/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:34:37,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:34:37,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:34:37,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:34:37,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:34:37,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:34:37,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:34:37,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:34:37,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:34:37,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:34:37,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:34:37,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:34:37,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:34:37,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:34:37,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:34:37,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:34:37,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:34:37,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:34:37,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:34:37,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:34:37,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:34:37,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:34:37,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:34:37,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:34:37,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 05:34:37,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:34:37,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:34:37,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:34:37,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:34:37,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:34:37,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:34:37,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:34:37,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:34:37,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:34:37,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:34:37,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:34:37,515 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-NoLbe.epf [2019-12-19 05:34:37,538 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:34:37,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:34:37,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:34:37,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:34:37,542 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:34:37,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:34:37,542 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:34:37,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:34:37,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:34:37,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:34:37,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:34:37,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:34:37,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:34:37,545 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:34:37,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:34:37,546 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:34:37,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:34:37,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:34:37,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:34:37,546 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:34:37,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:34:37,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:34:37,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:34:37,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:34:37,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:34:37,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:34:37,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:34:37,548 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:34:37,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:34:37,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:34:37,859 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:34:37,873 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:34:37,877 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:34:37,878 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:34:37,878 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:34:37,879 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2019-12-19 05:34:37,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06a5f720b/1f7f1888970a486ca33f9e7b732b0815/FLAGa33d5d462 [2019-12-19 05:34:38,483 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:34:38,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2019-12-19 05:34:38,509 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06a5f720b/1f7f1888970a486ca33f9e7b732b0815/FLAGa33d5d462 [2019-12-19 05:34:38,785 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06a5f720b/1f7f1888970a486ca33f9e7b732b0815 [2019-12-19 05:34:38,793 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:34:38,795 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:34:38,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:34:38,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:34:38,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:34:38,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:34:38" (1/1) ... [2019-12-19 05:34:38,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@295622f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:38, skipping insertion in model container [2019-12-19 05:34:38,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:34:38" (1/1) ... [2019-12-19 05:34:38,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:34:38,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:34:39,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:34:39,313 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:34:39,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:34:39,457 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:34:39,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:39 WrapperNode [2019-12-19 05:34:39,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:34:39,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:34:39,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:34:39,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:34:39,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:39" (1/1) ... [2019-12-19 05:34:39,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:39" (1/1) ... [2019-12-19 05:34:39,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:34:39,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:34:39,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:34:39,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:34:39,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:39" (1/1) ... [2019-12-19 05:34:39,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:39" (1/1) ... [2019-12-19 05:34:39,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:39" (1/1) ... [2019-12-19 05:34:39,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:39" (1/1) ... [2019-12-19 05:34:39,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:39" (1/1) ... [2019-12-19 05:34:39,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:39" (1/1) ... [2019-12-19 05:34:39,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:39" (1/1) ... [2019-12-19 05:34:39,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:34:39,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:34:39,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:34:39,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:34:39,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:39" (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 [2019-12-19 05:34:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:34:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:34:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:34:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:34:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:34:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:34:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:34:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:34:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:34:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:34:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:34:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:34:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:34:39,606 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:34:39,997 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:34:39,997 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:34:39,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:34:39 BoogieIcfgContainer [2019-12-19 05:34:39,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:34:40,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:34:40,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:34:40,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:34:40,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:34:38" (1/3) ... [2019-12-19 05:34:40,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfc8f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:34:40, skipping insertion in model container [2019-12-19 05:34:40,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:39" (2/3) ... [2019-12-19 05:34:40,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfc8f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:34:40, skipping insertion in model container [2019-12-19 05:34:40,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:34:39" (3/3) ... [2019-12-19 05:34:40,007 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_pso.opt.i [2019-12-19 05:34:40,018 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:34:40,018 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:34:40,027 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:34:40,028 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:34:40,057 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,057 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,057 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,058 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,058 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,059 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,059 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,059 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,060 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,060 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,060 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,060 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,061 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,061 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,061 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,062 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,062 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,062 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,066 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,066 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,067 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,067 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,072 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,073 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,073 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,073 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,075 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,075 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,076 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,076 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:40,112 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:34:40,135 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:34:40,135 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:34:40,135 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:34:40,135 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:34:40,136 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:34:40,137 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:34:40,137 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:34:40,137 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:34:40,154 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 55 transitions [2019-12-19 05:34:40,246 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1249 states. [2019-12-19 05:34:40,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states. [2019-12-19 05:34:40,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:34:40,265 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:40,266 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:40,267 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:40,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:40,274 INFO L82 PathProgramCache]: Analyzing trace with hash 100870604, now seen corresponding path program 1 times [2019-12-19 05:34:40,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:40,284 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428358599] [2019-12-19 05:34:40,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:40,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:40,711 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428358599] [2019-12-19 05:34:40,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:40,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:34:40,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721442357] [2019-12-19 05:34:40,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:34:40,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:40,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:34:40,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:34:40,741 INFO L87 Difference]: Start difference. First operand 1249 states. Second operand 4 states. [2019-12-19 05:34:40,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:40,856 INFO L93 Difference]: Finished difference Result 1296 states and 3962 transitions. [2019-12-19 05:34:40,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:34:40,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-19 05:34:40,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:40,883 INFO L225 Difference]: With dead ends: 1296 [2019-12-19 05:34:40,883 INFO L226 Difference]: Without dead ends: 602 [2019-12-19 05:34:40,885 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:34:40,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-12-19 05:34:41,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-12-19 05:34:41,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-12-19 05:34:41,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1777 transitions. [2019-12-19 05:34:41,035 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1777 transitions. Word has length 32 [2019-12-19 05:34:41,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:41,036 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 1777 transitions. [2019-12-19 05:34:41,036 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:34:41,036 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1777 transitions. [2019-12-19 05:34:41,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:34:41,045 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:41,045 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:41,045 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:41,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:41,046 INFO L82 PathProgramCache]: Analyzing trace with hash -471697472, now seen corresponding path program 1 times [2019-12-19 05:34:41,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:41,047 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853091580] [2019-12-19 05:34:41,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:41,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:41,204 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853091580] [2019-12-19 05:34:41,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:41,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:34:41,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303795194] [2019-12-19 05:34:41,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:34:41,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:41,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:34:41,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:34:41,208 INFO L87 Difference]: Start difference. First operand 602 states and 1777 transitions. Second operand 5 states. [2019-12-19 05:34:41,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:41,294 INFO L93 Difference]: Finished difference Result 602 states and 1696 transitions. [2019-12-19 05:34:41,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:34:41,299 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-19 05:34:41,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:41,307 INFO L225 Difference]: With dead ends: 602 [2019-12-19 05:34:41,309 INFO L226 Difference]: Without dead ends: 539 [2019-12-19 05:34:41,317 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:34:41,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-12-19 05:34:41,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2019-12-19 05:34:41,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-12-19 05:34:41,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1546 transitions. [2019-12-19 05:34:41,363 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1546 transitions. Word has length 33 [2019-12-19 05:34:41,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:41,364 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 1546 transitions. [2019-12-19 05:34:41,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:34:41,364 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1546 transitions. [2019-12-19 05:34:41,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:34:41,367 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:41,367 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:41,367 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:41,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:41,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1145104615, now seen corresponding path program 1 times [2019-12-19 05:34:41,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:41,368 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373454734] [2019-12-19 05:34:41,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:41,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:41,528 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373454734] [2019-12-19 05:34:41,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:41,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:34:41,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478933699] [2019-12-19 05:34:41,529 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:34:41,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:41,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:34:41,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:34:41,530 INFO L87 Difference]: Start difference. First operand 539 states and 1546 transitions. Second operand 6 states. [2019-12-19 05:34:41,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:41,621 INFO L93 Difference]: Finished difference Result 404 states and 1060 transitions. [2019-12-19 05:34:41,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:34:41,622 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-12-19 05:34:41,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:41,625 INFO L225 Difference]: With dead ends: 404 [2019-12-19 05:34:41,625 INFO L226 Difference]: Without dead ends: 350 [2019-12-19 05:34:41,626 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:34:41,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-12-19 05:34:41,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-12-19 05:34:41,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-12-19 05:34:41,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 916 transitions. [2019-12-19 05:34:41,638 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 916 transitions. Word has length 34 [2019-12-19 05:34:41,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:41,639 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 916 transitions. [2019-12-19 05:34:41,639 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:34:41,639 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 916 transitions. [2019-12-19 05:34:41,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:34:41,641 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:41,641 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:41,641 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:41,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:41,641 INFO L82 PathProgramCache]: Analyzing trace with hash 608973843, now seen corresponding path program 1 times [2019-12-19 05:34:41,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:41,642 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193823828] [2019-12-19 05:34:41,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:41,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:41,813 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193823828] [2019-12-19 05:34:41,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:41,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:34:41,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068102444] [2019-12-19 05:34:41,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:34:41,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:41,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:34:41,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:34:41,816 INFO L87 Difference]: Start difference. First operand 350 states and 916 transitions. Second operand 8 states. [2019-12-19 05:34:41,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:41,944 INFO L93 Difference]: Finished difference Result 521 states and 1396 transitions. [2019-12-19 05:34:41,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:34:41,945 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-19 05:34:41,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:41,948 INFO L225 Difference]: With dead ends: 521 [2019-12-19 05:34:41,948 INFO L226 Difference]: Without dead ends: 278 [2019-12-19 05:34:41,949 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:34:41,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-12-19 05:34:41,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-12-19 05:34:41,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-12-19 05:34:41,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 727 transitions. [2019-12-19 05:34:41,960 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 727 transitions. Word has length 35 [2019-12-19 05:34:41,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:41,960 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 727 transitions. [2019-12-19 05:34:41,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:34:41,961 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 727 transitions. [2019-12-19 05:34:41,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:34:41,962 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:41,962 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:41,962 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:41,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:41,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1362281377, now seen corresponding path program 2 times [2019-12-19 05:34:41,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:41,963 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845430427] [2019-12-19 05:34:41,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:42,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:42,146 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845430427] [2019-12-19 05:34:42,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:42,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:34:42,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400237489] [2019-12-19 05:34:42,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:34:42,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:42,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:34:42,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:34:42,149 INFO L87 Difference]: Start difference. First operand 278 states and 727 transitions. Second operand 8 states. [2019-12-19 05:34:42,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:42,321 INFO L93 Difference]: Finished difference Result 440 states and 1186 transitions. [2019-12-19 05:34:42,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:34:42,324 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-19 05:34:42,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:42,328 INFO L225 Difference]: With dead ends: 440 [2019-12-19 05:34:42,328 INFO L226 Difference]: Without dead ends: 254 [2019-12-19 05:34:42,329 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:34:42,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-12-19 05:34:42,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2019-12-19 05:34:42,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-12-19 05:34:42,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 673 transitions. [2019-12-19 05:34:42,338 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 673 transitions. Word has length 35 [2019-12-19 05:34:42,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:42,339 INFO L462 AbstractCegarLoop]: Abstraction has 254 states and 673 transitions. [2019-12-19 05:34:42,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:34:42,339 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 673 transitions. [2019-12-19 05:34:42,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:34:42,340 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:42,345 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:42,345 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:42,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:42,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1957742869, now seen corresponding path program 3 times [2019-12-19 05:34:42,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:42,349 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164285202] [2019-12-19 05:34:42,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:42,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:42,521 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164285202] [2019-12-19 05:34:42,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:42,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:34:42,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632456262] [2019-12-19 05:34:42,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:34:42,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:42,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:34:42,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:34:42,524 INFO L87 Difference]: Start difference. First operand 254 states and 673 transitions. Second operand 8 states. [2019-12-19 05:34:42,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:42,618 INFO L93 Difference]: Finished difference Result 200 states and 511 transitions. [2019-12-19 05:34:42,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:34:42,618 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-19 05:34:42,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:42,619 INFO L225 Difference]: With dead ends: 200 [2019-12-19 05:34:42,619 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:34:42,619 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:34:42,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:34:42,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:34:42,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:34:42,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:34:42,620 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-12-19 05:34:42,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:42,620 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:34:42,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:34:42,621 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:34:42,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:34:42,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:34:42 BasicIcfg [2019-12-19 05:34:42,633 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:34:42,640 INFO L168 Benchmark]: Toolchain (without parser) took 3840.27 ms. Allocated memory was 137.4 MB in the beginning and 255.3 MB in the end (delta: 118.0 MB). Free memory was 100.9 MB in the beginning and 175.4 MB in the end (delta: -74.5 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:42,641 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-19 05:34:42,643 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.82 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 100.4 MB in the beginning and 158.0 MB in the end (delta: -57.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:42,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.85 ms. Allocated memory is still 200.8 MB. Free memory was 157.4 MB in the beginning and 155.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:42,647 INFO L168 Benchmark]: Boogie Preprocessor took 27.84 ms. Allocated memory is still 200.8 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:42,647 INFO L168 Benchmark]: RCFGBuilder took 462.96 ms. Allocated memory is still 200.8 MB. Free memory was 153.9 MB in the beginning and 133.8 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:42,649 INFO L168 Benchmark]: TraceAbstraction took 2633.40 ms. Allocated memory was 200.8 MB in the beginning and 255.3 MB in the end (delta: 54.5 MB). Free memory was 133.1 MB in the beginning and 175.4 MB in the end (delta: -42.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:42,660 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 662.82 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 100.4 MB in the beginning and 158.0 MB in the end (delta: -57.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.85 ms. Allocated memory is still 200.8 MB. Free memory was 157.4 MB in the beginning and 155.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.84 ms. Allocated memory is still 200.8 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 462.96 ms. Allocated memory is still 200.8 MB. Free memory was 153.9 MB in the beginning and 133.8 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2633.40 ms. Allocated memory was 200.8 MB in the beginning and 255.3 MB in the end (delta: 54.5 MB). Free memory was 133.1 MB in the beginning and 175.4 MB in the end (delta: -42.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 284 SDtfs, 395 SDslu, 764 SDs, 0 SdLazy, 113 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1249occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 21102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...