/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 04:09:16,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 04:09:16,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 04:09:16,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 04:09:16,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 04:09:16,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 04:09:16,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 04:09:16,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 04:09:16,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 04:09:17,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 04:09:17,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 04:09:17,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 04:09:17,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 04:09:17,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 04:09:17,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 04:09:17,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 04:09:17,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 04:09:17,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 04:09:17,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 04:09:17,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 04:09:17,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 04:09:17,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 04:09:17,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 04:09:17,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 04:09:17,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 04:09:17,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 04:09:17,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 04:09:17,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 04:09:17,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 04:09:17,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 04:09:17,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 04:09:17,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 04:09:17,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 04:09:17,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 04:09:17,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 04:09:17,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 04:09:17,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 04:09:17,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 04:09:17,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 04:09:17,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 04:09:17,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 04:09:17,039 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-27 04:09:17,053 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 04:09:17,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 04:09:17,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 04:09:17,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 04:09:17,055 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 04:09:17,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 04:09:17,055 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 04:09:17,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 04:09:17,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 04:09:17,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 04:09:17,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 04:09:17,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 04:09:17,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 04:09:17,057 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 04:09:17,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 04:09:17,057 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 04:09:17,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 04:09:17,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 04:09:17,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 04:09:17,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 04:09:17,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 04:09:17,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 04:09:17,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 04:09:17,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 04:09:17,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 04:09:17,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 04:09:17,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 04:09:17,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 04:09:17,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 04:09:17,357 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 04:09:17,369 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 04:09:17,373 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 04:09:17,374 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 04:09:17,375 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 04:09:17,376 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.opt.i [2019-12-27 04:09:17,432 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e086e5004/60cc5e0c45da4b7fbf6c0ba768eef5d0/FLAG0218d25f8 [2019-12-27 04:09:17,946 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 04:09:17,947 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_tso.opt.i [2019-12-27 04:09:17,977 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e086e5004/60cc5e0c45da4b7fbf6c0ba768eef5d0/FLAG0218d25f8 [2019-12-27 04:09:18,261 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e086e5004/60cc5e0c45da4b7fbf6c0ba768eef5d0 [2019-12-27 04:09:18,269 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 04:09:18,271 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 04:09:18,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 04:09:18,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 04:09:18,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 04:09:18,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:09:18" (1/1) ... [2019-12-27 04:09:18,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c11641a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:09:18, skipping insertion in model container [2019-12-27 04:09:18,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:09:18" (1/1) ... [2019-12-27 04:09:18,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 04:09:18,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 04:09:18,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:09:18,872 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 04:09:18,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:09:19,018 INFO L208 MainTranslator]: Completed translation [2019-12-27 04:09:19,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:09:19 WrapperNode [2019-12-27 04:09:19,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 04:09:19,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 04:09:19,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 04:09:19,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 04:09:19,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:09:19" (1/1) ... [2019-12-27 04:09:19,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:09:19" (1/1) ... [2019-12-27 04:09:19,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 04:09:19,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 04:09:19,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 04:09:19,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 04:09:19,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:09:19" (1/1) ... [2019-12-27 04:09:19,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:09:19" (1/1) ... [2019-12-27 04:09:19,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:09:19" (1/1) ... [2019-12-27 04:09:19,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:09:19" (1/1) ... [2019-12-27 04:09:19,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:09:19" (1/1) ... [2019-12-27 04:09:19,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:09:19" (1/1) ... [2019-12-27 04:09:19,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:09:19" (1/1) ... [2019-12-27 04:09:19,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 04:09:19,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 04:09:19,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 04:09:19,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 04:09:19,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:09:19" (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 [2019-12-27 04:09:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 04:09:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 04:09:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 04:09:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 04:09:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 04:09:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 04:09:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 04:09:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 04:09:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 04:09:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 04:09:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 04:09:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 04:09:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 04:09:19,174 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 04:09:19,550 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 04:09:19,550 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 04:09:19,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:09:19 BoogieIcfgContainer [2019-12-27 04:09:19,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 04:09:19,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 04:09:19,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 04:09:19,556 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 04:09:19,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 04:09:18" (1/3) ... [2019-12-27 04:09:19,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46cd682b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:09:19, skipping insertion in model container [2019-12-27 04:09:19,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:09:19" (2/3) ... [2019-12-27 04:09:19,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46cd682b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:09:19, skipping insertion in model container [2019-12-27 04:09:19,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:09:19" (3/3) ... [2019-12-27 04:09:19,560 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_tso.opt.i [2019-12-27 04:09:19,570 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 04:09:19,571 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 04:09:19,578 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 04:09:19,579 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 04:09:19,604 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,605 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,605 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,605 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,606 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,606 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,606 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,607 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,607 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,607 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,608 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,608 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,609 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,609 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,609 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,609 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,610 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,610 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,614 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,614 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,614 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,615 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,620 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,621 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,621 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,621 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,623 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,624 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,624 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,624 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:09:19,639 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 04:09:19,658 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:09:19,658 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:09:19,658 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:09:19,658 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:09:19,659 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:09:19,659 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:09:19,659 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:09:19,659 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:09:19,671 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 04:09:19,673 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 04:09:19,714 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 04:09:19,714 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 04:09:19,721 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. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 04:09:19,723 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 04:09:19,751 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 04:09:19,751 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 04:09:19,753 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. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 04:09:19,756 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 04:09:19,757 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 04:09:21,342 INFO L206 etLargeBlockEncoding]: Checked pairs total: 453 [2019-12-27 04:09:21,342 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 04:09:21,347 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 04:09:21,360 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 04:09:21,364 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 04:09:21,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 04:09:21,373 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:09:21,374 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:09:21,374 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:09:21,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:09:21,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1890044162, now seen corresponding path program 1 times [2019-12-27 04:09:21,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:09:21,397 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582978287] [2019-12-27 04:09:21,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:09:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:09:21,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:09:21,693 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582978287] [2019-12-27 04:09:21,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:09:21,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 04:09:21,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500461781] [2019-12-27 04:09:21,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:09:21,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:09:21,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:09:21,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:09:21,720 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 04:09:21,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:09:21,756 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 04:09:21,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:09:21,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 04:09:21,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:09:21,770 INFO L225 Difference]: With dead ends: 42 [2019-12-27 04:09:21,770 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 04:09:21,771 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 [2019-12-27 04:09:21,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 04:09:21,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 04:09:21,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 04:09:21,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 04:09:21,809 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 04:09:21,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:09:21,810 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 04:09:21,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:09:21,810 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 04:09:21,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 04:09:21,811 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:09:21,811 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:09:21,811 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:09:21,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:09:21,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1538098686, now seen corresponding path program 1 times [2019-12-27 04:09:21,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:09:21,812 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474738731] [2019-12-27 04:09:21,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:09:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:09:21,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:09:21,898 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474738731] [2019-12-27 04:09:21,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:09:21,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 04:09:21,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574230833] [2019-12-27 04:09:21,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 04:09:21,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:09:21,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 04:09:21,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 04:09:21,902 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 04:09:21,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:09:21,939 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 04:09:21,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 04:09:21,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 04:09:21,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:09:21,941 INFO L225 Difference]: With dead ends: 36 [2019-12-27 04:09:21,941 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 04:09:21,942 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 [2019-12-27 04:09:21,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 04:09:21,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 04:09:21,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 04:09:21,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-27 04:09:21,947 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-27 04:09:21,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:09:21,947 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-27 04:09:21,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 04:09:21,948 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-27 04:09:21,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 04:09:21,948 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:09:21,948 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:09:21,949 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:09:21,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:09:21,949 INFO L82 PathProgramCache]: Analyzing trace with hash -548239570, now seen corresponding path program 1 times [2019-12-27 04:09:21,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:09:21,950 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639646234] [2019-12-27 04:09:21,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:09:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:09:22,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:09:22,060 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639646234] [2019-12-27 04:09:22,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:09:22,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 04:09:22,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512927491] [2019-12-27 04:09:22,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 04:09:22,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:09:22,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 04:09:22,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 04:09:22,062 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 6 states. [2019-12-27 04:09:22,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:09:22,190 INFO L93 Difference]: Finished difference Result 28 states and 45 transitions. [2019-12-27 04:09:22,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 04:09:22,191 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 04:09:22,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:09:22,192 INFO L225 Difference]: With dead ends: 28 [2019-12-27 04:09:22,192 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 04:09:22,192 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 04:09:22,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 04:09:22,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 04:09:22,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 04:09:22,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-27 04:09:22,200 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 10 [2019-12-27 04:09:22,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:09:22,200 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-27 04:09:22,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 04:09:22,200 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-27 04:09:22,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:09:22,206 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:09:22,206 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:09:22,207 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:09:22,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:09:22,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1277925028, now seen corresponding path program 1 times [2019-12-27 04:09:22,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:09:22,208 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296910306] [2019-12-27 04:09:22,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:09:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:09:22,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:09:22,285 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296910306] [2019-12-27 04:09:22,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:09:22,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:09:22,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934316221] [2019-12-27 04:09:22,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 04:09:22,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:09:22,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 04:09:22,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 04:09:22,287 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-27 04:09:22,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:09:22,311 INFO L93 Difference]: Finished difference Result 24 states and 34 transitions. [2019-12-27 04:09:22,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 04:09:22,312 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 04:09:22,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:09:22,312 INFO L225 Difference]: With dead ends: 24 [2019-12-27 04:09:22,313 INFO L226 Difference]: Without dead ends: 14 [2019-12-27 04:09:22,313 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 [2019-12-27 04:09:22,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-27 04:09:22,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-27 04:09:22,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-27 04:09:22,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-27 04:09:22,318 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2019-12-27 04:09:22,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:09:22,318 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-27 04:09:22,318 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 04:09:22,318 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-27 04:09:22,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:09:22,320 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:09:22,321 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:09:22,321 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:09:22,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:09:22,321 INFO L82 PathProgramCache]: Analyzing trace with hash 184515028, now seen corresponding path program 2 times [2019-12-27 04:09:22,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:09:22,322 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482631641] [2019-12-27 04:09:22,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:09:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:09:22,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:09:22,388 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482631641] [2019-12-27 04:09:22,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:09:22,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:09:22,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799465154] [2019-12-27 04:09:22,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 04:09:22,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:09:22,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 04:09:22,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 04:09:22,390 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 4 states. [2019-12-27 04:09:22,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:09:22,404 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-27 04:09:22,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 04:09:22,404 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 04:09:22,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:09:22,405 INFO L225 Difference]: With dead ends: 13 [2019-12-27 04:09:22,405 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 04:09:22,405 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 [2019-12-27 04:09:22,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 04:09:22,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 04:09:22,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 04:09:22,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 04:09:22,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 04:09:22,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:09:22,407 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 04:09:22,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 04:09:22,407 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 04:09:22,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 04:09:22,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 04:09:22 BasicIcfg [2019-12-27 04:09:22,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 04:09:22,414 INFO L168 Benchmark]: Toolchain (without parser) took 4143.10 ms. Allocated memory was 146.3 MB in the beginning and 245.9 MB in the end (delta: 99.6 MB). Free memory was 102.7 MB in the beginning and 113.5 MB in the end (delta: -10.8 MB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB. [2019-12-27 04:09:22,415 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 04:09:22,416 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.24 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.5 MB in the beginning and 159.3 MB in the end (delta: -56.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-27 04:09:22,417 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.92 ms. Allocated memory is still 203.9 MB. Free memory was 159.3 MB in the beginning and 156.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-27 04:09:22,418 INFO L168 Benchmark]: Boogie Preprocessor took 28.86 ms. Allocated memory is still 203.9 MB. Free memory was 156.6 MB in the beginning and 155.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 04:09:22,419 INFO L168 Benchmark]: RCFGBuilder took 442.74 ms. Allocated memory is still 203.9 MB. Free memory was 155.3 MB in the beginning and 135.0 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-27 04:09:22,420 INFO L168 Benchmark]: TraceAbstraction took 2858.87 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 134.4 MB in the beginning and 113.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 62.8 MB. Max. memory is 7.1 GB. [2019-12-27 04:09:22,429 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 747.24 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.5 MB in the beginning and 159.3 MB in the end (delta: -56.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.92 ms. Allocated memory is still 203.9 MB. Free memory was 159.3 MB in the beginning and 156.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.86 ms. Allocated memory is still 203.9 MB. Free memory was 156.6 MB in the beginning and 155.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 442.74 ms. Allocated memory is still 203.9 MB. Free memory was 155.3 MB in the beginning and 135.0 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2858.87 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 134.4 MB in the beginning and 113.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 62.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 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...