/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/safe020_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 18:47:27,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 18:47:27,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 18:47:27,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 18:47:27,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 18:47:27,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 18:47:27,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 18:47:27,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 18:47:27,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 18:47:27,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 18:47:27,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 18:47:27,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 18:47:27,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 18:47:27,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 18:47:27,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 18:47:27,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 18:47:27,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 18:47:27,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 18:47:27,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 18:47:27,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 18:47:27,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 18:47:27,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 18:47:27,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 18:47:27,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 18:47:27,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 18:47:27,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 18:47:27,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 18:47:27,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 18:47:27,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 18:47:27,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 18:47:27,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 18:47:27,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 18:47:27,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 18:47:27,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 18:47:27,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 18:47:27,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 18:47:27,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 18:47:27,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 18:47:27,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 18:47:27,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 18:47:27,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 18:47:27,731 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 18:47:27,746 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 18:47:27,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 18:47:27,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 18:47:27,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 18:47:27,748 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 18:47:27,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 18:47:27,748 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 18:47:27,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 18:47:27,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 18:47:27,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 18:47:27,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 18:47:27,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 18:47:27,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 18:47:27,750 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 18:47:27,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 18:47:27,750 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 18:47:27,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 18:47:27,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 18:47:27,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 18:47:27,751 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 18:47:27,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 18:47:27,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 18:47:27,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 18:47:27,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 18:47:27,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 18:47:27,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 18:47:27,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 18:47:27,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 18:47:27,753 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 18:47:28,027 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 18:47:28,042 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 18:47:28,048 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 18:47:28,049 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 18:47:28,050 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 18:47:28,051 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i [2019-12-18 18:47:28,124 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f518ba2fe/2ba68a97aafc4177b0355df81b05a4ea/FLAGaa1276f77 [2019-12-18 18:47:28,615 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 18:47:28,615 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i [2019-12-18 18:47:28,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f518ba2fe/2ba68a97aafc4177b0355df81b05a4ea/FLAGaa1276f77 [2019-12-18 18:47:28,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f518ba2fe/2ba68a97aafc4177b0355df81b05a4ea [2019-12-18 18:47:28,914 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 18:47:28,916 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 18:47:28,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 18:47:28,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 18:47:28,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 18:47:28,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:47:28" (1/1) ... [2019-12-18 18:47:28,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5599d910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:47:28, skipping insertion in model container [2019-12-18 18:47:28,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:47:28" (1/1) ... [2019-12-18 18:47:28,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 18:47:28,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 18:47:29,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:47:29,530 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 18:47:29,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:47:29,663 INFO L208 MainTranslator]: Completed translation [2019-12-18 18:47:29,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:47:29 WrapperNode [2019-12-18 18:47:29,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 18:47:29,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 18:47:29,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 18:47:29,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 18:47:29,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:47:29" (1/1) ... [2019-12-18 18:47:29,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:47:29" (1/1) ... [2019-12-18 18:47:29,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 18:47:29,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 18:47:29,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 18:47:29,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 18:47:29,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:47:29" (1/1) ... [2019-12-18 18:47:29,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:47:29" (1/1) ... [2019-12-18 18:47:29,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:47:29" (1/1) ... [2019-12-18 18:47:29,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:47:29" (1/1) ... [2019-12-18 18:47:29,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:47:29" (1/1) ... [2019-12-18 18:47:29,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:47:29" (1/1) ... [2019-12-18 18:47:29,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:47:29" (1/1) ... [2019-12-18 18:47:29,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 18:47:29,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 18:47:29,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 18:47:29,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 18:47:29,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:47:29" (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 18:47:29,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 18:47:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 18:47:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 18:47:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 18:47:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 18:47:29,825 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 18:47:29,826 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 18:47:29,826 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 18:47:29,826 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 18:47:29,826 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 18:47:29,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 18:47:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 18:47:29,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 18:47:29,829 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 18:47:30,220 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 18:47:30,221 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 18:47:30,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:47:30 BoogieIcfgContainer [2019-12-18 18:47:30,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 18:47:30,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 18:47:30,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 18:47:30,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 18:47:30,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 06:47:28" (1/3) ... [2019-12-18 18:47:30,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a78764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:47:30, skipping insertion in model container [2019-12-18 18:47:30,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:47:29" (2/3) ... [2019-12-18 18:47:30,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a78764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:47:30, skipping insertion in model container [2019-12-18 18:47:30,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:47:30" (3/3) ... [2019-12-18 18:47:30,231 INFO L109 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc.i [2019-12-18 18:47:30,241 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 18:47:30,242 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 18:47:30,250 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 18:47:30,251 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 18:47:30,279 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,280 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,280 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,280 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,281 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,281 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,282 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,282 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,282 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,282 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,283 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,283 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,283 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,284 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,284 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,284 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,284 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,285 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,289 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,289 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,289 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,290 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,295 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,296 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,296 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,297 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,300 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,301 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,301 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,301 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:47:30,316 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 18:47:30,337 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 18:47:30,337 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 18:47:30,337 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 18:47:30,337 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 18:47:30,338 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 18:47:30,338 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 18:47:30,338 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 18:47:30,338 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 18:47:30,352 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-18 18:47:30,355 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 18:47:30,397 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 18:47:30,398 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:47:30,405 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 18:47:30,410 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 18:47:30,427 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 18:47:30,428 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:47:30,430 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 18:47:30,432 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 18:47:30,433 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 18:47:31,910 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-18 18:47:32,054 INFO L206 etLargeBlockEncoding]: Checked pairs total: 479 [2019-12-18 18:47:32,055 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-18 18:47:32,059 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 18:47:32,070 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 18:47:32,072 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 18:47:32,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 18:47:32,079 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:47:32,080 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:47:32,080 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:47:32,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:47:32,086 INFO L82 PathProgramCache]: Analyzing trace with hash 492740166, now seen corresponding path program 1 times [2019-12-18 18:47:32,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:47:32,096 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871763752] [2019-12-18 18:47:32,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:47:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:47:32,335 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 18:47:32,336 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871763752] [2019-12-18 18:47:32,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:47:32,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 18:47:32,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712689900] [2019-12-18 18:47:32,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:47:32,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:47:32,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:47:32,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:47:32,361 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 18:47:32,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:47:32,390 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-18 18:47:32,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:47:32,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 18:47:32,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:47:32,404 INFO L225 Difference]: With dead ends: 44 [2019-12-18 18:47:32,404 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 18:47:32,406 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 18:47:32,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 18:47:32,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-18 18:47:32,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-18 18:47:32,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-18 18:47:32,461 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-18 18:47:32,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:47:32,463 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-18 18:47:32,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:47:32,464 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-18 18:47:32,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 18:47:32,468 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:47:32,468 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:47:32,469 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:47:32,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:47:32,469 INFO L82 PathProgramCache]: Analyzing trace with hash 709143484, now seen corresponding path program 1 times [2019-12-18 18:47:32,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:47:32,470 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659675227] [2019-12-18 18:47:32,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:47:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:47:32,587 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 18:47:32,587 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659675227] [2019-12-18 18:47:32,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:47:32,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 18:47:32,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390222808] [2019-12-18 18:47:32,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:47:32,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:47:32,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:47:32,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:47:32,591 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-18 18:47:32,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:47:32,616 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-18 18:47:32,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:47:32,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 18:47:32,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:47:32,618 INFO L225 Difference]: With dead ends: 34 [2019-12-18 18:47:32,618 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 18:47:32,619 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 18:47:32,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 18:47:32,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 18:47:32,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 18:47:32,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 18:47:32,629 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-18 18:47:32,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:47:32,630 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 18:47:32,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:47:32,630 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 18:47:32,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 18:47:32,631 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:47:32,631 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:47:32,631 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:47:32,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:47:32,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1904869198, now seen corresponding path program 1 times [2019-12-18 18:47:32,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:47:32,632 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487653036] [2019-12-18 18:47:32,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:47:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:47:32,683 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 18:47:32,684 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487653036] [2019-12-18 18:47:32,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:47:32,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:47:32,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209458125] [2019-12-18 18:47:32,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:47:32,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:47:32,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:47:32,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:47:32,686 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-18 18:47:32,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:47:32,698 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 18:47:32,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:47:32,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 18:47:32,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:47:32,699 INFO L225 Difference]: With dead ends: 36 [2019-12-18 18:47:32,699 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 18:47:32,699 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:47:32,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 18:47:32,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 18:47:32,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 18:47:32,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-18 18:47:32,703 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-18 18:47:32,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:47:32,703 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-18 18:47:32,704 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:47:32,704 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-18 18:47:32,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 18:47:32,704 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:47:32,704 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:47:32,705 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:47:32,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:47:32,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1078655690, now seen corresponding path program 1 times [2019-12-18 18:47:32,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:47:32,706 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862891204] [2019-12-18 18:47:32,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:47:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:47:32,784 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 18:47:32,785 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862891204] [2019-12-18 18:47:32,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:47:32,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:47:32,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635432586] [2019-12-18 18:47:32,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:47:32,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:47:32,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:47:32,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:47:32,786 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-18 18:47:32,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:47:32,810 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-18 18:47:32,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:47:32,811 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 18:47:32,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:47:32,811 INFO L225 Difference]: With dead ends: 25 [2019-12-18 18:47:32,811 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 18:47:32,812 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 18:47:32,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 18:47:32,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 18:47:32,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 18:47:32,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 18:47:32,815 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-18 18:47:32,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:47:32,815 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 18:47:32,815 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:47:32,815 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 18:47:32,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 18:47:32,816 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:47:32,816 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:47:32,816 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:47:32,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:47:32,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1824813225, now seen corresponding path program 1 times [2019-12-18 18:47:32,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:47:32,817 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586590014] [2019-12-18 18:47:32,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:47:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:47:32,858 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 18:47:32,858 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586590014] [2019-12-18 18:47:32,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:47:32,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 18:47:32,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325769150] [2019-12-18 18:47:32,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:47:32,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:47:32,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:47:32,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:47:32,860 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-18 18:47:32,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:47:32,887 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 18:47:32,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:47:32,888 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 18:47:32,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:47:32,888 INFO L225 Difference]: With dead ends: 16 [2019-12-18 18:47:32,888 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 18:47:32,889 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 18:47:32,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 18:47:32,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 18:47:32,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 18:47:32,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 18:47:32,890 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 18:47:32,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:47:32,890 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 18:47:32,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:47:32,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 18:47:32,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 18:47:32,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 06:47:32 BasicIcfg [2019-12-18 18:47:32,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 18:47:32,902 INFO L168 Benchmark]: Toolchain (without parser) took 3984.54 ms. Allocated memory was 137.9 MB in the beginning and 246.9 MB in the end (delta: 109.1 MB). Free memory was 101.7 MB in the beginning and 149.2 MB in the end (delta: -47.5 MB). Peak memory consumption was 61.6 MB. Max. memory is 7.1 GB. [2019-12-18 18:47:32,904 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-18 18:47:32,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.96 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 101.3 MB in the beginning and 160.2 MB in the end (delta: -58.9 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2019-12-18 18:47:32,912 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.77 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-18 18:47:32,913 INFO L168 Benchmark]: Boogie Preprocessor took 28.36 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 156.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 18:47:32,914 INFO L168 Benchmark]: RCFGBuilder took 465.70 ms. Allocated memory is still 203.4 MB. Free memory was 156.7 MB in the beginning and 136.4 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-18 18:47:32,914 INFO L168 Benchmark]: TraceAbstraction took 2675.21 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 135.7 MB in the beginning and 149.2 MB in the end (delta: -13.5 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2019-12-18 18:47:32,922 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 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 746.96 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 101.3 MB in the beginning and 160.2 MB in the end (delta: -58.9 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.77 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.36 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 156.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 465.70 ms. Allocated memory is still 203.4 MB. Free memory was 156.7 MB in the beginning and 136.4 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2675.21 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 135.7 MB in the beginning and 149.2 MB in the end (delta: -13.5 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 244 VarBasedMoverChecksPositive, 16 VarBasedMoverChecksNegative, 3 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 479 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 16 SDslu, 38 SDs, 0 SdLazy, 24 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 898 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...