/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:32:03,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:32:03,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:32:03,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:32:03,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:32:03,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:32:03,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:32:03,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:32:03,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:32:03,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:32:03,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:32:03,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:32:03,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:32:03,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:32:03,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:32:03,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:32:03,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:32:03,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:32:03,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:32:03,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:32:03,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:32:03,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:32:03,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:32:03,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:32:03,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-28 05:32:03,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-28 05:32:03,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-28 05:32:03,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-28 05:32:03,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-28 05:32:03,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-28 05:32:03,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:32:03,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:32:03,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:32:03,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:32:03,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:32:03,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:32:03,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:32:03,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:32:03,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:32:03,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:32:03,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:32:03,371 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-MCR.epf [2019-12-28 05:32:03,385 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:32:03,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:32:03,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:32:03,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:32:03,387 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:32:03,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:32:03,388 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:32:03,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:32:03,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:32:03,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:32:03,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:32:03,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:32:03,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:32:03,389 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:32:03,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:32:03,389 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:32:03,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:32:03,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:32:03,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:32:03,390 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:32:03,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:32:03,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:32:03,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:32:03,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:32:03,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:32:03,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:32:03,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:32:03,394 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:32:03,394 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:32:03,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:32:03,394 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:32:03,394 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:32:03,682 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:32:03,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:32:03,701 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:32:03,703 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:32:03,705 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:32:03,706 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i [2019-12-28 05:32:03,774 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9a7321d7/f5702332c1a946f98af1a78de72f36b3/FLAGb7d85290d [2019-12-28 05:32:04,337 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:32:04,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i [2019-12-28 05:32:04,359 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9a7321d7/f5702332c1a946f98af1a78de72f36b3/FLAGb7d85290d [2019-12-28 05:32:04,616 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9a7321d7/f5702332c1a946f98af1a78de72f36b3 [2019-12-28 05:32:04,634 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:32:04,637 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:32:04,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:32:04,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:32:04,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:32:04,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:32:04" (1/1) ... [2019-12-28 05:32:04,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e24b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:32:04, skipping insertion in model container [2019-12-28 05:32:04,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:32:04" (1/1) ... [2019-12-28 05:32:04,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:32:04,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:32:05,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:32:05,214 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:32:05,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:32:05,333 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:32:05,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:32:05 WrapperNode [2019-12-28 05:32:05,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:32:05,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:32:05,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:32:05,335 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:32:05,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:32:05" (1/1) ... [2019-12-28 05:32:05,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:32:05" (1/1) ... [2019-12-28 05:32:05,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:32:05,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:32:05,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:32:05,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:32:05,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:32:05" (1/1) ... [2019-12-28 05:32:05,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:32:05" (1/1) ... [2019-12-28 05:32:05,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:32:05" (1/1) ... [2019-12-28 05:32:05,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:32:05" (1/1) ... [2019-12-28 05:32:05,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:32:05" (1/1) ... [2019-12-28 05:32:05,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:32:05" (1/1) ... [2019-12-28 05:32:05,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:32:05" (1/1) ... [2019-12-28 05:32:05,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:32:05,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:32:05,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:32:05,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:32:05,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:32:05" (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 [2019-12-28 05:32:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:32:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 05:32:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:32:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:32:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 05:32:05,472 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 05:32:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 05:32:05,473 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 05:32:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 05:32:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:32:05,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:32:05,475 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 05:32:05,863 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:32:05,864 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 05:32:05,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:32:05 BoogieIcfgContainer [2019-12-28 05:32:05,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:32:05,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:32:05,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:32:05,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:32:05,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:32:04" (1/3) ... [2019-12-28 05:32:05,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f37dfce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:32:05, skipping insertion in model container [2019-12-28 05:32:05,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:32:05" (2/3) ... [2019-12-28 05:32:05,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f37dfce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:32:05, skipping insertion in model container [2019-12-28 05:32:05,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:32:05" (3/3) ... [2019-12-28 05:32:05,874 INFO L109 eAbstractionObserver]: Analyzing ICFG thin000_tso.opt.i [2019-12-28 05:32:05,882 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:32:05,882 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:32:05,889 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:32:05,890 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:32:05,914 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,915 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,915 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,915 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,916 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,916 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,916 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,917 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,917 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,917 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,918 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,918 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,922 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,922 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,923 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,923 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,929 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,929 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,930 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,930 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:32:05,945 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-28 05:32:05,966 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:32:05,966 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:32:05,967 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:32:05,967 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:32:05,967 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:32:05,968 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:32:05,968 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:32:05,968 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:32:05,979 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 43 transitions [2019-12-28 05:32:06,007 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 287 states. [2019-12-28 05:32:06,009 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2019-12-28 05:32:06,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-28 05:32:06,020 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:32:06,021 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] [2019-12-28 05:32:06,022 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:32:06,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:32:06,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1269148698, now seen corresponding path program 1 times [2019-12-28 05:32:06,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:32:06,041 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731673855] [2019-12-28 05:32:06,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:32:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:32:06,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:32:06,351 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731673855] [2019-12-28 05:32:06,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:32:06,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 05:32:06,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1586637126] [2019-12-28 05:32:06,354 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:32:06,360 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:32:06,380 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 27 states and 26 transitions. [2019-12-28 05:32:06,381 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:32:06,386 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:32:06,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 05:32:06,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:32:06,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 05:32:06,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 05:32:06,403 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 4 states. [2019-12-28 05:32:06,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:32:06,480 INFO L93 Difference]: Finished difference Result 288 states and 647 transitions. [2019-12-28 05:32:06,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:32:06,485 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2019-12-28 05:32:06,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:32:06,501 INFO L225 Difference]: With dead ends: 288 [2019-12-28 05:32:06,501 INFO L226 Difference]: Without dead ends: 152 [2019-12-28 05:32:06,503 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 [2019-12-28 05:32:06,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-12-28 05:32:06,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2019-12-28 05:32:06,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-12-28 05:32:06,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 326 transitions. [2019-12-28 05:32:06,557 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 326 transitions. Word has length 26 [2019-12-28 05:32:06,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:32:06,558 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 326 transitions. [2019-12-28 05:32:06,558 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 05:32:06,558 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 326 transitions. [2019-12-28 05:32:06,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-28 05:32:06,562 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:32:06,562 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] [2019-12-28 05:32:06,563 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:32:06,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:32:06,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1093149970, now seen corresponding path program 1 times [2019-12-28 05:32:06,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:32:06,564 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325247706] [2019-12-28 05:32:06,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:32:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:32:06,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:32:06,755 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325247706] [2019-12-28 05:32:06,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:32:06,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:32:06,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [827263547] [2019-12-28 05:32:06,756 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:32:06,760 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:32:06,765 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 32 states and 35 transitions. [2019-12-28 05:32:06,765 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:32:06,830 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-28 05:32:06,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:32:06,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:32:06,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:32:06,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:32:06,838 INFO L87 Difference]: Start difference. First operand 152 states and 326 transitions. Second operand 6 states. [2019-12-28 05:32:06,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:32:06,930 INFO L93 Difference]: Finished difference Result 125 states and 242 transitions. [2019-12-28 05:32:06,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:32:06,933 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-12-28 05:32:06,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:32:06,935 INFO L225 Difference]: With dead ends: 125 [2019-12-28 05:32:06,935 INFO L226 Difference]: Without dead ends: 110 [2019-12-28 05:32:06,939 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:32:06,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-12-28 05:32:06,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-12-28 05:32:06,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-12-28 05:32:06,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 214 transitions. [2019-12-28 05:32:06,965 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 214 transitions. Word has length 27 [2019-12-28 05:32:06,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:32:06,965 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 214 transitions. [2019-12-28 05:32:06,965 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:32:06,965 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 214 transitions. [2019-12-28 05:32:06,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-28 05:32:06,970 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:32:06,971 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] [2019-12-28 05:32:06,971 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:32:06,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:32:06,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1001307011, now seen corresponding path program 1 times [2019-12-28 05:32:06,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:32:06,972 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039717133] [2019-12-28 05:32:06,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:32:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:32:07,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:32:07,156 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039717133] [2019-12-28 05:32:07,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:32:07,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:32:07,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1044889787] [2019-12-28 05:32:07,157 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:32:07,160 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:32:07,163 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 33 states and 36 transitions. [2019-12-28 05:32:07,163 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:32:07,202 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-28 05:32:07,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:32:07,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:32:07,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:32:07,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:32:07,207 INFO L87 Difference]: Start difference. First operand 110 states and 214 transitions. Second operand 8 states. [2019-12-28 05:32:07,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:32:07,353 INFO L93 Difference]: Finished difference Result 164 states and 331 transitions. [2019-12-28 05:32:07,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:32:07,357 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2019-12-28 05:32:07,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:32:07,359 INFO L225 Difference]: With dead ends: 164 [2019-12-28 05:32:07,359 INFO L226 Difference]: Without dead ends: 95 [2019-12-28 05:32:07,359 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-28 05:32:07,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-12-28 05:32:07,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-12-28 05:32:07,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-12-28 05:32:07,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 184 transitions. [2019-12-28 05:32:07,378 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 184 transitions. Word has length 28 [2019-12-28 05:32:07,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:32:07,379 INFO L462 AbstractCegarLoop]: Abstraction has 95 states and 184 transitions. [2019-12-28 05:32:07,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:32:07,379 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 184 transitions. [2019-12-28 05:32:07,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-28 05:32:07,380 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:32:07,380 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] [2019-12-28 05:32:07,381 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:32:07,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:32:07,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1059552791, now seen corresponding path program 2 times [2019-12-28 05:32:07,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:32:07,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39706610] [2019-12-28 05:32:07,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:32:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:32:07,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:32:07,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39706610] [2019-12-28 05:32:07,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:32:07,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 05:32:07,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2096516760] [2019-12-28 05:32:07,581 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:32:07,587 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:32:07,590 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 29 states and 28 transitions. [2019-12-28 05:32:07,590 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:32:07,591 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:32:07,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:32:07,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:32:07,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:32:07,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:32:07,592 INFO L87 Difference]: Start difference. First operand 95 states and 184 transitions. Second operand 8 states. [2019-12-28 05:32:07,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:32:07,702 INFO L93 Difference]: Finished difference Result 77 states and 142 transitions. [2019-12-28 05:32:07,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:32:07,702 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2019-12-28 05:32:07,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:32:07,702 INFO L225 Difference]: With dead ends: 77 [2019-12-28 05:32:07,703 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 05:32:07,703 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 [2019-12-28 05:32:07,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 05:32:07,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 05:32:07,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 05:32:07,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 05:32:07,704 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2019-12-28 05:32:07,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:32:07,704 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 05:32:07,704 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:32:07,705 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 05:32:07,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 05:32:07,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:32:07 BasicIcfg [2019-12-28 05:32:07,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:32:07,717 INFO L168 Benchmark]: Toolchain (without parser) took 3079.78 ms. Allocated memory was 144.7 MB in the beginning and 233.8 MB in the end (delta: 89.1 MB). Free memory was 100.0 MB in the beginning and 116.3 MB in the end (delta: -16.3 MB). Peak memory consumption was 72.8 MB. Max. memory is 7.1 GB. [2019-12-28 05:32:07,719 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-28 05:32:07,721 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.09 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 99.6 MB in the beginning and 158.2 MB in the end (delta: -58.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-28 05:32:07,722 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.09 ms. Allocated memory is still 201.3 MB. Free memory was 158.2 MB in the beginning and 156.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-28 05:32:07,729 INFO L168 Benchmark]: Boogie Preprocessor took 24.66 ms. Allocated memory is still 201.3 MB. Free memory was 156.3 MB in the beginning and 154.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-28 05:32:07,730 INFO L168 Benchmark]: RCFGBuilder took 457.48 ms. Allocated memory is still 201.3 MB. Free memory was 154.9 MB in the beginning and 136.8 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2019-12-28 05:32:07,732 INFO L168 Benchmark]: TraceAbstraction took 1847.12 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 136.1 MB in the beginning and 116.3 MB in the end (delta: 19.8 MB). Peak memory consumption was 52.3 MB. Max. memory is 7.1 GB. [2019-12-28 05:32:07,745 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 695.09 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 99.6 MB in the beginning and 158.2 MB in the end (delta: -58.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.09 ms. Allocated memory is still 201.3 MB. Free memory was 158.2 MB in the beginning and 156.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.66 ms. Allocated memory is still 201.3 MB. Free memory was 156.3 MB in the beginning and 154.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 457.48 ms. Allocated memory is still 201.3 MB. Free memory was 154.9 MB in the beginning and 136.8 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1847.12 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 136.1 MB in the beginning and 116.3 MB in the end (delta: 19.8 MB). Peak memory consumption was 52.3 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 3 procedures, 43 locations, 1 error locations. Result: SAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 144 SDtfs, 176 SDslu, 362 SDs, 0 SdLazy, 67 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=287occurred 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, 0.5s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 8463 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...