/usr/bin/java -Xmx16000000000 -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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:13:08,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:13:08,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:13:08,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:13:08,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:13:08,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:13:08,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:13:08,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:13:08,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:13:08,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:13:08,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:13:08,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:13:08,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:13:08,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:13:08,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:13:08,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:13:08,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:13:08,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:13:08,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:13:08,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:13:08,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:13:08,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:13:08,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:13:08,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:13:08,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:13:08,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:13:08,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:13:08,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:13:08,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:13:08,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:13:08,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:13:08,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:13:08,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:13:08,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:13:08,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:13:08,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:13:08,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:13:08,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:13:08,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:13:08,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:13:08,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:13:08,820 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 22:13:08,842 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:13:08,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:13:08,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:13:08,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:13:08,844 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:13:08,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:13:08,845 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:13:08,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:13:08,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:13:08,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:13:08,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:13:08,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:13:08,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:13:08,846 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:13:08,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:13:08,846 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:13:08,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:13:08,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:13:08,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:13:08,847 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:13:08,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:13:08,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:13:08,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:13:08,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:13:08,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:13:08,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:13:08,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:13:08,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:13:08,849 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:13:09,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:13:09,168 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:13:09,172 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:13:09,174 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:13:09,175 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:13:09,175 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2020-10-15 22:13:09,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c04f6c9ed/b3a5d20d5c09488c923b12ccf31d9c19/FLAG3ee19d5ad [2020-10-15 22:13:09,813 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:13:09,813 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2020-10-15 22:13:09,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c04f6c9ed/b3a5d20d5c09488c923b12ccf31d9c19/FLAG3ee19d5ad [2020-10-15 22:13:10,102 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c04f6c9ed/b3a5d20d5c09488c923b12ccf31d9c19 [2020-10-15 22:13:10,110 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:13:10,112 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:13:10,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:13:10,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:13:10,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:13:10,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:13:10" (1/1) ... [2020-10-15 22:13:10,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d1c832f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:10, skipping insertion in model container [2020-10-15 22:13:10,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:13:10" (1/1) ... [2020-10-15 22:13:10,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:13:10,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:13:10,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:13:10,688 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:13:10,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:13:10,828 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:13:10,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:10 WrapperNode [2020-10-15 22:13:10,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:13:10,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:13:10,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:13:10,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:13:10,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:10" (1/1) ... [2020-10-15 22:13:10,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:10" (1/1) ... [2020-10-15 22:13:10,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:13:10,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:13:10,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:13:10,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:13:10,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:10" (1/1) ... [2020-10-15 22:13:10,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:10" (1/1) ... [2020-10-15 22:13:10,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:10" (1/1) ... [2020-10-15 22:13:10,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:10" (1/1) ... [2020-10-15 22:13:10,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:10" (1/1) ... [2020-10-15 22:13:10,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:10" (1/1) ... [2020-10-15 22:13:10,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:10" (1/1) ... [2020-10-15 22:13:10,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:13:10,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:13:10,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:13:10,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:13:10,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:13:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:13:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:13:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:13:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:13:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:13:10,993 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:13:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:13:10,994 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:13:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:13:10,995 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:13:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-15 22:13:10,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-15 22:13:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:13:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:13:10,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:13:11,000 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:13:11,384 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:13:11,384 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:13:11,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:13:11 BoogieIcfgContainer [2020-10-15 22:13:11,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:13:11,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:13:11,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:13:11,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:13:11,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:13:10" (1/3) ... [2020-10-15 22:13:11,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53718bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:13:11, skipping insertion in model container [2020-10-15 22:13:11,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:10" (2/3) ... [2020-10-15 22:13:11,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53718bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:13:11, skipping insertion in model container [2020-10-15 22:13:11,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:13:11" (3/3) ... [2020-10-15 22:13:11,395 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.opt.i [2020-10-15 22:13:11,407 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:13:11,407 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:13:11,415 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:13:11,416 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:13:11,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,445 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,445 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,446 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,447 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,447 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,447 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,447 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,448 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,448 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,448 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,449 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,449 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,449 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,449 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,450 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,450 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,450 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,450 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,451 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,451 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,455 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,455 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,455 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,456 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,463 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,464 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,469 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,469 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,472 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,472 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,472 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,472 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:11,488 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 22:13:11,509 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:13:11,510 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:13:11,510 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:13:11,510 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:13:11,510 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:13:11,510 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:13:11,510 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:13:11,510 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:13:11,524 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:13:11,527 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-15 22:13:11,530 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-15 22:13:11,532 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-10-15 22:13:11,574 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-10-15 22:13:11,574 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:13:11,579 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-15 22:13:11,583 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-15 22:13:13,266 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-10-15 22:13:13,539 INFO L132 LiptonReduction]: Checked pairs total: 3343 [2020-10-15 22:13:13,540 INFO L134 LiptonReduction]: Total number of compositions: 67 [2020-10-15 22:13:13,548 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-10-15 22:13:13,615 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-15 22:13:13,617 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-15 22:13:13,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:13:13,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:13,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:13,654 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:13,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:13,661 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-10-15 22:13:13,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:13,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444274544] [2020-10-15 22:13:13,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:13,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:13,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444274544] [2020-10-15 22:13:13,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:13,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:13:13,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687255513] [2020-10-15 22:13:13,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:13:13,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:13,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:13:13,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:13,946 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-15 22:13:14,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:14,046 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-15 22:13:14,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:13:14,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 22:13:14,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:14,076 INFO L225 Difference]: With dead ends: 670 [2020-10-15 22:13:14,077 INFO L226 Difference]: Without dead ends: 526 [2020-10-15 22:13:14,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:14,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-15 22:13:14,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-15 22:13:14,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-15 22:13:14,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-15 22:13:14,179 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-15 22:13:14,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:14,180 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-15 22:13:14,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:13:14,180 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-15 22:13:14,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 22:13:14,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:14,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:14,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:13:14,184 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:14,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:14,184 INFO L82 PathProgramCache]: Analyzing trace with hash -2027599793, now seen corresponding path program 1 times [2020-10-15 22:13:14,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:14,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931998677] [2020-10-15 22:13:14,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:14,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:14,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931998677] [2020-10-15 22:13:14,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:14,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:13:14,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976683720] [2020-10-15 22:13:14,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:14,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:14,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:14,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:14,307 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-15 22:13:14,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:14,341 INFO L93 Difference]: Finished difference Result 682 states and 2180 transitions. [2020-10-15 22:13:14,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:13:14,342 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 22:13:14,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:14,347 INFO L225 Difference]: With dead ends: 682 [2020-10-15 22:13:14,347 INFO L226 Difference]: Without dead ends: 394 [2020-10-15 22:13:14,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:14,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-15 22:13:14,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-15 22:13:14,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-15 22:13:14,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1224 transitions. [2020-10-15 22:13:14,379 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1224 transitions. Word has length 11 [2020-10-15 22:13:14,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:14,380 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1224 transitions. [2020-10-15 22:13:14,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:14,380 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1224 transitions. [2020-10-15 22:13:14,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:13:14,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:14,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:14,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:13:14,383 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:14,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:14,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1004375926, now seen corresponding path program 1 times [2020-10-15 22:13:14,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:14,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537735943] [2020-10-15 22:13:14,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:14,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:14,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537735943] [2020-10-15 22:13:14,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:14,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:13:14,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203126536] [2020-10-15 22:13:14,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:13:14,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:14,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:13:14,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:14,442 INFO L87 Difference]: Start difference. First operand 394 states and 1224 transitions. Second operand 3 states. [2020-10-15 22:13:14,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:14,455 INFO L93 Difference]: Finished difference Result 386 states and 1190 transitions. [2020-10-15 22:13:14,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:13:14,455 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-15 22:13:14,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:14,459 INFO L225 Difference]: With dead ends: 386 [2020-10-15 22:13:14,459 INFO L226 Difference]: Without dead ends: 386 [2020-10-15 22:13:14,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:14,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-10-15 22:13:14,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2020-10-15 22:13:14,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-10-15 22:13:14,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 1190 transitions. [2020-10-15 22:13:14,479 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 1190 transitions. Word has length 12 [2020-10-15 22:13:14,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:14,479 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 1190 transitions. [2020-10-15 22:13:14,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:13:14,479 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 1190 transitions. [2020-10-15 22:13:14,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:13:14,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:14,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:14,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:13:14,482 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:14,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:14,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1071238165, now seen corresponding path program 1 times [2020-10-15 22:13:14,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:14,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505770533] [2020-10-15 22:13:14,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:14,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:14,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505770533] [2020-10-15 22:13:14,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:14,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:13:14,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301198691] [2020-10-15 22:13:14,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:13:14,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:14,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:13:14,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:14,546 INFO L87 Difference]: Start difference. First operand 386 states and 1190 transitions. Second operand 3 states. [2020-10-15 22:13:14,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:14,566 INFO L93 Difference]: Finished difference Result 466 states and 1378 transitions. [2020-10-15 22:13:14,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:13:14,567 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-15 22:13:14,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:14,570 INFO L225 Difference]: With dead ends: 466 [2020-10-15 22:13:14,571 INFO L226 Difference]: Without dead ends: 402 [2020-10-15 22:13:14,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:14,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-10-15 22:13:14,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 370. [2020-10-15 22:13:14,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-15 22:13:14,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1098 transitions. [2020-10-15 22:13:14,585 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1098 transitions. Word has length 13 [2020-10-15 22:13:14,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:14,586 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 1098 transitions. [2020-10-15 22:13:14,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:13:14,586 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1098 transitions. [2020-10-15 22:13:14,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:13:14,588 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:14,588 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:14,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:13:14,588 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:14,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:14,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1070883463, now seen corresponding path program 1 times [2020-10-15 22:13:14,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:14,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839837232] [2020-10-15 22:13:14,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:14,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:14,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839837232] [2020-10-15 22:13:14,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:14,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:13:14,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996224080] [2020-10-15 22:13:14,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:13:14,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:14,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:13:14,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:14,631 INFO L87 Difference]: Start difference. First operand 370 states and 1098 transitions. Second operand 3 states. [2020-10-15 22:13:14,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:14,639 INFO L93 Difference]: Finished difference Result 358 states and 1054 transitions. [2020-10-15 22:13:14,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:13:14,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-15 22:13:14,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:14,643 INFO L225 Difference]: With dead ends: 358 [2020-10-15 22:13:14,643 INFO L226 Difference]: Without dead ends: 358 [2020-10-15 22:13:14,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:13:14,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-15 22:13:14,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-10-15 22:13:14,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-10-15 22:13:14,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1054 transitions. [2020-10-15 22:13:14,656 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1054 transitions. Word has length 13 [2020-10-15 22:13:14,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:14,657 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 1054 transitions. [2020-10-15 22:13:14,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:13:14,657 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1054 transitions. [2020-10-15 22:13:14,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:13:14,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:14,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:14,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:13:14,659 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:14,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:14,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1189218785, now seen corresponding path program 1 times [2020-10-15 22:13:14,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:14,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573638067] [2020-10-15 22:13:14,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:14,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:14,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573638067] [2020-10-15 22:13:14,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:14,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:13:14,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182554040] [2020-10-15 22:13:14,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:14,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:14,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:14,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:14,707 INFO L87 Difference]: Start difference. First operand 358 states and 1054 transitions. Second operand 4 states. [2020-10-15 22:13:14,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:14,735 INFO L93 Difference]: Finished difference Result 514 states and 1482 transitions. [2020-10-15 22:13:14,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:13:14,736 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-15 22:13:14,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:14,738 INFO L225 Difference]: With dead ends: 514 [2020-10-15 22:13:14,739 INFO L226 Difference]: Without dead ends: 274 [2020-10-15 22:13:14,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:14,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-15 22:13:14,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-10-15 22:13:14,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-15 22:13:14,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 775 transitions. [2020-10-15 22:13:14,749 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 775 transitions. Word has length 14 [2020-10-15 22:13:14,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:14,749 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 775 transitions. [2020-10-15 22:13:14,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:14,750 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 775 transitions. [2020-10-15 22:13:14,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:13:14,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:14,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:14,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:13:14,751 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:14,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:14,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 2 times [2020-10-15 22:13:14,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:14,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406799821] [2020-10-15 22:13:14,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:14,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406799821] [2020-10-15 22:13:14,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:14,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:13:14,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463600602] [2020-10-15 22:13:14,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:14,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:14,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:14,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:14,838 INFO L87 Difference]: Start difference. First operand 274 states and 775 transitions. Second operand 4 states. [2020-10-15 22:13:14,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:14,901 INFO L93 Difference]: Finished difference Result 345 states and 911 transitions. [2020-10-15 22:13:14,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:13:14,902 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-15 22:13:14,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:14,904 INFO L225 Difference]: With dead ends: 345 [2020-10-15 22:13:14,904 INFO L226 Difference]: Without dead ends: 252 [2020-10-15 22:13:14,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:14,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-15 22:13:14,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-10-15 22:13:14,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-15 22:13:14,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 675 transitions. [2020-10-15 22:13:14,914 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 675 transitions. Word has length 14 [2020-10-15 22:13:14,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:14,914 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 675 transitions. [2020-10-15 22:13:14,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:14,914 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 675 transitions. [2020-10-15 22:13:14,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:13:14,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:14,916 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:14,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:13:14,916 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:14,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:14,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1647463604, now seen corresponding path program 1 times [2020-10-15 22:13:14,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:14,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088833299] [2020-10-15 22:13:14,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:14,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:14,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088833299] [2020-10-15 22:13:14,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:14,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:13:14,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136064766] [2020-10-15 22:13:14,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:13:14,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:14,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:13:14,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:14,989 INFO L87 Difference]: Start difference. First operand 252 states and 675 transitions. Second operand 5 states. [2020-10-15 22:13:15,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:15,040 INFO L93 Difference]: Finished difference Result 278 states and 685 transitions. [2020-10-15 22:13:15,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:13:15,040 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-15 22:13:15,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:15,042 INFO L225 Difference]: With dead ends: 278 [2020-10-15 22:13:15,042 INFO L226 Difference]: Without dead ends: 203 [2020-10-15 22:13:15,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:13:15,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-15 22:13:15,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-10-15 22:13:15,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-15 22:13:15,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 492 transitions. [2020-10-15 22:13:15,050 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 492 transitions. Word has length 15 [2020-10-15 22:13:15,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:15,050 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 492 transitions. [2020-10-15 22:13:15,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:13:15,050 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 492 transitions. [2020-10-15 22:13:15,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 22:13:15,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:15,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:15,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:13:15,052 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:15,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:15,052 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-10-15 22:13:15,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:15,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405270351] [2020-10-15 22:13:15,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:15,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:15,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405270351] [2020-10-15 22:13:15,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:15,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:13:15,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285429755] [2020-10-15 22:13:15,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:13:15,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:15,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:13:15,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:13:15,123 INFO L87 Difference]: Start difference. First operand 203 states and 492 transitions. Second operand 6 states. [2020-10-15 22:13:15,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:15,190 INFO L93 Difference]: Finished difference Result 200 states and 461 transitions. [2020-10-15 22:13:15,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:13:15,191 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-15 22:13:15,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:15,192 INFO L225 Difference]: With dead ends: 200 [2020-10-15 22:13:15,192 INFO L226 Difference]: Without dead ends: 162 [2020-10-15 22:13:15,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:13:15,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-15 22:13:15,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-10-15 22:13:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-15 22:13:15,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 375 transitions. [2020-10-15 22:13:15,199 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 375 transitions. Word has length 16 [2020-10-15 22:13:15,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:15,199 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 375 transitions. [2020-10-15 22:13:15,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:13:15,200 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 375 transitions. [2020-10-15 22:13:15,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 22:13:15,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:15,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:15,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 22:13:15,222 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:15,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:15,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1305224855, now seen corresponding path program 1 times [2020-10-15 22:13:15,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:15,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465815079] [2020-10-15 22:13:15,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:15,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:15,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465815079] [2020-10-15 22:13:15,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:15,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:13:15,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172205308] [2020-10-15 22:13:15,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:15,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:15,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:15,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:15,255 INFO L87 Difference]: Start difference. First operand 162 states and 375 transitions. Second operand 4 states. [2020-10-15 22:13:15,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:15,274 INFO L93 Difference]: Finished difference Result 194 states and 439 transitions. [2020-10-15 22:13:15,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:13:15,274 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-15 22:13:15,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:15,275 INFO L225 Difference]: With dead ends: 194 [2020-10-15 22:13:15,275 INFO L226 Difference]: Without dead ends: 127 [2020-10-15 22:13:15,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:15,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-15 22:13:15,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-10-15 22:13:15,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-15 22:13:15,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-10-15 22:13:15,280 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2020-10-15 22:13:15,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:15,280 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-10-15 22:13:15,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:15,281 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-10-15 22:13:15,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 22:13:15,281 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:15,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:15,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 22:13:15,282 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:15,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:15,282 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 2 times [2020-10-15 22:13:15,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:15,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468630225] [2020-10-15 22:13:15,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:15,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468630225] [2020-10-15 22:13:15,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:15,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:13:15,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747341166] [2020-10-15 22:13:15,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:13:15,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:15,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:13:15,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:13:15,352 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2020-10-15 22:13:15,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:15,415 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-10-15 22:13:15,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 22:13:15,416 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-15 22:13:15,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:15,417 INFO L225 Difference]: With dead ends: 120 [2020-10-15 22:13:15,417 INFO L226 Difference]: Without dead ends: 71 [2020-10-15 22:13:15,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:13:15,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-15 22:13:15,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-15 22:13:15,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-15 22:13:15,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-10-15 22:13:15,420 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-10-15 22:13:15,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:15,421 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-10-15 22:13:15,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:13:15,421 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-10-15 22:13:15,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-15 22:13:15,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:15,422 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] [2020-10-15 22:13:15,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 22:13:15,422 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:15,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:15,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-10-15 22:13:15,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:15,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380229780] [2020-10-15 22:13:15,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:15,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:15,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380229780] [2020-10-15 22:13:15,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:15,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:13:15,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158843018] [2020-10-15 22:13:15,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:15,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:15,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:15,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:15,460 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-10-15 22:13:15,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:15,472 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-10-15 22:13:15,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:13:15,472 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-15 22:13:15,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:15,472 INFO L225 Difference]: With dead ends: 70 [2020-10-15 22:13:15,473 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:13:15,473 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 [2020-10-15 22:13:15,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:13:15,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:13:15,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:13:15,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:13:15,474 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-15 22:13:15,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:15,474 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:13:15,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:15,474 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:13:15,474 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:13:15,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 22:13:15,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:13:15 BasicIcfg [2020-10-15 22:13:15,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:13:15,480 INFO L168 Benchmark]: Toolchain (without parser) took 5368.76 ms. Allocated memory was 244.8 MB in the beginning and 436.7 MB in the end (delta: 191.9 MB). Free memory was 200.6 MB in the beginning and 354.6 MB in the end (delta: -154.0 MB). Peak memory consumption was 37.9 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:15,481 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 244.8 MB. Free memory is still 221.2 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:13:15,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.72 ms. Allocated memory was 244.8 MB in the beginning and 295.7 MB in the end (delta: 50.9 MB). Free memory was 200.6 MB in the beginning and 248.9 MB in the end (delta: -48.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:15,482 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.03 ms. Allocated memory is still 295.7 MB. Free memory was 248.9 MB in the beginning and 246.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:15,483 INFO L168 Benchmark]: Boogie Preprocessor took 26.27 ms. Allocated memory is still 295.7 MB. Free memory was 246.4 MB in the beginning and 243.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:15,484 INFO L168 Benchmark]: RCFGBuilder took 472.93 ms. Allocated memory is still 295.7 MB. Free memory was 243.8 MB in the beginning and 219.1 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:15,485 INFO L168 Benchmark]: TraceAbstraction took 4090.44 ms. Allocated memory was 295.7 MB in the beginning and 436.7 MB in the end (delta: 141.0 MB). Free memory was 219.1 MB in the beginning and 354.6 MB in the end (delta: -135.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:15,488 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 244.8 MB. Free memory is still 221.2 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 717.72 ms. Allocated memory was 244.8 MB in the beginning and 295.7 MB in the end (delta: 50.9 MB). Free memory was 200.6 MB in the beginning and 248.9 MB in the end (delta: -48.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 56.03 ms. Allocated memory is still 295.7 MB. Free memory was 248.9 MB in the beginning and 246.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.27 ms. Allocated memory is still 295.7 MB. Free memory was 246.4 MB in the beginning and 243.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 472.93 ms. Allocated memory is still 295.7 MB. Free memory was 243.8 MB in the beginning and 219.1 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4090.44 ms. Allocated memory was 295.7 MB in the beginning and 436.7 MB in the end (delta: 141.0 MB). Free memory was 219.1 MB in the beginning and 354.6 MB in the end (delta: -135.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1203 VarBasedMoverChecksPositive, 62 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 104 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 92 PlacesBefore, 38 PlacesAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 67 TotalNumberOfCompositions, 3343 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 258 SDtfs, 237 SDslu, 349 SDs, 0 SdLazy, 196 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 34 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 6430 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...