/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:33:52,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:33:52,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:33:52,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:33:52,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:33:52,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:33:52,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:33:52,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:33:52,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:33:52,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:33:52,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:33:52,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:33:52,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:33:52,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:33:52,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:33:52,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:33:52,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:33:52,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:33:52,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:33:52,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:33:52,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:33:52,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:33:52,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:33:52,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:33:52,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 22:33:52,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 22:33:52,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 22:33:52,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 22:33:52,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 22:33:52,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 22:33:52,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:33:52,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:33:52,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:33:52,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:33:52,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:33:52,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:33:52,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:33:52,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:33:52,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:33:52,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:33:52,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:33:52,353 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-MCR.epf [2019-12-27 22:33:52,367 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:33:52,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:33:52,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:33:52,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:33:52,369 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:33:52,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:33:52,369 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:33:52,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:33:52,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:33:52,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:33:52,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:33:52,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:33:52,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:33:52,370 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:33:52,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:33:52,371 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:33:52,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:33:52,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:33:52,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:33:52,371 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:33:52,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:33:52,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:33:52,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:33:52,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:33:52,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:33:52,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:33:52,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:33:52,373 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:33:52,373 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:33:52,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:33:52,373 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:33:52,374 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:33:52,649 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:33:52,662 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:33:52,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:33:52,667 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:33:52,668 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:33:52,669 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i [2019-12-27 22:33:52,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27724b421/dff311183e4648aaadf979262e9cb551/FLAG2e325597a [2019-12-27 22:33:53,193 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:33:53,194 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i [2019-12-27 22:33:53,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27724b421/dff311183e4648aaadf979262e9cb551/FLAG2e325597a [2019-12-27 22:33:53,540 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27724b421/dff311183e4648aaadf979262e9cb551 [2019-12-27 22:33:53,548 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:33:53,550 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:33:53,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:33:53,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:33:53,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:33:53,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:33:53" (1/1) ... [2019-12-27 22:33:53,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25e86a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:33:53, skipping insertion in model container [2019-12-27 22:33:53,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:33:53" (1/1) ... [2019-12-27 22:33:53,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:33:53,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:33:54,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:33:54,175 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:33:54,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:33:54,300 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:33:54,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:33:54 WrapperNode [2019-12-27 22:33:54,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:33:54,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:33:54,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:33:54,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:33:54,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:33:54" (1/1) ... [2019-12-27 22:33:54,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:33:54" (1/1) ... [2019-12-27 22:33:54,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:33:54,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:33:54,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:33:54,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:33:54,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:33:54" (1/1) ... [2019-12-27 22:33:54,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:33:54" (1/1) ... [2019-12-27 22:33:54,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:33:54" (1/1) ... [2019-12-27 22:33:54,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:33:54" (1/1) ... [2019-12-27 22:33:54,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:33:54" (1/1) ... [2019-12-27 22:33:54,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:33:54" (1/1) ... [2019-12-27 22:33:54,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:33:54" (1/1) ... [2019-12-27 22:33:54,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:33:54,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:33:54,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:33:54,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:33:54,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:33:54" (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 [2019-12-27 22:33:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:33:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:33:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:33:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:33:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:33:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:33:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:33:54,475 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:33:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:33:54,475 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:33:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:33:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:33:54,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:33:54,477 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 22:33:54,914 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:33:54,914 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:33:54,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:33:54 BoogieIcfgContainer [2019-12-27 22:33:54,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:33:54,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:33:54,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:33:54,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:33:54,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:33:53" (1/3) ... [2019-12-27 22:33:54,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52854a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:33:54, skipping insertion in model container [2019-12-27 22:33:54,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:33:54" (2/3) ... [2019-12-27 22:33:54,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52854a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:33:54, skipping insertion in model container [2019-12-27 22:33:54,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:33:54" (3/3) ... [2019-12-27 22:33:54,925 INFO L109 eAbstractionObserver]: Analyzing ICFG safe017_tso.opt.i [2019-12-27 22:33:54,937 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:33:54,937 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:33:54,946 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:33:54,947 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:33:54,981 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,981 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,982 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,982 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,983 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,983 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,984 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,985 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,985 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,985 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,986 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,986 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,987 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,988 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,988 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,988 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,989 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,989 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,993 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,994 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,994 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:54,995 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:55,003 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:55,003 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:55,004 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:55,004 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:55,007 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:55,008 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:55,008 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:55,008 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:33:55,027 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 22:33:55,051 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:33:55,051 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:33:55,052 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:33:55,053 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:33:55,053 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:33:55,053 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:33:55,054 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:33:55,054 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:33:55,072 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 52 transitions [2019-12-27 22:33:55,074 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 61 places, 52 transitions [2019-12-27 22:33:55,149 INFO L132 PetriNetUnfolder]: 1/49 cut-off events. [2019-12-27 22:33:55,149 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:33:55,158 INFO L76 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/47 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:33:55,162 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 61 places, 52 transitions [2019-12-27 22:33:55,193 INFO L132 PetriNetUnfolder]: 1/49 cut-off events. [2019-12-27 22:33:55,193 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:33:55,194 INFO L76 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/47 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:33:55,196 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 22:33:55,197 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:33:56,748 INFO L206 etLargeBlockEncoding]: Checked pairs total: 495 [2019-12-27 22:33:56,748 INFO L214 etLargeBlockEncoding]: Total number of compositions: 42 [2019-12-27 22:33:56,752 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 22:33:56,765 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 22:33:56,767 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 22:33:56,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 22:33:56,774 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:33:56,775 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:33:56,775 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:33:56,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:33:56,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1253178052, now seen corresponding path program 1 times [2019-12-27 22:33:56,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:33:56,793 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048459047] [2019-12-27 22:33:56,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:33:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:33:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:33:57,027 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048459047] [2019-12-27 22:33:57,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:33:57,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:33:57,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [400002485] [2019-12-27 22:33:57,030 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:33:57,036 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:33:57,052 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 22:33:57,052 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:33:57,056 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:33:57,057 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:33:57,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:33:57,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:33:57,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:33:57,074 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 22:33:57,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:33:57,115 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 22:33:57,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:33:57,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 22:33:57,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:33:57,140 INFO L225 Difference]: With dead ends: 42 [2019-12-27 22:33:57,148 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 22:33:57,150 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 [2019-12-27 22:33:57,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 22:33:57,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 22:33:57,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 22:33:57,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 22:33:57,203 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 22:33:57,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:33:57,205 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 22:33:57,205 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:33:57,205 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 22:33:57,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:33:57,207 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:33:57,208 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:33:57,212 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:33:57,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:33:57,213 INFO L82 PathProgramCache]: Analyzing trace with hash 193813457, now seen corresponding path program 1 times [2019-12-27 22:33:57,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:33:57,222 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367893444] [2019-12-27 22:33:57,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:33:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:33:57,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:33:57,315 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367893444] [2019-12-27 22:33:57,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:33:57,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:33:57,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1365223630] [2019-12-27 22:33:57,316 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:33:57,320 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:33:57,325 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 22:33:57,325 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:33:57,325 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:33:57,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:33:57,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:33:57,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:33:57,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:33:57,330 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 22:33:57,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:33:57,362 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2019-12-27 22:33:57,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:33:57,363 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 22:33:57,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:33:57,364 INFO L225 Difference]: With dead ends: 39 [2019-12-27 22:33:57,365 INFO L226 Difference]: Without dead ends: 31 [2019-12-27 22:33:57,366 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 [2019-12-27 22:33:57,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-27 22:33:57,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-27 22:33:57,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-27 22:33:57,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 54 transitions. [2019-12-27 22:33:57,375 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 54 transitions. Word has length 9 [2019-12-27 22:33:57,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:33:57,376 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 54 transitions. [2019-12-27 22:33:57,376 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:33:57,376 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2019-12-27 22:33:57,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:33:57,377 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:33:57,377 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:33:57,377 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:33:57,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:33:57,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1741916971, now seen corresponding path program 1 times [2019-12-27 22:33:57,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:33:57,380 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36403770] [2019-12-27 22:33:57,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:33:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:33:57,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:33:57,489 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36403770] [2019-12-27 22:33:57,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:33:57,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:33:57,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1533346038] [2019-12-27 22:33:57,490 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:33:57,491 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:33:57,493 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 22:33:57,494 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:33:57,495 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:33:57,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:33:57,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:33:57,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:33:57,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:33:57,496 INFO L87 Difference]: Start difference. First operand 31 states and 54 transitions. Second operand 3 states. [2019-12-27 22:33:57,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:33:57,505 INFO L93 Difference]: Finished difference Result 31 states and 51 transitions. [2019-12-27 22:33:57,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:33:57,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 22:33:57,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:33:57,506 INFO L225 Difference]: With dead ends: 31 [2019-12-27 22:33:57,506 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 22:33:57,507 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:33:57,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 22:33:57,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 22:33:57,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 22:33:57,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 22:33:57,509 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-27 22:33:57,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:33:57,510 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 22:33:57,510 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:33:57,510 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 22:33:57,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:33:57,511 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:33:57,511 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:33:57,511 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:33:57,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:33:57,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1835149176, now seen corresponding path program 1 times [2019-12-27 22:33:57,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:33:57,512 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443477719] [2019-12-27 22:33:57,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:33:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:33:57,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:33:57,583 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443477719] [2019-12-27 22:33:57,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:33:57,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:33:57,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1529888041] [2019-12-27 22:33:57,587 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:33:57,588 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:33:57,593 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 22:33:57,593 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:33:57,593 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:33:57,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:33:57,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:33:57,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:33:57,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:33:57,594 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 3 states. [2019-12-27 22:33:57,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:33:57,604 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 22:33:57,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:33:57,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 22:33:57,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:33:57,605 INFO L225 Difference]: With dead ends: 16 [2019-12-27 22:33:57,606 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:33:57,606 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:33:57,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:33:57,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:33:57,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:33:57,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:33:57,607 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 22:33:57,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:33:57,607 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:33:57,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:33:57,608 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:33:57,608 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:33:57,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:33:57 BasicIcfg [2019-12-27 22:33:57,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:33:57,615 INFO L168 Benchmark]: Toolchain (without parser) took 4064.59 ms. Allocated memory was 143.1 MB in the beginning and 253.8 MB in the end (delta: 110.6 MB). Free memory was 99.7 MB in the beginning and 189.6 MB in the end (delta: -90.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-27 22:33:57,616 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 143.1 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 22:33:57,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.83 ms. Allocated memory was 143.1 MB in the beginning and 199.2 MB in the end (delta: 56.1 MB). Free memory was 99.3 MB in the beginning and 156.4 MB in the end (delta: -57.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 22:33:57,618 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.26 ms. Allocated memory is still 199.2 MB. Free memory was 155.7 MB in the beginning and 153.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 22:33:57,619 INFO L168 Benchmark]: Boogie Preprocessor took 33.33 ms. Allocated memory is still 199.2 MB. Free memory was 153.6 MB in the beginning and 152.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 22:33:57,620 INFO L168 Benchmark]: RCFGBuilder took 529.71 ms. Allocated memory is still 199.2 MB. Free memory was 152.2 MB in the beginning and 132.2 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 22:33:57,621 INFO L168 Benchmark]: TraceAbstraction took 2695.02 ms. Allocated memory was 199.2 MB in the beginning and 253.8 MB in the end (delta: 54.5 MB). Free memory was 131.5 MB in the beginning and 189.6 MB in the end (delta: -58.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 22:33:57,625 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 143.1 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 749.83 ms. Allocated memory was 143.1 MB in the beginning and 199.2 MB in the end (delta: 56.1 MB). Free memory was 99.3 MB in the beginning and 156.4 MB in the end (delta: -57.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.26 ms. Allocated memory is still 199.2 MB. Free memory was 155.7 MB in the beginning and 153.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.33 ms. Allocated memory is still 199.2 MB. Free memory was 153.6 MB in the beginning and 152.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 529.71 ms. Allocated memory is still 199.2 MB. Free memory was 152.2 MB in the beginning and 132.2 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2695.02 ms. Allocated memory was 199.2 MB in the beginning and 253.8 MB in the end (delta: 54.5 MB). Free memory was 131.5 MB in the beginning and 189.6 MB in the end (delta: -58.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 61 ProgramPointsBefore, 21 ProgramPointsAfterwards, 52 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 238 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 495 CheckedPairsTotal, 42 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, 52 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 21 SDslu, 24 SDs, 0 SdLazy, 18 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 558 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...