/usr/bin/java -Xmx16000000000 -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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:09:24,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:09:24,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:09:24,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:09:24,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:09:24,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:09:24,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:09:24,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:09:24,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:09:24,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:09:24,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:09:24,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:09:24,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:09:24,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:09:24,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:09:24,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:09:24,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:09:24,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:09:24,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:09:24,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:09:24,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:09:24,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:09:24,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:09:24,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:09:24,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:09:24,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:09:24,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:09:24,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:09:24,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:09:24,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:09:24,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:09:24,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:09:24,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:09:24,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:09:24,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:09:24,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:09:24,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:09:24,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:09:24,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:09:24,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:09:24,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:09:24,467 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.epf [2020-10-15 22:09:24,521 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:09:24,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:09:24,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:09:24,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:09:24,523 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:09:24,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:09:24,523 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:09:24,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:09:24,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:09:24,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:09:24,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:09:24,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:09:24,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:09:24,525 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:09:24,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:09:24,526 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:09:24,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:09:24,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:09:24,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:09:24,527 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:09:24,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:09:24,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:09:24,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:09:24,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:09:24,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:09:24,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:09:24,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:09:24,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:09:24,529 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:09:24,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:09:24,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:09:24,821 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:09:24,822 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:09:24,822 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:09:24,823 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2020-10-15 22:09:24,873 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33236364a/512ddfc3555948ccaaa8ef31cf4a254d/FLAG2878b5252 [2020-10-15 22:09:25,344 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:09:25,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2020-10-15 22:09:25,361 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33236364a/512ddfc3555948ccaaa8ef31cf4a254d/FLAG2878b5252 [2020-10-15 22:09:25,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33236364a/512ddfc3555948ccaaa8ef31cf4a254d [2020-10-15 22:09:25,708 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:09:25,710 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:09:25,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:09:25,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:09:25,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:09:25,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:09:25" (1/1) ... [2020-10-15 22:09:25,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d94fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:25, skipping insertion in model container [2020-10-15 22:09:25,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:09:25" (1/1) ... [2020-10-15 22:09:25,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:09:25,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:09:26,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:09:26,219 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:09:26,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:09:26,390 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:09:26,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:26 WrapperNode [2020-10-15 22:09:26,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:09:26,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:09:26,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:09:26,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:09:26,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:26" (1/1) ... [2020-10-15 22:09:26,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:26" (1/1) ... [2020-10-15 22:09:26,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:09:26,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:09:26,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:09:26,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:09:26,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:26" (1/1) ... [2020-10-15 22:09:26,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:26" (1/1) ... [2020-10-15 22:09:26,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:26" (1/1) ... [2020-10-15 22:09:26,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:26" (1/1) ... [2020-10-15 22:09:26,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:26" (1/1) ... [2020-10-15 22:09:26,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:26" (1/1) ... [2020-10-15 22:09:26,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:26" (1/1) ... [2020-10-15 22:09:26,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:09:26,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:09:26,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:09:26,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:09:26,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:26" (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 [2020-10-15 22:09:26,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:09:26,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:09:26,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:09:26,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:09:26,566 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:09:26,567 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:09:26,567 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:09:26,567 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:09:26,567 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:09:26,567 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:09:26,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:09:26,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:09:26,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:09:26,570 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:09:27,009 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:09:27,009 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:09:27,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:09:27 BoogieIcfgContainer [2020-10-15 22:09:27,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:09:27,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:09:27,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:09:27,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:09:27,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:09:25" (1/3) ... [2020-10-15 22:09:27,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d8aeafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:09:27, skipping insertion in model container [2020-10-15 22:09:27,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:26" (2/3) ... [2020-10-15 22:09:27,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d8aeafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:09:27, skipping insertion in model container [2020-10-15 22:09:27,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:09:27" (3/3) ... [2020-10-15 22:09:27,022 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.oepc.i [2020-10-15 22:09:27,035 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:09:27,035 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:09:27,044 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:09:27,045 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:09:27,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,073 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,074 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,075 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,075 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,075 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,076 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,077 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,077 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,082 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,082 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,082 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,095 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,095 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,096 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,103 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,103 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,104 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,104 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:27,123 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 22:09:27,147 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:09:27,148 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:09:27,148 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:09:27,148 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:09:27,148 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:09:27,148 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:09:27,149 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:09:27,149 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:09:27,167 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:09:27,171 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-15 22:09:27,174 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-15 22:09:27,176 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-15 22:09:27,248 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-15 22:09:27,248 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:09:27,255 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 22:09:27,260 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 22:09:28,744 INFO L132 LiptonReduction]: Checked pairs total: 2579 [2020-10-15 22:09:28,744 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-15 22:09:28,752 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-15 22:09:28,782 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-15 22:09:28,784 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-15 22:09:28,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 22:09:28,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:28,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:28,794 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:28,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:28,800 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-10-15 22:09:28,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:28,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162412679] [2020-10-15 22:09:28,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:29,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:29,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162412679] [2020-10-15 22:09:29,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:29,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:09:29,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783140722] [2020-10-15 22:09:29,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 22:09:29,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:29,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 22:09:29,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 22:09:29,035 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-15 22:09:29,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:29,068 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-15 22:09:29,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 22:09:29,070 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-15 22:09:29,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:29,087 INFO L225 Difference]: With dead ends: 362 [2020-10-15 22:09:29,088 INFO L226 Difference]: Without dead ends: 298 [2020-10-15 22:09:29,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 22:09:29,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-15 22:09:29,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-15 22:09:29,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-15 22:09:29,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-15 22:09:29,168 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-15 22:09:29,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:29,169 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-15 22:09:29,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 22:09:29,169 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-15 22:09:29,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:09:29,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:29,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:29,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:09:29,172 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:29,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:29,172 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-10-15 22:09:29,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:29,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760096463] [2020-10-15 22:09:29,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:29,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:29,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760096463] [2020-10-15 22:09:29,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:29,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:09:29,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899156437] [2020-10-15 22:09:29,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:09:29,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:29,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:09:29,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:09:29,314 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-15 22:09:29,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:29,354 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-15 22:09:29,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:09:29,355 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 22:09:29,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:29,358 INFO L225 Difference]: With dead ends: 330 [2020-10-15 22:09:29,358 INFO L226 Difference]: Without dead ends: 266 [2020-10-15 22:09:29,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:09:29,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-15 22:09:29,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-15 22:09:29,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-15 22:09:29,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-15 22:09:29,385 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-15 22:09:29,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:29,385 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-15 22:09:29,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:09:29,386 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-15 22:09:29,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:09:29,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:29,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:29,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:09:29,388 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:29,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:29,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1226466257, now seen corresponding path program 1 times [2020-10-15 22:09:29,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:29,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006264650] [2020-10-15 22:09:29,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:29,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:29,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006264650] [2020-10-15 22:09:29,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:29,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:09:29,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978931972] [2020-10-15 22:09:29,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:09:29,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:29,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:09:29,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:09:29,527 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-10-15 22:09:29,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:29,587 INFO L93 Difference]: Finished difference Result 326 states and 882 transitions. [2020-10-15 22:09:29,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:09:29,587 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-15 22:09:29,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:29,589 INFO L225 Difference]: With dead ends: 326 [2020-10-15 22:09:29,589 INFO L226 Difference]: Without dead ends: 158 [2020-10-15 22:09:29,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:09:29,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-15 22:09:29,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-10-15 22:09:29,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-15 22:09:29,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 396 transitions. [2020-10-15 22:09:29,600 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 396 transitions. Word has length 10 [2020-10-15 22:09:29,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:29,601 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 396 transitions. [2020-10-15 22:09:29,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:09:29,601 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 396 transitions. [2020-10-15 22:09:29,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:09:29,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:29,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:29,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:09:29,603 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:29,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:29,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1670897012, now seen corresponding path program 1 times [2020-10-15 22:09:29,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:29,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56297569] [2020-10-15 22:09:29,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:29,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:29,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56297569] [2020-10-15 22:09:29,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:29,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:09:29,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430408419] [2020-10-15 22:09:29,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:09:29,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:29,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:09:29,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:09:29,666 INFO L87 Difference]: Start difference. First operand 158 states and 396 transitions. Second operand 5 states. [2020-10-15 22:09:29,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:29,721 INFO L93 Difference]: Finished difference Result 194 states and 470 transitions. [2020-10-15 22:09:29,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:09:29,722 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-15 22:09:29,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:29,723 INFO L225 Difference]: With dead ends: 194 [2020-10-15 22:09:29,723 INFO L226 Difference]: Without dead ends: 74 [2020-10-15 22:09:29,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:09:29,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-15 22:09:29,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-15 22:09:29,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-15 22:09:29,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 164 transitions. [2020-10-15 22:09:29,735 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 164 transitions. Word has length 12 [2020-10-15 22:09:29,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:29,735 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 164 transitions. [2020-10-15 22:09:29,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:09:29,735 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 164 transitions. [2020-10-15 22:09:29,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:09:29,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:29,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:29,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:09:29,737 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:29,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:29,737 INFO L82 PathProgramCache]: Analyzing trace with hash -2118870046, now seen corresponding path program 1 times [2020-10-15 22:09:29,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:29,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343527051] [2020-10-15 22:09:29,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:29,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:29,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343527051] [2020-10-15 22:09:29,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:29,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:09:29,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427218642] [2020-10-15 22:09:29,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:09:29,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:29,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:09:29,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:09:29,854 INFO L87 Difference]: Start difference. First operand 74 states and 164 transitions. Second operand 5 states. [2020-10-15 22:09:29,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:29,890 INFO L93 Difference]: Finished difference Result 62 states and 132 transitions. [2020-10-15 22:09:29,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:09:29,891 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-15 22:09:29,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:29,891 INFO L225 Difference]: With dead ends: 62 [2020-10-15 22:09:29,891 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:09:29,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:09:29,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:09:29,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:09:29,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:09:29,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:09:29,893 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-15 22:09:29,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:29,893 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:09:29,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:09:29,894 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:09:29,894 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:09:29,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:09:29,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:09:29 BasicIcfg [2020-10-15 22:09:29,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:09:29,901 INFO L168 Benchmark]: Toolchain (without parser) took 4189.97 ms. Allocated memory was 253.2 MB in the beginning and 373.3 MB in the end (delta: 120.1 MB). Free memory was 208.6 MB in the beginning and 296.2 MB in the end (delta: -87.6 MB). Peak memory consumption was 32.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:09:29,901 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:09:29,902 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.15 ms. Allocated memory was 253.2 MB in the beginning and 320.9 MB in the end (delta: 67.6 MB). Free memory was 208.6 MB in the beginning and 274.2 MB in the end (delta: -65.6 MB). Peak memory consumption was 29.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:09:29,903 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.25 ms. Allocated memory is still 320.9 MB. Free memory was 274.2 MB in the beginning and 271.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:09:29,904 INFO L168 Benchmark]: Boogie Preprocessor took 27.51 ms. Allocated memory is still 320.9 MB. Free memory was 271.7 MB in the beginning and 269.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:09:29,905 INFO L168 Benchmark]: RCFGBuilder took 542.67 ms. Allocated memory is still 320.9 MB. Free memory was 269.2 MB in the beginning and 247.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-15 22:09:29,906 INFO L168 Benchmark]: TraceAbstraction took 2884.97 ms. Allocated memory was 320.9 MB in the beginning and 373.3 MB in the end (delta: 52.4 MB). Free memory was 247.3 MB in the beginning and 296.2 MB in the end (delta: -48.8 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.2 GB. [2020-10-15 22:09:29,910 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 680.15 ms. Allocated memory was 253.2 MB in the beginning and 320.9 MB in the end (delta: 67.6 MB). Free memory was 208.6 MB in the beginning and 274.2 MB in the end (delta: -65.6 MB). Peak memory consumption was 29.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 49.25 ms. Allocated memory is still 320.9 MB. Free memory was 274.2 MB in the beginning and 271.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 27.51 ms. Allocated memory is still 320.9 MB. Free memory was 271.7 MB in the beginning and 269.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 542.67 ms. Allocated memory is still 320.9 MB. Free memory was 269.2 MB in the beginning and 247.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2884.97 ms. Allocated memory was 320.9 MB in the beginning and 373.3 MB in the end (delta: 52.4 MB). Free memory was 247.3 MB in the beginning and 296.2 MB in the end (delta: -48.8 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 879 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 81 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 79 PlacesBefore, 32 PlacesAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2579 MoverChecksTotal - PositiveResult [Line: 7]: 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 110 SDtfs, 125 SDslu, 139 SDs, 0 SdLazy, 34 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1600 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...