/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-26 23:46:22,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 23:46:22,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 23:46:22,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 23:46:22,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 23:46:22,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 23:46:22,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 23:46:22,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 23:46:22,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 23:46:22,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 23:46:22,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 23:46:22,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 23:46:22,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 23:46:22,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 23:46:22,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 23:46:22,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 23:46:22,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 23:46:22,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 23:46:22,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 23:46:22,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 23:46:22,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 23:46:22,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 23:46:22,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 23:46:22,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 23:46:22,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-26 23:46:22,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 23:46:22,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 23:46:22,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 23:46:22,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 23:46:22,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 23:46:22,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 23:46:22,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 23:46:22,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 23:46:22,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 23:46:22,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 23:46:22,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 23:46:22,228 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-26 23:46:22,242 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 23:46:22,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 23:46:22,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 23:46:22,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 23:46:22,244 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 23:46:22,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 23:46:22,244 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 23:46:22,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 23:46:22,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 23:46:22,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 23:46:22,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 23:46:22,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 23:46:22,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 23:46:22,246 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 23:46:22,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 23:46:22,246 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 23:46:22,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 23:46:22,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 23:46:22,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 23:46:22,247 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 23:46:22,247 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 23:46:22,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 23:46:22,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 23:46:22,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 23:46:22,248 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 23:46:22,248 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 23:46:22,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 23:46:22,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 23:46:22,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 23:46:22,249 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 23:46:22,520 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 23:46:22,542 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 23:46:22,545 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 23:46:22,546 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 23:46:22,546 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 23:46:22,547 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2019-12-26 23:46:22,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98fac11da/5e56f76fdb874fb097f0a626c7615f30/FLAGc34396072 [2019-12-26 23:46:23,206 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 23:46:23,206 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2019-12-26 23:46:23,220 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98fac11da/5e56f76fdb874fb097f0a626c7615f30/FLAGc34396072 [2019-12-26 23:46:23,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98fac11da/5e56f76fdb874fb097f0a626c7615f30 [2019-12-26 23:46:23,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 23:46:23,509 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 23:46:23,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 23:46:23,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 23:46:23,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 23:46:23,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:46:23" (1/1) ... [2019-12-26 23:46:23,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a8ef2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:23, skipping insertion in model container [2019-12-26 23:46:23,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:46:23" (1/1) ... [2019-12-26 23:46:23,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 23:46:23,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 23:46:24,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:46:24,130 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 23:46:24,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:46:24,314 INFO L208 MainTranslator]: Completed translation [2019-12-26 23:46:24,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:24 WrapperNode [2019-12-26 23:46:24,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 23:46:24,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 23:46:24,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 23:46:24,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 23:46:24,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:24" (1/1) ... [2019-12-26 23:46:24,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:24" (1/1) ... [2019-12-26 23:46:24,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 23:46:24,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 23:46:24,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 23:46:24,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 23:46:24,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:24" (1/1) ... [2019-12-26 23:46:24,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:24" (1/1) ... [2019-12-26 23:46:24,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:24" (1/1) ... [2019-12-26 23:46:24,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:24" (1/1) ... [2019-12-26 23:46:24,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:24" (1/1) ... [2019-12-26 23:46:24,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:24" (1/1) ... [2019-12-26 23:46:24,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:24" (1/1) ... [2019-12-26 23:46:24,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 23:46:24,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 23:46:24,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 23:46:24,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 23:46:24,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 23:46:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 23:46:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-26 23:46:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 23:46:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 23:46:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-26 23:46:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-26 23:46:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-26 23:46:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-26 23:46:24,472 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-26 23:46:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-26 23:46:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-26 23:46:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 23:46:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 23:46:24,475 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 23:46:24,843 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 23:46:24,844 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-26 23:46:24,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:46:24 BoogieIcfgContainer [2019-12-26 23:46:24,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 23:46:24,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 23:46:24,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 23:46:24,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 23:46:24,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 11:46:23" (1/3) ... [2019-12-26 23:46:24,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d7197a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:46:24, skipping insertion in model container [2019-12-26 23:46:24,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:24" (2/3) ... [2019-12-26 23:46:24,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d7197a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:46:24, skipping insertion in model container [2019-12-26 23:46:24,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:46:24" (3/3) ... [2019-12-26 23:46:24,854 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc.i [2019-12-26 23:46:24,863 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 23:46:24,863 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 23:46:24,870 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-26 23:46:24,871 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 23:46:24,898 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,898 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,898 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,902 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,902 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,902 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,903 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,903 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,903 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,904 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,904 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,904 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,905 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,905 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,905 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,905 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,906 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,906 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,910 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,911 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,911 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,911 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,916 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,917 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,917 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,917 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,920 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,921 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,921 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,921 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:24,933 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-26 23:46:24,950 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 23:46:24,950 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 23:46:24,951 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 23:46:24,951 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 23:46:24,951 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 23:46:24,951 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 23:46:24,951 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 23:46:24,951 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 23:46:24,963 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-26 23:46:24,965 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-26 23:46:25,010 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-26 23:46:25,011 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:46:25,018 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:46:25,021 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-26 23:46:25,043 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-26 23:46:25,044 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:46:25,046 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:46:25,051 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-26 23:46:25,052 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 23:46:26,651 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-26 23:46:26,829 INFO L206 etLargeBlockEncoding]: Checked pairs total: 504 [2019-12-26 23:46:26,830 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-26 23:46:26,833 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-26 23:46:26,843 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-26 23:46:26,846 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-26 23:46:26,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-26 23:46:26,856 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:46:26,857 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:46:26,857 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:46:26,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:46:26,864 INFO L82 PathProgramCache]: Analyzing trace with hash -411766657, now seen corresponding path program 1 times [2019-12-26 23:46:26,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:46:26,875 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627164852] [2019-12-26 23:46:26,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:46:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:46:27,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:46:27,079 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627164852] [2019-12-26 23:46:27,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:46:27,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:46:27,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96887766] [2019-12-26 23:46:27,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:46:27,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:46:27,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:46:27,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:46:27,104 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-26 23:46:27,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:46:27,133 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-26 23:46:27,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:46:27,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-26 23:46:27,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:46:27,147 INFO L225 Difference]: With dead ends: 44 [2019-12-26 23:46:27,148 INFO L226 Difference]: Without dead ends: 36 [2019-12-26 23:46:27,149 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:46:27,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-26 23:46:27,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-26 23:46:27,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-26 23:46:27,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-26 23:46:27,194 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-26 23:46:27,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:46:27,195 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-26 23:46:27,195 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:46:27,195 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-26 23:46:27,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-26 23:46:27,196 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:46:27,196 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:46:27,197 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:46:27,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:46:27,197 INFO L82 PathProgramCache]: Analyzing trace with hash -939565689, now seen corresponding path program 1 times [2019-12-26 23:46:27,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:46:27,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621092618] [2019-12-26 23:46:27,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:46:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:46:27,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:46:27,277 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621092618] [2019-12-26 23:46:27,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:46:27,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:46:27,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757099889] [2019-12-26 23:46:27,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:46:27,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:46:27,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:46:27,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:46:27,282 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-26 23:46:27,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:46:27,302 INFO L93 Difference]: Finished difference Result 33 states and 61 transitions. [2019-12-26 23:46:27,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:46:27,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-26 23:46:27,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:46:27,303 INFO L225 Difference]: With dead ends: 33 [2019-12-26 23:46:27,303 INFO L226 Difference]: Without dead ends: 33 [2019-12-26 23:46:27,304 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:46:27,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-26 23:46:27,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-26 23:46:27,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-26 23:46:27,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 61 transitions. [2019-12-26 23:46:27,317 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 61 transitions. Word has length 9 [2019-12-26 23:46:27,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:46:27,317 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 61 transitions. [2019-12-26 23:46:27,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:46:27,318 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 61 transitions. [2019-12-26 23:46:27,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 23:46:27,320 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:46:27,320 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:46:27,320 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:46:27,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:46:27,321 INFO L82 PathProgramCache]: Analyzing trace with hash 934712652, now seen corresponding path program 1 times [2019-12-26 23:46:27,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:46:27,321 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976041543] [2019-12-26 23:46:27,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:46:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:46:27,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:46:27,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976041543] [2019-12-26 23:46:27,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:46:27,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:46:27,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903145816] [2019-12-26 23:46:27,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:46:27,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:46:27,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:46:27,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:46:27,426 INFO L87 Difference]: Start difference. First operand 33 states and 61 transitions. Second operand 3 states. [2019-12-26 23:46:27,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:46:27,433 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-26 23:46:27,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:46:27,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-26 23:46:27,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:46:27,435 INFO L225 Difference]: With dead ends: 32 [2019-12-26 23:46:27,435 INFO L226 Difference]: Without dead ends: 32 [2019-12-26 23:46:27,435 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:46:27,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-26 23:46:27,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-26 23:46:27,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-26 23:46:27,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-26 23:46:27,443 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 10 [2019-12-26 23:46:27,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:46:27,444 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-26 23:46:27,444 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:46:27,445 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-26 23:46:27,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 23:46:27,446 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:46:27,446 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:46:27,446 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:46:27,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:46:27,447 INFO L82 PathProgramCache]: Analyzing trace with hash -679898138, now seen corresponding path program 1 times [2019-12-26 23:46:27,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:46:27,448 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086157567] [2019-12-26 23:46:27,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:46:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:46:27,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:46:27,516 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086157567] [2019-12-26 23:46:27,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:46:27,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:46:27,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424218785] [2019-12-26 23:46:27,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:46:27,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:46:27,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:46:27,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:46:27,518 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 3 states. [2019-12-26 23:46:27,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:46:27,529 INFO L93 Difference]: Finished difference Result 35 states and 61 transitions. [2019-12-26 23:46:27,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:46:27,530 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-26 23:46:27,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:46:27,530 INFO L225 Difference]: With dead ends: 35 [2019-12-26 23:46:27,531 INFO L226 Difference]: Without dead ends: 21 [2019-12-26 23:46:27,531 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:46:27,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-26 23:46:27,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-26 23:46:27,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-26 23:46:27,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 31 transitions. [2019-12-26 23:46:27,534 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 31 transitions. Word has length 10 [2019-12-26 23:46:27,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:46:27,535 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 31 transitions. [2019-12-26 23:46:27,535 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:46:27,535 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2019-12-26 23:46:27,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 23:46:27,536 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:46:27,536 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:46:27,536 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:46:27,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:46:27,537 INFO L82 PathProgramCache]: Analyzing trace with hash 398044178, now seen corresponding path program 1 times [2019-12-26 23:46:27,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:46:27,537 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458947011] [2019-12-26 23:46:27,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:46:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:46:27,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:46:27,576 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458947011] [2019-12-26 23:46:27,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:46:27,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 23:46:27,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219446194] [2019-12-26 23:46:27,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:46:27,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:46:27,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:46:27,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:46:27,579 INFO L87 Difference]: Start difference. First operand 21 states and 31 transitions. Second operand 4 states. [2019-12-26 23:46:27,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:46:27,605 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2019-12-26 23:46:27,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:46:27,606 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-26 23:46:27,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:46:27,606 INFO L225 Difference]: With dead ends: 23 [2019-12-26 23:46:27,606 INFO L226 Difference]: Without dead ends: 15 [2019-12-26 23:46:27,607 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 [2019-12-26 23:46:27,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-26 23:46:27,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-26 23:46:27,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-26 23:46:27,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-12-26 23:46:27,613 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2019-12-26 23:46:27,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:46:27,613 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-26 23:46:27,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:46:27,613 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-12-26 23:46:27,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 23:46:27,614 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:46:27,614 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:46:27,614 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:46:27,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:46:27,615 INFO L82 PathProgramCache]: Analyzing trace with hash -462405218, now seen corresponding path program 2 times [2019-12-26 23:46:27,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:46:27,615 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020219879] [2019-12-26 23:46:27,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:46:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:46:27,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:46:27,664 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020219879] [2019-12-26 23:46:27,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:46:27,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:46:27,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011523321] [2019-12-26 23:46:27,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:46:27,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:46:27,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:46:27,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:46:27,671 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2019-12-26 23:46:27,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:46:27,691 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-12-26 23:46:27,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:46:27,692 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-26 23:46:27,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:46:27,692 INFO L225 Difference]: With dead ends: 14 [2019-12-26 23:46:27,692 INFO L226 Difference]: Without dead ends: 0 [2019-12-26 23:46:27,693 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-26 23:46:27,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-26 23:46:27,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-26 23:46:27,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-26 23:46:27,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-26 23:46:27,694 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-26 23:46:27,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:46:27,694 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-26 23:46:27,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:46:27,694 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-26 23:46:27,694 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-26 23:46:27,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 11:46:27 BasicIcfg [2019-12-26 23:46:27,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 23:46:27,699 INFO L168 Benchmark]: Toolchain (without parser) took 4190.57 ms. Allocated memory was 142.1 MB in the beginning and 254.8 MB in the end (delta: 112.7 MB). Free memory was 98.8 MB in the beginning and 137.2 MB in the end (delta: -38.4 MB). Peak memory consumption was 74.3 MB. Max. memory is 7.1 GB. [2019-12-26 23:46:27,701 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-26 23:46:27,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 805.35 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 98.3 MB in the beginning and 156.4 MB in the end (delta: -58.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-12-26 23:46:27,702 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.82 ms. Allocated memory is still 199.8 MB. Free memory was 156.4 MB in the beginning and 154.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-26 23:46:27,703 INFO L168 Benchmark]: Boogie Preprocessor took 25.45 ms. Allocated memory is still 199.8 MB. Free memory was 154.3 MB in the beginning and 152.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-26 23:46:27,704 INFO L168 Benchmark]: RCFGBuilder took 456.33 ms. Allocated memory is still 199.8 MB. Free memory was 152.9 MB in the beginning and 132.7 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-26 23:46:27,705 INFO L168 Benchmark]: TraceAbstraction took 2851.10 ms. Allocated memory was 199.8 MB in the beginning and 254.8 MB in the end (delta: 55.1 MB). Free memory was 132.0 MB in the beginning and 137.2 MB in the end (delta: -5.2 MB). Peak memory consumption was 49.9 MB. Max. memory is 7.1 GB. [2019-12-26 23:46:27,710 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 805.35 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 98.3 MB in the beginning and 156.4 MB in the end (delta: -58.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.82 ms. Allocated memory is still 199.8 MB. Free memory was 156.4 MB in the beginning and 154.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.45 ms. Allocated memory is still 199.8 MB. Free memory was 154.3 MB in the beginning and 152.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 456.33 ms. Allocated memory is still 199.8 MB. Free memory was 152.9 MB in the beginning and 132.7 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2851.10 ms. Allocated memory was 199.8 MB in the beginning and 254.8 MB in the end (delta: 55.1 MB). Free memory was 132.0 MB in the beginning and 137.2 MB in the end (delta: -5.2 MB). Peak memory consumption was 49.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 246 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 18 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 504 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 14 SDslu, 37 SDs, 0 SdLazy, 30 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1219 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...