/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-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 15:02:18,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 15:02:18,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 15:02:18,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 15:02:18,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 15:02:18,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 15:02:18,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 15:02:18,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 15:02:18,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 15:02:18,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 15:02:18,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 15:02:18,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 15:02:18,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 15:02:18,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 15:02:18,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 15:02:18,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 15:02:18,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 15:02:18,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 15:02:18,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 15:02:18,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 15:02:18,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 15:02:18,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 15:02:18,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 15:02:18,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 15:02:18,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 15:02:18,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 15:02:18,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 15:02:18,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 15:02:18,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 15:02:18,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 15:02:18,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 15:02:18,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 15:02:18,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 15:02:18,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 15:02:18,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 15:02:18,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 15:02:18,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 15:02:18,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 15:02:18,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 15:02:18,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 15:02:18,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 15:02:18,442 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-McrStrategy.epf [2020-04-18 15:02:18,459 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 15:02:18,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 15:02:18,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 15:02:18,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 15:02:18,461 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 15:02:18,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 15:02:18,461 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 15:02:18,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 15:02:18,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 15:02:18,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 15:02:18,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 15:02:18,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 15:02:18,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 15:02:18,463 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 15:02:18,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 15:02:18,464 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 15:02:18,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 15:02:18,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 15:02:18,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 15:02:18,465 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 15:02:18,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 15:02:18,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 15:02:18,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 15:02:18,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 15:02:18,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 15:02:18,466 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 15:02:18,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 15:02:18,466 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 15:02:18,466 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 15:02:18,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 15:02:18,467 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 15:02:18,733 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 15:02:18,755 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 15:02:18,759 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 15:02:18,760 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 15:02:18,761 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 15:02:18,762 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2020-04-18 15:02:18,835 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/216f3ec99/f62d94329b1347159de08cf53198d8d9/FLAGb8bf15085 [2020-04-18 15:02:19,361 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 15:02:19,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2020-04-18 15:02:19,379 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/216f3ec99/f62d94329b1347159de08cf53198d8d9/FLAGb8bf15085 [2020-04-18 15:02:19,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/216f3ec99/f62d94329b1347159de08cf53198d8d9 [2020-04-18 15:02:19,673 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 15:02:19,694 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 15:02:19,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 15:02:19,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 15:02:19,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 15:02:19,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:02:19" (1/1) ... [2020-04-18 15:02:19,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e69f865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:02:19, skipping insertion in model container [2020-04-18 15:02:19,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:02:19" (1/1) ... [2020-04-18 15:02:19,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 15:02:19,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 15:02:20,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:02:20,220 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 15:02:20,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:02:20,390 INFO L208 MainTranslator]: Completed translation [2020-04-18 15:02:20,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:02:20 WrapperNode [2020-04-18 15:02:20,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 15:02:20,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 15:02:20,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 15:02:20,393 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 15:02:20,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:02:20" (1/1) ... [2020-04-18 15:02:20,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:02:20" (1/1) ... [2020-04-18 15:02:20,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 15:02:20,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 15:02:20,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 15:02:20,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 15:02:20,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:02:20" (1/1) ... [2020-04-18 15:02:20,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:02:20" (1/1) ... [2020-04-18 15:02:20,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:02:20" (1/1) ... [2020-04-18 15:02:20,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:02:20" (1/1) ... [2020-04-18 15:02:20,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:02:20" (1/1) ... [2020-04-18 15:02:20,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:02:20" (1/1) ... [2020-04-18 15:02:20,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:02:20" (1/1) ... [2020-04-18 15:02:20,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 15:02:20,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 15:02:20,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 15:02:20,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 15:02:20,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:02:20" (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 [2020-04-18 15:02:20,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 15:02:20,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 15:02:20,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 15:02:20,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 15:02:20,548 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 15:02:20,548 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 15:02:20,548 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 15:02:20,548 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 15:02:20,548 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 15:02:20,549 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 15:02:20,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 15:02:20,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 15:02:20,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 15:02:20,551 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 15:02:20,975 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 15:02:20,975 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 15:02:20,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:02:20 BoogieIcfgContainer [2020-04-18 15:02:20,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 15:02:20,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 15:02:20,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 15:02:20,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 15:02:20,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:02:19" (1/3) ... [2020-04-18 15:02:20,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532c9e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:02:20, skipping insertion in model container [2020-04-18 15:02:20,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:02:20" (2/3) ... [2020-04-18 15:02:20,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532c9e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:02:20, skipping insertion in model container [2020-04-18 15:02:20,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:02:20" (3/3) ... [2020-04-18 15:02:20,988 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_tso.opt.i [2020-04-18 15:02:21,002 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 15:02:21,003 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 15:02:21,011 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 15:02:21,013 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 15:02:21,037 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,038 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,038 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,039 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,039 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,040 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,040 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,040 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,041 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,041 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,041 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,042 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,042 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,042 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,042 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,043 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,043 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,043 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,048 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,048 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,049 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,049 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,055 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,055 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,056 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,056 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,063 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,064 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,064 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,064 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:02:21,080 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 15:02:21,102 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:02:21,103 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:02:21,103 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:02:21,103 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:02:21,103 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:02:21,103 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:02:21,104 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:02:21,104 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:02:21,120 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-04-18 15:02:21,123 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 15:02:21,182 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-18 15:02:21,182 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:02:21,189 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 15:02:21,193 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 15:02:21,218 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-18 15:02:21,218 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:02:21,219 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 15:02:21,221 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-18 15:02:21,222 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:02:22,523 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-18 15:02:22,642 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-04-18 15:02:22,642 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-04-18 15:02:22,648 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-04-18 15:02:22,688 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-04-18 15:02:22,691 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-04-18 15:02:22,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:02:22,706 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:02:22,707 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:02:22,707 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:02:22,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:02:22,714 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-04-18 15:02:22,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:02:22,722 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [213512040] [2020-04-18 15:02:22,738 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:02:22,751 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 15:02:22,753 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-04-18 15:02:22,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:02:22,753 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:02:22,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:02:22,754 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 2 times [2020-04-18 15:02:22,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:02:22,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247725382] [2020-04-18 15:02:22,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:02:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:02:22,928 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 15:02:22,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247725382] [2020-04-18 15:02:22,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:02:22,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:02:22,932 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:02:22,932 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:02:22,935 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 15:02:22,935 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:02:22,939 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:02:22,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 15:02:22,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:02:22,945 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 2 states. [2020-04-18 15:02:22,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:02:22,949 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2020-04-18 15:02:22,949 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-04-18 15:02:22,949 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:02:22,950 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [213512040] [2020-04-18 15:02:22,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:02:22,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:02:22,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [213512040] [2020-04-18 15:02:22,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 15:02:22,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:02:22,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 15:02:22,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:02:22,958 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-04-18 15:02:22,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:02:22,980 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-04-18 15:02:22,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 15:02:22,981 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-04-18 15:02:22,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:02:22,998 INFO L225 Difference]: With dead ends: 362 [2020-04-18 15:02:22,998 INFO L226 Difference]: Without dead ends: 298 [2020-04-18 15:02:22,999 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:02:23,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-04-18 15:02:23,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-04-18 15:02:23,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-04-18 15:02:23,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-04-18 15:02:23,077 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-04-18 15:02:23,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:02:23,078 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-04-18 15:02:23,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 15:02:23,078 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-04-18 15:02:23,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:02:23,080 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:02:23,080 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:02:23,081 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:02:23,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:02:23,081 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-04-18 15:02:23,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:02:23,082 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [86827119] [2020-04-18 15:02:23,082 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:02:23,083 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 15:02:23,083 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-04-18 15:02:23,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:02:23,084 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:02:23,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:02:23,084 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 2 times [2020-04-18 15:02:23,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:02:23,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742299996] [2020-04-18 15:02:23,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:02:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:02:23,232 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 15:02:23,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742299996] [2020-04-18 15:02:23,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:02:23,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:02:23,233 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:02:23,234 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:02:23,235 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 15:02:23,235 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:02:23,249 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:02:23,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:02:23,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:02:23,250 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-04-18 15:02:23,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:02:23,263 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-04-18 15:02:23,263 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-04-18 15:02:23,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:02:23,264 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [86827119] [2020-04-18 15:02:23,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:02:23,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:02:23,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [86827119] [2020-04-18 15:02:23,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:02:23,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:02:23,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:02:23,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:02:23,266 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-04-18 15:02:23,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:02:23,294 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-04-18 15:02:23,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:02:23,295 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-18 15:02:23,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:02:23,299 INFO L225 Difference]: With dead ends: 330 [2020-04-18 15:02:23,299 INFO L226 Difference]: Without dead ends: 266 [2020-04-18 15:02:23,300 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:02:23,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-04-18 15:02:23,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-04-18 15:02:23,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-04-18 15:02:23,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-04-18 15:02:23,324 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-04-18 15:02:23,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:02:23,324 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-04-18 15:02:23,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:02:23,325 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-04-18 15:02:23,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 15:02:23,326 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:02:23,326 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:02:23,327 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:02:23,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:02:23,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 1 times [2020-04-18 15:02:23,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:02:23,328 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [142150296] [2020-04-18 15:02:23,328 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:02:23,329 INFO L259 McrAutomatonBuilder]: Finished intersection with 14 states and 16 transitions. [2020-04-18 15:02:23,329 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-04-18 15:02:23,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 15:02:23,330 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:02:23,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:02:23,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 2 times [2020-04-18 15:02:23,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:02:23,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370085531] [2020-04-18 15:02:23,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:02:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:02:23,411 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 15:02:23,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370085531] [2020-04-18 15:02:23,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:02:23,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:02:23,413 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:02:23,414 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:02:23,415 INFO L259 McrAutomatonBuilder]: Finished intersection with 12 states and 12 transitions. [2020-04-18 15:02:23,415 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:02:23,425 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:02:23,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:02:23,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:02:23,426 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2020-04-18 15:02:23,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:02:23,435 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-04-18 15:02:23,435 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-04-18 15:02:23,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:02:23,436 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [142150296] [2020-04-18 15:02:23,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:02:23,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:02:23,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [142150296] [2020-04-18 15:02:23,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:02:23,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:02:23,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:02:23,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:02:23,437 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 4 states. [2020-04-18 15:02:23,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:02:23,454 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-04-18 15:02:23,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:02:23,455 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-04-18 15:02:23,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:02:23,457 INFO L225 Difference]: With dead ends: 290 [2020-04-18 15:02:23,457 INFO L226 Difference]: Without dead ends: 242 [2020-04-18 15:02:23,458 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:02:23,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-04-18 15:02:23,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-04-18 15:02:23,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-04-18 15:02:23,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-04-18 15:02:23,475 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-04-18 15:02:23,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:02:23,476 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-04-18 15:02:23,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:02:23,476 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-04-18 15:02:23,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 15:02:23,480 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:02:23,481 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:02:23,481 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:02:23,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:02:23,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 1 times [2020-04-18 15:02:23,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:02:23,485 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1176070815] [2020-04-18 15:02:23,485 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:02:23,486 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 42 transitions. [2020-04-18 15:02:23,486 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-04-18 15:02:23,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 15:02:23,489 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:02:23,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:02:23,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 2 times [2020-04-18 15:02:23,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:02:23,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818377213] [2020-04-18 15:02:23,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:02:23,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:02:23,576 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 15:02:23,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818377213] [2020-04-18 15:02:23,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:02:23,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:02:23,580 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:02:23,581 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:02:23,584 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-04-18 15:02:23,584 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:02:23,638 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:02:23,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:02:23,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-04-18 15:02:23,639 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 6 states. [2020-04-18 15:02:23,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:02:23,666 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2020-04-18 15:02:23,666 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 42 transitions. [2020-04-18 15:02:23,667 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:02:23,667 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1176070815] [2020-04-18 15:02:23,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:02:23,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:02:23,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1176070815] [2020-04-18 15:02:23,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 15:02:23,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:02:23,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:02:23,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 15:02:23,670 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 6 states. [2020-04-18 15:02:23,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:02:23,707 INFO L93 Difference]: Finished difference Result 302 states and 815 transitions. [2020-04-18 15:02:23,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 15:02:23,707 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-04-18 15:02:23,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:02:23,709 INFO L225 Difference]: With dead ends: 302 [2020-04-18 15:02:23,709 INFO L226 Difference]: Without dead ends: 140 [2020-04-18 15:02:23,709 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-04-18 15:02:23,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-04-18 15:02:23,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-04-18 15:02:23,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-04-18 15:02:23,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 354 transitions. [2020-04-18 15:02:23,718 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 354 transitions. Word has length 11 [2020-04-18 15:02:23,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:02:23,718 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 354 transitions. [2020-04-18 15:02:23,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 15:02:23,718 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 354 transitions. [2020-04-18 15:02:23,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:02:23,719 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:02:23,719 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:02:23,720 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:02:23,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:02:23,720 INFO L82 PathProgramCache]: Analyzing trace with hash -234537171, now seen corresponding path program 1 times [2020-04-18 15:02:23,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:02:23,721 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1902954949] [2020-04-18 15:02:23,721 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:02:23,722 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 60 transitions. [2020-04-18 15:02:23,722 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-04-18 15:02:23,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:02:23,723 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:02:23,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:02:23,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1046934219, now seen corresponding path program 2 times [2020-04-18 15:02:23,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:02:23,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961608198] [2020-04-18 15:02:23,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:02:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:02:23,828 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 15:02:23,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961608198] [2020-04-18 15:02:23,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:02:23,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:02:23,830 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:02:23,831 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:02:23,834 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 35 transitions. [2020-04-18 15:02:23,835 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:02:23,842 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:02:23,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:02:23,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:02:23,843 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 4 states. [2020-04-18 15:02:23,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:02:23,857 INFO L93 Difference]: Finished difference Result 34 states and 60 transitions. [2020-04-18 15:02:23,857 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 60 transitions. [2020-04-18 15:02:23,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:02:23,858 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1902954949] [2020-04-18 15:02:23,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:02:23,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:02:23,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1902954949] [2020-04-18 15:02:23,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:02:23,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:02:23,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:02:23,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:02:23,860 INFO L87 Difference]: Start difference. First operand 140 states and 354 transitions. Second operand 4 states. [2020-04-18 15:02:23,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:02:23,873 INFO L93 Difference]: Finished difference Result 152 states and 368 transitions. [2020-04-18 15:02:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:02:23,875 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-18 15:02:23,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:02:23,876 INFO L225 Difference]: With dead ends: 152 [2020-04-18 15:02:23,876 INFO L226 Difference]: Without dead ends: 128 [2020-04-18 15:02:23,877 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:02:23,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-04-18 15:02:23,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-04-18 15:02:23,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-04-18 15:02:23,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 316 transitions. [2020-04-18 15:02:23,884 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 316 transitions. Word has length 12 [2020-04-18 15:02:23,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:02:23,889 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 316 transitions. [2020-04-18 15:02:23,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:02:23,889 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 316 transitions. [2020-04-18 15:02:23,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 15:02:23,895 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:02:23,895 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:02:23,895 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:02:23,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:02:23,896 INFO L82 PathProgramCache]: Analyzing trace with hash -762243594, now seen corresponding path program 1 times [2020-04-18 15:02:23,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:02:23,899 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [265901861] [2020-04-18 15:02:23,900 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:02:23,902 INFO L259 McrAutomatonBuilder]: Finished intersection with 62 states and 140 transitions. [2020-04-18 15:02:23,903 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2020-04-18 15:02:23,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 15:02:23,904 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:02:23,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:02:23,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1574640642, now seen corresponding path program 2 times [2020-04-18 15:02:23,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:02:23,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077596463] [2020-04-18 15:02:23,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:02:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:02:24,000 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 15:02:24,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077596463] [2020-04-18 15:02:24,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:02:24,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:02:24,002 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:02:24,003 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:02:24,008 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 70 transitions. [2020-04-18 15:02:24,008 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:02:24,098 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 7 times. [2020-04-18 15:02:24,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:02:24,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:02:24,099 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 7 states. [2020-04-18 15:02:24,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:02:24,154 INFO L93 Difference]: Finished difference Result 72 states and 153 transitions. [2020-04-18 15:02:24,154 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 153 transitions. [2020-04-18 15:02:24,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 15:02:24,155 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:02:24,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:02:24,156 INFO L82 PathProgramCache]: Analyzing trace with hash -762243594, now seen corresponding path program 3 times [2020-04-18 15:02:24,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:02:24,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447643460] [2020-04-18 15:02:24,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:02:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:02:24,205 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 15:02:24,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447643460] [2020-04-18 15:02:24,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:02:24,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:02:24,207 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:02:24,208 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:02:24,212 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 40 transitions. [2020-04-18 15:02:24,212 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:02:24,240 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:02:24,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:02:24,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-04-18 15:02:24,241 INFO L87 Difference]: Start difference. First operand 72 states and 153 transitions. Second operand 5 states. [2020-04-18 15:02:24,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:02:24,270 INFO L93 Difference]: Finished difference Result 72 states and 153 transitions. [2020-04-18 15:02:24,270 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 153 transitions. [2020-04-18 15:02:24,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:02:24,271 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [265901861] [2020-04-18 15:02:24,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:02:24,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:02:24,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [265901861] [2020-04-18 15:02:24,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 15:02:24,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:02:24,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 15:02:24,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-04-18 15:02:24,273 INFO L87 Difference]: Start difference. First operand 128 states and 316 transitions. Second operand 9 states. [2020-04-18 15:02:24,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:02:24,353 INFO L93 Difference]: Finished difference Result 170 states and 409 transitions. [2020-04-18 15:02:24,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 15:02:24,353 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2020-04-18 15:02:24,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:02:24,355 INFO L225 Difference]: With dead ends: 170 [2020-04-18 15:02:24,355 INFO L226 Difference]: Without dead ends: 80 [2020-04-18 15:02:24,356 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-04-18 15:02:24,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-04-18 15:02:24,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-04-18 15:02:24,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-04-18 15:02:24,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 176 transitions. [2020-04-18 15:02:24,359 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 176 transitions. Word has length 13 [2020-04-18 15:02:24,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:02:24,360 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 176 transitions. [2020-04-18 15:02:24,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 15:02:24,360 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 176 transitions. [2020-04-18 15:02:24,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 15:02:24,360 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:02:24,361 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:02:24,361 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:02:24,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:02:24,361 INFO L82 PathProgramCache]: Analyzing trace with hash -627503362, now seen corresponding path program 1 times [2020-04-18 15:02:24,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:02:24,362 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2086450410] [2020-04-18 15:02:24,363 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:02:24,366 INFO L259 McrAutomatonBuilder]: Finished intersection with 90 states and 220 transitions. [2020-04-18 15:02:24,367 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-04-18 15:02:24,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 15:02:24,368 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:02:24,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:02:24,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1571173060, now seen corresponding path program 2 times [2020-04-18 15:02:24,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:02:24,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028082131] [2020-04-18 15:02:24,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:02:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:02:24,435 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 15:02:24,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028082131] [2020-04-18 15:02:24,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:02:24,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:02:24,436 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:02:24,437 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:02:24,447 INFO L259 McrAutomatonBuilder]: Finished intersection with 48 states and 93 transitions. [2020-04-18 15:02:24,447 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:02:24,464 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 15:02:24,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:02:24,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:02:24,465 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 5 states. [2020-04-18 15:02:24,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:02:24,486 INFO L93 Difference]: Finished difference Result 90 states and 220 transitions. [2020-04-18 15:02:24,486 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 220 transitions. [2020-04-18 15:02:24,487 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:02:24,487 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2086450410] [2020-04-18 15:02:24,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:02:24,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:02:24,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2086450410] [2020-04-18 15:02:24,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 15:02:24,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:02:24,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:02:24,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:02:24,489 INFO L87 Difference]: Start difference. First operand 80 states and 176 transitions. Second operand 5 states. [2020-04-18 15:02:24,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:02:24,514 INFO L93 Difference]: Finished difference Result 68 states and 144 transitions. [2020-04-18 15:02:24,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 15:02:24,514 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-04-18 15:02:24,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:02:24,515 INFO L225 Difference]: With dead ends: 68 [2020-04-18 15:02:24,515 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 15:02:24,515 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 15:02:24,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 15:02:24,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 15:02:24,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 15:02:24,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 15:02:24,516 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-04-18 15:02:24,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:02:24,516 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 15:02:24,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 15:02:24,517 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 15:02:24,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:02:24,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:02:24 BasicIcfg [2020-04-18 15:02:24,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 15:02:24,523 INFO L168 Benchmark]: Toolchain (without parser) took 4847.72 ms. Allocated memory was 138.4 MB in the beginning and 246.9 MB in the end (delta: 108.5 MB). Free memory was 101.3 MB in the beginning and 147.1 MB in the end (delta: -45.8 MB). Peak memory consumption was 62.7 MB. Max. memory is 7.1 GB. [2020-04-18 15:02:24,523 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 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. [2020-04-18 15:02:24,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.95 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 99.3 MB in the beginning and 160.4 MB in the end (delta: -61.0 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2020-04-18 15:02:24,525 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.57 ms. Allocated memory is still 203.4 MB. Free memory was 160.4 MB in the beginning and 158.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-04-18 15:02:24,526 INFO L168 Benchmark]: Boogie Preprocessor took 30.19 ms. Allocated memory is still 203.4 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. [2020-04-18 15:02:24,526 INFO L168 Benchmark]: RCFGBuilder took 501.05 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 134.0 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-04-18 15:02:24,527 INFO L168 Benchmark]: TraceAbstraction took 3539.87 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 134.0 MB in the beginning and 147.1 MB in the end (delta: -13.1 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-04-18 15:02:24,531 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 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 695.95 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 99.3 MB in the beginning and 160.4 MB in the end (delta: -61.0 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.57 ms. Allocated memory is still 203.4 MB. Free memory was 160.4 MB in the beginning and 158.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.19 ms. Allocated memory is still 203.4 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 501.05 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 134.0 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3539.87 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 134.0 MB in the beginning and 147.1 MB in the end (delta: -13.1 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 668 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2463 CheckedPairsTotal, 57 TotalNumberOfCompositions - 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 156 SDtfs, 184 SDslu, 260 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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: 0.1s AutomataMinimizationTime, 7 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...