/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:33:26,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:33:26,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:33:26,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:33:26,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:33:26,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:33:26,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:33:26,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:33:26,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:33:26,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:33:26,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:33:26,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:33:26,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:33:26,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:33:26,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:33:26,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:33:26,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:33:26,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:33:26,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:33:26,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:33:26,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:33:26,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:33:26,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:33:26,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:33:26,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 00:33:26,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 00:33:26,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 00:33:26,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 00:33:26,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 00:33:26,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 00:33:26,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 00:33:26,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 00:33:26,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 00:33:26,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 00:33:26,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 00:33:26,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 00:33:26,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 00:33:26,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 00:33:26,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:33:26,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:33:26,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:33:26,495 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-22 00:33:26,519 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:33:26,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:33:26,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:33:26,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:33:26,522 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:33:26,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:33:26,522 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:33:26,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:33:26,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:33:26,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:33:26,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:33:26,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:33:26,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:33:26,523 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:33:26,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:33:26,524 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:33:26,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:33:26,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:33:26,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:33:26,525 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:33:26,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:33:26,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:33:26,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:33:26,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:33:26,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:33:26,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:33:26,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:33:26,526 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:33:26,526 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:33:26,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:33:26,527 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:33:26,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:33:26,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:33:26,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:33:26,857 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:33:26,857 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:33:26,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2020-10-22 00:33:26,924 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5f17142f/67cf0c6eebe14879901a22f26a8458a0/FLAGc2b5c1ff7 [2020-10-22 00:33:27,499 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:33:27,501 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2020-10-22 00:33:27,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5f17142f/67cf0c6eebe14879901a22f26a8458a0/FLAGc2b5c1ff7 [2020-10-22 00:33:27,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5f17142f/67cf0c6eebe14879901a22f26a8458a0 [2020-10-22 00:33:27,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:33:27,776 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:33:27,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:33:27,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:33:27,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:33:27,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:33:27" (1/1) ... [2020-10-22 00:33:27,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a20a8f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:27, skipping insertion in model container [2020-10-22 00:33:27,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:33:27" (1/1) ... [2020-10-22 00:33:27,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:33:27,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:33:28,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:33:28,394 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:33:28,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:33:28,528 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:33:28,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:28 WrapperNode [2020-10-22 00:33:28,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:33:28,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:33:28,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:33:28,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:33:28,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:28" (1/1) ... [2020-10-22 00:33:28,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:28" (1/1) ... [2020-10-22 00:33:28,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:33:28,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:33:28,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:33:28,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:33:28,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:28" (1/1) ... [2020-10-22 00:33:28,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:28" (1/1) ... [2020-10-22 00:33:28,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:28" (1/1) ... [2020-10-22 00:33:28,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:28" (1/1) ... [2020-10-22 00:33:28,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:28" (1/1) ... [2020-10-22 00:33:28,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:28" (1/1) ... [2020-10-22 00:33:28,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:28" (1/1) ... [2020-10-22 00:33:28,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:33:28,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:33:28,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:33:28,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:33:28,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:28" (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 [2020-10-22 00:33:28,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:33:28,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 00:33:28,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:33:28,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:33:28,698 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 00:33:28,698 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 00:33:28,698 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 00:33:28,698 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 00:33:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 00:33:28,699 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 00:33:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:33:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 00:33:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:33:28,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:33:28,702 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 00:33:29,122 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:33:29,122 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 00:33:29,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:33:29 BoogieIcfgContainer [2020-10-22 00:33:29,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:33:29,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:33:29,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:33:29,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:33:29,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:33:27" (1/3) ... [2020-10-22 00:33:29,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe30933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:33:29, skipping insertion in model container [2020-10-22 00:33:29,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:28" (2/3) ... [2020-10-22 00:33:29,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe30933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:33:29, skipping insertion in model container [2020-10-22 00:33:29,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:33:29" (3/3) ... [2020-10-22 00:33:29,136 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.oepc.i [2020-10-22 00:33:29,149 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:33:29,149 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:33:29,158 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 00:33:29,159 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:33:29,191 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,191 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,192 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,192 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,192 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,193 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,194 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,194 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,194 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,196 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,196 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,196 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,196 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,201 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,201 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,202 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,202 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,208 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,209 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,209 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,215 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,215 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,215 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,216 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:29,217 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 00:33:29,233 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 00:33:29,254 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:33:29,254 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:33:29,254 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:33:29,254 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:33:29,254 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:33:29,254 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:33:29,255 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:33:29,255 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:33:29,268 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:33:29,269 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-22 00:33:29,271 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-22 00:33:29,272 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-10-22 00:33:29,339 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-10-22 00:33:29,339 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 00:33:29,346 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-22 00:33:29,349 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 00:33:31,217 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-22 00:33:31,377 INFO L131 LiptonReduction]: Checked pairs total: 2810 [2020-10-22 00:33:31,377 INFO L133 LiptonReduction]: Total number of compositions: 73 [2020-10-22 00:33:31,384 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-22 00:33:31,411 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-22 00:33:31,414 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-22 00:33:31,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 00:33:31,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:33:31,423 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:33:31,424 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:33:31,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:33:31,429 INFO L82 PathProgramCache]: Analyzing trace with hash -853874994, now seen corresponding path program 1 times [2020-10-22 00:33:31,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:33:31,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845507523] [2020-10-22 00:33:31,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:33:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:33:31,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:33:31,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845507523] [2020-10-22 00:33:31,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:33:31,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 00:33:31,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [45682112] [2020-10-22 00:33:31,712 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:33:31,715 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:33:31,729 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 00:33:31,730 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:33:31,734 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:33:31,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:33:31,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:33:31,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:33:31,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:33:31,753 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-22 00:33:31,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:33:31,791 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-22 00:33:31,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:33:31,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-22 00:33:31,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:33:31,809 INFO L225 Difference]: With dead ends: 282 [2020-10-22 00:33:31,809 INFO L226 Difference]: Without dead ends: 218 [2020-10-22 00:33:31,811 INFO L677 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 [2020-10-22 00:33:31,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-22 00:33:31,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-22 00:33:31,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-22 00:33:31,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-22 00:33:31,880 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-22 00:33:31,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:33:31,882 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-22 00:33:31,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:33:31,882 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-22 00:33:31,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 00:33:31,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:33:31,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:33:31,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:33:31,885 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:33:31,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:33:31,885 INFO L82 PathProgramCache]: Analyzing trace with hash -700352928, now seen corresponding path program 1 times [2020-10-22 00:33:31,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:33:31,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970190563] [2020-10-22 00:33:31,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:33:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:33:31,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:33:31,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970190563] [2020-10-22 00:33:31,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:33:31,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:33:31,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1603194882] [2020-10-22 00:33:31,963 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:33:31,965 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:33:31,967 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-10-22 00:33:31,967 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:33:31,988 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:33:31,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:33:31,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:33:31,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:33:31,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:33:31,990 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-22 00:33:32,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:33:32,015 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-10-22 00:33:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:33:32,016 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-22 00:33:32,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:33:32,017 INFO L225 Difference]: With dead ends: 242 [2020-10-22 00:33:32,018 INFO L226 Difference]: Without dead ends: 146 [2020-10-22 00:33:32,019 INFO L677 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 [2020-10-22 00:33:32,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-22 00:33:32,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-22 00:33:32,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-22 00:33:32,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-10-22 00:33:32,033 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-10-22 00:33:32,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:33:32,034 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-10-22 00:33:32,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:33:32,034 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-10-22 00:33:32,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 00:33:32,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:33:32,036 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:33:32,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:33:32,036 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:33:32,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:33:32,036 INFO L82 PathProgramCache]: Analyzing trace with hash 2063010818, now seen corresponding path program 1 times [2020-10-22 00:33:32,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:33:32,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422551682] [2020-10-22 00:33:32,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:33:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:33:32,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:33:32,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422551682] [2020-10-22 00:33:32,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:33:32,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 00:33:32,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [265860980] [2020-10-22 00:33:32,091 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:33:32,092 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:33:32,095 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-10-22 00:33:32,095 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:33:32,167 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:33:32,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:33:32,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:33:32,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:33:32,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:33:32,169 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-10-22 00:33:32,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:33:32,182 INFO L93 Difference]: Finished difference Result 140 states and 343 transitions. [2020-10-22 00:33:32,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:33:32,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-22 00:33:32,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:33:32,185 INFO L225 Difference]: With dead ends: 140 [2020-10-22 00:33:32,185 INFO L226 Difference]: Without dead ends: 140 [2020-10-22 00:33:32,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:33:32,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-22 00:33:32,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-22 00:33:32,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-22 00:33:32,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 343 transitions. [2020-10-22 00:33:32,197 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 343 transitions. Word has length 11 [2020-10-22 00:33:32,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:33:32,198 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 343 transitions. [2020-10-22 00:33:32,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:33:32,198 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 343 transitions. [2020-10-22 00:33:32,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 00:33:32,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:33:32,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:33:32,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:33:32,200 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:33:32,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:33:32,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1374781277, now seen corresponding path program 1 times [2020-10-22 00:33:32,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:33:32,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234184513] [2020-10-22 00:33:32,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:33:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:33:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:33:32,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234184513] [2020-10-22 00:33:32,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:33:32,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:33:32,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [603624098] [2020-10-22 00:33:32,258 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:33:32,260 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:33:32,264 INFO L252 McrAutomatonBuilder]: Finished intersection with 35 states and 63 transitions. [2020-10-22 00:33:32,264 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:33:32,531 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:33:32,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:33:32,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:33:32,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:33:32,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:33:32,533 INFO L87 Difference]: Start difference. First operand 140 states and 343 transitions. Second operand 4 states. [2020-10-22 00:33:32,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:33:32,557 INFO L93 Difference]: Finished difference Result 158 states and 376 transitions. [2020-10-22 00:33:32,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:33:32,558 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-22 00:33:32,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:33:32,559 INFO L225 Difference]: With dead ends: 158 [2020-10-22 00:33:32,559 INFO L226 Difference]: Without dead ends: 68 [2020-10-22 00:33:32,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:33:32,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-22 00:33:32,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-22 00:33:32,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-22 00:33:32,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-10-22 00:33:32,566 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-10-22 00:33:32,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:33:32,566 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-10-22 00:33:32,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:33:32,566 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-10-22 00:33:32,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 00:33:32,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:33:32,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:33:32,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 00:33:32,568 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:33:32,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:33:32,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1721558133, now seen corresponding path program 1 times [2020-10-22 00:33:32,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:33:32,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570553523] [2020-10-22 00:33:32,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:33:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:33:32,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:33:32,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570553523] [2020-10-22 00:33:32,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:33:32,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:33:32,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1418920827] [2020-10-22 00:33:32,620 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:33:32,621 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:33:32,624 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions. [2020-10-22 00:33:32,625 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:33:32,705 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:33:32,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:33:32,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:33:32,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:33:32,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:33:32,706 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-10-22 00:33:32,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:33:32,718 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2020-10-22 00:33:32,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:33:32,719 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-22 00:33:32,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:33:32,719 INFO L225 Difference]: With dead ends: 56 [2020-10-22 00:33:32,719 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 00:33:32,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:33:32,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 00:33:32,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 00:33:32,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 00:33:32,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 00:33:32,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-22 00:33:32,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:33:32,721 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 00:33:32,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:33:32,721 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 00:33:32,721 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 00:33:32,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 00:33:32,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:33:32 BasicIcfg [2020-10-22 00:33:32,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:33:32,727 INFO L168 Benchmark]: Toolchain (without parser) took 4956.45 ms. Allocated memory was 144.7 MB in the beginning and 250.6 MB in the end (delta: 105.9 MB). Free memory was 99.5 MB in the beginning and 103.8 MB in the end (delta: -4.3 MB). Peak memory consumption was 101.6 MB. Max. memory is 7.1 GB. [2020-10-22 00:33:32,728 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 00:33:32,730 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.70 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 98.5 MB in the beginning and 156.2 MB in the end (delta: -57.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-10-22 00:33:32,730 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.76 ms. Allocated memory is still 201.9 MB. Free memory was 156.2 MB in the beginning and 154.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-22 00:33:32,731 INFO L168 Benchmark]: Boogie Preprocessor took 30.43 ms. Allocated memory is still 201.9 MB. Free memory was 153.4 MB in the beginning and 152.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 00:33:32,732 INFO L168 Benchmark]: RCFGBuilder took 508.18 ms. Allocated memory is still 201.9 MB. Free memory was 152.1 MB in the beginning and 128.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-10-22 00:33:32,733 INFO L168 Benchmark]: TraceAbstraction took 3598.44 ms. Allocated memory was 201.9 MB in the beginning and 250.6 MB in the end (delta: 48.8 MB). Free memory was 127.3 MB in the beginning and 103.8 MB in the end (delta: 23.5 MB). Peak memory consumption was 72.2 MB. Max. memory is 7.1 GB. [2020-10-22 00:33:32,739 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 751.70 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 98.5 MB in the beginning and 156.2 MB in the end (delta: -57.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.76 ms. Allocated memory is still 201.9 MB. Free memory was 156.2 MB in the beginning and 154.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.43 ms. Allocated memory is still 201.9 MB. Free memory was 153.4 MB in the beginning and 152.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 508.18 ms. Allocated memory is still 201.9 MB. Free memory was 152.1 MB in the beginning and 128.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3598.44 ms. Allocated memory was 201.9 MB in the beginning and 250.6 MB in the end (delta: 48.8 MB). Free memory was 127.3 MB in the beginning and 103.8 MB in the end (delta: 23.5 MB). Peak memory consumption was 72.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 801 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 59 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.1s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 73 TotalNumberOfCompositions, 2810 MoverChecksTotal - PositiveResult [Line: 17]: 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, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 81 SDtfs, 63 SDslu, 56 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1434 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...