/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/safe009_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-26 23:40:15,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 23:40:15,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 23:40:15,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 23:40:15,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 23:40:15,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 23:40:15,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 23:40:15,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 23:40:15,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 23:40:15,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 23:40:15,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 23:40:15,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 23:40:15,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 23:40:15,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 23:40:15,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 23:40:15,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 23:40:15,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 23:40:15,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 23:40:15,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 23:40:15,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 23:40:15,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 23:40:15,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 23:40:15,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 23:40:15,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 23:40:15,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-26 23:40:15,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 23:40:15,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 23:40:15,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 23:40:15,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 23:40:15,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 23:40:15,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 23:40:15,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 23:40:15,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 23:40:15,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 23:40:15,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 23:40:15,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 23:40:15,678 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 [2019-12-26 23:40:15,702 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 23:40:15,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 23:40:15,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 23:40:15,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 23:40:15,705 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 23:40:15,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 23:40:15,705 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 23:40:15,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 23:40:15,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 23:40:15,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 23:40:15,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 23:40:15,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 23:40:15,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 23:40:15,708 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 23:40:15,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 23:40:15,708 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 23:40:15,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 23:40:15,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 23:40:15,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 23:40:15,709 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 23:40:15,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 23:40:15,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 23:40:15,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 23:40:15,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 23:40:15,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 23:40:15,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 23:40:15,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 23:40:15,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 23:40:15,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 23:40:15,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 23:40:16,071 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 23:40:16,085 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 23:40:16,090 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 23:40:16,091 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 23:40:16,092 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 23:40:16,093 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2019-12-26 23:40:16,156 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01d3cd4b/7d68510af08347048a6903ee93ed00ed/FLAG170f0d65e [2019-12-26 23:40:16,650 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 23:40:16,651 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2019-12-26 23:40:16,668 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01d3cd4b/7d68510af08347048a6903ee93ed00ed/FLAG170f0d65e [2019-12-26 23:40:16,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01d3cd4b/7d68510af08347048a6903ee93ed00ed [2019-12-26 23:40:16,989 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 23:40:16,990 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 23:40:16,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 23:40:16,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 23:40:16,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 23:40:16,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:40:16" (1/1) ... [2019-12-26 23:40:17,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@236dcfc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:16, skipping insertion in model container [2019-12-26 23:40:17,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:40:16" (1/1) ... [2019-12-26 23:40:17,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 23:40:17,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 23:40:17,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:40:17,656 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 23:40:17,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:40:17,833 INFO L208 MainTranslator]: Completed translation [2019-12-26 23:40:17,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:17 WrapperNode [2019-12-26 23:40:17,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 23:40:17,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 23:40:17,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 23:40:17,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 23:40:17,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:17" (1/1) ... [2019-12-26 23:40:17,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:17" (1/1) ... [2019-12-26 23:40:17,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 23:40:17,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 23:40:17,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 23:40:17,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 23:40:17,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:17" (1/1) ... [2019-12-26 23:40:17,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:17" (1/1) ... [2019-12-26 23:40:17,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:17" (1/1) ... [2019-12-26 23:40:17,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:17" (1/1) ... [2019-12-26 23:40:17,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:17" (1/1) ... [2019-12-26 23:40:17,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:17" (1/1) ... [2019-12-26 23:40:17,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:17" (1/1) ... [2019-12-26 23:40:17,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 23:40:17,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 23:40:17,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 23:40:17,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 23:40:17,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:17" (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 [2019-12-26 23:40:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 23:40:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-26 23:40:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 23:40:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 23:40:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-26 23:40:17,972 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-26 23:40:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-26 23:40:17,972 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-26 23:40:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-26 23:40:17,973 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-26 23:40:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-26 23:40:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 23:40:17,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 23:40:17,975 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 23:40:18,336 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 23:40:18,337 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-26 23:40:18,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:40:18 BoogieIcfgContainer [2019-12-26 23:40:18,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 23:40:18,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 23:40:18,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 23:40:18,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 23:40:18,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 11:40:16" (1/3) ... [2019-12-26 23:40:18,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42bf5896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:40:18, skipping insertion in model container [2019-12-26 23:40:18,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:17" (2/3) ... [2019-12-26 23:40:18,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42bf5896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:40:18, skipping insertion in model container [2019-12-26 23:40:18,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:40:18" (3/3) ... [2019-12-26 23:40:18,347 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_pso.opt.i [2019-12-26 23:40:18,357 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 23:40:18,358 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 23:40:18,364 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-26 23:40:18,365 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 23:40:18,395 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,396 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,396 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,396 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,397 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,397 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,398 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,398 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,398 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,398 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,399 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,399 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,399 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,400 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,400 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,400 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,401 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,401 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,405 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,405 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,406 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,406 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,417 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,418 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,418 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,419 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,421 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,422 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,422 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,422 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:18,435 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-26 23:40:18,451 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 23:40:18,452 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 23:40:18,452 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 23:40:18,452 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 23:40:18,452 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 23:40:18,452 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 23:40:18,453 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 23:40:18,453 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 23:40:18,466 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-26 23:40:18,468 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-26 23:40:18,512 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-26 23:40:18,513 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:40:18,526 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 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:40:18,529 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-26 23:40:18,552 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-26 23:40:18,552 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:40:18,553 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 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:40:18,555 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-26 23:40:18,557 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 23:40:20,045 INFO L206 etLargeBlockEncoding]: Checked pairs total: 444 [2019-12-26 23:40:20,045 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-26 23:40:20,049 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-26 23:40:20,059 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-26 23:40:20,062 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-26 23:40:20,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-26 23:40:20,068 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:40:20,069 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:40:20,070 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:40:20,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:40:20,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1049428584, now seen corresponding path program 1 times [2019-12-26 23:40:20,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:40:20,086 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775252395] [2019-12-26 23:40:20,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:40:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:40:20,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:40:20,298 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775252395] [2019-12-26 23:40:20,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:40:20,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:40:20,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766430193] [2019-12-26 23:40:20,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:40:20,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:40:20,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:40:20,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:40:20,328 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-26 23:40:20,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:40:20,379 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-26 23:40:20,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:40:20,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-26 23:40:20,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:40:20,410 INFO L225 Difference]: With dead ends: 44 [2019-12-26 23:40:20,412 INFO L226 Difference]: Without dead ends: 36 [2019-12-26 23:40:20,416 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 [2019-12-26 23:40:20,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-26 23:40:20,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-26 23:40:20,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-26 23:40:20,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-26 23:40:20,466 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-26 23:40:20,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:40:20,468 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-26 23:40:20,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:40:20,468 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-26 23:40:20,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-26 23:40:20,470 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:40:20,470 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:40:20,471 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:40:20,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:40:20,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1827452116, now seen corresponding path program 1 times [2019-12-26 23:40:20,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:40:20,472 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670869909] [2019-12-26 23:40:20,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:40:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:40:20,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:40:20,613 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670869909] [2019-12-26 23:40:20,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:40:20,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:40:20,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126812790] [2019-12-26 23:40:20,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:40:20,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:40:20,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:40:20,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:40:20,617 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-26 23:40:20,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:40:20,623 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-26 23:40:20,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:40:20,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-26 23:40:20,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:40:20,625 INFO L225 Difference]: With dead ends: 34 [2019-12-26 23:40:20,625 INFO L226 Difference]: Without dead ends: 34 [2019-12-26 23:40:20,626 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 [2019-12-26 23:40:20,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-26 23:40:20,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-26 23:40:20,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-26 23:40:20,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-26 23:40:20,632 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-26 23:40:20,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:40:20,633 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-26 23:40:20,633 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:40:20,633 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-26 23:40:20,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-26 23:40:20,634 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:40:20,634 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:40:20,634 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:40:20,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:40:20,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1827452178, now seen corresponding path program 1 times [2019-12-26 23:40:20,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:40:20,635 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946066273] [2019-12-26 23:40:20,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:40:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:40:20,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:40:20,697 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946066273] [2019-12-26 23:40:20,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:40:20,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:40:20,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410705416] [2019-12-26 23:40:20,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:40:20,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:40:20,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:40:20,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:40:20,699 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-26 23:40:20,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:40:20,716 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-26 23:40:20,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:40:20,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-26 23:40:20,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:40:20,717 INFO L225 Difference]: With dead ends: 36 [2019-12-26 23:40:20,717 INFO L226 Difference]: Without dead ends: 28 [2019-12-26 23:40:20,718 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 [2019-12-26 23:40:20,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-26 23:40:20,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-26 23:40:20,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-26 23:40:20,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-26 23:40:20,722 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-26 23:40:20,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:40:20,723 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-26 23:40:20,723 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:40:20,723 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-26 23:40:20,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 23:40:20,724 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:40:20,724 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:40:20,724 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:40:20,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:40:20,725 INFO L82 PathProgramCache]: Analyzing trace with hash 816442522, now seen corresponding path program 1 times [2019-12-26 23:40:20,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:40:20,725 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034778289] [2019-12-26 23:40:20,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:40:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:40:20,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:40:20,790 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034778289] [2019-12-26 23:40:20,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:40:20,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:40:20,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849394727] [2019-12-26 23:40:20,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:40:20,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:40:20,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:40:20,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:40:20,795 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 4 states. [2019-12-26 23:40:20,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:40:20,826 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2019-12-26 23:40:20,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:40:20,826 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-26 23:40:20,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:40:20,827 INFO L225 Difference]: With dead ends: 33 [2019-12-26 23:40:20,827 INFO L226 Difference]: Without dead ends: 21 [2019-12-26 23:40:20,828 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 [2019-12-26 23:40:20,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-26 23:40:20,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-26 23:40:20,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-26 23:40:20,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2019-12-26 23:40:20,832 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 10 [2019-12-26 23:40:20,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:40:20,832 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2019-12-26 23:40:20,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:40:20,834 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2019-12-26 23:40:20,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 23:40:20,835 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:40:20,835 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:40:20,836 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:40:20,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:40:20,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1244284059, now seen corresponding path program 1 times [2019-12-26 23:40:20,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:40:20,837 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870642447] [2019-12-26 23:40:20,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:40:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:40:20,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:40:20,882 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870642447] [2019-12-26 23:40:20,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:40:20,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:40:20,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272257401] [2019-12-26 23:40:20,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:40:20,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:40:20,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:40:20,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:40:20,884 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand 4 states. [2019-12-26 23:40:20,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:40:20,898 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2019-12-26 23:40:20,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:40:20,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-26 23:40:20,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:40:20,899 INFO L225 Difference]: With dead ends: 20 [2019-12-26 23:40:20,899 INFO L226 Difference]: Without dead ends: 0 [2019-12-26 23:40:20,900 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 [2019-12-26 23:40:20,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-26 23:40:20,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-26 23:40:20,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-26 23:40:20,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-26 23:40:20,901 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-26 23:40:20,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:40:20,901 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-26 23:40:20,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:40:20,901 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-26 23:40:20,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-26 23:40:20,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 11:40:20 BasicIcfg [2019-12-26 23:40:20,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 23:40:20,909 INFO L168 Benchmark]: Toolchain (without parser) took 3917.51 ms. Allocated memory was 144.7 MB in the beginning and 247.5 MB in the end (delta: 102.8 MB). Free memory was 100.9 MB in the beginning and 159.1 MB in the end (delta: -58.1 MB). Peak memory consumption was 44.6 MB. Max. memory is 7.1 GB. [2019-12-26 23:40:20,910 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-26 23:40:20,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 842.98 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 100.7 MB in the beginning and 159.0 MB in the end (delta: -58.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-26 23:40:20,912 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.64 ms. Allocated memory is still 201.9 MB. Free memory was 158.3 MB in the beginning and 156.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-26 23:40:20,912 INFO L168 Benchmark]: Boogie Preprocessor took 25.73 ms. Allocated memory is still 201.9 MB. Free memory was 156.3 MB in the beginning and 154.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-26 23:40:20,913 INFO L168 Benchmark]: RCFGBuilder took 426.30 ms. Allocated memory is still 201.9 MB. Free memory was 154.9 MB in the beginning and 134.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-26 23:40:20,914 INFO L168 Benchmark]: TraceAbstraction took 2566.58 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 134.4 MB in the beginning and 159.1 MB in the end (delta: -24.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-12-26 23:40:20,919 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 842.98 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 100.7 MB in the beginning and 159.0 MB in the end (delta: -58.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.64 ms. Allocated memory is still 201.9 MB. Free memory was 158.3 MB in the beginning and 156.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.73 ms. Allocated memory is still 201.9 MB. Free memory was 156.3 MB in the beginning and 154.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 426.30 ms. Allocated memory is still 201.9 MB. Free memory was 154.9 MB in the beginning and 134.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2566.58 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 134.4 MB in the beginning and 159.1 MB in the end (delta: -24.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 219 VarBasedMoverChecksPositive, 16 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 444 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: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 26 SDslu, 29 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 1 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, 962 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...