/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 15:05:25,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 15:05:25,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 15:05:25,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 15:05:25,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 15:05:25,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 15:05:25,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 15:05:25,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 15:05:25,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 15:05:25,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 15:05:25,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 15:05:25,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 15:05:25,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 15:05:25,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 15:05:25,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 15:05:25,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 15:05:25,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 15:05:25,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 15:05:25,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 15:05:25,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 15:05:25,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 15:05:25,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 15:05:25,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 15:05:25,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 15:05:25,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 15:05:25,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 15:05:25,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 15:05:25,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 15:05:25,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 15:05:25,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 15:05:25,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 15:05:25,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 15:05:25,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 15:05:25,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 15:05:25,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 15:05:25,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 15:05:25,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-18 15:05:25,727 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 15:05:25,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 15:05:25,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 15:05:25,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 15:05:25,729 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 15:05:25,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 15:05:25,729 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 15:05:25,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 15:05:25,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 15:05:25,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 15:05:25,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 15:05:25,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 15:05:25,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 15:05:25,730 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 15:05:25,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 15:05:25,731 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 15:05:25,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 15:05:25,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 15:05:25,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 15:05:25,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 15:05:25,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 15:05:25,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 15:05:25,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 15:05:25,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 15:05:25,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 15:05:25,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 15:05:25,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 15:05:25,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 15:05:25,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 15:05:25,733 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 15:05:26,004 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 15:05:26,018 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 15:05:26,022 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 15:05:26,023 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 15:05:26,024 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 15:05:26,025 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i [2019-12-18 15:05:26,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f5dfdc5f/ac0fd7c290a84d98aab042475d321e98/FLAG7bc08378e [2019-12-18 15:05:26,688 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 15:05:26,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i [2019-12-18 15:05:26,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f5dfdc5f/ac0fd7c290a84d98aab042475d321e98/FLAG7bc08378e [2019-12-18 15:05:26,959 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f5dfdc5f/ac0fd7c290a84d98aab042475d321e98 [2019-12-18 15:05:26,969 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 15:05:26,971 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 15:05:26,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 15:05:26,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 15:05:26,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 15:05:26,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:05:26" (1/1) ... [2019-12-18 15:05:26,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df47e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:05:26, skipping insertion in model container [2019-12-18 15:05:26,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:05:26" (1/1) ... [2019-12-18 15:05:26,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 15:05:27,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 15:05:27,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:05:27,574 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 15:05:27,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:05:27,737 INFO L208 MainTranslator]: Completed translation [2019-12-18 15:05:27,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:05:27 WrapperNode [2019-12-18 15:05:27,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 15:05:27,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 15:05:27,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 15:05:27,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 15:05:27,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:05:27" (1/1) ... [2019-12-18 15:05:27,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:05:27" (1/1) ... [2019-12-18 15:05:27,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 15:05:27,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 15:05:27,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 15:05:27,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 15:05:27,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:05:27" (1/1) ... [2019-12-18 15:05:27,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:05:27" (1/1) ... [2019-12-18 15:05:27,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:05:27" (1/1) ... [2019-12-18 15:05:27,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:05:27" (1/1) ... [2019-12-18 15:05:27,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:05:27" (1/1) ... [2019-12-18 15:05:27,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:05:27" (1/1) ... [2019-12-18 15:05:27,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:05:27" (1/1) ... [2019-12-18 15:05:27,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 15:05:27,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 15:05:27,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 15:05:27,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 15:05:27,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:05:27" (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 15:05:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 15:05:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 15:05:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 15:05:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 15:05:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 15:05:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 15:05:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 15:05:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 15:05:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 15:05:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 15:05:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 15:05:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 15:05:27,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 15:05:27,881 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 15:05:28,268 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 15:05:28,268 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 15:05:28,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:05:28 BoogieIcfgContainer [2019-12-18 15:05:28,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 15:05:28,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 15:05:28,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 15:05:28,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 15:05:28,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:05:26" (1/3) ... [2019-12-18 15:05:28,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@766d57f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:05:28, skipping insertion in model container [2019-12-18 15:05:28,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:05:27" (2/3) ... [2019-12-18 15:05:28,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@766d57f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:05:28, skipping insertion in model container [2019-12-18 15:05:28,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:05:28" (3/3) ... [2019-12-18 15:05:28,279 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_pso.opt.i [2019-12-18 15:05:28,289 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 15:05:28,289 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 15:05:28,297 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 15:05:28,298 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 15:05:28,327 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,328 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,328 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,328 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,329 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,329 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,329 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,330 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,330 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,330 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,330 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,331 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,331 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,331 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,332 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,332 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,332 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,332 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,336 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,337 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,337 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,338 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,343 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,344 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,344 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,344 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,346 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,347 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,347 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,347 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:05:28,368 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 15:05:28,389 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:05:28,389 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:05:28,389 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:05:28,389 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:05:28,390 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:05:28,390 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:05:28,390 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:05:28,390 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:05:28,404 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 15:05:28,406 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 15:05:28,448 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 15:05:28,448 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:05:28,455 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 15:05:28,458 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 15:05:28,475 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 15:05:28,475 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:05:28,477 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 15:05:28,479 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 15:05:28,480 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:05:30,133 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-18 15:05:30,219 INFO L206 etLargeBlockEncoding]: Checked pairs total: 453 [2019-12-18 15:05:30,220 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-18 15:05:30,225 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 15:05:30,238 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 15:05:30,241 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 15:05:30,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 15:05:30,250 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:05:30,252 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:05:30,252 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:05:30,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:05:30,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1890044162, now seen corresponding path program 1 times [2019-12-18 15:05:30,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:05:30,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874068206] [2019-12-18 15:05:30,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:05:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:05:30,534 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 15:05:30,535 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874068206] [2019-12-18 15:05:30,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:05:30,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 15:05:30,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079063810] [2019-12-18 15:05:30,541 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:05:30,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:05:30,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:05:30,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:05:30,555 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 15:05:30,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:05:30,585 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 15:05:30,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:05:30,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 15:05:30,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:05:30,599 INFO L225 Difference]: With dead ends: 42 [2019-12-18 15:05:30,599 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 15:05:30,601 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 15:05:30,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 15:05:30,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 15:05:30,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 15:05:30,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 15:05:30,639 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 15:05:30,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:05:30,641 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 15:05:30,641 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:05:30,641 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 15:05:30,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 15:05:30,642 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:05:30,642 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:05:30,642 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:05:30,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:05:30,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1538098686, now seen corresponding path program 1 times [2019-12-18 15:05:30,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:05:30,643 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105930604] [2019-12-18 15:05:30,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:05:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:05:30,771 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 15:05:30,771 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105930604] [2019-12-18 15:05:30,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:05:30,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:05:30,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481818728] [2019-12-18 15:05:30,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 15:05:30,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:05:30,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 15:05:30,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:05:30,775 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 15:05:30,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:05:30,806 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 15:05:30,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:05:30,807 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 15:05:30,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:05:30,808 INFO L225 Difference]: With dead ends: 36 [2019-12-18 15:05:30,808 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 15:05:30,809 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 15:05:30,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 15:05:30,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 15:05:30,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 15:05:30,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-18 15:05:30,814 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-18 15:05:30,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:05:30,814 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-18 15:05:30,814 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 15:05:30,815 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-18 15:05:30,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 15:05:30,815 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:05:30,815 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:05:30,816 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:05:30,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:05:30,816 INFO L82 PathProgramCache]: Analyzing trace with hash -548239570, now seen corresponding path program 1 times [2019-12-18 15:05:30,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:05:30,817 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970089474] [2019-12-18 15:05:30,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:05:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:05:30,934 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 15:05:30,935 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970089474] [2019-12-18 15:05:30,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:05:30,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 15:05:30,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338413069] [2019-12-18 15:05:30,936 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 15:05:30,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:05:30,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 15:05:30,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-18 15:05:30,937 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 6 states. [2019-12-18 15:05:31,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:05:31,010 INFO L93 Difference]: Finished difference Result 28 states and 45 transitions. [2019-12-18 15:05:31,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 15:05:31,011 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-18 15:05:31,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:05:31,012 INFO L225 Difference]: With dead ends: 28 [2019-12-18 15:05:31,012 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 15:05:31,012 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 15:05:31,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 15:05:31,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 15:05:31,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 15:05:31,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-18 15:05:31,016 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 10 [2019-12-18 15:05:31,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:05:31,017 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-18 15:05:31,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 15:05:31,017 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-18 15:05:31,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 15:05:31,018 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:05:31,018 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:05:31,018 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:05:31,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:05:31,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1277925028, now seen corresponding path program 1 times [2019-12-18 15:05:31,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:05:31,019 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57641514] [2019-12-18 15:05:31,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:05:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:05:31,087 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 15:05:31,088 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57641514] [2019-12-18 15:05:31,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:05:31,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:05:31,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009831943] [2019-12-18 15:05:31,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 15:05:31,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:05:31,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 15:05:31,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:05:31,090 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-18 15:05:31,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:05:31,106 INFO L93 Difference]: Finished difference Result 24 states and 34 transitions. [2019-12-18 15:05:31,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:05:31,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 15:05:31,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:05:31,107 INFO L225 Difference]: With dead ends: 24 [2019-12-18 15:05:31,107 INFO L226 Difference]: Without dead ends: 14 [2019-12-18 15:05:31,107 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 15:05:31,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-18 15:05:31,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-18 15:05:31,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-18 15:05:31,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-18 15:05:31,110 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2019-12-18 15:05:31,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:05:31,110 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-18 15:05:31,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 15:05:31,111 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-18 15:05:31,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 15:05:31,111 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:05:31,111 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:05:31,112 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:05:31,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:05:31,112 INFO L82 PathProgramCache]: Analyzing trace with hash 184515028, now seen corresponding path program 2 times [2019-12-18 15:05:31,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:05:31,112 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321829745] [2019-12-18 15:05:31,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:05:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:05:31,151 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 15:05:31,151 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321829745] [2019-12-18 15:05:31,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:05:31,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:05:31,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651759392] [2019-12-18 15:05:31,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 15:05:31,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:05:31,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 15:05:31,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:05:31,153 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 4 states. [2019-12-18 15:05:31,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:05:31,167 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-18 15:05:31,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:05:31,167 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 15:05:31,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:05:31,168 INFO L225 Difference]: With dead ends: 13 [2019-12-18 15:05:31,168 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 15:05:31,168 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 15:05:31,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 15:05:31,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 15:05:31,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 15:05:31,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 15:05:31,169 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 15:05:31,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:05:31,169 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 15:05:31,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 15:05:31,170 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 15:05:31,170 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 15:05:31,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 03:05:31 BasicIcfg [2019-12-18 15:05:31,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 15:05:31,176 INFO L168 Benchmark]: Toolchain (without parser) took 4205.40 ms. Allocated memory was 138.4 MB in the beginning and 248.5 MB in the end (delta: 110.1 MB). Free memory was 101.7 MB in the beginning and 122.3 MB in the end (delta: -20.6 MB). Peak memory consumption was 89.5 MB. Max. memory is 7.1 GB. [2019-12-18 15:05:31,177 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-18 15:05:31,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 765.43 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.5 MB in the beginning and 158.1 MB in the end (delta: -56.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2019-12-18 15:05:31,179 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.58 ms. Allocated memory is still 202.9 MB. Free memory was 158.1 MB in the beginning and 155.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-12-18 15:05:31,180 INFO L168 Benchmark]: Boogie Preprocessor took 31.13 ms. Allocated memory is still 202.9 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 15:05:31,181 INFO L168 Benchmark]: RCFGBuilder took 447.73 ms. Allocated memory is still 202.9 MB. Free memory was 154.5 MB in the beginning and 133.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-12-18 15:05:31,182 INFO L168 Benchmark]: TraceAbstraction took 2903.08 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 133.5 MB in the beginning and 122.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 56.9 MB. Max. memory is 7.1 GB. [2019-12-18 15:05:31,186 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 765.43 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.5 MB in the beginning and 158.1 MB in the end (delta: -56.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.58 ms. Allocated memory is still 202.9 MB. Free memory was 158.1 MB in the beginning and 155.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.13 ms. Allocated memory is still 202.9 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 447.73 ms. Allocated memory is still 202.9 MB. Free memory was 154.5 MB in the beginning and 133.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2903.08 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 133.5 MB in the beginning and 122.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 56.9 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: 2.7s, 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...