/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-12 00:14:25,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-12 00:14:25,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-12 00:14:25,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-12 00:14:25,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-12 00:14:25,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-12 00:14:25,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-12 00:14:25,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-12 00:14:25,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-12 00:14:25,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-12 00:14:25,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-12 00:14:25,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-12 00:14:25,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-12 00:14:25,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-12 00:14:25,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-12 00:14:25,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-12 00:14:25,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-12 00:14:25,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-12 00:14:25,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-12 00:14:25,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-12 00:14:25,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-12 00:14:25,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-12 00:14:25,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-12 00:14:25,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-12 00:14:25,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-12 00:14:25,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-12 00:14:25,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-12 00:14:25,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-12 00:14:25,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-12 00:14:25,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-12 00:14:25,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-12 00:14:25,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-12 00:14:25,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-12 00:14:25,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-12 00:14:25,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-12 00:14:25,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-12 00:14:25,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-12 00:14:25,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-12 00:14:25,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-12 00:14:25,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-12 00:14:25,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-12 00:14:25,538 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-12 00:14:25,584 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-12 00:14:25,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-12 00:14:25,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-12 00:14:25,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-12 00:14:25,590 INFO L138 SettingsManager]: * Use SBE=true [2020-09-12 00:14:25,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-12 00:14:25,591 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-12 00:14:25,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-12 00:14:25,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-12 00:14:25,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-12 00:14:25,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-12 00:14:25,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-12 00:14:25,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-12 00:14:25,593 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-12 00:14:25,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-12 00:14:25,594 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-12 00:14:25,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-12 00:14:25,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-12 00:14:25,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-12 00:14:25,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-12 00:14:25,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-12 00:14:25,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-12 00:14:25,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-12 00:14:25,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-12 00:14:25,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-12 00:14:25,596 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-12 00:14:25,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-12 00:14:25,596 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-12 00:14:25,596 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-12 00:14:25,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-12 00:14:25,597 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-12 00:14:26,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-12 00:14:26,060 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-12 00:14:26,064 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-12 00:14:26,068 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-12 00:14:26,069 INFO L275 PluginConnector]: CDTParser initialized [2020-09-12 00:14:26,070 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2020-09-12 00:14:26,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/699b40e57/ba16539786104202a942cc195f5d8355/FLAG362e5f0f9 [2020-09-12 00:14:26,751 INFO L306 CDTParser]: Found 1 translation units. [2020-09-12 00:14:26,752 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2020-09-12 00:14:26,768 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/699b40e57/ba16539786104202a942cc195f5d8355/FLAG362e5f0f9 [2020-09-12 00:14:27,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/699b40e57/ba16539786104202a942cc195f5d8355 [2020-09-12 00:14:27,038 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-12 00:14:27,044 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-12 00:14:27,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-12 00:14:27,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-12 00:14:27,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-12 00:14:27,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:14:27" (1/1) ... [2020-09-12 00:14:27,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d953c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:27, skipping insertion in model container [2020-09-12 00:14:27,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:14:27" (1/1) ... [2020-09-12 00:14:27,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-12 00:14:27,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-12 00:14:27,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-12 00:14:27,686 INFO L203 MainTranslator]: Completed pre-run [2020-09-12 00:14:27,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-12 00:14:27,823 INFO L208 MainTranslator]: Completed translation [2020-09-12 00:14:27,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:27 WrapperNode [2020-09-12 00:14:27,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-12 00:14:27,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-12 00:14:27,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-12 00:14:27,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-12 00:14:27,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:27" (1/1) ... [2020-09-12 00:14:27,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:27" (1/1) ... [2020-09-12 00:14:27,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-12 00:14:27,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-12 00:14:27,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-12 00:14:27,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-12 00:14:27,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:27" (1/1) ... [2020-09-12 00:14:27,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:27" (1/1) ... [2020-09-12 00:14:27,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:27" (1/1) ... [2020-09-12 00:14:27,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:27" (1/1) ... [2020-09-12 00:14:27,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:27" (1/1) ... [2020-09-12 00:14:27,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:27" (1/1) ... [2020-09-12 00:14:27,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:27" (1/1) ... [2020-09-12 00:14:27,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-12 00:14:27,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-12 00:14:27,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-12 00:14:27,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-12 00:14:27,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-12 00:14:28,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-12 00:14:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-12 00:14:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-12 00:14:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-12 00:14:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-12 00:14:28,002 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-12 00:14:28,002 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-12 00:14:28,002 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-12 00:14:28,002 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-12 00:14:28,002 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-12 00:14:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-12 00:14:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-12 00:14:28,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-12 00:14:28,006 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-12 00:14:28,402 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-12 00:14:28,403 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-12 00:14:28,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:14:28 BoogieIcfgContainer [2020-09-12 00:14:28,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-12 00:14:28,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-12 00:14:28,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-12 00:14:28,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-12 00:14:28,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 12:14:27" (1/3) ... [2020-09-12 00:14:28,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c5c5b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:14:28, skipping insertion in model container [2020-09-12 00:14:28,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:27" (2/3) ... [2020-09-12 00:14:28,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c5c5b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:14:28, skipping insertion in model container [2020-09-12 00:14:28,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:14:28" (3/3) ... [2020-09-12 00:14:28,418 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_pso.opt.i [2020-09-12 00:14:28,430 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-12 00:14:28,430 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-12 00:14:28,441 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-12 00:14:28,442 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-12 00:14:28,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,471 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,471 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,473 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,473 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,475 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,475 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,480 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,481 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,481 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,481 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,494 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,494 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,497 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,498 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:28,522 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-12 00:14:28,550 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-12 00:14:28,550 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-12 00:14:28,550 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-12 00:14:28,550 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-12 00:14:28,551 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-12 00:14:28,551 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-12 00:14:28,551 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-12 00:14:28,551 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-12 00:14:28,570 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-12 00:14:28,572 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-12 00:14:28,624 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-12 00:14:28,625 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-12 00:14:28,631 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. [2020-09-12 00:14:28,634 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-12 00:14:28,656 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-12 00:14:28,656 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-12 00:14:28,657 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. [2020-09-12 00:14:28,659 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-12 00:14:28,661 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-12 00:14:29,893 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-12 00:14:29,978 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-09-12 00:14:29,978 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-12 00:14:29,983 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-12 00:14:30,014 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-12 00:14:30,017 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-12 00:14:30,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-12 00:14:30,027 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:14:30,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:14:30,029 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:14:30,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:14:30,036 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-09-12 00:14:30,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:14:30,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079168518] [2020-09-12 00:14:30,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:14:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:14:30,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:14:30,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079168518] [2020-09-12 00:14:30,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:14:30,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-12 00:14:30,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1672466948] [2020-09-12 00:14:30,290 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:14:30,294 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:14:30,310 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-12 00:14:30,310 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:14:30,313 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:14:30,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-12 00:14:30,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:14:30,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-12 00:14:30,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-12 00:14:30,335 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-12 00:14:30,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:14:30,361 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-12 00:14:30,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-12 00:14:30,366 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-12 00:14:30,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:14:30,387 INFO L225 Difference]: With dead ends: 362 [2020-09-12 00:14:30,388 INFO L226 Difference]: Without dead ends: 298 [2020-09-12 00:14:30,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-12 00:14:30,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-12 00:14:30,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-12 00:14:30,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-12 00:14:30,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-12 00:14:30,477 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-12 00:14:30,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:14:30,479 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-12 00:14:30,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-12 00:14:30,479 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-12 00:14:30,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-12 00:14:30,481 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:14:30,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:14:30,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-12 00:14:30,482 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:14:30,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:14:30,482 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-09-12 00:14:30,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:14:30,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509295880] [2020-09-12 00:14:30,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:14:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:14:30,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:14:30,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509295880] [2020-09-12 00:14:30,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:14:30,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-12 00:14:30,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1456419730] [2020-09-12 00:14:30,614 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:14:30,615 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:14:30,617 INFO L274 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-09-12 00:14:30,617 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:14:30,617 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:14:30,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-12 00:14:30,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:14:30,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-12 00:14:30,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-12 00:14:30,620 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-09-12 00:14:30,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:14:30,660 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-09-12 00:14:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-12 00:14:30,661 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-12 00:14:30,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:14:30,664 INFO L225 Difference]: With dead ends: 330 [2020-09-12 00:14:30,665 INFO L226 Difference]: Without dead ends: 266 [2020-09-12 00:14:30,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:14:30,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-12 00:14:30,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-09-12 00:14:30,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-12 00:14:30,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-09-12 00:14:30,690 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-09-12 00:14:30,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:14:30,691 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-09-12 00:14:30,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-12 00:14:30,691 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-09-12 00:14:30,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-12 00:14:30,696 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:14:30,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:14:30,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-12 00:14:30,696 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:14:30,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:14:30,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1226466257, now seen corresponding path program 1 times [2020-09-12 00:14:30,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:14:30,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814832600] [2020-09-12 00:14:30,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:14:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:14:30,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:14:30,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814832600] [2020-09-12 00:14:30,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:14:30,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-12 00:14:30,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [871583270] [2020-09-12 00:14:30,844 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:14:30,845 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:14:30,847 INFO L274 McrAutomatonBuilder]: Finished intersection with 14 states and 16 transitions. [2020-09-12 00:14:30,847 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:14:30,882 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:14:30,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-12 00:14:30,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:14:30,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-12 00:14:30,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-12 00:14:30,884 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 4 states. [2020-09-12 00:14:30,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:14:30,908 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-09-12 00:14:30,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-12 00:14:30,909 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-12 00:14:30,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:14:30,911 INFO L225 Difference]: With dead ends: 290 [2020-09-12 00:14:30,912 INFO L226 Difference]: Without dead ends: 242 [2020-09-12 00:14:30,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:14:30,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-09-12 00:14:30,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-09-12 00:14:30,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-09-12 00:14:30,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-09-12 00:14:30,929 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-09-12 00:14:30,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:14:30,929 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-09-12 00:14:30,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-12 00:14:30,930 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-09-12 00:14:30,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-12 00:14:30,931 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:14:30,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:14:30,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-12 00:14:30,932 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:14:30,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:14:30,932 INFO L82 PathProgramCache]: Analyzing trace with hash -635370963, now seen corresponding path program 1 times [2020-09-12 00:14:30,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:14:30,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111207533] [2020-09-12 00:14:30,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:14:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:14:31,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:14:31,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111207533] [2020-09-12 00:14:31,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:14:31,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-12 00:14:31,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1953506008] [2020-09-12 00:14:31,055 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:14:31,056 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:14:31,058 INFO L274 McrAutomatonBuilder]: Finished intersection with 18 states and 24 transitions. [2020-09-12 00:14:31,059 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:14:31,111 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:14:31,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-12 00:14:31,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:14:31,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-12 00:14:31,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:14:31,113 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 5 states. [2020-09-12 00:14:31,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:14:31,164 INFO L93 Difference]: Finished difference Result 302 states and 803 transitions. [2020-09-12 00:14:31,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-12 00:14:31,165 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-09-12 00:14:31,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:14:31,167 INFO L225 Difference]: With dead ends: 302 [2020-09-12 00:14:31,167 INFO L226 Difference]: Without dead ends: 146 [2020-09-12 00:14:31,167 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-12 00:14:31,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-12 00:14:31,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-09-12 00:14:31,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-12 00:14:31,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-09-12 00:14:31,175 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 11 [2020-09-12 00:14:31,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:14:31,175 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-09-12 00:14:31,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-12 00:14:31,175 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-09-12 00:14:31,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-12 00:14:31,177 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:14:31,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:14:31,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-12 00:14:31,178 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:14:31,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:14:31,178 INFO L82 PathProgramCache]: Analyzing trace with hash 257080554, now seen corresponding path program 1 times [2020-09-12 00:14:31,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:14:31,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75192211] [2020-09-12 00:14:31,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:14:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:14:31,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:14:31,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75192211] [2020-09-12 00:14:31,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:14:31,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-12 00:14:31,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [142692249] [2020-09-12 00:14:31,295 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:14:31,300 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:14:31,304 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 56 transitions. [2020-09-12 00:14:31,304 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:14:31,518 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:14:31,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-12 00:14:31,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:14:31,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-12 00:14:31,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:14:31,519 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-09-12 00:14:31,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:14:31,574 INFO L93 Difference]: Finished difference Result 176 states and 423 transitions. [2020-09-12 00:14:31,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-12 00:14:31,574 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-12 00:14:31,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:14:31,575 INFO L225 Difference]: With dead ends: 176 [2020-09-12 00:14:31,576 INFO L226 Difference]: Without dead ends: 98 [2020-09-12 00:14:31,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-12 00:14:31,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-12 00:14:31,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-09-12 00:14:31,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-12 00:14:31,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 218 transitions. [2020-09-12 00:14:31,580 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 218 transitions. Word has length 13 [2020-09-12 00:14:31,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:14:31,581 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 218 transitions. [2020-09-12 00:14:31,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-12 00:14:31,581 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 218 transitions. [2020-09-12 00:14:31,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-12 00:14:31,582 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:14:31,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:14:31,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-12 00:14:31,583 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:14:31,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:14:31,584 INFO L82 PathProgramCache]: Analyzing trace with hash -647415272, now seen corresponding path program 1 times [2020-09-12 00:14:31,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:14:31,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069724434] [2020-09-12 00:14:31,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:14:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:14:31,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:14:31,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069724434] [2020-09-12 00:14:31,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:14:31,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-12 00:14:31,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1482854062] [2020-09-12 00:14:31,658 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:14:31,659 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:14:31,663 INFO L274 McrAutomatonBuilder]: Finished intersection with 32 states and 48 transitions. [2020-09-12 00:14:31,664 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:14:31,743 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:14:31,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-12 00:14:31,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:14:31,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-12 00:14:31,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:14:31,744 INFO L87 Difference]: Start difference. First operand 98 states and 218 transitions. Second operand 5 states. [2020-09-12 00:14:31,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:14:31,796 INFO L93 Difference]: Finished difference Result 86 states and 186 transitions. [2020-09-12 00:14:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-12 00:14:31,796 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-12 00:14:31,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:14:31,797 INFO L225 Difference]: With dead ends: 86 [2020-09-12 00:14:31,797 INFO L226 Difference]: Without dead ends: 0 [2020-09-12 00:14:31,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-12 00:14:31,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-12 00:14:31,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-12 00:14:31,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-12 00:14:31,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-12 00:14:31,799 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-09-12 00:14:31,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:14:31,799 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-12 00:14:31,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-12 00:14:31,799 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-12 00:14:31,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-12 00:14:31,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-12 00:14:31,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 12:14:31 BasicIcfg [2020-09-12 00:14:31,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-12 00:14:31,806 INFO L168 Benchmark]: Toolchain (without parser) took 4766.67 ms. Allocated memory was 141.0 MB in the beginning and 243.8 MB in the end (delta: 102.8 MB). Free memory was 101.6 MB in the beginning and 150.3 MB in the end (delta: -48.8 MB). Peak memory consumption was 54.0 MB. Max. memory is 7.1 GB. [2020-09-12 00:14:31,808 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-12 00:14:31,809 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.82 ms. Allocated memory was 141.0 MB in the beginning and 207.6 MB in the end (delta: 66.6 MB). Free memory was 100.9 MB in the beginning and 165.7 MB in the end (delta: -64.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-09-12 00:14:31,810 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.96 ms. Allocated memory is still 207.6 MB. Free memory was 165.7 MB in the beginning and 163.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-12 00:14:31,813 INFO L168 Benchmark]: Boogie Preprocessor took 32.04 ms. Allocated memory is still 207.6 MB. Free memory was 163.7 MB in the beginning and 161.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-12 00:14:31,814 INFO L168 Benchmark]: RCFGBuilder took 490.05 ms. Allocated memory is still 207.6 MB. Free memory was 161.8 MB in the beginning and 139.5 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-09-12 00:14:31,814 INFO L168 Benchmark]: TraceAbstraction took 3394.43 ms. Allocated memory was 207.6 MB in the beginning and 243.8 MB in the end (delta: 36.2 MB). Free memory was 138.9 MB in the beginning and 150.3 MB in the end (delta: -11.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-09-12 00:14:31,823 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 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 776.82 ms. Allocated memory was 141.0 MB in the beginning and 207.6 MB in the end (delta: 66.6 MB). Free memory was 100.9 MB in the beginning and 165.7 MB in the end (delta: -64.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.96 ms. Allocated memory is still 207.6 MB. Free memory was 165.7 MB in the beginning and 163.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.04 ms. Allocated memory is still 207.6 MB. Free memory was 163.7 MB in the beginning and 161.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 490.05 ms. Allocated memory is still 207.6 MB. Free memory was 161.8 MB in the beginning and 139.5 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3394.43 ms. Allocated memory was 207.6 MB in the beginning and 243.8 MB in the end (delta: 36.2 MB). Free memory was 138.9 MB in the beginning and 150.3 MB in the end (delta: -11.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 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: 3.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 133 SDtfs, 129 SDslu, 169 SDs, 0 SdLazy, 40 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 2035 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...