/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-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 22:32:54,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 22:32:54,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 22:32:54,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 22:32:54,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 22:32:54,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 22:32:54,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 22:32:54,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 22:32:54,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 22:32:54,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 22:32:54,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 22:32:54,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 22:32:54,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 22:32:54,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 22:32:54,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 22:32:54,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 22:32:54,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 22:32:54,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 22:32:54,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 22:32:54,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 22:32:54,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 22:32:54,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 22:32:54,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 22:32:54,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 22:32:54,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-15 22:32:54,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 22:32:54,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 22:32:54,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 22:32:54,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 22:32:54,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 22:32:54,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 22:32:54,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 22:32:54,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 22:32:54,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 22:32:54,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 22:32:55,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 22:32:55,001 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-15 22:32:55,027 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 22:32:55,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 22:32:55,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 22:32:55,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 22:32:55,029 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 22:32:55,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 22:32:55,030 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 22:32:55,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 22:32:55,030 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 22:32:55,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 22:32:55,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 22:32:55,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 22:32:55,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 22:32:55,031 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 22:32:55,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 22:32:55,032 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 22:32:55,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 22:32:55,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 22:32:55,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 22:32:55,032 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 22:32:55,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 22:32:55,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 22:32:55,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 22:32:55,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-15 22:32:55,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 22:32:55,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 22:32:55,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 22:32:55,034 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-15 22:32:55,034 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-15 22:32:55,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 22:32:55,035 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-15 22:32:55,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 22:32:55,488 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 22:32:55,493 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 22:32:55,495 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 22:32:55,495 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 22:32:55,496 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2020-09-15 22:32:55,586 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abe4f50a2/ebc9cd3ceb904b8295aca2c54735aa84/FLAG25f217999 [2020-09-15 22:32:56,181 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 22:32:56,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2020-09-15 22:32:56,203 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abe4f50a2/ebc9cd3ceb904b8295aca2c54735aa84/FLAG25f217999 [2020-09-15 22:32:56,447 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abe4f50a2/ebc9cd3ceb904b8295aca2c54735aa84 [2020-09-15 22:32:56,458 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 22:32:56,463 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 22:32:56,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 22:32:56,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 22:32:56,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 22:32:56,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:32:56" (1/1) ... [2020-09-15 22:32:56,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14382dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:32:56, skipping insertion in model container [2020-09-15 22:32:56,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:32:56" (1/1) ... [2020-09-15 22:32:56,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 22:32:56,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 22:32:57,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 22:32:57,043 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 22:32:57,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 22:32:57,208 INFO L208 MainTranslator]: Completed translation [2020-09-15 22:32:57,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:32:57 WrapperNode [2020-09-15 22:32:57,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 22:32:57,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 22:32:57,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 22:32:57,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 22:32:57,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:32:57" (1/1) ... [2020-09-15 22:32:57,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:32:57" (1/1) ... [2020-09-15 22:32:57,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 22:32:57,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 22:32:57,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 22:32:57,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 22:32:57,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:32:57" (1/1) ... [2020-09-15 22:32:57,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:32:57" (1/1) ... [2020-09-15 22:32:57,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:32:57" (1/1) ... [2020-09-15 22:32:57,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:32:57" (1/1) ... [2020-09-15 22:32:57,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:32:57" (1/1) ... [2020-09-15 22:32:57,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:32:57" (1/1) ... [2020-09-15 22:32:57,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:32:57" (1/1) ... [2020-09-15 22:32:57,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 22:32:57,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 22:32:57,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 22:32:57,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 22:32:57,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:32:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 22:32:57,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 22:32:57,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-15 22:32:57,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 22:32:57,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 22:32:57,400 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-15 22:32:57,400 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-15 22:32:57,400 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-15 22:32:57,401 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-15 22:32:57,401 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-15 22:32:57,401 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-15 22:32:57,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-15 22:32:57,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 22:32:57,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 22:32:57,405 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 22:32:57,754 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 22:32:57,754 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-15 22:32:57,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:32:57 BoogieIcfgContainer [2020-09-15 22:32:57,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 22:32:57,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 22:32:57,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 22:32:57,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 22:32:57,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 10:32:56" (1/3) ... [2020-09-15 22:32:57,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e1de9a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:32:57, skipping insertion in model container [2020-09-15 22:32:57,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:32:57" (2/3) ... [2020-09-15 22:32:57,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e1de9a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:32:57, skipping insertion in model container [2020-09-15 22:32:57,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:32:57" (3/3) ... [2020-09-15 22:32:57,769 INFO L109 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc.i [2020-09-15 22:32:57,781 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 22:32:57,781 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-15 22:32:57,790 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-15 22:32:57,791 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 22:32:57,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,824 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,824 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,827 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,827 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,828 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,828 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,829 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,829 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,829 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,829 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,832 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,833 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,833 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,833 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,834 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,841 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,841 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,842 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,842 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,857 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,857 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,857 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,858 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,865 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,865 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,865 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,866 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:32:57,897 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-15 22:32:57,919 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 22:32:57,919 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 22:32:57,920 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 22:32:57,920 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-15 22:32:57,920 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 22:32:57,920 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 22:32:57,920 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 22:32:57,921 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 22:32:57,937 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-09-15 22:32:57,939 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-15 22:32:57,991 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-15 22:32:57,991 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 22:32:57,997 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 22:32:58,000 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-15 22:32:58,023 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-15 22:32:58,024 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 22:32:58,024 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 22:32:58,027 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-15 22:32:58,028 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 22:32:59,584 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-09-15 22:32:59,584 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-09-15 22:32:59,588 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-15 22:32:59,615 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-15 22:32:59,617 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-15 22:32:59,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-15 22:32:59,627 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:32:59,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:32:59,628 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:32:59,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:32:59,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-09-15 22:32:59,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:32:59,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089719332] [2020-09-15 22:32:59,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:32:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:32:59,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:32:59,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089719332] [2020-09-15 22:32:59,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:32:59,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 22:32:59,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [359926995] [2020-09-15 22:32:59,902 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:32:59,906 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:32:59,923 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-15 22:32:59,923 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:32:59,926 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:32:59,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 22:32:59,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:32:59,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 22:32:59,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:32:59,948 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-15 22:32:59,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:32:59,986 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-09-15 22:32:59,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 22:32:59,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-15 22:32:59,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:33:00,009 INFO L225 Difference]: With dead ends: 282 [2020-09-15 22:33:00,009 INFO L226 Difference]: Without dead ends: 218 [2020-09-15 22:33:00,011 INFO L675 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 [2020-09-15 22:33:00,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-09-15 22:33:00,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-09-15 22:33:00,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-15 22:33:00,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-09-15 22:33:00,086 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-09-15 22:33:00,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:33:00,087 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-09-15 22:33:00,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 22:33:00,088 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-09-15 22:33:00,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-15 22:33:00,089 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:33:00,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:33:00,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 22:33:00,090 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:33:00,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:33:00,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1298976658, now seen corresponding path program 1 times [2020-09-15 22:33:00,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:33:00,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118547521] [2020-09-15 22:33:00,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:33:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:33:00,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:33:00,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118547521] [2020-09-15 22:33:00,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:33:00,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 22:33:00,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [743191014] [2020-09-15 22:33:00,180 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:33:00,181 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:33:00,183 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-09-15 22:33:00,183 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:33:00,203 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:33:00,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 22:33:00,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:33:00,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 22:33:00,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 22:33:00,206 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-09-15 22:33:00,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:33:00,244 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-09-15 22:33:00,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 22:33:00,247 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-15 22:33:00,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:33:00,249 INFO L225 Difference]: With dead ends: 242 [2020-09-15 22:33:00,249 INFO L226 Difference]: Without dead ends: 146 [2020-09-15 22:33:00,250 INFO L675 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 [2020-09-15 22:33:00,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-15 22:33:00,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-09-15 22:33:00,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-15 22:33:00,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-09-15 22:33:00,263 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-09-15 22:33:00,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:33:00,263 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-09-15 22:33:00,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 22:33:00,263 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-09-15 22:33:00,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-15 22:33:00,265 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:33:00,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:33:00,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 22:33:00,265 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:33:00,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:33:00,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1379708097, now seen corresponding path program 1 times [2020-09-15 22:33:00,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:33:00,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182347962] [2020-09-15 22:33:00,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:33:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:33:00,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:33:00,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182347962] [2020-09-15 22:33:00,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:33:00,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 22:33:00,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [570920910] [2020-09-15 22:33:00,344 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:33:00,346 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:33:00,348 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-09-15 22:33:00,348 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:33:00,364 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:33:00,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 22:33:00,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:33:00,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 22:33:00,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:33:00,365 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-09-15 22:33:00,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:33:00,376 INFO L93 Difference]: Finished difference Result 138 states and 336 transitions. [2020-09-15 22:33:00,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 22:33:00,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-15 22:33:00,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:33:00,379 INFO L225 Difference]: With dead ends: 138 [2020-09-15 22:33:00,379 INFO L226 Difference]: Without dead ends: 138 [2020-09-15 22:33:00,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:33:00,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-09-15 22:33:00,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-09-15 22:33:00,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-15 22:33:00,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 336 transitions. [2020-09-15 22:33:00,389 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 336 transitions. Word has length 11 [2020-09-15 22:33:00,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:33:00,390 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 336 transitions. [2020-09-15 22:33:00,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 22:33:00,390 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 336 transitions. [2020-09-15 22:33:00,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-15 22:33:00,391 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:33:00,391 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:33:00,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 22:33:00,392 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:33:00,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:33:00,392 INFO L82 PathProgramCache]: Analyzing trace with hash -178767453, now seen corresponding path program 1 times [2020-09-15 22:33:00,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:33:00,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184794013] [2020-09-15 22:33:00,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:33:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:33:00,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:33:00,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184794013] [2020-09-15 22:33:00,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:33:00,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 22:33:00,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1101153944] [2020-09-15 22:33:00,482 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:33:00,484 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:33:00,486 INFO L274 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-09-15 22:33:00,486 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:33:00,538 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:33:00,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 22:33:00,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:33:00,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 22:33:00,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 22:33:00,539 INFO L87 Difference]: Start difference. First operand 138 states and 336 transitions. Second operand 4 states. [2020-09-15 22:33:00,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:33:00,559 INFO L93 Difference]: Finished difference Result 178 states and 418 transitions. [2020-09-15 22:33:00,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 22:33:00,560 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-15 22:33:00,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:33:00,561 INFO L225 Difference]: With dead ends: 178 [2020-09-15 22:33:00,562 INFO L226 Difference]: Without dead ends: 82 [2020-09-15 22:33:00,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 22:33:00,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-15 22:33:00,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-09-15 22:33:00,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-15 22:33:00,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 174 transitions. [2020-09-15 22:33:00,575 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 174 transitions. Word has length 12 [2020-09-15 22:33:00,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:33:00,575 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 174 transitions. [2020-09-15 22:33:00,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 22:33:00,575 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 174 transitions. [2020-09-15 22:33:00,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-15 22:33:00,576 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:33:00,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:33:00,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 22:33:00,577 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:33:00,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:33:00,577 INFO L82 PathProgramCache]: Analyzing trace with hash 616515302, now seen corresponding path program 1 times [2020-09-15 22:33:00,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:33:00,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971542996] [2020-09-15 22:33:00,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:33:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:33:00,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:33:00,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971542996] [2020-09-15 22:33:00,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:33:00,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 22:33:00,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1298391770] [2020-09-15 22:33:00,662 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:33:00,664 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:33:00,668 INFO L274 McrAutomatonBuilder]: Finished intersection with 33 states and 50 transitions. [2020-09-15 22:33:00,668 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:33:00,737 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:33:00,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 22:33:00,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:33:00,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 22:33:00,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 22:33:00,738 INFO L87 Difference]: Start difference. First operand 82 states and 174 transitions. Second operand 4 states. [2020-09-15 22:33:00,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:33:00,753 INFO L93 Difference]: Finished difference Result 74 states and 154 transitions. [2020-09-15 22:33:00,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 22:33:00,753 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-09-15 22:33:00,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:33:00,754 INFO L225 Difference]: With dead ends: 74 [2020-09-15 22:33:00,754 INFO L226 Difference]: Without dead ends: 0 [2020-09-15 22:33:00,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 22:33:00,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-15 22:33:00,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-15 22:33:00,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-15 22:33:00,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-15 22:33:00,755 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-09-15 22:33:00,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:33:00,756 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-15 22:33:00,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 22:33:00,756 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-15 22:33:00,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-15 22:33:00,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 22:33:00,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 10:33:00 BasicIcfg [2020-09-15 22:33:00,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 22:33:00,765 INFO L168 Benchmark]: Toolchain (without parser) took 4303.70 ms. Allocated memory was 138.9 MB in the beginning and 249.6 MB in the end (delta: 110.6 MB). Free memory was 100.6 MB in the beginning and 95.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 115.9 MB. Max. memory is 7.1 GB. [2020-09-15 22:33:00,765 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-15 22:33:00,766 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.97 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.0 MB in the beginning and 160.6 MB in the end (delta: -60.6 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2020-09-15 22:33:00,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.46 ms. Allocated memory is still 202.9 MB. Free memory was 160.6 MB in the beginning and 158.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-15 22:33:00,768 INFO L168 Benchmark]: Boogie Preprocessor took 36.78 ms. Allocated memory is still 202.9 MB. Free memory was 158.6 MB in the beginning and 157.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-15 22:33:00,769 INFO L168 Benchmark]: RCFGBuilder took 437.87 ms. Allocated memory is still 202.9 MB. Free memory was 157.2 MB in the beginning and 134.7 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-15 22:33:00,770 INFO L168 Benchmark]: TraceAbstraction took 3000.33 ms. Allocated memory was 202.9 MB in the beginning and 249.6 MB in the end (delta: 46.7 MB). Free memory was 134.7 MB in the beginning and 95.3 MB in the end (delta: 39.3 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. [2020-09-15 22:33:00,774 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 745.97 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.0 MB in the beginning and 160.6 MB in the end (delta: -60.6 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 72.46 ms. Allocated memory is still 202.9 MB. Free memory was 160.6 MB in the beginning and 158.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.78 ms. Allocated memory is still 202.9 MB. Free memory was 158.6 MB in the beginning and 157.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.87 ms. Allocated memory is still 202.9 MB. Free memory was 157.2 MB in the beginning and 134.7 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3000.33 ms. Allocated memory was 202.9 MB in the beginning and 249.6 MB in the end (delta: 46.7 MB). Free memory was 134.7 MB in the beginning and 95.3 MB in the end (delta: 39.3 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 653 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 TotalNumberOfCompositions - 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 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 84 SDtfs, 62 SDslu, 67 SDs, 0 SdLazy, 28 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 1369 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...