/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 22:41:58,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 22:41:58,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 22:41:58,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 22:41:58,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 22:41:58,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 22:41:58,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 22:41:58,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 22:41:58,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 22:41:58,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 22:41:58,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 22:41:58,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 22:41:58,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 22:41:58,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 22:41:58,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 22:41:58,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 22:41:58,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 22:41:58,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 22:41:58,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 22:41:58,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 22:41:58,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 22:41:58,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 22:41:58,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 22:41:58,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 22:41:58,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 22:41:58,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 22:41:58,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 22:41:58,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 22:41:58,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 22:41:58,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 22:41:58,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 22:41:58,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 22:41:58,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 22:41:58,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 22:41:58,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 22:41:58,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 22:41:58,994 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-VariableLbe.epf [2019-12-18 22:41:59,017 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 22:41:59,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 22:41:59,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 22:41:59,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 22:41:59,021 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 22:41:59,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 22:41:59,021 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 22:41:59,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 22:41:59,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 22:41:59,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 22:41:59,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 22:41:59,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 22:41:59,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 22:41:59,024 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 22:41:59,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 22:41:59,024 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 22:41:59,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 22:41:59,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 22:41:59,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 22:41:59,025 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 22:41:59,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 22:41:59,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 22:41:59,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 22:41:59,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 22:41:59,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 22:41:59,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 22:41:59,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 22:41:59,027 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 22:41:59,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 22:41:59,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 22:41:59,348 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 22:41:59,372 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 22:41:59,376 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 22:41:59,377 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 22:41:59,378 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 22:41:59,379 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i [2019-12-18 22:41:59,446 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4093cb37/b9cce0aa155c4149915670221f5916e9/FLAGd7f892e5f [2019-12-18 22:41:59,916 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 22:41:59,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i [2019-12-18 22:41:59,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4093cb37/b9cce0aa155c4149915670221f5916e9/FLAGd7f892e5f [2019-12-18 22:42:00,267 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4093cb37/b9cce0aa155c4149915670221f5916e9 [2019-12-18 22:42:00,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 22:42:00,278 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 22:42:00,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 22:42:00,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 22:42:00,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 22:42:00,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:42:00" (1/1) ... [2019-12-18 22:42:00,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71dabbfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:00, skipping insertion in model container [2019-12-18 22:42:00,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:42:00" (1/1) ... [2019-12-18 22:42:00,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 22:42:00,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 22:42:00,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:42:00,940 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 22:42:01,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:42:01,091 INFO L208 MainTranslator]: Completed translation [2019-12-18 22:42:01,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:01 WrapperNode [2019-12-18 22:42:01,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 22:42:01,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 22:42:01,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 22:42:01,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 22:42:01,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:01" (1/1) ... [2019-12-18 22:42:01,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:01" (1/1) ... [2019-12-18 22:42:01,142 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 22:42:01,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 22:42:01,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 22:42:01,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 22:42:01,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:01" (1/1) ... [2019-12-18 22:42:01,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:01" (1/1) ... [2019-12-18 22:42:01,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:01" (1/1) ... [2019-12-18 22:42:01,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:01" (1/1) ... [2019-12-18 22:42:01,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:01" (1/1) ... [2019-12-18 22:42:01,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:01" (1/1) ... [2019-12-18 22:42:01,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:01" (1/1) ... [2019-12-18 22:42:01,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 22:42:01,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 22:42:01,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 22:42:01,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 22:42:01,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 22:42:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 22:42:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 22:42:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 22:42:01,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 22:42:01,245 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 22:42:01,245 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 22:42:01,245 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 22:42:01,245 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 22:42:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 22:42:01,246 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 22:42:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 22:42:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 22:42:01,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 22:42:01,248 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 22:42:01,592 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 22:42:01,593 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 22:42:01,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:42:01 BoogieIcfgContainer [2019-12-18 22:42:01,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 22:42:01,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 22:42:01,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 22:42:01,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 22:42:01,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:42:00" (1/3) ... [2019-12-18 22:42:01,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd37f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:42:01, skipping insertion in model container [2019-12-18 22:42:01,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:01" (2/3) ... [2019-12-18 22:42:01,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd37f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:42:01, skipping insertion in model container [2019-12-18 22:42:01,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:42:01" (3/3) ... [2019-12-18 22:42:01,602 INFO L109 eAbstractionObserver]: Analyzing ICFG safe017_tso.oepc.i [2019-12-18 22:42:01,612 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 22:42:01,613 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 22:42:01,619 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 22:42:01,620 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 22:42:01,652 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,653 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,653 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,653 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,654 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,654 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,654 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,655 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,655 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,655 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,655 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,656 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,656 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,656 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,656 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,657 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,657 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,657 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,661 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,661 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,661 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,662 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,667 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,673 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,673 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,673 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,680 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,680 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,680 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,680 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:01,693 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 22:42:01,709 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 22:42:01,709 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 22:42:01,709 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 22:42:01,709 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 22:42:01,710 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 22:42:01,710 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 22:42:01,710 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 22:42:01,710 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 22:42:01,722 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 52 transitions [2019-12-18 22:42:01,724 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 61 places, 52 transitions [2019-12-18 22:42:01,767 INFO L126 PetriNetUnfolder]: 1/49 cut-off events. [2019-12-18 22:42:01,768 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:42:01,775 INFO L76 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/56 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:42:01,780 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 61 places, 52 transitions [2019-12-18 22:42:01,796 INFO L126 PetriNetUnfolder]: 1/49 cut-off events. [2019-12-18 22:42:01,796 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:42:01,798 INFO L76 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/56 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:42:01,800 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 22:42:01,801 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 22:42:03,097 INFO L206 etLargeBlockEncoding]: Checked pairs total: 495 [2019-12-18 22:42:03,097 INFO L214 etLargeBlockEncoding]: Total number of compositions: 42 [2019-12-18 22:42:03,101 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 22:42:03,111 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 22:42:03,113 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 22:42:03,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 22:42:03,120 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:42:03,121 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:42:03,121 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:42:03,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:42:03,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1253178052, now seen corresponding path program 1 times [2019-12-18 22:42:03,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:42:03,133 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119603280] [2019-12-18 22:42:03,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:42:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:42:03,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:42:03,347 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119603280] [2019-12-18 22:42:03,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:42:03,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 22:42:03,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544850397] [2019-12-18 22:42:03,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:42:03,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:42:03,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:42:03,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:42:03,375 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 22:42:03,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:42:03,414 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 22:42:03,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:42:03,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 22:42:03,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:42:03,450 INFO L225 Difference]: With dead ends: 42 [2019-12-18 22:42:03,451 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 22:42:03,452 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:42:03,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 22:42:03,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 22:42:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 22:42:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 22:42:03,490 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 22:42:03,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:42:03,491 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 22:42:03,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:42:03,491 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 22:42:03,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 22:42:03,492 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:42:03,492 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:42:03,493 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:42:03,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:42:03,493 INFO L82 PathProgramCache]: Analyzing trace with hash 193813457, now seen corresponding path program 1 times [2019-12-18 22:42:03,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:42:03,494 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412375603] [2019-12-18 22:42:03,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:42:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:42:03,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:42:03,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412375603] [2019-12-18 22:42:03,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:42:03,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:42:03,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50016914] [2019-12-18 22:42:03,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:42:03,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:42:03,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:42:03,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:42:03,583 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 22:42:03,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:42:03,608 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2019-12-18 22:42:03,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:42:03,608 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 22:42:03,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:42:03,610 INFO L225 Difference]: With dead ends: 39 [2019-12-18 22:42:03,610 INFO L226 Difference]: Without dead ends: 31 [2019-12-18 22:42:03,611 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 22:42:03,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-18 22:42:03,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-18 22:42:03,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-18 22:42:03,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 54 transitions. [2019-12-18 22:42:03,617 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 54 transitions. Word has length 9 [2019-12-18 22:42:03,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:42:03,617 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 54 transitions. [2019-12-18 22:42:03,617 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:42:03,617 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2019-12-18 22:42:03,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 22:42:03,618 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:42:03,618 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:42:03,619 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:42:03,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:42:03,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1741916971, now seen corresponding path program 1 times [2019-12-18 22:42:03,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:42:03,620 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539099514] [2019-12-18 22:42:03,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:42:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:42:03,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:42:03,693 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539099514] [2019-12-18 22:42:03,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:42:03,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:42:03,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124773369] [2019-12-18 22:42:03,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:42:03,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:42:03,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:42:03,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:42:03,695 INFO L87 Difference]: Start difference. First operand 31 states and 54 transitions. Second operand 3 states. [2019-12-18 22:42:03,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:42:03,724 INFO L93 Difference]: Finished difference Result 31 states and 51 transitions. [2019-12-18 22:42:03,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:42:03,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 22:42:03,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:42:03,725 INFO L225 Difference]: With dead ends: 31 [2019-12-18 22:42:03,727 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 22:42:03,727 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:42:03,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 22:42:03,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 22:42:03,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 22:42:03,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 22:42:03,731 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-18 22:42:03,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:42:03,734 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 22:42:03,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:42:03,734 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 22:42:03,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 22:42:03,735 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:42:03,735 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:42:03,735 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:42:03,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:42:03,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1835149176, now seen corresponding path program 1 times [2019-12-18 22:42:03,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:42:03,737 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471419942] [2019-12-18 22:42:03,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:42:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:42:03,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:42:03,828 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471419942] [2019-12-18 22:42:03,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:42:03,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:42:03,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546453580] [2019-12-18 22:42:03,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:42:03,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:42:03,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:42:03,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:42:03,831 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 3 states. [2019-12-18 22:42:03,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:42:03,840 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 22:42:03,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:42:03,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-18 22:42:03,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:42:03,841 INFO L225 Difference]: With dead ends: 16 [2019-12-18 22:42:03,841 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 22:42:03,842 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:42:03,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 22:42:03,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 22:42:03,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 22:42:03,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 22:42:03,843 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 22:42:03,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:42:03,843 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 22:42:03,843 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:42:03,843 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 22:42:03,843 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 22:42:03,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 10:42:03 BasicIcfg [2019-12-18 22:42:03,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 22:42:03,850 INFO L168 Benchmark]: Toolchain (without parser) took 3571.66 ms. Allocated memory was 142.6 MB in the beginning and 252.2 MB in the end (delta: 109.6 MB). Free memory was 99.3 MB in the beginning and 194.7 MB in the end (delta: -95.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-12-18 22:42:03,851 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 142.6 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-18 22:42:03,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 812.88 ms. Allocated memory was 142.6 MB in the beginning and 200.8 MB in the end (delta: 58.2 MB). Free memory was 99.0 MB in the beginning and 155.6 MB in the end (delta: -56.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-18 22:42:03,853 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.19 ms. Allocated memory is still 200.8 MB. Free memory was 155.6 MB in the beginning and 153.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-18 22:42:03,854 INFO L168 Benchmark]: Boogie Preprocessor took 35.98 ms. Allocated memory is still 200.8 MB. Free memory was 153.4 MB in the beginning and 152.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 22:42:03,855 INFO L168 Benchmark]: RCFGBuilder took 415.33 ms. Allocated memory is still 200.8 MB. Free memory was 152.0 MB in the beginning and 131.8 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-18 22:42:03,856 INFO L168 Benchmark]: TraceAbstraction took 2252.28 ms. Allocated memory was 200.8 MB in the beginning and 252.2 MB in the end (delta: 51.4 MB). Free memory was 131.8 MB in the beginning and 194.7 MB in the end (delta: -62.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-18 22:42:03,860 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 142.6 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 812.88 ms. Allocated memory was 142.6 MB in the beginning and 200.8 MB in the end (delta: 58.2 MB). Free memory was 99.0 MB in the beginning and 155.6 MB in the end (delta: -56.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.19 ms. Allocated memory is still 200.8 MB. Free memory was 155.6 MB in the beginning and 153.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.98 ms. Allocated memory is still 200.8 MB. Free memory was 153.4 MB in the beginning and 152.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 415.33 ms. Allocated memory is still 200.8 MB. Free memory was 152.0 MB in the beginning and 131.8 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2252.28 ms. Allocated memory was 200.8 MB in the beginning and 252.2 MB in the end (delta: 51.4 MB). Free memory was 131.8 MB in the beginning and 194.7 MB in the end (delta: -62.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 61 ProgramPointsBefore, 21 ProgramPointsAfterwards, 52 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 238 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 495 CheckedPairsTotal, 42 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, 52 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 21 SDslu, 24 SDs, 0 SdLazy, 18 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 558 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...