/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-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:49:05,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:49:05,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:49:05,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:49:05,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:49:05,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:49:05,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:49:05,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:49:05,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:49:05,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:49:05,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:49:05,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:49:05,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:49:05,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:49:05,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:49:05,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:49:05,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:49:05,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:49:05,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:49:05,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:49:05,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:49:05,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:49:05,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:49:05,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:49:05,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 18:49:05,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:49:05,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:49:05,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:49:05,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:49:05,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:49:05,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:49:05,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:49:05,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:49:05,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:49:05,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:49:05,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:49:05,421 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-SemanticLbe-MCR.epf [2019-12-27 18:49:05,436 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:49:05,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:49:05,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:49:05,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:49:05,439 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:49:05,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:49:05,439 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:49:05,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:49:05,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:49:05,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:49:05,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:49:05,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:49:05,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:49:05,440 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:49:05,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:49:05,441 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:49:05,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:49:05,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:49:05,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:49:05,442 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:49:05,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:49:05,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:49:05,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:49:05,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:49:05,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:49:05,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:49:05,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:49:05,443 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:49:05,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:49:05,444 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:49:05,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:49:05,723 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:49:05,739 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:49:05,743 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:49:05,744 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:49:05,745 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:49:05,747 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2019-12-27 18:49:05,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c3efd966/8fd7acaa4eef4fc78aca4b078aec260e/FLAG828580edb [2019-12-27 18:49:06,365 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:49:06,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2019-12-27 18:49:06,388 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c3efd966/8fd7acaa4eef4fc78aca4b078aec260e/FLAG828580edb [2019-12-27 18:49:06,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c3efd966/8fd7acaa4eef4fc78aca4b078aec260e [2019-12-27 18:49:06,688 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:49:06,690 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:49:06,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:49:06,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:49:06,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:49:06,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:49:06" (1/1) ... [2019-12-27 18:49:06,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78c507e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:49:06, skipping insertion in model container [2019-12-27 18:49:06,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:49:06" (1/1) ... [2019-12-27 18:49:06,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:49:06,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:49:07,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:49:07,230 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:49:07,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:49:07,382 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:49:07,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:49:07 WrapperNode [2019-12-27 18:49:07,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:49:07,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:49:07,384 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:49:07,384 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:49:07,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:49:07" (1/1) ... [2019-12-27 18:49:07,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:49:07" (1/1) ... [2019-12-27 18:49:07,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:49:07,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:49:07,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:49:07,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:49:07,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:49:07" (1/1) ... [2019-12-27 18:49:07,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:49:07" (1/1) ... [2019-12-27 18:49:07,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:49:07" (1/1) ... [2019-12-27 18:49:07,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:49:07" (1/1) ... [2019-12-27 18:49:07,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:49:07" (1/1) ... [2019-12-27 18:49:07,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:49:07" (1/1) ... [2019-12-27 18:49:07,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:49:07" (1/1) ... [2019-12-27 18:49:07,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:49:07,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:49:07,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:49:07,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:49:07,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:49:07" (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 18:49:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:49:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:49:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:49:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:49:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 18:49:07,536 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 18:49:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 18:49:07,537 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 18:49:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 18:49:07,537 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 18:49:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:49:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:49:07,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:49:07,539 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 18:49:07,897 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:49:07,897 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 18:49:07,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:49:07 BoogieIcfgContainer [2019-12-27 18:49:07,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:49:07,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:49:07,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:49:07,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:49:07,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:49:06" (1/3) ... [2019-12-27 18:49:07,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5b071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:49:07, skipping insertion in model container [2019-12-27 18:49:07,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:49:07" (2/3) ... [2019-12-27 18:49:07,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5b071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:49:07, skipping insertion in model container [2019-12-27 18:49:07,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:49:07" (3/3) ... [2019-12-27 18:49:07,908 INFO L109 eAbstractionObserver]: Analyzing ICFG safe032_tso.oepc.i [2019-12-27 18:49:07,917 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:49:07,917 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:49:07,924 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:49:07,925 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:49:07,954 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,955 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,955 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,955 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,956 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,956 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,957 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,957 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,957 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,957 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,958 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,958 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,958 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,959 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,959 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,959 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,960 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,960 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,964 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,964 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,965 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,965 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,972 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,972 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,972 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,973 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,988 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,988 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,989 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:07,989 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:49:08,004 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 18:49:08,022 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:49:08,022 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:49:08,022 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:49:08,022 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:49:08,023 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:49:08,023 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:49:08,023 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:49:08,023 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:49:08,038 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 18:49:08,040 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 18:49:08,100 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 18:49:08,100 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:49:08,106 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:49:08,109 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 18:49:08,135 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 18:49:08,136 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:49:08,137 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:49:08,138 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 18:49:08,140 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:49:09,568 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 18:49:09,722 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-12-27 18:49:09,788 INFO L206 etLargeBlockEncoding]: Checked pairs total: 421 [2019-12-27 18:49:09,788 INFO L214 etLargeBlockEncoding]: Total number of compositions: 42 [2019-12-27 18:49:09,791 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 18:49:09,801 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 18:49:09,803 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 18:49:09,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-27 18:49:09,810 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:49:09,811 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:49:09,811 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:49:09,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:49:09,817 INFO L82 PathProgramCache]: Analyzing trace with hash 551060525, now seen corresponding path program 1 times [2019-12-27 18:49:09,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:49:09,826 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107168440] [2019-12-27 18:49:09,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:49:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:49:10,022 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 18:49:10,023 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107168440] [2019-12-27 18:49:10,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:49:10,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:49:10,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [635155752] [2019-12-27 18:49:10,026 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:49:10,031 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:49:10,045 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 8 states and 7 transitions. [2019-12-27 18:49:10,046 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:49:10,050 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:49:10,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:49:10,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:49:10,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:49:10,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:49:10,068 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 18:49:10,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:49:10,092 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 18:49:10,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:49:10,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-27 18:49:10,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:49:10,103 INFO L225 Difference]: With dead ends: 42 [2019-12-27 18:49:10,103 INFO L226 Difference]: Without dead ends: 26 [2019-12-27 18:49:10,105 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 18:49:10,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-12-27 18:49:10,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-12-27 18:49:10,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-27 18:49:10,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 44 transitions. [2019-12-27 18:49:10,142 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 44 transitions. Word has length 7 [2019-12-27 18:49:10,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:49:10,143 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 44 transitions. [2019-12-27 18:49:10,143 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:49:10,143 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 44 transitions. [2019-12-27 18:49:10,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:49:10,144 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:49:10,144 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:49:10,144 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:49:10,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:49:10,144 INFO L82 PathProgramCache]: Analyzing trace with hash -96993118, now seen corresponding path program 1 times [2019-12-27 18:49:10,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:49:10,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608318313] [2019-12-27 18:49:10,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:49:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:49:10,215 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 18:49:10,216 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608318313] [2019-12-27 18:49:10,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:49:10,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:49:10,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1846522076] [2019-12-27 18:49:10,217 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:49:10,219 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:49:10,225 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 12 transitions. [2019-12-27 18:49:10,226 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:49:10,227 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:49:10,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:49:10,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:49:10,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:49:10,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:49:10,230 INFO L87 Difference]: Start difference. First operand 26 states and 44 transitions. Second operand 3 states. [2019-12-27 18:49:10,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:49:10,247 INFO L93 Difference]: Finished difference Result 25 states and 41 transitions. [2019-12-27 18:49:10,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:49:10,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 18:49:10,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:49:10,249 INFO L225 Difference]: With dead ends: 25 [2019-12-27 18:49:10,249 INFO L226 Difference]: Without dead ends: 25 [2019-12-27 18:49:10,250 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 18:49:10,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-27 18:49:10,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-27 18:49:10,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-27 18:49:10,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 41 transitions. [2019-12-27 18:49:10,258 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 41 transitions. Word has length 8 [2019-12-27 18:49:10,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:49:10,259 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 41 transitions. [2019-12-27 18:49:10,259 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:49:10,259 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 41 transitions. [2019-12-27 18:49:10,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:49:10,260 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:49:10,260 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:49:10,260 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:49:10,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:49:10,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1292766321, now seen corresponding path program 1 times [2019-12-27 18:49:10,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:49:10,261 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819641024] [2019-12-27 18:49:10,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:49:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:49:10,332 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 18:49:10,332 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819641024] [2019-12-27 18:49:10,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:49:10,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:49:10,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1033579755] [2019-12-27 18:49:10,333 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:49:10,334 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:49:10,338 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 16 states and 21 transitions. [2019-12-27 18:49:10,338 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:49:10,394 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 18:49:10,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:49:10,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:49:10,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:49:10,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:49:10,395 INFO L87 Difference]: Start difference. First operand 25 states and 41 transitions. Second operand 4 states. [2019-12-27 18:49:10,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:49:10,422 INFO L93 Difference]: Finished difference Result 26 states and 40 transitions. [2019-12-27 18:49:10,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:49:10,422 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 18:49:10,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:49:10,423 INFO L225 Difference]: With dead ends: 26 [2019-12-27 18:49:10,423 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 18:49:10,424 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:49:10,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 18:49:10,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 18:49:10,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 18:49:10,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 34 transitions. [2019-12-27 18:49:10,428 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 34 transitions. Word has length 9 [2019-12-27 18:49:10,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:49:10,428 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 34 transitions. [2019-12-27 18:49:10,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:49:10,428 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2019-12-27 18:49:10,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:49:10,429 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:49:10,429 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:49:10,429 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:49:10,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:49:10,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1288180212, now seen corresponding path program 1 times [2019-12-27 18:49:10,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:49:10,430 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086569530] [2019-12-27 18:49:10,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:49:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:49:10,484 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 18:49:10,484 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086569530] [2019-12-27 18:49:10,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:49:10,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:49:10,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1544889881] [2019-12-27 18:49:10,485 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:49:10,486 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:49:10,489 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 13 transitions. [2019-12-27 18:49:10,489 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:49:10,489 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:49:10,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:49:10,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:49:10,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:49:10,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:49:10,490 INFO L87 Difference]: Start difference. First operand 22 states and 34 transitions. Second operand 3 states. [2019-12-27 18:49:10,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:49:10,498 INFO L93 Difference]: Finished difference Result 22 states and 32 transitions. [2019-12-27 18:49:10,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:49:10,498 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 18:49:10,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:49:10,499 INFO L225 Difference]: With dead ends: 22 [2019-12-27 18:49:10,499 INFO L226 Difference]: Without dead ends: 13 [2019-12-27 18:49:10,499 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 18:49:10,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-27 18:49:10,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-27 18:49:10,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-27 18:49:10,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2019-12-27 18:49:10,502 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2019-12-27 18:49:10,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:49:10,502 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2019-12-27 18:49:10,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:49:10,503 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-12-27 18:49:10,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:49:10,503 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:49:10,503 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:49:10,503 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:49:10,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:49:10,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1278880761, now seen corresponding path program 1 times [2019-12-27 18:49:10,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:49:10,505 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278428795] [2019-12-27 18:49:10,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:49:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:49:10,583 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 18:49:10,583 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278428795] [2019-12-27 18:49:10,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:49:10,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:49:10,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1827360535] [2019-12-27 18:49:10,584 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:49:10,586 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:49:10,588 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 18:49:10,588 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:49:10,588 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:49:10,589 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:49:10,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:49:10,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:49:10,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:49:10,590 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 4 states. [2019-12-27 18:49:10,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:49:10,620 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2019-12-27 18:49:10,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:49:10,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 18:49:10,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:49:10,621 INFO L225 Difference]: With dead ends: 12 [2019-12-27 18:49:10,621 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 18:49:10,621 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:49:10,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 18:49:10,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 18:49:10,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 18:49:10,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 18:49:10,624 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-12-27 18:49:10,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:49:10,624 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 18:49:10,624 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:49:10,624 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 18:49:10,624 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 18:49:10,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:49:10 BasicIcfg [2019-12-27 18:49:10,629 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:49:10,633 INFO L168 Benchmark]: Toolchain (without parser) took 3941.62 ms. Allocated memory was 145.8 MB in the beginning and 245.9 MB in the end (delta: 100.1 MB). Free memory was 101.5 MB in the beginning and 126.2 MB in the end (delta: -24.7 MB). Peak memory consumption was 75.5 MB. Max. memory is 7.1 GB. [2019-12-27 18:49:10,635 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 18:49:10,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.92 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 101.1 MB in the beginning and 157.6 MB in the end (delta: -56.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 18:49:10,642 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.97 ms. Allocated memory is still 202.9 MB. Free memory was 157.6 MB in the beginning and 155.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:49:10,643 INFO L168 Benchmark]: Boogie Preprocessor took 28.69 ms. Allocated memory is still 202.9 MB. Free memory was 155.6 MB in the beginning and 154.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:49:10,644 INFO L168 Benchmark]: RCFGBuilder took 436.90 ms. Allocated memory is still 202.9 MB. Free memory was 154.3 MB in the beginning and 133.4 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-12-27 18:49:10,646 INFO L168 Benchmark]: TraceAbstraction took 2729.08 ms. Allocated memory was 202.9 MB in the beginning and 245.9 MB in the end (delta: 43.0 MB). Free memory was 133.4 MB in the beginning and 126.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 50.2 MB. Max. memory is 7.1 GB. [2019-12-27 18:49:10,655 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 691.92 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 101.1 MB in the beginning and 157.6 MB in the end (delta: -56.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.97 ms. Allocated memory is still 202.9 MB. Free memory was 157.6 MB in the beginning and 155.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.69 ms. Allocated memory is still 202.9 MB. Free memory was 155.6 MB in the beginning and 154.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 436.90 ms. Allocated memory is still 202.9 MB. Free memory was 154.3 MB in the beginning and 133.4 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2729.08 ms. Allocated memory was 202.9 MB in the beginning and 245.9 MB in the end (delta: 43.0 MB). Free memory was 133.4 MB in the beginning and 126.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 50.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 218 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 3 SemBasedMoverChecksPositive, 11 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 421 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 8 SDslu, 36 SDs, 0 SdLazy, 28 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 532 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...