/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/safe002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 22:44:40,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 22:44:40,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 22:44:40,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 22:44:40,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 22:44:40,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 22:44:40,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 22:44:40,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 22:44:40,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 22:44:40,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 22:44:40,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 22:44:40,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 22:44:40,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 22:44:40,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 22:44:40,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 22:44:40,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 22:44:40,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 22:44:40,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 22:44:40,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 22:44:40,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 22:44:40,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 22:44:40,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 22:44:40,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 22:44:40,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 22:44:40,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-15 22:44:40,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 22:44:40,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 22:44:40,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 22:44:40,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 22:44:40,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 22:44:40,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 22:44:40,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 22:44:40,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 22:44:40,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 22:44:40,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 22:44:40,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 22:44:40,359 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 [2020-09-15 22:44:40,397 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 22:44:40,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 22:44:40,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 22:44:40,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 22:44:40,399 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 22:44:40,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 22:44:40,399 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 22:44:40,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 22:44:40,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 22:44:40,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 22:44:40,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 22:44:40,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 22:44:40,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 22:44:40,400 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 22:44:40,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 22:44:40,401 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 22:44:40,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 22:44:40,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 22:44:40,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 22:44:40,402 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 22:44:40,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 22:44:40,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 22:44:40,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 22:44:40,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-15 22:44:40,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 22:44:40,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 22:44:40,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 22:44:40,403 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-15 22:44:40,404 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-15 22:44:40,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 22:44:40,404 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-15 22:44:40,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 22:44:40,849 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 22:44:40,853 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 22:44:40,854 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 22:44:40,855 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 22:44:40,856 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i [2020-09-15 22:44:40,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ca589876/55479dc0cb094f59abe5b87ab7ba95ef/FLAG1bd2cf3d2 [2020-09-15 22:44:41,547 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 22:44:41,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i [2020-09-15 22:44:41,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ca589876/55479dc0cb094f59abe5b87ab7ba95ef/FLAG1bd2cf3d2 [2020-09-15 22:44:41,812 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ca589876/55479dc0cb094f59abe5b87ab7ba95ef [2020-09-15 22:44:41,825 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 22:44:41,831 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 22:44:41,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 22:44:41,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 22:44:41,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 22:44:41,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:44:41" (1/1) ... [2020-09-15 22:44:41,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@620aac89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:44:41, skipping insertion in model container [2020-09-15 22:44:41,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:44:41" (1/1) ... [2020-09-15 22:44:41,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 22:44:41,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 22:44:42,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 22:44:42,411 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 22:44:42,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 22:44:42,564 INFO L208 MainTranslator]: Completed translation [2020-09-15 22:44:42,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:44:42 WrapperNode [2020-09-15 22:44:42,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 22:44:42,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 22:44:42,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 22:44:42,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 22:44:42,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:44:42" (1/1) ... [2020-09-15 22:44:42,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:44:42" (1/1) ... [2020-09-15 22:44:42,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 22:44:42,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 22:44:42,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 22:44:42,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 22:44:42,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:44:42" (1/1) ... [2020-09-15 22:44:42,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:44:42" (1/1) ... [2020-09-15 22:44:42,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:44:42" (1/1) ... [2020-09-15 22:44:42,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:44:42" (1/1) ... [2020-09-15 22:44:42,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:44:42" (1/1) ... [2020-09-15 22:44:42,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:44:42" (1/1) ... [2020-09-15 22:44:42,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:44:42" (1/1) ... [2020-09-15 22:44:42,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 22:44:42,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 22:44:42,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 22:44:42,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 22:44:42,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:44:42" (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 [2020-09-15 22:44:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 22:44:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-15 22:44:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 22:44:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 22:44:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-15 22:44:42,725 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-15 22:44:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-15 22:44:42,725 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-15 22:44:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-15 22:44:42,725 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-15 22:44:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-15 22:44:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 22:44:42,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 22:44:42,728 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 22:44:43,091 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 22:44:43,092 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-15 22:44:43,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:44:43 BoogieIcfgContainer [2020-09-15 22:44:43,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 22:44:43,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 22:44:43,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 22:44:43,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 22:44:43,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 10:44:41" (1/3) ... [2020-09-15 22:44:43,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8c4508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:44:43, skipping insertion in model container [2020-09-15 22:44:43,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:44:42" (2/3) ... [2020-09-15 22:44:43,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8c4508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:44:43, skipping insertion in model container [2020-09-15 22:44:43,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:44:43" (3/3) ... [2020-09-15 22:44:43,107 INFO L109 eAbstractionObserver]: Analyzing ICFG safe002_tso.oepc.i [2020-09-15 22:44:43,118 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 22:44:43,119 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-15 22:44:43,127 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-15 22:44:43,128 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 22:44:43,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,160 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,161 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,161 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,162 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,162 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,162 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,162 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,163 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,163 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,163 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,164 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,164 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,164 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,165 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,165 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,165 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,170 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,171 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,171 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,171 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,183 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,183 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,183 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,186 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,186 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 22:44:43,211 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-15 22:44:43,237 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 22:44:43,237 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 22:44:43,237 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 22:44:43,238 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-15 22:44:43,238 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 22:44:43,238 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 22:44:43,238 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 22:44:43,238 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 22:44:43,255 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-09-15 22:44:43,257 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-15 22:44:43,308 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-15 22:44:43,309 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 22:44:43,315 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 22:44:43,318 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-15 22:44:43,340 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-15 22:44:43,340 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 22:44:43,341 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 22:44:43,343 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-15 22:44:43,344 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 22:44:44,916 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-09-15 22:44:44,916 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-09-15 22:44:44,921 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-15 22:44:44,950 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-15 22:44:44,952 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-15 22:44:44,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-15 22:44:44,962 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:44:44,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:44:44,964 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:44:44,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:44:44,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-09-15 22:44:44,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:44:44,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220028219] [2020-09-15 22:44:44,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:44:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:44:45,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:44:45,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220028219] [2020-09-15 22:44:45,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:44:45,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 22:44:45,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1460185160] [2020-09-15 22:44:45,240 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:44:45,243 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:44:45,258 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-15 22:44:45,258 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:44:45,260 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:44:45,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 22:44:45,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:44:45,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 22:44:45,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:44:45,283 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-15 22:44:45,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:44:45,323 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-09-15 22:44:45,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 22:44:45,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-15 22:44:45,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:44:45,343 INFO L225 Difference]: With dead ends: 282 [2020-09-15 22:44:45,344 INFO L226 Difference]: Without dead ends: 218 [2020-09-15 22:44:45,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:44:45,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-09-15 22:44:45,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-09-15 22:44:45,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-15 22:44:45,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-09-15 22:44:45,420 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-09-15 22:44:45,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:44:45,421 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-09-15 22:44:45,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 22:44:45,421 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-09-15 22:44:45,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-15 22:44:45,423 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:44:45,423 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:44:45,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 22:44:45,424 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:44:45,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:44:45,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1298976658, now seen corresponding path program 1 times [2020-09-15 22:44:45,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:44:45,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141797405] [2020-09-15 22:44:45,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:44:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:44:45,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:44:45,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141797405] [2020-09-15 22:44:45,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:44:45,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 22:44:45,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [365287081] [2020-09-15 22:44:45,524 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:44:45,525 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:44:45,531 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-09-15 22:44:45,531 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:44:45,562 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:44:45,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 22:44:45,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:44:45,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 22:44:45,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 22:44:45,567 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-09-15 22:44:45,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:44:45,612 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-09-15 22:44:45,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 22:44:45,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-15 22:44:45,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:44:45,615 INFO L225 Difference]: With dead ends: 242 [2020-09-15 22:44:45,615 INFO L226 Difference]: Without dead ends: 146 [2020-09-15 22:44:45,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 22:44:45,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-15 22:44:45,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-09-15 22:44:45,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-15 22:44:45,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-09-15 22:44:45,630 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-09-15 22:44:45,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:44:45,630 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-09-15 22:44:45,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 22:44:45,631 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-09-15 22:44:45,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-15 22:44:45,632 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:44:45,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:44:45,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 22:44:45,633 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:44:45,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:44:45,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1379708097, now seen corresponding path program 1 times [2020-09-15 22:44:45,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:44:45,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579522876] [2020-09-15 22:44:45,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:44:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:44:45,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:44:45,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579522876] [2020-09-15 22:44:45,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:44:45,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 22:44:45,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [931295439] [2020-09-15 22:44:45,704 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:44:45,705 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:44:45,707 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-09-15 22:44:45,708 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:44:45,724 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:44:45,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 22:44:45,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:44:45,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 22:44:45,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:44:45,725 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-09-15 22:44:45,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:44:45,737 INFO L93 Difference]: Finished difference Result 138 states and 336 transitions. [2020-09-15 22:44:45,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 22:44:45,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-15 22:44:45,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:44:45,740 INFO L225 Difference]: With dead ends: 138 [2020-09-15 22:44:45,740 INFO L226 Difference]: Without dead ends: 138 [2020-09-15 22:44:45,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:44:45,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-09-15 22:44:45,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-09-15 22:44:45,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-15 22:44:45,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 336 transitions. [2020-09-15 22:44:45,752 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 336 transitions. Word has length 11 [2020-09-15 22:44:45,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:44:45,752 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 336 transitions. [2020-09-15 22:44:45,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 22:44:45,753 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 336 transitions. [2020-09-15 22:44:45,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-15 22:44:45,754 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:44:45,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:44:45,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 22:44:45,755 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:44:45,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:44:45,755 INFO L82 PathProgramCache]: Analyzing trace with hash -178767453, now seen corresponding path program 1 times [2020-09-15 22:44:45,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:44:45,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127504065] [2020-09-15 22:44:45,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:44:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:44:45,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:44:45,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127504065] [2020-09-15 22:44:45,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:44:45,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 22:44:45,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2016320573] [2020-09-15 22:44:45,819 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:44:45,820 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:44:45,822 INFO L274 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-09-15 22:44:45,823 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:44:45,849 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:44:45,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 22:44:45,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:44:45,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 22:44:45,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:44:45,850 INFO L87 Difference]: Start difference. First operand 138 states and 336 transitions. Second operand 3 states. [2020-09-15 22:44:45,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:44:45,856 INFO L93 Difference]: Finished difference Result 134 states and 324 transitions. [2020-09-15 22:44:45,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 22:44:45,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-15 22:44:45,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:44:45,858 INFO L225 Difference]: With dead ends: 134 [2020-09-15 22:44:45,858 INFO L226 Difference]: Without dead ends: 134 [2020-09-15 22:44:45,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 22:44:45,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-09-15 22:44:45,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-09-15 22:44:45,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-09-15 22:44:45,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 324 transitions. [2020-09-15 22:44:45,882 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 324 transitions. Word has length 12 [2020-09-15 22:44:45,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:44:45,883 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 324 transitions. [2020-09-15 22:44:45,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 22:44:45,883 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 324 transitions. [2020-09-15 22:44:45,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-15 22:44:45,884 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:44:45,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:44:45,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 22:44:45,885 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:44:45,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:44:45,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1648184308, now seen corresponding path program 1 times [2020-09-15 22:44:45,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:44:45,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150216032] [2020-09-15 22:44:45,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:44:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:44:45,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:44:45,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150216032] [2020-09-15 22:44:45,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:44:45,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 22:44:45,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1181980527] [2020-09-15 22:44:45,952 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:44:45,953 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:44:45,957 INFO L274 McrAutomatonBuilder]: Finished intersection with 31 states and 50 transitions. [2020-09-15 22:44:45,957 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:44:46,051 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:44:46,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 22:44:46,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:44:46,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 22:44:46,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 22:44:46,052 INFO L87 Difference]: Start difference. First operand 134 states and 324 transitions. Second operand 4 states. [2020-09-15 22:44:46,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:44:46,074 INFO L93 Difference]: Finished difference Result 194 states and 466 transitions. [2020-09-15 22:44:46,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 22:44:46,075 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-15 22:44:46,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:44:46,076 INFO L225 Difference]: With dead ends: 194 [2020-09-15 22:44:46,076 INFO L226 Difference]: Without dead ends: 104 [2020-09-15 22:44:46,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 22:44:46,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-09-15 22:44:46,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-09-15 22:44:46,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-09-15 22:44:46,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 246 transitions. [2020-09-15 22:44:46,082 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 246 transitions. Word has length 13 [2020-09-15 22:44:46,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:44:46,083 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 246 transitions. [2020-09-15 22:44:46,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 22:44:46,083 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 246 transitions. [2020-09-15 22:44:46,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-15 22:44:46,084 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:44:46,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:44:46,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 22:44:46,084 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:44:46,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:44:46,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1261556210, now seen corresponding path program 2 times [2020-09-15 22:44:46,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:44:46,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820419882] [2020-09-15 22:44:46,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:44:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:44:46,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:44:46,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820419882] [2020-09-15 22:44:46,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:44:46,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 22:44:46,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [436002205] [2020-09-15 22:44:46,139 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:44:46,141 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:44:46,144 INFO L274 McrAutomatonBuilder]: Finished intersection with 27 states and 40 transitions. [2020-09-15 22:44:46,145 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:44:46,177 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:44:46,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 22:44:46,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:44:46,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 22:44:46,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 22:44:46,178 INFO L87 Difference]: Start difference. First operand 104 states and 246 transitions. Second operand 4 states. [2020-09-15 22:44:46,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:44:46,203 INFO L93 Difference]: Finished difference Result 128 states and 298 transitions. [2020-09-15 22:44:46,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 22:44:46,203 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-15 22:44:46,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:44:46,204 INFO L225 Difference]: With dead ends: 128 [2020-09-15 22:44:46,204 INFO L226 Difference]: Without dead ends: 68 [2020-09-15 22:44:46,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 22:44:46,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-15 22:44:46,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-15 22:44:46,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-15 22:44:46,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-09-15 22:44:46,208 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 13 [2020-09-15 22:44:46,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:44:46,209 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-09-15 22:44:46,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 22:44:46,209 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-09-15 22:44:46,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-15 22:44:46,210 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:44:46,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:44:46,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-15 22:44:46,211 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:44:46,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:44:46,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 3 times [2020-09-15 22:44:46,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:44:46,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557677672] [2020-09-15 22:44:46,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:44:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:44:46,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:44:46,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557677672] [2020-09-15 22:44:46,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:44:46,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 22:44:46,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1886419855] [2020-09-15 22:44:46,289 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:44:46,290 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:44:46,293 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions. [2020-09-15 22:44:46,294 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:44:46,330 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 22:44:46,345 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:44:46,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 22:44:46,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:44:46,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 22:44:46,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 22:44:46,347 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-09-15 22:44:46,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:44:46,380 INFO L93 Difference]: Finished difference Result 81 states and 157 transitions. [2020-09-15 22:44:46,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 22:44:46,381 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-15 22:44:46,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:44:46,381 INFO L225 Difference]: With dead ends: 81 [2020-09-15 22:44:46,382 INFO L226 Difference]: Without dead ends: 59 [2020-09-15 22:44:46,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 22:44:46,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-15 22:44:46,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-15 22:44:46,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-15 22:44:46,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 114 transitions. [2020-09-15 22:44:46,385 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 114 transitions. Word has length 13 [2020-09-15 22:44:46,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:44:46,386 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 114 transitions. [2020-09-15 22:44:46,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 22:44:46,386 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 114 transitions. [2020-09-15 22:44:46,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-15 22:44:46,387 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:44:46,387 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:44:46,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-15 22:44:46,388 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:44:46,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:44:46,388 INFO L82 PathProgramCache]: Analyzing trace with hash 433937672, now seen corresponding path program 1 times [2020-09-15 22:44:46,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:44:46,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895794259] [2020-09-15 22:44:46,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:44:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:44:46,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:44:46,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895794259] [2020-09-15 22:44:46,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:44:46,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 22:44:46,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [759743251] [2020-09-15 22:44:46,463 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:44:46,465 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:44:46,469 INFO L274 McrAutomatonBuilder]: Finished intersection with 27 states and 38 transitions. [2020-09-15 22:44:46,469 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:44:46,513 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3649#(<= ~__unbuffered_cnt~0 0)] [2020-09-15 22:44:46,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-15 22:44:46,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:44:46,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-15 22:44:46,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-15 22:44:46,515 INFO L87 Difference]: Start difference. First operand 59 states and 114 transitions. Second operand 6 states. [2020-09-15 22:44:46,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:44:46,558 INFO L93 Difference]: Finished difference Result 60 states and 104 transitions. [2020-09-15 22:44:46,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-15 22:44:46,558 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-09-15 22:44:46,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:44:46,559 INFO L225 Difference]: With dead ends: 60 [2020-09-15 22:44:46,559 INFO L226 Difference]: Without dead ends: 45 [2020-09-15 22:44:46,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-15 22:44:46,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-15 22:44:46,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-15 22:44:46,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-15 22:44:46,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 74 transitions. [2020-09-15 22:44:46,562 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 74 transitions. Word has length 14 [2020-09-15 22:44:46,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:44:46,562 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 74 transitions. [2020-09-15 22:44:46,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-15 22:44:46,562 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 74 transitions. [2020-09-15 22:44:46,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-15 22:44:46,563 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:44:46,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:44:46,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-15 22:44:46,563 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:44:46,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:44:46,564 INFO L82 PathProgramCache]: Analyzing trace with hash 567169455, now seen corresponding path program 1 times [2020-09-15 22:44:46,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:44:46,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097976323] [2020-09-15 22:44:46,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:44:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:44:46,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:44:46,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097976323] [2020-09-15 22:44:46,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:44:46,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-15 22:44:46,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2036035468] [2020-09-15 22:44:46,649 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:44:46,651 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:44:46,656 INFO L274 McrAutomatonBuilder]: Finished intersection with 27 states and 37 transitions. [2020-09-15 22:44:46,656 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:44:46,699 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 22:44:46,747 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3808#(<= ~__unbuffered_cnt~0 0)] [2020-09-15 22:44:46,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-15 22:44:46,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:44:46,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-15 22:44:46,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-15 22:44:46,749 INFO L87 Difference]: Start difference. First operand 45 states and 74 transitions. Second operand 7 states. [2020-09-15 22:44:46,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:44:46,799 INFO L93 Difference]: Finished difference Result 42 states and 66 transitions. [2020-09-15 22:44:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 22:44:46,800 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-09-15 22:44:46,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:44:46,801 INFO L225 Difference]: With dead ends: 42 [2020-09-15 22:44:46,801 INFO L226 Difference]: Without dead ends: 36 [2020-09-15 22:44:46,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-15 22:44:46,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-15 22:44:46,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-15 22:44:46,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-15 22:44:46,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-09-15 22:44:46,803 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-09-15 22:44:46,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:44:46,804 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-09-15 22:44:46,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-15 22:44:46,804 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-09-15 22:44:46,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-15 22:44:46,805 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 22:44:46,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 22:44:46,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-15 22:44:46,805 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 22:44:46,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 22:44:46,806 INFO L82 PathProgramCache]: Analyzing trace with hash -412776350, now seen corresponding path program 1 times [2020-09-15 22:44:46,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 22:44:46,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361395038] [2020-09-15 22:44:46,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 22:44:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 22:44:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 22:44:46,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361395038] [2020-09-15 22:44:46,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 22:44:46,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 22:44:46,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1487496139] [2020-09-15 22:44:46,862 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 22:44:46,864 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 22:44:46,868 INFO L274 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-09-15 22:44:46,868 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 22:44:46,896 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 22:44:46,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 22:44:46,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 22:44:46,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 22:44:46,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 22:44:46,897 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2020-09-15 22:44:46,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 22:44:46,907 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-09-15 22:44:46,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 22:44:46,908 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-15 22:44:46,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 22:44:46,908 INFO L225 Difference]: With dead ends: 35 [2020-09-15 22:44:46,908 INFO L226 Difference]: Without dead ends: 0 [2020-09-15 22:44:46,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 22:44:46,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-15 22:44:46,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-15 22:44:46,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-15 22:44:46,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-15 22:44:46,910 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-15 22:44:46,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 22:44:46,910 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-15 22:44:46,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 22:44:46,910 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-15 22:44:46,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-15 22:44:46,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-15 22:44:46,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 10:44:46 BasicIcfg [2020-09-15 22:44:46,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 22:44:46,919 INFO L168 Benchmark]: Toolchain (without parser) took 5090.76 ms. Allocated memory was 142.1 MB in the beginning and 277.9 MB in the end (delta: 135.8 MB). Free memory was 103.2 MB in the beginning and 216.4 MB in the end (delta: -113.2 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-15 22:44:46,920 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-15 22:44:46,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 733.36 ms. Allocated memory was 142.1 MB in the beginning and 206.0 MB in the end (delta: 64.0 MB). Free memory was 102.6 MB in the beginning and 164.0 MB in the end (delta: -61.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-09-15 22:44:46,922 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.60 ms. Allocated memory is still 206.0 MB. Free memory was 164.0 MB in the beginning and 161.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-15 22:44:46,923 INFO L168 Benchmark]: Boogie Preprocessor took 29.59 ms. Allocated memory is still 206.0 MB. Free memory was 161.4 MB in the beginning and 160.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-15 22:44:46,923 INFO L168 Benchmark]: RCFGBuilder took 442.58 ms. Allocated memory is still 206.0 MB. Free memory was 160.1 MB in the beginning and 138.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-09-15 22:44:46,924 INFO L168 Benchmark]: TraceAbstraction took 3816.95 ms. Allocated memory was 206.0 MB in the beginning and 277.9 MB in the end (delta: 71.8 MB). Free memory was 137.6 MB in the beginning and 216.4 MB in the end (delta: -78.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-15 22:44:46,928 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 733.36 ms. Allocated memory was 142.1 MB in the beginning and 206.0 MB in the end (delta: 64.0 MB). Free memory was 102.6 MB in the beginning and 164.0 MB in the end (delta: -61.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.60 ms. Allocated memory is still 206.0 MB. Free memory was 164.0 MB in the beginning and 161.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.59 ms. Allocated memory is still 206.0 MB. Free memory was 161.4 MB in the beginning and 160.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 442.58 ms. Allocated memory is still 206.0 MB. Free memory was 160.1 MB in the beginning and 138.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3816.95 ms. Allocated memory was 206.0 MB in the beginning and 277.9 MB in the end (delta: 71.8 MB). Free memory was 137.6 MB in the beginning and 216.4 MB in the end (delta: -78.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 655 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 180 SDtfs, 107 SDslu, 191 SDs, 0 SdLazy, 122 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 86 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 3881 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...