/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-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 19:53:25,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 19:53:25,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 19:53:25,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 19:53:25,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 19:53:25,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 19:53:25,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 19:53:25,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 19:53:25,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 19:53:25,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 19:53:25,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 19:53:25,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 19:53:25,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 19:53:25,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 19:53:25,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 19:53:25,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 19:53:25,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 19:53:25,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 19:53:25,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 19:53:25,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 19:53:25,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 19:53:25,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 19:53:25,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 19:53:25,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 19:53:25,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 19:53:25,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 19:53:25,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 19:53:25,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 19:53:25,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 19:53:25,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 19:53:25,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 19:53:25,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 19:53:25,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 19:53:25,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 19:53:25,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 19:53:25,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 19:53:25,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 19:53:25,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 19:53:25,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 19:53:25,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 19:53:25,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 19:53:25,410 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-NoLbe-McrStrategy.epf [2020-04-18 19:53:25,447 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 19:53:25,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 19:53:25,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 19:53:25,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 19:53:25,452 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 19:53:25,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 19:53:25,453 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 19:53:25,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 19:53:25,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 19:53:25,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 19:53:25,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 19:53:25,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 19:53:25,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 19:53:25,456 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 19:53:25,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 19:53:25,457 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 19:53:25,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 19:53:25,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 19:53:25,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 19:53:25,457 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 19:53:25,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 19:53:25,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 19:53:25,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 19:53:25,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 19:53:25,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 19:53:25,459 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 19:53:25,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 19:53:25,461 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 19:53:25,461 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 19:53:25,461 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 19:53:25,462 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 19:53:25,746 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 19:53:25,764 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 19:53:25,768 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 19:53:25,771 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 19:53:25,771 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 19:53:25,773 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.opt.i [2020-04-18 19:53:25,840 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b44606330/1fc834d81fb74b9fb5dff123cf149a26/FLAG322bb0d65 [2020-04-18 19:53:26,399 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 19:53:26,399 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_tso.opt.i [2020-04-18 19:53:26,418 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b44606330/1fc834d81fb74b9fb5dff123cf149a26/FLAG322bb0d65 [2020-04-18 19:53:26,727 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b44606330/1fc834d81fb74b9fb5dff123cf149a26 [2020-04-18 19:53:26,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 19:53:26,752 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 19:53:26,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 19:53:26,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 19:53:26,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 19:53:26,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:53:26" (1/1) ... [2020-04-18 19:53:26,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1006d2b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:26, skipping insertion in model container [2020-04-18 19:53:26,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:53:26" (1/1) ... [2020-04-18 19:53:26,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 19:53:26,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 19:53:27,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:53:27,312 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 19:53:27,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:53:27,448 INFO L208 MainTranslator]: Completed translation [2020-04-18 19:53:27,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:27 WrapperNode [2020-04-18 19:53:27,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 19:53:27,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 19:53:27,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 19:53:27,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 19:53:27,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:27" (1/1) ... [2020-04-18 19:53:27,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:27" (1/1) ... [2020-04-18 19:53:27,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 19:53:27,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 19:53:27,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 19:53:27,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 19:53:27,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:27" (1/1) ... [2020-04-18 19:53:27,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:27" (1/1) ... [2020-04-18 19:53:27,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:27" (1/1) ... [2020-04-18 19:53:27,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:27" (1/1) ... [2020-04-18 19:53:27,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:27" (1/1) ... [2020-04-18 19:53:27,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:27" (1/1) ... [2020-04-18 19:53:27,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:27" (1/1) ... [2020-04-18 19:53:27,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 19:53:27,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 19:53:27,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 19:53:27,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 19:53:27,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:27" (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 [2020-04-18 19:53:27,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 19:53:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 19:53:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 19:53:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 19:53:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 19:53:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 19:53:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 19:53:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 19:53:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 19:53:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 19:53:27,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 19:53:27,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 19:53:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 19:53:27,593 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 19:53:27,974 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 19:53:27,975 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 19:53:27,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:53:27 BoogieIcfgContainer [2020-04-18 19:53:27,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 19:53:27,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 19:53:27,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 19:53:27,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 19:53:27,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:53:26" (1/3) ... [2020-04-18 19:53:27,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755a9eb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:53:27, skipping insertion in model container [2020-04-18 19:53:27,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:27" (2/3) ... [2020-04-18 19:53:27,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755a9eb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:53:27, skipping insertion in model container [2020-04-18 19:53:27,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:53:27" (3/3) ... [2020-04-18 19:53:27,991 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_tso.opt.i [2020-04-18 19:53:28,001 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 19:53:28,002 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 19:53:28,008 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 19:53:28,009 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 19:53:28,034 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,035 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,035 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,035 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,036 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,036 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,037 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,037 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,037 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,037 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,038 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,038 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,039 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,039 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,039 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,039 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,040 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,040 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,044 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,045 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,045 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,045 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,052 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,053 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,053 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,053 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,057 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,057 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,057 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,058 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:28,077 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 19:53:28,095 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 19:53:28,096 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 19:53:28,096 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 19:53:28,096 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 19:53:28,096 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 19:53:28,096 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 19:53:28,097 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 19:53:28,097 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 19:53:28,110 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 69 transitions, 153 flow [2020-04-18 19:53:28,607 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 7268 states. [2020-04-18 19:53:28,610 INFO L276 IsEmpty]: Start isEmpty. Operand 7268 states. [2020-04-18 19:53:28,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 19:53:28,646 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:28,648 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:53:28,648 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:28,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:28,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1749580001, now seen corresponding path program 1 times [2020-04-18 19:53:28,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:28,663 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1920488712] [2020-04-18 19:53:28,680 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:28,698 INFO L259 McrAutomatonBuilder]: Finished intersection with 37 states and 36 transitions. [2020-04-18 19:53:28,702 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-04-18 19:53:28,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 19:53:28,703 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:28,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:28,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1749580001, now seen corresponding path program 2 times [2020-04-18 19:53:28,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:28,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72005137] [2020-04-18 19:53:28,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:29,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:53:29,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72005137] [2020-04-18 19:53:29,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:29,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:53:29,189 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:29,192 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:29,204 INFO L259 McrAutomatonBuilder]: Finished intersection with 37 states and 36 transitions. [2020-04-18 19:53:29,204 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:29,263 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:53:29,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:53:29,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:53:29,270 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 7 states. [2020-04-18 19:53:29,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:29,356 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2020-04-18 19:53:29,356 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2020-04-18 19:53:29,358 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:29,359 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1920488712] [2020-04-18 19:53:29,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:29,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:53:29,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1920488712] [2020-04-18 19:53:29,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:53:29,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:29,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:53:29,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 19:53:29,370 INFO L87 Difference]: Start difference. First operand 7268 states. Second operand 7 states. [2020-04-18 19:53:29,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:29,706 INFO L93 Difference]: Finished difference Result 10040 states and 34690 transitions. [2020-04-18 19:53:29,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:53:29,708 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-04-18 19:53:29,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:29,752 INFO L225 Difference]: With dead ends: 10040 [2020-04-18 19:53:29,752 INFO L226 Difference]: Without dead ends: 3530 [2020-04-18 19:53:29,754 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 19:53:29,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3530 states. [2020-04-18 19:53:29,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3530 to 3530. [2020-04-18 19:53:29,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3530 states. [2020-04-18 19:53:30,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3530 states to 3530 states and 11925 transitions. [2020-04-18 19:53:30,015 INFO L78 Accepts]: Start accepts. Automaton has 3530 states and 11925 transitions. Word has length 36 [2020-04-18 19:53:30,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:30,017 INFO L479 AbstractCegarLoop]: Abstraction has 3530 states and 11925 transitions. [2020-04-18 19:53:30,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:53:30,021 INFO L276 IsEmpty]: Start isEmpty. Operand 3530 states and 11925 transitions. [2020-04-18 19:53:30,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 19:53:30,032 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:30,038 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:53:30,039 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:30,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:30,039 INFO L82 PathProgramCache]: Analyzing trace with hash 684595906, now seen corresponding path program 1 times [2020-04-18 19:53:30,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:30,040 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [365247818] [2020-04-18 19:53:30,041 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:30,043 INFO L259 McrAutomatonBuilder]: Finished intersection with 63 states and 86 transitions. [2020-04-18 19:53:30,045 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2020-04-18 19:53:30,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 19:53:30,047 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:30,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:30,048 INFO L82 PathProgramCache]: Analyzing trace with hash 684595906, now seen corresponding path program 2 times [2020-04-18 19:53:30,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:30,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728276102] [2020-04-18 19:53:30,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:30,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:53:30,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728276102] [2020-04-18 19:53:30,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:30,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:53:30,252 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:30,256 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:30,261 INFO L259 McrAutomatonBuilder]: Finished intersection with 51 states and 62 transitions. [2020-04-18 19:53:30,261 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:30,313 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 19:53:30,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:53:30,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:53:30,313 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 7 states. [2020-04-18 19:53:30,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:30,426 INFO L93 Difference]: Finished difference Result 63 states and 86 transitions. [2020-04-18 19:53:30,426 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 86 transitions. [2020-04-18 19:53:30,427 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:30,427 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [365247818] [2020-04-18 19:53:30,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:30,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:53:30,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [365247818] [2020-04-18 19:53:30,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:53:30,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:30,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:53:30,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:53:30,430 INFO L87 Difference]: Start difference. First operand 3530 states and 11925 transitions. Second operand 7 states. [2020-04-18 19:53:30,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:30,654 INFO L93 Difference]: Finished difference Result 4930 states and 16520 transitions. [2020-04-18 19:53:30,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 19:53:30,654 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-04-18 19:53:30,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:30,672 INFO L225 Difference]: With dead ends: 4930 [2020-04-18 19:53:30,673 INFO L226 Difference]: Without dead ends: 2620 [2020-04-18 19:53:30,674 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 19:53:30,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2620 states. [2020-04-18 19:53:30,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2620 to 2620. [2020-04-18 19:53:30,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2620 states. [2020-04-18 19:53:30,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2620 states to 2620 states and 8569 transitions. [2020-04-18 19:53:30,759 INFO L78 Accepts]: Start accepts. Automaton has 2620 states and 8569 transitions. Word has length 38 [2020-04-18 19:53:30,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:30,760 INFO L479 AbstractCegarLoop]: Abstraction has 2620 states and 8569 transitions. [2020-04-18 19:53:30,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:53:30,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2620 states and 8569 transitions. [2020-04-18 19:53:30,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:53:30,766 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:30,766 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:53:30,766 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:30,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:30,766 INFO L82 PathProgramCache]: Analyzing trace with hash 164325217, now seen corresponding path program 1 times [2020-04-18 19:53:30,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:30,767 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [891323939] [2020-04-18 19:53:30,768 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:30,772 INFO L259 McrAutomatonBuilder]: Finished intersection with 149 states and 304 transitions. [2020-04-18 19:53:30,773 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2020-04-18 19:53:30,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:53:30,774 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:30,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:30,775 INFO L82 PathProgramCache]: Analyzing trace with hash 164325217, now seen corresponding path program 2 times [2020-04-18 19:53:30,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:30,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257457897] [2020-04-18 19:53:30,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:30,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:53:30,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257457897] [2020-04-18 19:53:30,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:30,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:53:30,896 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:30,900 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:30,910 INFO L259 McrAutomatonBuilder]: Finished intersection with 87 states and 144 transitions. [2020-04-18 19:53:30,910 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:30,949 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 19:53:30,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:53:30,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:53:30,950 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 6 states. [2020-04-18 19:53:31,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:31,001 INFO L93 Difference]: Finished difference Result 149 states and 304 transitions. [2020-04-18 19:53:31,001 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 304 transitions. [2020-04-18 19:53:31,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:31,002 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [891323939] [2020-04-18 19:53:31,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:31,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:53:31,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [891323939] [2020-04-18 19:53:31,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 19:53:31,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:31,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:53:31,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:53:31,004 INFO L87 Difference]: Start difference. First operand 2620 states and 8569 transitions. Second operand 6 states. [2020-04-18 19:53:31,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:31,107 INFO L93 Difference]: Finished difference Result 3308 states and 10677 transitions. [2020-04-18 19:53:31,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:53:31,108 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-04-18 19:53:31,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:31,175 INFO L225 Difference]: With dead ends: 3308 [2020-04-18 19:53:31,175 INFO L226 Difference]: Without dead ends: 2412 [2020-04-18 19:53:31,176 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:53:31,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2020-04-18 19:53:31,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2412. [2020-04-18 19:53:31,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2412 states. [2020-04-18 19:53:31,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 7777 transitions. [2020-04-18 19:53:31,247 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 7777 transitions. Word has length 40 [2020-04-18 19:53:31,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:31,247 INFO L479 AbstractCegarLoop]: Abstraction has 2412 states and 7777 transitions. [2020-04-18 19:53:31,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 19:53:31,248 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 7777 transitions. [2020-04-18 19:53:31,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:53:31,254 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:31,254 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:53:31,254 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:31,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:31,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1288769191, now seen corresponding path program 1 times [2020-04-18 19:53:31,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:31,255 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [435996367] [2020-04-18 19:53:31,257 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:31,261 INFO L259 McrAutomatonBuilder]: Finished intersection with 192 states and 413 transitions. [2020-04-18 19:53:31,262 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2020-04-18 19:53:31,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:53:31,264 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:31,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:31,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1288769191, now seen corresponding path program 2 times [2020-04-18 19:53:31,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:31,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997905991] [2020-04-18 19:53:31,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:31,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:53:31,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997905991] [2020-04-18 19:53:31,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:31,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:53:31,374 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:31,378 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:31,386 INFO L259 McrAutomatonBuilder]: Finished intersection with 77 states and 115 transitions. [2020-04-18 19:53:31,386 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:31,463 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 19:53:31,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:53:31,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:53:31,463 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 8 states. [2020-04-18 19:53:31,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:31,575 INFO L93 Difference]: Finished difference Result 192 states and 413 transitions. [2020-04-18 19:53:31,575 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 413 transitions. [2020-04-18 19:53:31,576 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:31,576 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [435996367] [2020-04-18 19:53:31,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:31,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:53:31,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [435996367] [2020-04-18 19:53:31,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 19:53:31,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:31,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:53:31,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-04-18 19:53:31,578 INFO L87 Difference]: Start difference. First operand 2412 states and 7777 transitions. Second operand 8 states. [2020-04-18 19:53:31,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:31,707 INFO L93 Difference]: Finished difference Result 2508 states and 7847 transitions. [2020-04-18 19:53:31,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 19:53:31,707 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-04-18 19:53:31,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:31,719 INFO L225 Difference]: With dead ends: 2508 [2020-04-18 19:53:31,719 INFO L226 Difference]: Without dead ends: 1740 [2020-04-18 19:53:31,720 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2020-04-18 19:53:31,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2020-04-18 19:53:31,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1740. [2020-04-18 19:53:31,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1740 states. [2020-04-18 19:53:31,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1740 states to 1740 states and 5343 transitions. [2020-04-18 19:53:31,770 INFO L78 Accepts]: Start accepts. Automaton has 1740 states and 5343 transitions. Word has length 41 [2020-04-18 19:53:31,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:31,770 INFO L479 AbstractCegarLoop]: Abstraction has 1740 states and 5343 transitions. [2020-04-18 19:53:31,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 19:53:31,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1740 states and 5343 transitions. [2020-04-18 19:53:31,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 19:53:31,775 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:31,775 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:53:31,776 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:31,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:31,776 INFO L82 PathProgramCache]: Analyzing trace with hash -475008714, now seen corresponding path program 1 times [2020-04-18 19:53:31,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:31,777 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [62247632] [2020-04-18 19:53:31,778 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:31,785 INFO L259 McrAutomatonBuilder]: Finished intersection with 296 states and 691 transitions. [2020-04-18 19:53:31,787 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states. [2020-04-18 19:53:31,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 19:53:31,788 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:31,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:31,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1926953606, now seen corresponding path program 2 times [2020-04-18 19:53:31,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:31,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164808406] [2020-04-18 19:53:31,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:31,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:53:31,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164808406] [2020-04-18 19:53:31,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:31,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:53:31,995 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:31,999 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:32,011 INFO L259 McrAutomatonBuilder]: Finished intersection with 97 states and 154 transitions. [2020-04-18 19:53:32,012 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:32,186 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 17 times. [2020-04-18 19:53:32,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:53:32,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:53:32,187 INFO L87 Difference]: Start difference. First operand 296 states. Second operand 9 states. [2020-04-18 19:53:32,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:32,445 INFO L93 Difference]: Finished difference Result 296 states and 691 transitions. [2020-04-18 19:53:32,445 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 691 transitions. [2020-04-18 19:53:32,446 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:32,446 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [62247632] [2020-04-18 19:53:32,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:32,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 19:53:32,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [62247632] [2020-04-18 19:53:32,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 19:53:32,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:32,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:53:32,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2020-04-18 19:53:32,448 INFO L87 Difference]: Start difference. First operand 1740 states and 5343 transitions. Second operand 9 states. [2020-04-18 19:53:32,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:32,582 INFO L93 Difference]: Finished difference Result 1389 states and 4110 transitions. [2020-04-18 19:53:32,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 19:53:32,583 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2020-04-18 19:53:32,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:32,590 INFO L225 Difference]: With dead ends: 1389 [2020-04-18 19:53:32,590 INFO L226 Difference]: Without dead ends: 957 [2020-04-18 19:53:32,591 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2020-04-18 19:53:32,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2020-04-18 19:53:32,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 957. [2020-04-18 19:53:32,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 957 states. [2020-04-18 19:53:32,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 2733 transitions. [2020-04-18 19:53:32,613 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 2733 transitions. Word has length 43 [2020-04-18 19:53:32,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:32,614 INFO L479 AbstractCegarLoop]: Abstraction has 957 states and 2733 transitions. [2020-04-18 19:53:32,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 19:53:32,614 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 2733 transitions. [2020-04-18 19:53:32,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:32,617 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:32,617 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:53:32,617 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:32,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:32,618 INFO L82 PathProgramCache]: Analyzing trace with hash 755815284, now seen corresponding path program 1 times [2020-04-18 19:53:32,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:32,618 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [712485441] [2020-04-18 19:53:32,620 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:32,652 INFO L259 McrAutomatonBuilder]: Finished intersection with 1416 states and 4511 transitions. [2020-04-18 19:53:32,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states. [2020-04-18 19:53:32,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:32,667 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:32,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:32,668 INFO L82 PathProgramCache]: Analyzing trace with hash -151719176, now seen corresponding path program 2 times [2020-04-18 19:53:32,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:32,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851156841] [2020-04-18 19:53:32,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:32,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:53:32,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851156841] [2020-04-18 19:53:32,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:32,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:53:32,864 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:32,871 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:32,909 INFO L259 McrAutomatonBuilder]: Finished intersection with 189 states and 380 transitions. [2020-04-18 19:53:32,909 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:32,963 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:53:32,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:53:32,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:53:32,964 INFO L87 Difference]: Start difference. First operand 1416 states. Second operand 7 states. [2020-04-18 19:53:33,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:33,248 INFO L93 Difference]: Finished difference Result 1936 states and 5969 transitions. [2020-04-18 19:53:33,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 5969 transitions. [2020-04-18 19:53:33,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:33,254 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:53:33,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:33,255 INFO L82 PathProgramCache]: Analyzing trace with hash -325708810, now seen corresponding path program 3 times [2020-04-18 19:53:33,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:33,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805306470] [2020-04-18 19:53:33,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:33,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:53:33,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805306470] [2020-04-18 19:53:33,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:33,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:53:33,424 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:33,429 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:33,456 INFO L259 McrAutomatonBuilder]: Finished intersection with 179 states and 358 transitions. [2020-04-18 19:53:33,456 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:33,596 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 19:53:33,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:53:33,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2020-04-18 19:53:33,598 INFO L87 Difference]: Start difference. First operand 1936 states and 5969 transitions. Second operand 9 states. [2020-04-18 19:53:34,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:34,028 INFO L93 Difference]: Finished difference Result 1956 states and 5987 transitions. [2020-04-18 19:53:34,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 5987 transitions. [2020-04-18 19:53:34,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:34,036 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 19:53:34,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:34,037 INFO L82 PathProgramCache]: Analyzing trace with hash 287322360, now seen corresponding path program 4 times [2020-04-18 19:53:34,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:34,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436898378] [2020-04-18 19:53:34,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:34,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:53:34,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436898378] [2020-04-18 19:53:34,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:34,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:53:34,137 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:34,142 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:34,179 INFO L259 McrAutomatonBuilder]: Finished intersection with 277 states and 632 transitions. [2020-04-18 19:53:34,180 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:34,367 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 31 times. [2020-04-18 19:53:34,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 19:53:34,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=1044, Unknown=0, NotChecked=0, Total=1260 [2020-04-18 19:53:34,374 INFO L87 Difference]: Start difference. First operand 1956 states and 5987 transitions. Second operand 11 states. [2020-04-18 19:53:35,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:35,962 INFO L93 Difference]: Finished difference Result 3428 states and 9987 transitions. [2020-04-18 19:53:35,963 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 9987 transitions. [2020-04-18 19:53:35,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:35,977 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 19:53:35,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:35,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1006505336, now seen corresponding path program 5 times [2020-04-18 19:53:35,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:35,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300440441] [2020-04-18 19:53:35,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:36,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:53:36,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300440441] [2020-04-18 19:53:36,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:36,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:53:36,083 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:36,087 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:36,178 INFO L259 McrAutomatonBuilder]: Finished intersection with 387 states and 984 transitions. [2020-04-18 19:53:36,178 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:36,313 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 43 times. [2020-04-18 19:53:36,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 19:53:36,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=3311, Unknown=0, NotChecked=0, Total=3906 [2020-04-18 19:53:36,315 INFO L87 Difference]: Start difference. First operand 3428 states and 9987 transitions. Second operand 12 states. [2020-04-18 19:53:36,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:36,524 INFO L93 Difference]: Finished difference Result 3904 states and 11173 transitions. [2020-04-18 19:53:36,525 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 11173 transitions. [2020-04-18 19:53:36,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:36,533 INFO L105 Mcr]: ---- MCR iteration 4 ---- [2020-04-18 19:53:36,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:36,533 INFO L82 PathProgramCache]: Analyzing trace with hash -543794384, now seen corresponding path program 6 times [2020-04-18 19:53:36,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:36,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901919661] [2020-04-18 19:53:36,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:36,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:53:36,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901919661] [2020-04-18 19:53:36,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:36,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:53:36,680 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:36,685 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:36,725 INFO L259 McrAutomatonBuilder]: Finished intersection with 260 states and 588 transitions. [2020-04-18 19:53:36,726 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:36,784 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 27 times. [2020-04-18 19:53:36,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:53:36,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=693, Invalid=3999, Unknown=0, NotChecked=0, Total=4692 [2020-04-18 19:53:36,786 INFO L87 Difference]: Start difference. First operand 3904 states and 11173 transitions. Second operand 8 states. [2020-04-18 19:53:37,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:37,141 INFO L93 Difference]: Finished difference Result 5410 states and 15120 transitions. [2020-04-18 19:53:37,141 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 15120 transitions. [2020-04-18 19:53:37,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:37,150 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [712485441] [2020-04-18 19:53:37,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:37,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 19:53:37,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [712485441] [2020-04-18 19:53:37,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-04-18 19:53:37,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:37,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-04-18 19:53:37,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=841, Invalid=5165, Unknown=0, NotChecked=0, Total=6006 [2020-04-18 19:53:37,153 INFO L87 Difference]: Start difference. First operand 957 states and 2733 transitions. Second operand 23 states. [2020-04-18 19:53:38,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:38,492 INFO L93 Difference]: Finished difference Result 1338 states and 3844 transitions. [2020-04-18 19:53:38,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-04-18 19:53:38,492 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 47 [2020-04-18 19:53:38,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:38,493 INFO L225 Difference]: With dead ends: 1338 [2020-04-18 19:53:38,493 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 19:53:38,496 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 372 SyntacticMatches, 1 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3951 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1668, Invalid=9888, Unknown=0, NotChecked=0, Total=11556 [2020-04-18 19:53:38,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 19:53:38,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 19:53:38,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 19:53:38,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 19:53:38,497 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2020-04-18 19:53:38,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:38,497 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 19:53:38,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-04-18 19:53:38,497 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 19:53:38,497 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:38,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:53:38 BasicIcfg [2020-04-18 19:53:38,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 19:53:38,504 INFO L168 Benchmark]: Toolchain (without parser) took 11767.31 ms. Allocated memory was 138.9 MB in the beginning and 445.6 MB in the end (delta: 306.7 MB). Free memory was 102.2 MB in the beginning and 250.8 MB in the end (delta: -148.6 MB). Peak memory consumption was 158.1 MB. Max. memory is 7.1 GB. [2020-04-18 19:53:38,504 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 19:53:38,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.85 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.2 MB in the beginning and 159.1 MB in the end (delta: -58.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-04-18 19:53:38,506 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.80 ms. Allocated memory is still 202.9 MB. Free memory was 159.1 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 19:53:38,506 INFO L168 Benchmark]: Boogie Preprocessor took 27.82 ms. Allocated memory is still 202.9 MB. Free memory was 157.2 MB in the beginning and 155.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 19:53:38,507 INFO L168 Benchmark]: RCFGBuilder took 456.04 ms. Allocated memory is still 202.9 MB. Free memory was 155.2 MB in the beginning and 133.8 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-04-18 19:53:38,508 INFO L168 Benchmark]: TraceAbstraction took 10518.89 ms. Allocated memory was 202.9 MB in the beginning and 445.6 MB in the end (delta: 242.7 MB). Free memory was 133.1 MB in the beginning and 250.8 MB in the end (delta: -117.7 MB). Peak memory consumption was 125.1 MB. Max. memory is 7.1 GB. [2020-04-18 19:53:38,518 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 695.85 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.2 MB in the beginning and 159.1 MB in the end (delta: -58.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.80 ms. Allocated memory is still 202.9 MB. Free memory was 159.1 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.82 ms. Allocated memory is still 202.9 MB. Free memory was 157.2 MB in the beginning and 155.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 456.04 ms. Allocated memory is still 202.9 MB. Free memory was 155.2 MB in the beginning and 133.8 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10518.89 ms. Allocated memory was 202.9 MB in the beginning and 445.6 MB in the end (delta: 242.7 MB). Free memory was 133.1 MB in the beginning and 250.8 MB in the end (delta: -117.7 MB). Peak memory consumption was 125.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 520 SDtfs, 1447 SDslu, 2534 SDs, 0 SdLazy, 528 SolverSat, 157 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 769 GetRequests, 600 SyntacticMatches, 1 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4060 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7268occurred 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: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...