L87 Difference]: Start difference. First operand 62 states and 98 transitions. Second operand 14 states. [2020-10-16 12:14:00,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:14:00,517 INFO L93 Difference]: Finished difference Result 92 states and 143 transitions. [2020-10-16 12:14:00,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:14:00,518 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:14:00,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:14:00,519 INFO L225 Difference]: With dead ends: 92 [2020-10-16 12:14:00,519 INFO L226 Difference]: Without dead ends: 61 [2020-10-16 12:14:00,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:14:00,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-16 12:14:00,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-10-16 12:14:00,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-16 12:14:00,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 96 transitions. [2020-10-16 12:14:00,522 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 96 transitions. Word has length 22 [2020-10-16 12:14:00,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:14:00,522 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 96 transitions. [2020-10-16 12:14:00,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:14:00,523 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 96 transitions. [2020-10-16 12:14:00,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:14:00,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:14:00,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:14:00,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-16 12:14:00,524 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:14:00,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:14:00,524 INFO L82 PathProgramCache]: Analyzing trace with hash -882669411, now seen corresponding path program 22 times [2020-10-16 12:14:00,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:14:00,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625169437] [2020-10-16 12:14:00,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:14:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:14:01,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:14:01,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625169437] [2020-10-16 12:14:01,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:14:01,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:14:01,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457594784] [2020-10-16 12:14:01,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:14:01,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:14:01,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:14:01,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:14:01,371 INFO L87 Difference]: Start difference. First operand 61 states and 96 transitions. Second operand 14 states. [2020-10-16 12:14:02,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:14:02,324 INFO L93 Difference]: Finished difference Result 109 states and 177 transitions. [2020-10-16 12:14:02,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:14:02,324 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:14:02,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:14:02,326 INFO L225 Difference]: With dead ends: 109 [2020-10-16 12:14:02,326 INFO L226 Difference]: Without dead ends: 84 [2020-10-16 12:14:02,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:14:02,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-16 12:14:02,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 69. [2020-10-16 12:14:02,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-16 12:14:02,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 110 transitions. [2020-10-16 12:14:02,329 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 110 transitions. Word has length 22 [2020-10-16 12:14:02,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:14:02,329 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 110 transitions. [2020-10-16 12:14:02,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:14:02,329 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 110 transitions. [2020-10-16 12:14:02,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:14:02,329 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:14:02,330 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:14:02,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-16 12:14:02,330 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:14:02,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:14:02,330 INFO L82 PathProgramCache]: Analyzing trace with hash -419341219, now seen corresponding path program 23 times [2020-10-16 12:14:02,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:14:02,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964776346] [2020-10-16 12:14:02,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:14:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:14:03,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:14:03,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964776346] [2020-10-16 12:14:03,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:14:03,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:14:03,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805106954] [2020-10-16 12:14:03,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:14:03,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:14:03,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:14:03,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:14:03,118 INFO L87 Difference]: Start difference. First operand 69 states and 110 transitions. Second operand 14 states. [2020-10-16 12:14:04,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:14:04,116 INFO L93 Difference]: Finished difference Result 115 states and 180 transitions. [2020-10-16 12:14:04,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-16 12:14:04,117 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:14:04,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:14:04,118 INFO L225 Difference]: With dead ends: 115 [2020-10-16 12:14:04,118 INFO L226 Difference]: Without dead ends: 98 [2020-10-16 12:14:04,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-10-16 12:14:04,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-16 12:14:04,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 73. [2020-10-16 12:14:04,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-16 12:14:04,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 116 transitions. [2020-10-16 12:14:04,122 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 116 transitions. Word has length 22 [2020-10-16 12:14:04,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:14:04,122 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 116 transitions. [2020-10-16 12:14:04,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:14:04,122 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 116 transitions. [2020-10-16 12:14:04,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:14:04,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:14:04,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:14:04,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-16 12:14:04,123 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:14:04,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:14:04,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1366701539, now seen corresponding path program 24 times [2020-10-16 12:14:04,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:14:04,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076658451] [2020-10-16 12:14:04,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:14:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:14:05,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:14:05,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076658451] [2020-10-16 12:14:05,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:14:05,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:14:05,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676966888] [2020-10-16 12:14:05,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:14:05,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:14:05,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:14:05,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:14:05,278 INFO L87 Difference]: Start difference. First operand 73 states and 116 transitions. Second operand 14 states. [2020-10-16 12:14:06,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:14:06,240 INFO L93 Difference]: Finished difference Result 107 states and 164 transitions. [2020-10-16 12:14:06,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 12:14:06,241 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:14:06,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:14:06,242 INFO L225 Difference]: With dead ends: 107 [2020-10-16 12:14:06,242 INFO L226 Difference]: Without dead ends: 88 [2020-10-16 12:14:06,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:14:06,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-16 12:14:06,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 65. [2020-10-16 12:14:06,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-16 12:14:06,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 102 transitions. [2020-10-16 12:14:06,245 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 102 transitions. Word has length 22 [2020-10-16 12:14:06,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:14:06,245 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 102 transitions. [2020-10-16 12:14:06,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:14:06,245 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 102 transitions. [2020-10-16 12:14:06,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:14:06,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:14:06,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:14:06,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-16 12:14:06,246 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:14:06,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:14:06,246 INFO L82 PathProgramCache]: Analyzing trace with hash -305746167, now seen corresponding path program 25 times [2020-10-16 12:14:06,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:14:06,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855251275] [2020-10-16 12:14:06,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:14:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:14:07,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:14:07,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855251275] [2020-10-16 12:14:07,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:14:07,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:14:07,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212976384] [2020-10-16 12:14:07,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:14:07,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:14:07,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:14:07,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:14:07,348 INFO L87 Difference]: Start difference. First operand 65 states and 102 transitions. Second operand 14 states. [2020-10-16 12:14:08,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:14:08,251 INFO L93 Difference]: Finished difference Result 95 states and 147 transitions. [2020-10-16 12:14:08,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:14:08,255 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:14:08,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:14:08,255 INFO L225 Difference]: With dead ends: 95 [2020-10-16 12:14:08,256 INFO L226 Difference]: Without dead ends: 59 [2020-10-16 12:14:08,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:14:08,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-16 12:14:08,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-16 12:14:08,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-16 12:14:08,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 92 transitions. [2020-10-16 12:14:08,258 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 92 transitions. Word has length 22 [2020-10-16 12:14:08,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:14:08,258 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 92 transitions. [2020-10-16 12:14:08,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:14:08,258 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 92 transitions. [2020-10-16 12:14:08,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:14:08,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:14:08,259 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:14:08,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-16 12:14:08,259 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:14:08,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:14:08,259 INFO L82 PathProgramCache]: Analyzing trace with hash -2008695741, now seen corresponding path program 26 times [2020-10-16 12:14:08,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:14:08,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227296982] [2020-10-16 12:14:08,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:14:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:14:09,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:14:09,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227296982] [2020-10-16 12:14:09,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:14:09,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:14:09,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190361018] [2020-10-16 12:14:09,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:14:09,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:14:09,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:14:09,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:14:09,100 INFO L87 Difference]: Start difference. First operand 59 states and 92 transitions. Second operand 14 states. [2020-10-16 12:14:10,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:14:10,134 INFO L93 Difference]: Finished difference Result 88 states and 136 transitions. [2020-10-16 12:14:10,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:14:10,134 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:14:10,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:14:10,135 INFO L225 Difference]: With dead ends: 88 [2020-10-16 12:14:10,135 INFO L226 Difference]: Without dead ends: 63 [2020-10-16 12:14:10,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:14:10,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-16 12:14:10,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2020-10-16 12:14:10,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-16 12:14:10,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 90 transitions. [2020-10-16 12:14:10,137 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 90 transitions. Word has length 22 [2020-10-16 12:14:10,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:14:10,138 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 90 transitions. [2020-10-16 12:14:10,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:14:10,138 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 90 transitions. [2020-10-16 12:14:10,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:14:10,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:14:10,139 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:14:10,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-16 12:14:10,139 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:14:10,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:14:10,139 INFO L82 PathProgramCache]: Analyzing trace with hash 287585121, now seen corresponding path program 27 times [2020-10-16 12:14:10,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:14:10,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644789255] [2020-10-16 12:14:10,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:14:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:14:11,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:14:11,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644789255] [2020-10-16 12:14:11,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:14:11,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:14:11,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165892764] [2020-10-16 12:14:11,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:14:11,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:14:11,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:14:11,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:14:11,063 INFO L87 Difference]: Start difference. First operand 59 states and 90 transitions. Second operand 14 states. [2020-10-16 12:14:12,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:14:12,114 INFO L93 Difference]: Finished difference Result 85 states and 125 transitions. [2020-10-16 12:14:12,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-16 12:14:12,115 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:14:12,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:14:12,116 INFO L225 Difference]: With dead ends: 85 [2020-10-16 12:14:12,116 INFO L226 Difference]: Without dead ends: 68 [2020-10-16 12:14:12,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-10-16 12:14:12,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-16 12:14:12,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 59. [2020-10-16 12:14:12,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-16 12:14:12,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 88 transitions. [2020-10-16 12:14:12,120 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 88 transitions. Word has length 22 [2020-10-16 12:14:12,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:14:12,120 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 88 transitions. [2020-10-16 12:14:12,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:14:12,120 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 88 transitions. [2020-10-16 12:14:12,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:14:12,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:14:12,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:14:12,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-16 12:14:12,121 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:14:12,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:14:12,121 INFO L82 PathProgramCache]: Analyzing trace with hash -659775199, now seen corresponding path program 28 times [2020-10-16 12:14:12,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:14:12,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643881812] [2020-10-16 12:14:12,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:14:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:14:12,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:14:12,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643881812] [2020-10-16 12:14:12,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:14:12,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:14:12,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664929580] [2020-10-16 12:14:12,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:14:12,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:14:12,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:14:12,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:14:12,930 INFO L87 Difference]: Start difference. First operand 59 states and 88 transitions. Second operand 14 states. [2020-10-16 12:14:13,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:14:13,808 INFO L93 Difference]: Finished difference Result 77 states and 109 transitions. [2020-10-16 12:14:13,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 12:14:13,809 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:14:13,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:14:13,809 INFO L225 Difference]: With dead ends: 77 [2020-10-16 12:14:13,810 INFO L226 Difference]: Without dead ends: 58 [2020-10-16 12:14:13,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:14:13,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-16 12:14:13,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 49. [2020-10-16 12:14:13,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-16 12:14:13,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 72 transitions. [2020-10-16 12:14:13,812 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 72 transitions. Word has length 22 [2020-10-16 12:14:13,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:14:13,813 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 72 transitions. [2020-10-16 12:14:13,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:14:13,813 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 72 transitions. [2020-10-16 12:14:13,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:14:13,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:14:13,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:14:13,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-16 12:14:13,814 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:14:13,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:14:13,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1650897763, now seen corresponding path program 29 times [2020-10-16 12:14:13,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:14:13,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188869408] [2020-10-16 12:14:13,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:14:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:14:14,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:14:14,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188869408] [2020-10-16 12:14:14,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:14:14,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:14:14,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942891210] [2020-10-16 12:14:14,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:14:14,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:14:14,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:14:14,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:14:14,699 INFO L87 Difference]: Start difference. First operand 49 states and 72 transitions. Second operand 14 states. [2020-10-16 12:14:15,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:14:15,526 INFO L93 Difference]: Finished difference Result 48 states and 71 transitions. [2020-10-16 12:14:15,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:14:15,527 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:14:15,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:14:15,528 INFO L225 Difference]: With dead ends: 48 [2020-10-16 12:14:15,528 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 12:14:15,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:14:15,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 12:14:15,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 12:14:15,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 12:14:15,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 12:14:15,529 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-10-16 12:14:15,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:14:15,529 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 12:14:15,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:14:15,530 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 12:14:15,530 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 12:14:15,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-16 12:14:15,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:14:15 BasicIcfg [2020-10-16 12:14:15,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:14:15,535 INFO L168 Benchmark]: Toolchain (without parser) took 73273.57 ms. Allocated memory was 144.7 MB in the beginning and 588.8 MB in the end (delta: 444.1 MB). Free memory was 96.6 MB in the beginning and 364.6 MB in the end (delta: -268.0 MB). Peak memory consumption was 176.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:14:15,536 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 144.7 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-10-16 12:14:15,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1518.02 ms. Allocated memory was 144.7 MB in the beginning and 231.2 MB in the end (delta: 86.5 MB). Free memory was 96.4 MB in the beginning and 168.3 MB in the end (delta: -71.9 MB). Peak memory consumption was 76.9 MB. Max. memory is 7.1 GB. [2020-10-16 12:14:15,536 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.06 ms. Allocated memory is still 231.2 MB. Free memory was 168.3 MB in the beginning and 165.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-16 12:14:15,537 INFO L168 Benchmark]: Boogie Preprocessor took 52.72 ms. Allocated memory is still 231.2 MB. Free memory was 165.3 MB in the beginning and 162.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-16 12:14:15,537 INFO L168 Benchmark]: RCFGBuilder took 908.48 ms. Allocated memory is still 231.2 MB. Free memory was 162.4 MB in the beginning and 114.1 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB. [2020-10-16 12:14:15,538 INFO L168 Benchmark]: TraceAbstraction took 70672.28 ms. Allocated memory was 231.2 MB in the beginning and 588.8 MB in the end (delta: 357.6 MB). Free memory was 112.7 MB in the beginning and 364.6 MB in the end (delta: -251.9 MB). Peak memory consumption was 105.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:14:15,540 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 144.7 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1518.02 ms. Allocated memory was 144.7 MB in the beginning and 231.2 MB in the end (delta: 86.5 MB). Free memory was 96.4 MB in the beginning and 168.3 MB in the end (delta: -71.9 MB). Peak memory consumption was 76.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 115.06 ms. Allocated memory is still 231.2 MB. Free memory was 168.3 MB in the beginning and 165.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.72 ms. Allocated memory is still 231.2 MB. Free memory was 165.3 MB in the beginning and 162.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 908.48 ms. Allocated memory is still 231.2 MB. Free memory was 162.4 MB in the beginning and 114.1 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 70672.28 ms. Allocated memory was 231.2 MB in the beginning and 588.8 MB in the end (delta: 357.6 MB). Free memory was 112.7 MB in the beginning and 364.6 MB in the end (delta: -251.9 MB). Peak memory consumption was 105.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1484 VarBasedMoverChecksPositive, 43 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 82 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 8.9s, 151 PlacesBefore, 41 PlacesAfterwards, 155 TransitionsBefore, 40 TransitionsAfterwards, 2884 CoEnabledTransitionPairs, 7 FixpointIterations, 87 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 17 ConcurrentYvCompositions, 5 ChoiceCompositions, 167 TotalNumberOfCompositions, 6656 MoverChecksTotal - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 130 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 70.4s, OverallIterations: 41, TraceHistogramMax: 1, AutomataDifference: 31.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.0s, HoareTripleCheckerStatistics: 872 SDtfs, 1670 SDslu, 4159 SDs, 0 SdLazy, 10710 SolverSat, 860 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 751 GetRequests, 25 SyntacticMatches, 72 SemanticMatches, 654 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1344 ImplicationChecksByTransitivity, 39.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=482occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 41 MinimizatonAttempts, 574 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 27.5s InterpolantComputationTime, 835 NumberOfCodeBlocks, 835 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 794 ConstructedInterpolants, 0 QuantifiedInterpolants, 408646 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 41 InterpolantComputations, 41 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...