/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 19:01:45,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 19:01:45,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 19:01:45,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 19:01:45,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 19:01:45,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 19:01:45,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 19:01:45,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 19:01:45,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 19:01:45,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 19:01:45,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 19:01:45,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 19:01:45,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 19:01:45,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 19:01:45,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 19:01:45,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 19:01:45,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 19:01:45,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 19:01:45,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 19:01:45,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 19:01:45,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 19:01:45,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 19:01:45,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 19:01:45,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 19:01:45,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 19:01:45,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 19:01:45,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 19:01:45,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 19:01:45,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 19:01:45,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 19:01:45,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 19:01:45,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 19:01:45,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 19:01:45,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 19:01:45,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 19:01:45,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 19:01:45,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 19:01:45,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 19:01:45,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 19:01:45,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 19:01:45,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 19:01:45,628 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 [2019-12-18 19:01:45,652 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 19:01:45,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 19:01:45,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 19:01:45,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 19:01:45,655 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 19:01:45,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 19:01:45,656 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 19:01:45,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 19:01:45,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 19:01:45,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 19:01:45,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 19:01:45,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 19:01:45,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 19:01:45,658 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 19:01:45,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 19:01:45,659 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 19:01:45,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 19:01:45,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 19:01:45,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 19:01:45,659 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 19:01:45,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 19:01:45,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 19:01:45,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 19:01:45,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 19:01:45,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 19:01:45,660 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 19:01:45,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 19:01:45,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 19:01:45,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 19:01:45,974 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 19:01:45,993 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 19:01:45,997 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 19:01:45,998 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 19:01:45,998 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 19:01:45,999 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2019-12-18 19:01:46,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7d1c750f/dc4d9a0642924009a2bd3860a09e52fd/FLAGaf9a18eed [2019-12-18 19:01:46,607 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 19:01:46,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2019-12-18 19:01:46,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7d1c750f/dc4d9a0642924009a2bd3860a09e52fd/FLAGaf9a18eed [2019-12-18 19:01:46,826 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7d1c750f/dc4d9a0642924009a2bd3860a09e52fd [2019-12-18 19:01:46,835 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 19:01:46,837 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 19:01:46,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 19:01:46,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 19:01:46,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 19:01:46,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:01:46" (1/1) ... [2019-12-18 19:01:46,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ecf595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:01:46, skipping insertion in model container [2019-12-18 19:01:46,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:01:46" (1/1) ... [2019-12-18 19:01:46,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 19:01:46,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 19:01:47,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:01:47,389 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 19:01:47,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:01:47,551 INFO L208 MainTranslator]: Completed translation [2019-12-18 19:01:47,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:01:47 WrapperNode [2019-12-18 19:01:47,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 19:01:47,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 19:01:47,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 19:01:47,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 19:01:47,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:01:47" (1/1) ... [2019-12-18 19:01:47,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:01:47" (1/1) ... [2019-12-18 19:01:47,598 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 19:01:47,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 19:01:47,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 19:01:47,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 19:01:47,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:01:47" (1/1) ... [2019-12-18 19:01:47,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:01:47" (1/1) ... [2019-12-18 19:01:47,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:01:47" (1/1) ... [2019-12-18 19:01:47,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:01:47" (1/1) ... [2019-12-18 19:01:47,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:01:47" (1/1) ... [2019-12-18 19:01:47,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:01:47" (1/1) ... [2019-12-18 19:01:47,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:01:47" (1/1) ... [2019-12-18 19:01:47,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 19:01:47,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 19:01:47,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 19:01:47,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 19:01:47,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:01:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 19:01:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 19:01:47,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 19:01:47,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 19:01:47,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 19:01:47,690 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 19:01:47,691 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 19:01:47,691 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 19:01:47,691 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 19:01:47,692 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 19:01:47,693 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 19:01:47,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 19:01:47,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 19:01:47,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 19:01:47,698 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 19:01:48,063 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 19:01:48,063 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 19:01:48,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:01:48 BoogieIcfgContainer [2019-12-18 19:01:48,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 19:01:48,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 19:01:48,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 19:01:48,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 19:01:48,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 07:01:46" (1/3) ... [2019-12-18 19:01:48,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b01dc43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:01:48, skipping insertion in model container [2019-12-18 19:01:48,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:01:47" (2/3) ... [2019-12-18 19:01:48,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b01dc43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:01:48, skipping insertion in model container [2019-12-18 19:01:48,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:01:48" (3/3) ... [2019-12-18 19:01:48,074 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc.i [2019-12-18 19:01:48,083 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 19:01:48,083 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 19:01:48,091 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 19:01:48,092 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 19:01:48,119 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,120 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,120 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,121 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,122 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,122 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,122 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,123 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,123 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,123 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,136 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,136 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,137 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,137 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,137 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,138 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,138 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,138 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,142 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,143 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,143 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,144 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,152 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,153 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,153 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,154 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,166 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,166 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,166 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,167 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:01:48,183 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 19:01:48,206 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:01:48,207 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:01:48,207 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:01:48,207 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:01:48,207 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:01:48,207 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:01:48,208 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:01:48,209 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:01:48,227 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 19:01:48,231 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 19:01:48,281 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 19:01:48,281 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:01:48,288 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 19:01:48,291 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 19:01:48,308 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 19:01:48,308 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:01:48,309 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 19:01:48,311 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 19:01:48,312 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 19:01:50,036 INFO L206 etLargeBlockEncoding]: Checked pairs total: 453 [2019-12-18 19:01:50,037 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-18 19:01:50,042 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 19:01:50,062 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 19:01:50,065 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 19:01:50,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 19:01:50,077 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:01:50,078 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:01:50,078 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:01:50,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:01:50,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1890044162, now seen corresponding path program 1 times [2019-12-18 19:01:50,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:01:50,100 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740467113] [2019-12-18 19:01:50,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:01:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:01:50,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:01:50,408 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740467113] [2019-12-18 19:01:50,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:01:50,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 19:01:50,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948869317] [2019-12-18 19:01:50,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:01:50,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:01:50,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:01:50,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:01:50,434 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 19:01:50,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:01:50,468 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 19:01:50,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:01:50,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 19:01:50,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:01:50,481 INFO L225 Difference]: With dead ends: 42 [2019-12-18 19:01:50,481 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 19:01:50,482 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:01:50,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 19:01:50,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 19:01:50,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 19:01:50,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 19:01:50,517 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 19:01:50,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:01:50,519 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 19:01:50,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:01:50,519 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 19:01:50,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 19:01:50,520 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:01:50,520 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:01:50,520 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:01:50,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:01:50,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1538098686, now seen corresponding path program 1 times [2019-12-18 19:01:50,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:01:50,521 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433312745] [2019-12-18 19:01:50,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:01:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:01:50,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:01:50,617 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433312745] [2019-12-18 19:01:50,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:01:50,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:01:50,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124773369] [2019-12-18 19:01:50,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 19:01:50,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:01:50,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 19:01:50,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 19:01:50,623 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 19:01:50,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:01:50,661 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 19:01:50,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 19:01:50,662 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 19:01:50,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:01:50,663 INFO L225 Difference]: With dead ends: 36 [2019-12-18 19:01:50,663 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 19:01:50,664 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 19:01:50,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 19:01:50,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 19:01:50,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 19:01:50,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-18 19:01:50,672 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-18 19:01:50,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:01:50,674 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-18 19:01:50,674 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 19:01:50,674 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-18 19:01:50,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 19:01:50,676 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:01:50,676 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:01:50,676 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:01:50,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:01:50,677 INFO L82 PathProgramCache]: Analyzing trace with hash -548239570, now seen corresponding path program 1 times [2019-12-18 19:01:50,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:01:50,678 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100748134] [2019-12-18 19:01:50,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:01:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:01:50,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:01:50,832 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100748134] [2019-12-18 19:01:50,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:01:50,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 19:01:50,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027015736] [2019-12-18 19:01:50,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 19:01:50,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:01:50,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 19:01:50,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-18 19:01:50,835 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 6 states. [2019-12-18 19:01:50,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:01:50,938 INFO L93 Difference]: Finished difference Result 28 states and 45 transitions. [2019-12-18 19:01:50,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 19:01:50,939 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-18 19:01:50,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:01:50,940 INFO L225 Difference]: With dead ends: 28 [2019-12-18 19:01:50,940 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 19:01:50,941 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-18 19:01:50,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 19:01:50,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 19:01:50,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 19:01:50,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-18 19:01:50,949 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 10 [2019-12-18 19:01:50,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:01:50,949 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-18 19:01:50,949 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 19:01:50,949 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-18 19:01:50,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 19:01:50,953 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:01:50,953 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:01:50,953 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:01:50,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:01:50,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1277925028, now seen corresponding path program 1 times [2019-12-18 19:01:50,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:01:50,954 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438994833] [2019-12-18 19:01:50,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:01:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:01:51,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:01:51,028 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438994833] [2019-12-18 19:01:51,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:01:51,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:01:51,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732114463] [2019-12-18 19:01:51,029 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 19:01:51,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:01:51,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 19:01:51,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 19:01:51,030 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-18 19:01:51,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:01:51,045 INFO L93 Difference]: Finished difference Result 24 states and 34 transitions. [2019-12-18 19:01:51,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 19:01:51,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 19:01:51,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:01:51,046 INFO L225 Difference]: With dead ends: 24 [2019-12-18 19:01:51,046 INFO L226 Difference]: Without dead ends: 14 [2019-12-18 19:01:51,047 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 19:01:51,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-18 19:01:51,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-18 19:01:51,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-18 19:01:51,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-18 19:01:51,049 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2019-12-18 19:01:51,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:01:51,050 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-18 19:01:51,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 19:01:51,050 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-18 19:01:51,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 19:01:51,051 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:01:51,051 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:01:51,051 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:01:51,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:01:51,051 INFO L82 PathProgramCache]: Analyzing trace with hash 184515028, now seen corresponding path program 2 times [2019-12-18 19:01:51,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:01:51,052 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105684666] [2019-12-18 19:01:51,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:01:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:01:51,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:01:51,090 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105684666] [2019-12-18 19:01:51,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:01:51,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:01:51,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309135904] [2019-12-18 19:01:51,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 19:01:51,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:01:51,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 19:01:51,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 19:01:51,092 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 4 states. [2019-12-18 19:01:51,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:01:51,105 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-18 19:01:51,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 19:01:51,105 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 19:01:51,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:01:51,106 INFO L225 Difference]: With dead ends: 13 [2019-12-18 19:01:51,106 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 19:01:51,106 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 19:01:51,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 19:01:51,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 19:01:51,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 19:01:51,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 19:01:51,107 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 19:01:51,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:01:51,108 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 19:01:51,108 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 19:01:51,108 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 19:01:51,108 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 19:01:51,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 07:01:51 BasicIcfg [2019-12-18 19:01:51,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 19:01:51,115 INFO L168 Benchmark]: Toolchain (without parser) took 4277.87 ms. Allocated memory was 145.8 MB in the beginning and 245.4 MB in the end (delta: 99.6 MB). Free memory was 102.3 MB in the beginning and 118.3 MB in the end (delta: -16.0 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2019-12-18 19:01:51,116 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 145.8 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-18 19:01:51,117 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.49 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 102.1 MB in the beginning and 161.2 MB in the end (delta: -59.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2019-12-18 19:01:51,118 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.23 ms. Allocated memory is still 203.9 MB. Free memory was 161.2 MB in the beginning and 159.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 19:01:51,119 INFO L168 Benchmark]: Boogie Preprocessor took 26.24 ms. Allocated memory is still 203.9 MB. Free memory was 159.2 MB in the beginning and 157.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 19:01:51,119 INFO L168 Benchmark]: RCFGBuilder took 440.05 ms. Allocated memory is still 203.9 MB. Free memory was 157.9 MB in the beginning and 137.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-18 19:01:51,120 INFO L168 Benchmark]: TraceAbstraction took 3046.38 ms. Allocated memory was 203.9 MB in the beginning and 245.4 MB in the end (delta: 41.4 MB). Free memory was 136.7 MB in the beginning and 118.3 MB in the end (delta: 18.4 MB). Peak memory consumption was 59.8 MB. Max. memory is 7.1 GB. [2019-12-18 19:01:51,124 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 145.8 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.49 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 102.1 MB in the beginning and 161.2 MB in the end (delta: -59.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.23 ms. Allocated memory is still 203.9 MB. Free memory was 161.2 MB in the beginning and 159.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.24 ms. Allocated memory is still 203.9 MB. Free memory was 159.2 MB in the beginning and 157.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 440.05 ms. Allocated memory is still 203.9 MB. Free memory was 157.9 MB in the beginning and 137.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3046.38 ms. Allocated memory was 203.9 MB in the beginning and 245.4 MB in the end (delta: 41.4 MB). Free memory was 136.7 MB in the beginning and 118.3 MB in the end (delta: 18.4 MB). Peak memory consumption was 59.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 238 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 453 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 43 SDslu, 50 SDs, 0 SdLazy, 39 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...