/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-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:17:54,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:17:54,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:17:54,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:17:54,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:17:54,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:17:54,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:17:54,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:17:54,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:17:54,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:17:54,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:17:54,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:17:54,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:17:54,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:17:54,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:17:54,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:17:54,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:17:54,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:17:54,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:17:54,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:17:54,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:17:54,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:17:54,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:17:54,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:17:54,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 02:17:54,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:17:54,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:17:54,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:17:54,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:17:54,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:17:54,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:17:54,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:17:54,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:17:54,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:17:54,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:17:54,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:17:54,714 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 02:17:54,765 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:17:54,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:17:54,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:17:54,767 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:17:54,767 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:17:54,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:17:54,767 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:17:54,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:17:54,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:17:54,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:17:54,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:17:54,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:17:54,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:17:54,769 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:17:54,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:17:54,769 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:17:54,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:17:54,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:17:54,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:17:54,770 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:17:54,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:17:54,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:17:54,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:17:54,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:17:54,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:17:54,771 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:17:54,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:17:54,771 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:17:54,772 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:17:54,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:17:54,772 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:17:55,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:17:55,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:17:55,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:17:55,121 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:17:55,121 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:17:55,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i [2020-10-22 02:17:55,183 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6f85da66/52ebc455d39846058766d33399da2e50/FLAG5bf803241 [2020-10-22 02:17:55,779 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:17:55,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i [2020-10-22 02:17:55,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6f85da66/52ebc455d39846058766d33399da2e50/FLAG5bf803241 [2020-10-22 02:17:56,052 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6f85da66/52ebc455d39846058766d33399da2e50 [2020-10-22 02:17:56,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:17:56,070 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:17:56,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:17:56,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:17:56,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:17:56,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:17:56" (1/1) ... [2020-10-22 02:17:56,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d8ecad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:17:56, skipping insertion in model container [2020-10-22 02:17:56,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:17:56" (1/1) ... [2020-10-22 02:17:56,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:17:56,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:17:56,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:17:56,665 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:17:56,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:17:56,821 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:17:56,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:17:56 WrapperNode [2020-10-22 02:17:56,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:17:56,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:17:56,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:17:56,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:17:56,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:17:56" (1/1) ... [2020-10-22 02:17:56,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:17:56" (1/1) ... [2020-10-22 02:17:56,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:17:56,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:17:56,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:17:56,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:17:56,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:17:56" (1/1) ... [2020-10-22 02:17:56,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:17:56" (1/1) ... [2020-10-22 02:17:56,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:17:56" (1/1) ... [2020-10-22 02:17:56,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:17:56" (1/1) ... [2020-10-22 02:17:56,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:17:56" (1/1) ... [2020-10-22 02:17:56,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:17:56" (1/1) ... [2020-10-22 02:17:56,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:17:56" (1/1) ... [2020-10-22 02:17:56,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:17:56,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:17:56,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:17:56,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:17:56,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:17:56" (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 [2020-10-22 02:17:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:17:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:17:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:17:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:17:56,980 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:17:56,980 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:17:56,980 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:17:56,980 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:17:56,980 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 02:17:56,981 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 02:17:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:17:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:17:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:17:56,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:17:56,983 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:17:57,399 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:17:57,400 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:17:57,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:17:57 BoogieIcfgContainer [2020-10-22 02:17:57,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:17:57,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:17:57,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:17:57,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:17:57,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:17:56" (1/3) ... [2020-10-22 02:17:57,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fdaaba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:17:57, skipping insertion in model container [2020-10-22 02:17:57,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:17:56" (2/3) ... [2020-10-22 02:17:57,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fdaaba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:17:57, skipping insertion in model container [2020-10-22 02:17:57,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:17:57" (3/3) ... [2020-10-22 02:17:57,412 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc.i [2020-10-22 02:17:57,424 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:17:57,424 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:17:57,433 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:17:57,434 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:17:57,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,465 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,465 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,467 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,467 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,468 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,468 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,469 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,469 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,474 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,474 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,480 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,480 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,487 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,487 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,487 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,487 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:17:57,489 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:17:57,504 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 02:17:57,524 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:17:57,525 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:17:57,525 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:17:57,525 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:17:57,525 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:17:57,525 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:17:57,525 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:17:57,526 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:17:57,539 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:17:57,540 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 02:17:57,542 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 02:17:57,544 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-22 02:17:57,590 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-22 02:17:57,591 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:17:57,597 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-22 02:17:57,600 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 02:17:59,377 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-10-22 02:17:59,517 INFO L131 LiptonReduction]: Checked pairs total: 2926 [2020-10-22 02:17:59,517 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-10-22 02:17:59,524 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-22 02:17:59,551 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-22 02:17:59,554 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-22 02:17:59,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:17:59,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:17:59,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:17:59,563 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:17:59,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:17:59,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1098074663, now seen corresponding path program 1 times [2020-10-22 02:17:59,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:17:59,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111362099] [2020-10-22 02:17:59,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:17:59,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:17:59,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:17:59,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111362099] [2020-10-22 02:17:59,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:17:59,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:17:59,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [590424419] [2020-10-22 02:17:59,826 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:17:59,829 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:17:59,844 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 02:17:59,844 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:17:59,849 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:17:59,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:17:59,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:17:59,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:17:59,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:17:59,867 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-22 02:17:59,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:17:59,916 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-22 02:17:59,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:17:59,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-22 02:17:59,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:17:59,946 INFO L225 Difference]: With dead ends: 282 [2020-10-22 02:17:59,946 INFO L226 Difference]: Without dead ends: 218 [2020-10-22 02:17:59,947 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 [2020-10-22 02:17:59,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-22 02:18:00,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-22 02:18:00,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-22 02:18:00,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-22 02:18:00,029 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-22 02:18:00,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:00,031 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-22 02:18:00,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:18:00,031 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-22 02:18:00,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 02:18:00,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:00,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:00,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:18:00,033 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:00,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:00,034 INFO L82 PathProgramCache]: Analyzing trace with hash 305615834, now seen corresponding path program 1 times [2020-10-22 02:18:00,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:00,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505042206] [2020-10-22 02:18:00,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:00,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:18:00,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505042206] [2020-10-22 02:18:00,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:00,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:18:00,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1176327585] [2020-10-22 02:18:00,124 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:00,125 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:00,130 INFO L252 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-10-22 02:18:00,130 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:00,173 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:00,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:18:00,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:00,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:18:00,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:18:00,176 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-10-22 02:18:00,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:00,211 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-22 02:18:00,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:18:00,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-22 02:18:00,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:00,220 INFO L225 Difference]: With dead ends: 202 [2020-10-22 02:18:00,220 INFO L226 Difference]: Without dead ends: 202 [2020-10-22 02:18:00,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:18:00,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-22 02:18:00,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-22 02:18:00,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-22 02:18:00,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-22 02:18:00,258 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-22 02:18:00,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:00,258 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-22 02:18:00,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:18:00,258 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-22 02:18:00,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:18:00,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:00,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:00,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:18:00,260 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:00,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:00,261 INFO L82 PathProgramCache]: Analyzing trace with hash 839872088, now seen corresponding path program 1 times [2020-10-22 02:18:00,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:00,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915181884] [2020-10-22 02:18:00,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:00,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:18:00,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915181884] [2020-10-22 02:18:00,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:00,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:18:00,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1753582946] [2020-10-22 02:18:00,352 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:00,353 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:00,355 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2020-10-22 02:18:00,356 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:00,418 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:00,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:18:00,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:00,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:18:00,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:18:00,419 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-22 02:18:00,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:00,429 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-10-22 02:18:00,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:18:00,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-22 02:18:00,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:00,432 INFO L225 Difference]: With dead ends: 194 [2020-10-22 02:18:00,432 INFO L226 Difference]: Without dead ends: 194 [2020-10-22 02:18:00,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:18:00,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-22 02:18:00,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-10-22 02:18:00,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-22 02:18:00,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 518 transitions. [2020-10-22 02:18:00,446 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 518 transitions. Word has length 10 [2020-10-22 02:18:00,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:00,446 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 518 transitions. [2020-10-22 02:18:00,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:18:00,446 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-10-22 02:18:00,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 02:18:00,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:00,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:00,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:18:00,449 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:00,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:00,449 INFO L82 PathProgramCache]: Analyzing trace with hash 266199867, now seen corresponding path program 1 times [2020-10-22 02:18:00,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:00,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719189602] [2020-10-22 02:18:00,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:00,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:18:00,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719189602] [2020-10-22 02:18:00,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:00,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:18:00,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [716816365] [2020-10-22 02:18:00,529 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:00,530 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:00,532 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-10-22 02:18:00,533 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:00,603 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:00,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:18:00,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:00,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:18:00,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:18:00,604 INFO L87 Difference]: Start difference. First operand 194 states and 518 transitions. Second operand 4 states. [2020-10-22 02:18:00,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:00,640 INFO L93 Difference]: Finished difference Result 225 states and 557 transitions. [2020-10-22 02:18:00,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:18:00,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-22 02:18:00,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:00,646 INFO L225 Difference]: With dead ends: 225 [2020-10-22 02:18:00,646 INFO L226 Difference]: Without dead ends: 161 [2020-10-22 02:18:00,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:18:00,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-10-22 02:18:00,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2020-10-22 02:18:00,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-10-22 02:18:00,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 386 transitions. [2020-10-22 02:18:00,662 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 386 transitions. Word has length 11 [2020-10-22 02:18:00,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:00,663 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 386 transitions. [2020-10-22 02:18:00,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:18:00,663 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 386 transitions. [2020-10-22 02:18:00,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 02:18:00,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:00,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:00,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:18:00,665 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:00,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:00,666 INFO L82 PathProgramCache]: Analyzing trace with hash -297551950, now seen corresponding path program 1 times [2020-10-22 02:18:00,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:00,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578224157] [2020-10-22 02:18:00,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:00,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:18:00,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578224157] [2020-10-22 02:18:00,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:00,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:18:00,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [479652225] [2020-10-22 02:18:00,777 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:00,778 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:00,780 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-10-22 02:18:00,780 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:00,866 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3158#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:18:00,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-22 02:18:00,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:00,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-22 02:18:00,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-22 02:18:00,867 INFO L87 Difference]: Start difference. First operand 161 states and 386 transitions. Second operand 6 states. [2020-10-22 02:18:00,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:00,918 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-10-22 02:18:00,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:18:00,918 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-10-22 02:18:00,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:00,919 INFO L225 Difference]: With dead ends: 160 [2020-10-22 02:18:00,920 INFO L226 Difference]: Without dead ends: 123 [2020-10-22 02:18:00,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:18:00,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-22 02:18:00,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-10-22 02:18:00,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-22 02:18:00,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-10-22 02:18:00,925 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 12 [2020-10-22 02:18:00,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:00,926 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-10-22 02:18:00,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-22 02:18:00,926 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-10-22 02:18:00,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:18:00,927 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:00,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:00,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:18:00,928 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:00,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:00,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1813731877, now seen corresponding path program 1 times [2020-10-22 02:18:00,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:00,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267271520] [2020-10-22 02:18:00,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:01,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:18:01,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267271520] [2020-10-22 02:18:01,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:01,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:18:01,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [719092841] [2020-10-22 02:18:01,016 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:01,019 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:01,022 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2020-10-22 02:18:01,022 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:01,093 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3573#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:18:01,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 02:18:01,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:01,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 02:18:01,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:18:01,095 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 7 states. [2020-10-22 02:18:01,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:01,146 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-10-22 02:18:01,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:18:01,146 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-22 02:18:01,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:01,147 INFO L225 Difference]: With dead ends: 118 [2020-10-22 02:18:01,147 INFO L226 Difference]: Without dead ends: 108 [2020-10-22 02:18:01,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:18:01,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-22 02:18:01,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-22 02:18:01,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-22 02:18:01,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-10-22 02:18:01,153 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-10-22 02:18:01,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:01,153 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-10-22 02:18:01,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 02:18:01,153 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-10-22 02:18:01,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:18:01,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:01,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:01,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:18:01,155 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:01,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:01,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1641541318, now seen corresponding path program 1 times [2020-10-22 02:18:01,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:01,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965507398] [2020-10-22 02:18:01,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:01,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:18:01,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965507398] [2020-10-22 02:18:01,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:01,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:18:01,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [206690737] [2020-10-22 02:18:01,220 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:01,223 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:01,231 INFO L252 McrAutomatonBuilder]: Finished intersection with 54 states and 100 transitions. [2020-10-22 02:18:01,232 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:01,555 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:01,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:18:01,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:01,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:18:01,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:18:01,556 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-10-22 02:18:01,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:01,582 INFO L93 Difference]: Finished difference Result 133 states and 287 transitions. [2020-10-22 02:18:01,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:18:01,583 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:18:01,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:01,584 INFO L225 Difference]: With dead ends: 133 [2020-10-22 02:18:01,584 INFO L226 Difference]: Without dead ends: 84 [2020-10-22 02:18:01,584 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:18:01,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-22 02:18:01,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-22 02:18:01,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-22 02:18:01,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 174 transitions. [2020-10-22 02:18:01,588 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 174 transitions. Word has length 17 [2020-10-22 02:18:01,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:01,588 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 174 transitions. [2020-10-22 02:18:01,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:18:01,588 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 174 transitions. [2020-10-22 02:18:01,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:18:01,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:01,589 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:01,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 02:18:01,590 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:01,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:01,590 INFO L82 PathProgramCache]: Analyzing trace with hash -810832998, now seen corresponding path program 2 times [2020-10-22 02:18:01,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:01,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280097726] [2020-10-22 02:18:01,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:01,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:18:01,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280097726] [2020-10-22 02:18:01,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:01,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:18:01,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [908791474] [2020-10-22 02:18:01,630 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:01,632 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:01,639 INFO L252 McrAutomatonBuilder]: Finished intersection with 42 states and 69 transitions. [2020-10-22 02:18:01,639 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:01,806 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:01,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:18:01,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:01,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:18:01,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:18:01,808 INFO L87 Difference]: Start difference. First operand 84 states and 174 transitions. Second operand 4 states. [2020-10-22 02:18:01,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:01,827 INFO L93 Difference]: Finished difference Result 121 states and 247 transitions. [2020-10-22 02:18:01,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:18:01,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:18:01,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:01,829 INFO L225 Difference]: With dead ends: 121 [2020-10-22 02:18:01,829 INFO L226 Difference]: Without dead ends: 72 [2020-10-22 02:18:01,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:18:01,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-22 02:18:01,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-22 02:18:01,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-22 02:18:01,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 140 transitions. [2020-10-22 02:18:01,832 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 140 transitions. Word has length 17 [2020-10-22 02:18:01,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:01,832 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 140 transitions. [2020-10-22 02:18:01,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:18:01,833 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 140 transitions. [2020-10-22 02:18:01,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:18:01,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:01,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:01,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 02:18:01,834 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:01,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:01,834 INFO L82 PathProgramCache]: Analyzing trace with hash -534648938, now seen corresponding path program 3 times [2020-10-22 02:18:01,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:01,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676957826] [2020-10-22 02:18:01,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:01,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:18:01,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676957826] [2020-10-22 02:18:01,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:01,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:18:01,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [970242141] [2020-10-22 02:18:01,868 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:01,870 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:01,877 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 77 transitions. [2020-10-22 02:18:01,877 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:02,169 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:02,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:18:02,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:02,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:18:02,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:18:02,170 INFO L87 Difference]: Start difference. First operand 72 states and 140 transitions. Second operand 4 states. [2020-10-22 02:18:02,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:02,186 INFO L93 Difference]: Finished difference Result 91 states and 172 transitions. [2020-10-22 02:18:02,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:18:02,186 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:18:02,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:02,187 INFO L225 Difference]: With dead ends: 91 [2020-10-22 02:18:02,187 INFO L226 Difference]: Without dead ends: 30 [2020-10-22 02:18:02,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:18:02,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-22 02:18:02,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-22 02:18:02,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-22 02:18:02,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-22 02:18:02,189 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-22 02:18:02,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:02,190 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-22 02:18:02,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:18:02,190 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-22 02:18:02,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:18:02,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:02,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:02,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 02:18:02,191 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:02,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:02,191 INFO L82 PathProgramCache]: Analyzing trace with hash 172930902, now seen corresponding path program 4 times [2020-10-22 02:18:02,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:02,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503918700] [2020-10-22 02:18:02,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:02,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:18:02,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503918700] [2020-10-22 02:18:02,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:02,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:18:02,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [442801317] [2020-10-22 02:18:02,231 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:02,233 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:02,239 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 29 transitions. [2020-10-22 02:18:02,239 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:02,304 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:02,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:18:02,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:02,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:18:02,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:18:02,306 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-22 02:18:02,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:02,320 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-22 02:18:02,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:18:02,321 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:18:02,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:02,321 INFO L225 Difference]: With dead ends: 29 [2020-10-22 02:18:02,321 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:18:02,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:18:02,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:18:02,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:18:02,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:18:02,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:18:02,322 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-22 02:18:02,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:02,323 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:18:02,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:18:02,323 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:18:02,323 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:18:02,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-22 02:18:02,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:18:02 BasicIcfg [2020-10-22 02:18:02,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:18:02,329 INFO L168 Benchmark]: Toolchain (without parser) took 6265.09 ms. Allocated memory was 138.4 MB in the beginning and 292.0 MB in the end (delta: 153.6 MB). Free memory was 99.8 MB in the beginning and 107.8 MB in the end (delta: -7.9 MB). Peak memory consumption was 145.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:02,330 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 02:18:02,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.38 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.0 MB in the beginning and 155.5 MB in the end (delta: -56.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:02,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.69 ms. Allocated memory is still 201.3 MB. Free memory was 155.5 MB in the beginning and 152.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:02,333 INFO L168 Benchmark]: Boogie Preprocessor took 31.18 ms. Allocated memory is still 201.3 MB. Free memory was 152.8 MB in the beginning and 151.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:02,333 INFO L168 Benchmark]: RCFGBuilder took 494.40 ms. Allocated memory is still 201.3 MB. Free memory was 151.4 MB in the beginning and 127.1 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:02,334 INFO L168 Benchmark]: TraceAbstraction took 4923.66 ms. Allocated memory was 201.3 MB in the beginning and 292.0 MB in the end (delta: 90.7 MB). Free memory was 127.1 MB in the beginning and 107.8 MB in the end (delta: 19.4 MB). Peak memory consumption was 110.1 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:02,338 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 751.38 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.0 MB in the beginning and 155.5 MB in the end (delta: -56.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.69 ms. Allocated memory is still 201.3 MB. Free memory was 155.5 MB in the beginning and 152.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.18 ms. Allocated memory is still 201.3 MB. Free memory was 152.8 MB in the beginning and 151.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 494.40 ms. Allocated memory is still 201.3 MB. Free memory was 151.4 MB in the beginning and 127.1 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4923.66 ms. Allocated memory was 201.3 MB in the beginning and 292.0 MB in the end (delta: 90.7 MB). Free memory was 127.1 MB in the beginning and 107.8 MB in the end (delta: 19.4 MB). Peak memory consumption was 110.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 787 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 52 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 86 PlacesBefore, 31 PlacesAfterwards, 79 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 72 TotalNumberOfCompositions, 2926 MoverChecksTotal - PositiveResult [Line: 17]: 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 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 209 SDtfs, 137 SDslu, 268 SDs, 0 SdLazy, 138 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 4448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...