/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 22:36:04,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 22:36:04,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 22:36:04,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 22:36:04,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 22:36:04,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 22:36:04,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 22:36:04,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 22:36:04,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 22:36:04,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 22:36:04,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 22:36:04,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 22:36:04,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 22:36:04,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 22:36:04,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 22:36:04,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 22:36:04,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 22:36:04,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 22:36:04,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 22:36:04,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 22:36:04,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 22:36:04,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 22:36:04,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 22:36:04,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 22:36:04,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 22:36:04,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 22:36:04,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 22:36:04,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 22:36:04,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 22:36:04,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 22:36:04,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 22:36:04,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 22:36:04,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 22:36:04,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 22:36:04,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 22:36:04,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 22:36:04,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 22:36:04,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 22:36:04,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 22:36:04,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 22:36:04,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 22:36:04,880 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2019-12-18 22:36:04,898 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 22:36:04,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 22:36:04,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 22:36:04,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 22:36:04,902 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 22:36:04,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 22:36:04,903 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 22:36:04,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 22:36:04,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 22:36:04,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 22:36:04,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 22:36:04,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 22:36:04,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 22:36:04,904 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 22:36:04,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 22:36:04,904 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 22:36:04,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 22:36:04,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 22:36:04,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 22:36:04,905 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 22:36:04,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 22:36:04,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 22:36:04,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 22:36:04,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 22:36:04,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 22:36:04,906 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 22:36:04,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 22:36:04,907 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 22:36:04,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 22:36:04,907 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 22:36:05,188 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 22:36:05,203 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 22:36:05,207 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 22:36:05,209 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 22:36:05,209 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 22:36:05,210 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i [2019-12-18 22:36:05,286 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47abd9da2/fc48c7f8ceee444194d00ad44d0f0293/FLAG0cdcbb2c3 [2019-12-18 22:36:05,835 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 22:36:05,835 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i [2019-12-18 22:36:05,852 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47abd9da2/fc48c7f8ceee444194d00ad44d0f0293/FLAG0cdcbb2c3 [2019-12-18 22:36:06,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47abd9da2/fc48c7f8ceee444194d00ad44d0f0293 [2019-12-18 22:36:06,119 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 22:36:06,121 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 22:36:06,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 22:36:06,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 22:36:06,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 22:36:06,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:36:06" (1/1) ... [2019-12-18 22:36:06,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b973440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:36:06, skipping insertion in model container [2019-12-18 22:36:06,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:36:06" (1/1) ... [2019-12-18 22:36:06,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 22:36:06,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 22:36:06,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:36:06,747 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 22:36:06,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:36:06,892 INFO L208 MainTranslator]: Completed translation [2019-12-18 22:36:06,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:36:06 WrapperNode [2019-12-18 22:36:06,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 22:36:06,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 22:36:06,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 22:36:06,894 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 22:36:06,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:36:06" (1/1) ... [2019-12-18 22:36:06,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:36:06" (1/1) ... [2019-12-18 22:36:06,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 22:36:06,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 22:36:06,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 22:36:06,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 22:36:06,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:36:06" (1/1) ... [2019-12-18 22:36:06,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:36:06" (1/1) ... [2019-12-18 22:36:06,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:36:06" (1/1) ... [2019-12-18 22:36:06,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:36:06" (1/1) ... [2019-12-18 22:36:06,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:36:06" (1/1) ... [2019-12-18 22:36:06,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:36:06" (1/1) ... [2019-12-18 22:36:06,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:36:06" (1/1) ... [2019-12-18 22:36:06,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 22:36:06,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 22:36:06,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 22:36:06,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 22:36:06,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:36:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 22:36:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 22:36:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 22:36:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 22:36:07,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 22:36:07,048 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 22:36:07,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 22:36:07,048 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 22:36:07,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 22:36:07,048 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 22:36:07,049 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 22:36:07,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 22:36:07,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 22:36:07,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 22:36:07,051 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 22:36:07,424 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 22:36:07,424 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 22:36:07,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:36:07 BoogieIcfgContainer [2019-12-18 22:36:07,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 22:36:07,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 22:36:07,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 22:36:07,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 22:36:07,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:36:06" (1/3) ... [2019-12-18 22:36:07,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63bc678b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:36:07, skipping insertion in model container [2019-12-18 22:36:07,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:36:06" (2/3) ... [2019-12-18 22:36:07,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63bc678b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:36:07, skipping insertion in model container [2019-12-18 22:36:07,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:36:07" (3/3) ... [2019-12-18 22:36:07,439 INFO L109 eAbstractionObserver]: Analyzing ICFG safe014_tso.oepc.i [2019-12-18 22:36:07,447 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 22:36:07,448 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 22:36:07,455 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 22:36:07,455 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 22:36:07,483 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,483 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,484 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,484 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,485 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,485 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,485 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,485 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,486 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,486 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,486 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,486 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,487 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,487 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,487 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,488 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,488 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,488 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,492 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,493 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,493 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,493 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,499 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,500 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,501 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,501 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,504 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,505 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,505 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,505 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:36:07,522 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 22:36:07,543 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 22:36:07,543 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 22:36:07,543 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 22:36:07,544 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 22:36:07,544 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 22:36:07,544 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 22:36:07,544 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 22:36:07,544 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 22:36:07,558 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 22:36:07,561 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 22:36:07,618 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 22:36:07,619 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:36:07,627 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:36:07,630 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 22:36:07,646 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 22:36:07,647 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:36:07,648 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:36:07,649 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 22:36:07,650 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 22:36:08,975 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-18 22:36:09,044 INFO L206 etLargeBlockEncoding]: Checked pairs total: 478 [2019-12-18 22:36:09,044 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-18 22:36:09,048 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-18 22:36:09,059 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-18 22:36:09,061 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-18 22:36:09,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 22:36:09,069 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:36:09,070 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:36:09,071 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:36:09,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:36:09,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1804038140, now seen corresponding path program 1 times [2019-12-18 22:36:09,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:36:09,083 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533522181] [2019-12-18 22:36:09,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:36:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:36:09,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:36:09,300 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533522181] [2019-12-18 22:36:09,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:36:09,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 22:36:09,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219778122] [2019-12-18 22:36:09,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:36:09,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:36:09,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:36:09,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:36:09,327 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-18 22:36:09,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:36:09,352 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-18 22:36:09,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:36:09,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 22:36:09,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:36:09,366 INFO L225 Difference]: With dead ends: 50 [2019-12-18 22:36:09,366 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 22:36:09,368 INFO L631 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 [2019-12-18 22:36:09,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 22:36:09,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 22:36:09,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 22:36:09,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 22:36:09,403 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 22:36:09,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:36:09,404 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 22:36:09,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:36:09,404 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 22:36:09,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 22:36:09,405 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:36:09,405 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:36:09,406 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:36:09,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:36:09,406 INFO L82 PathProgramCache]: Analyzing trace with hash 90665039, now seen corresponding path program 1 times [2019-12-18 22:36:09,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:36:09,407 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407449270] [2019-12-18 22:36:09,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:36:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:36:09,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:36:09,539 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407449270] [2019-12-18 22:36:09,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:36:09,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:36:09,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845569223] [2019-12-18 22:36:09,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:36:09,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:36:09,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:36:09,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:36:09,544 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 22:36:09,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:36:09,578 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 22:36:09,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:36:09,579 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 22:36:09,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:36:09,580 INFO L225 Difference]: With dead ends: 36 [2019-12-18 22:36:09,580 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 22:36:09,581 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 22:36:09,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 22:36:09,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 22:36:09,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 22:36:09,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-18 22:36:09,589 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-18 22:36:09,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:36:09,591 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-18 22:36:09,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:36:09,592 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-18 22:36:09,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 22:36:09,593 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:36:09,593 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:36:09,593 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:36:09,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:36:09,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1542654109, now seen corresponding path program 1 times [2019-12-18 22:36:09,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:36:09,595 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843760702] [2019-12-18 22:36:09,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:36:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:36:09,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:36:09,672 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843760702] [2019-12-18 22:36:09,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:36:09,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 22:36:09,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568827018] [2019-12-18 22:36:09,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:36:09,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:36:09,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:36:09,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:36:09,674 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-18 22:36:09,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:36:09,679 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2019-12-18 22:36:09,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:36:09,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 22:36:09,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:36:09,681 INFO L225 Difference]: With dead ends: 27 [2019-12-18 22:36:09,681 INFO L226 Difference]: Without dead ends: 27 [2019-12-18 22:36:09,682 INFO L631 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 [2019-12-18 22:36:09,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-18 22:36:09,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-18 22:36:09,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-18 22:36:09,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-18 22:36:09,686 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-18 22:36:09,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:36:09,687 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-18 22:36:09,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:36:09,687 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-18 22:36:09,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 22:36:09,688 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:36:09,688 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:36:09,688 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:36:09,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:36:09,689 INFO L82 PathProgramCache]: Analyzing trace with hash -525836137, now seen corresponding path program 1 times [2019-12-18 22:36:09,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:36:09,689 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561130258] [2019-12-18 22:36:09,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:36:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:36:09,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:36:09,736 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561130258] [2019-12-18 22:36:09,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:36:09,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:36:09,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856020297] [2019-12-18 22:36:09,737 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:36:09,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:36:09,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:36:09,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:36:09,738 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-18 22:36:09,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:36:09,758 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-18 22:36:09,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:36:09,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 22:36:09,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:36:09,759 INFO L225 Difference]: With dead ends: 29 [2019-12-18 22:36:09,759 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 22:36:09,760 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 22:36:09,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 22:36:09,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 22:36:09,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 22:36:09,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 22:36:09,763 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-18 22:36:09,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:36:09,763 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 22:36:09,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:36:09,764 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 22:36:09,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 22:36:09,764 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:36:09,764 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:36:09,765 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:36:09,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:36:09,765 INFO L82 PathProgramCache]: Analyzing trace with hash -577580537, now seen corresponding path program 2 times [2019-12-18 22:36:09,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:36:09,766 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843300721] [2019-12-18 22:36:09,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:36:09,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:36:09,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:36:09,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843300721] [2019-12-18 22:36:09,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:36:09,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 22:36:09,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92131149] [2019-12-18 22:36:09,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:36:09,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:36:09,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:36:09,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:36:09,830 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-18 22:36:09,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:36:09,851 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 22:36:09,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:36:09,851 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 22:36:09,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:36:09,851 INFO L225 Difference]: With dead ends: 16 [2019-12-18 22:36:09,851 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 22:36:09,852 INFO L631 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 [2019-12-18 22:36:09,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 22:36:09,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 22:36:09,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 22:36:09,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 22:36:09,853 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 22:36:09,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:36:09,853 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 22:36:09,853 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:36:09,853 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 22:36:09,854 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 22:36:09,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 10:36:09 BasicIcfg [2019-12-18 22:36:09,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 22:36:09,860 INFO L168 Benchmark]: Toolchain (without parser) took 3739.28 ms. Allocated memory was 145.2 MB in the beginning and 246.9 MB in the end (delta: 101.7 MB). Free memory was 101.4 MB in the beginning and 162.4 MB in the end (delta: -61.0 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. [2019-12-18 22:36:09,861 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-18 22:36:09,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.50 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.2 MB in the beginning and 157.7 MB in the end (delta: -56.5 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-18 22:36:09,863 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.98 ms. Allocated memory is still 202.9 MB. Free memory was 157.7 MB in the beginning and 155.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 22:36:09,864 INFO L168 Benchmark]: Boogie Preprocessor took 33.32 ms. Allocated memory is still 202.9 MB. Free memory was 155.7 MB in the beginning and 154.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 22:36:09,865 INFO L168 Benchmark]: RCFGBuilder took 443.37 ms. Allocated memory is still 202.9 MB. Free memory was 154.3 MB in the beginning and 133.1 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-12-18 22:36:09,866 INFO L168 Benchmark]: TraceAbstraction took 2429.55 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 133.1 MB in the beginning and 162.4 MB in the end (delta: -29.3 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2019-12-18 22:36:09,871 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 770.50 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.2 MB in the beginning and 157.7 MB in the end (delta: -56.5 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.98 ms. Allocated memory is still 202.9 MB. Free memory was 157.7 MB in the beginning and 155.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.32 ms. Allocated memory is still 202.9 MB. Free memory was 155.7 MB in the beginning and 154.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 443.37 ms. Allocated memory is still 202.9 MB. Free memory was 154.3 MB in the beginning and 133.1 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2429.55 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 133.1 MB in the beginning and 162.4 MB in the end (delta: -29.3 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 232 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 478 CheckedPairsTotal, 47 TotalNumberOfCompositions - PositiveResult [Line: 4]: 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 54 SDtfs, 25 SDslu, 35 SDs, 0 SdLazy, 24 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1102 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...