/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/safe009_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 07:35:18,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 07:35:18,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 07:35:18,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 07:35:18,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 07:35:18,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 07:35:18,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 07:35:18,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 07:35:18,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 07:35:18,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 07:35:18,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 07:35:18,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 07:35:18,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 07:35:18,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 07:35:18,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 07:35:18,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 07:35:18,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 07:35:18,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 07:35:18,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 07:35:18,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 07:35:18,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 07:35:18,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 07:35:18,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 07:35:18,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 07:35:18,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 07:35:18,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 07:35:18,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 07:35:18,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 07:35:18,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 07:35:18,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 07:35:18,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 07:35:18,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 07:35:18,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 07:35:18,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 07:35:18,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 07:35:18,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 07:35:18,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 07:35:18,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 07:35:18,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 07:35:18,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 07:35:18,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 07:35:18,356 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 [2019-12-27 07:35:18,373 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 07:35:18,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 07:35:18,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 07:35:18,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 07:35:18,375 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 07:35:18,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 07:35:18,376 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 07:35:18,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 07:35:18,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 07:35:18,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 07:35:18,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 07:35:18,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 07:35:18,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 07:35:18,377 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 07:35:18,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 07:35:18,377 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 07:35:18,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 07:35:18,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 07:35:18,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 07:35:18,379 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 07:35:18,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 07:35:18,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:35:18,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 07:35:18,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 07:35:18,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 07:35:18,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 07:35:18,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 07:35:18,382 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 07:35:18,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 07:35:18,382 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 07:35:18,689 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 07:35:18,709 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 07:35:18,713 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 07:35:18,714 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 07:35:18,715 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 07:35:18,716 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2019-12-27 07:35:18,792 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32ab32adc/8d72187ddf8c4325a3788216dbf5f721/FLAG10dee6622 [2019-12-27 07:35:19,303 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 07:35:19,304 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2019-12-27 07:35:19,319 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32ab32adc/8d72187ddf8c4325a3788216dbf5f721/FLAG10dee6622 [2019-12-27 07:35:19,596 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32ab32adc/8d72187ddf8c4325a3788216dbf5f721 [2019-12-27 07:35:19,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 07:35:19,609 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 07:35:19,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 07:35:19,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 07:35:19,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 07:35:19,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:35:19" (1/1) ... [2019-12-27 07:35:19,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65149110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:35:19, skipping insertion in model container [2019-12-27 07:35:19,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:35:19" (1/1) ... [2019-12-27 07:35:19,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 07:35:19,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 07:35:20,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:35:20,189 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 07:35:20,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:35:20,322 INFO L208 MainTranslator]: Completed translation [2019-12-27 07:35:20,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:35:20 WrapperNode [2019-12-27 07:35:20,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 07:35:20,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 07:35:20,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 07:35:20,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 07:35:20,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:35:20" (1/1) ... [2019-12-27 07:35:20,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:35:20" (1/1) ... [2019-12-27 07:35:20,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 07:35:20,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 07:35:20,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 07:35:20,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 07:35:20,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:35:20" (1/1) ... [2019-12-27 07:35:20,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:35:20" (1/1) ... [2019-12-27 07:35:20,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:35:20" (1/1) ... [2019-12-27 07:35:20,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:35:20" (1/1) ... [2019-12-27 07:35:20,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:35:20" (1/1) ... [2019-12-27 07:35:20,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:35:20" (1/1) ... [2019-12-27 07:35:20,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:35:20" (1/1) ... [2019-12-27 07:35:20,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 07:35:20,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 07:35:20,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 07:35:20,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 07:35:20,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:35:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:35:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 07:35:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 07:35:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 07:35:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 07:35:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 07:35:20,467 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 07:35:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 07:35:20,468 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 07:35:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 07:35:20,468 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 07:35:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 07:35:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 07:35:20,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 07:35:20,470 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 07:35:20,836 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 07:35:20,836 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 07:35:20,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:35:20 BoogieIcfgContainer [2019-12-27 07:35:20,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 07:35:20,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 07:35:20,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 07:35:20,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 07:35:20,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:35:19" (1/3) ... [2019-12-27 07:35:20,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a43439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:35:20, skipping insertion in model container [2019-12-27 07:35:20,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:35:20" (2/3) ... [2019-12-27 07:35:20,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a43439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:35:20, skipping insertion in model container [2019-12-27 07:35:20,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:35:20" (3/3) ... [2019-12-27 07:35:20,850 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_pso.opt.i [2019-12-27 07:35:20,861 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 07:35:20,861 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 07:35:20,872 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 07:35:20,873 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 07:35:20,901 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,902 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,902 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,903 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,903 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,903 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,904 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,904 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,904 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,905 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,905 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,905 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,906 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,906 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,906 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,907 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,907 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,907 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,911 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,912 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,912 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,912 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,925 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,926 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,926 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,926 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,930 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,930 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,930 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,932 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:35:20,948 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 07:35:20,968 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 07:35:20,968 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 07:35:20,968 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 07:35:20,968 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 07:35:20,969 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 07:35:20,969 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 07:35:20,969 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 07:35:20,969 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 07:35:20,985 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 07:35:20,988 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 07:35:21,046 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 07:35:21,047 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:35:21,060 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. [2019-12-27 07:35:21,064 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 07:35:21,083 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 07:35:21,083 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:35:21,084 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. [2019-12-27 07:35:21,089 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 07:35:21,090 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 07:35:22,404 INFO L206 etLargeBlockEncoding]: Checked pairs total: 444 [2019-12-27 07:35:22,405 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 07:35:22,408 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 07:35:22,416 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 07:35:22,418 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 07:35:22,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 07:35:22,424 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:35:22,425 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:35:22,425 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:35:22,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:35:22,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1049428584, now seen corresponding path program 1 times [2019-12-27 07:35:22,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:35:22,438 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754706409] [2019-12-27 07:35:22,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:35:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:35:22,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:35:22,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754706409] [2019-12-27 07:35:22,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:35:22,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:35:22,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066784316] [2019-12-27 07:35:22,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:35:22,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:35:22,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:35:22,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:35:22,707 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 07:35:22,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:35:22,763 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-27 07:35:22,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:35:22,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 07:35:22,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:35:22,779 INFO L225 Difference]: With dead ends: 44 [2019-12-27 07:35:22,780 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 07:35:22,781 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:35:22,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 07:35:22,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 07:35:22,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 07:35:22,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 07:35:22,828 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 07:35:22,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:35:22,829 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 07:35:22,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:35:22,829 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 07:35:22,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:35:22,830 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:35:22,830 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:35:22,831 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:35:22,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:35:22,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1827452116, now seen corresponding path program 1 times [2019-12-27 07:35:22,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:35:22,832 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528974034] [2019-12-27 07:35:22,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:35:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:35:22,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:35:22,941 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528974034] [2019-12-27 07:35:22,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:35:22,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:35:22,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52100295] [2019-12-27 07:35:22,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:35:22,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:35:22,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:35:22,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:35:22,946 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 07:35:22,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:35:22,954 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-27 07:35:22,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:35:22,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 07:35:22,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:35:22,956 INFO L225 Difference]: With dead ends: 34 [2019-12-27 07:35:22,956 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 07:35:22,958 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:35:22,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 07:35:22,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 07:35:22,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 07:35:22,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 07:35:22,969 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-27 07:35:22,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:35:22,971 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 07:35:22,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:35:22,972 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 07:35:22,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:35:22,973 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:35:22,973 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:35:22,974 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:35:22,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:35:22,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1827452178, now seen corresponding path program 1 times [2019-12-27 07:35:22,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:35:22,975 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210996411] [2019-12-27 07:35:22,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:35:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:35:23,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:35:23,052 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210996411] [2019-12-27 07:35:23,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:35:23,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:35:23,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148487921] [2019-12-27 07:35:23,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:35:23,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:35:23,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:35:23,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:35:23,054 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 07:35:23,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:35:23,081 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 07:35:23,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:35:23,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 07:35:23,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:35:23,083 INFO L225 Difference]: With dead ends: 36 [2019-12-27 07:35:23,083 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 07:35:23,084 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 [2019-12-27 07:35:23,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 07:35:23,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 07:35:23,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 07:35:23,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-27 07:35:23,090 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-27 07:35:23,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:35:23,092 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-27 07:35:23,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:35:23,092 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-27 07:35:23,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:35:23,093 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:35:23,093 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:35:23,094 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:35:23,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:35:23,095 INFO L82 PathProgramCache]: Analyzing trace with hash 816442522, now seen corresponding path program 1 times [2019-12-27 07:35:23,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:35:23,096 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846522076] [2019-12-27 07:35:23,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:35:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:35:23,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:35:23,169 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846522076] [2019-12-27 07:35:23,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:35:23,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:35:23,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67286238] [2019-12-27 07:35:23,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:35:23,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:35:23,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:35:23,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:35:23,174 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 4 states. [2019-12-27 07:35:23,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:35:23,196 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2019-12-27 07:35:23,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:35:23,197 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 07:35:23,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:35:23,198 INFO L225 Difference]: With dead ends: 33 [2019-12-27 07:35:23,198 INFO L226 Difference]: Without dead ends: 21 [2019-12-27 07:35:23,198 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 07:35:23,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-27 07:35:23,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-27 07:35:23,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-27 07:35:23,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2019-12-27 07:35:23,202 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 10 [2019-12-27 07:35:23,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:35:23,202 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2019-12-27 07:35:23,202 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:35:23,202 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2019-12-27 07:35:23,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:35:23,203 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:35:23,203 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:35:23,203 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:35:23,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:35:23,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1244284059, now seen corresponding path program 1 times [2019-12-27 07:35:23,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:35:23,204 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545481010] [2019-12-27 07:35:23,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:35:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:35:23,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:35:23,243 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545481010] [2019-12-27 07:35:23,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:35:23,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:35:23,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858535473] [2019-12-27 07:35:23,244 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:35:23,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:35:23,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:35:23,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:35:23,245 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand 4 states. [2019-12-27 07:35:23,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:35:23,263 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2019-12-27 07:35:23,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:35:23,264 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:35:23,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:35:23,264 INFO L225 Difference]: With dead ends: 20 [2019-12-27 07:35:23,264 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 07:35:23,265 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 07:35:23,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 07:35:23,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 07:35:23,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 07:35:23,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 07:35:23,266 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 07:35:23,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:35:23,266 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 07:35:23,266 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:35:23,266 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 07:35:23,266 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 07:35:23,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:35:23 BasicIcfg [2019-12-27 07:35:23,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 07:35:23,274 INFO L168 Benchmark]: Toolchain (without parser) took 3664.39 ms. Allocated memory was 145.2 MB in the beginning and 246.4 MB in the end (delta: 101.2 MB). Free memory was 102.1 MB in the beginning and 176.5 MB in the end (delta: -74.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-12-27 07:35:23,275 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 07:35:23,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.91 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.9 MB in the beginning and 160.2 MB in the end (delta: -58.2 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2019-12-27 07:35:23,276 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.16 ms. Allocated memory is still 202.9 MB. Free memory was 160.2 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 07:35:23,277 INFO L168 Benchmark]: Boogie Preprocessor took 27.44 ms. Allocated memory is still 202.9 MB. Free memory was 158.1 MB in the beginning and 156.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:35:23,278 INFO L168 Benchmark]: RCFGBuilder took 438.29 ms. Allocated memory is still 202.9 MB. Free memory was 156.8 MB in the beginning and 136.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 07:35:23,279 INFO L168 Benchmark]: TraceAbstraction took 2431.07 ms. Allocated memory was 202.9 MB in the beginning and 246.4 MB in the end (delta: 43.5 MB). Free memory was 136.3 MB in the beginning and 176.5 MB in the end (delta: -40.2 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:35:23,283 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 712.91 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.9 MB in the beginning and 160.2 MB in the end (delta: -58.2 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.16 ms. Allocated memory is still 202.9 MB. Free memory was 160.2 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.44 ms. Allocated memory is still 202.9 MB. Free memory was 158.1 MB in the beginning and 156.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 438.29 ms. Allocated memory is still 202.9 MB. Free memory was 156.8 MB in the beginning and 136.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2431.07 ms. Allocated memory was 202.9 MB in the beginning and 246.4 MB in the end (delta: 43.5 MB). Free memory was 136.3 MB in the beginning and 176.5 MB in the end (delta: -40.2 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 219 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 444 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 26 SDslu, 29 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 962 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...