/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/safe012_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:36:24,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:36:24,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:36:24,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:36:24,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:36:24,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:36:24,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:36:24,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:36:24,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:36:24,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:36:24,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:36:24,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:36:24,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:36:24,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:36:24,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:36:24,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:36:24,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:36:24,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:36:24,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:36:24,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:36:24,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:36:24,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:36:24,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:36:24,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:36:24,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 15:36:24,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:36:24,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:36:24,369 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:36:24,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:36:24,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:36:24,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:36:24,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:36:24,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:36:24,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:36:24,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:36:24,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:36:24,376 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-11-09 15:36:24,403 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:36:24,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:36:24,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:36:24,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:36:24,405 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:36:24,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:36:24,406 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:36:24,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:36:24,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:36:24,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:36:24,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:36:24,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:36:24,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:36:24,407 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:36:24,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:36:24,407 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:36:24,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:36:24,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:36:24,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:36:24,408 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:36:24,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:36:24,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:36:24,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:36:24,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:36:24,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:36:24,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:36:24,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:36:24,410 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:36:24,410 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:36:24,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:36:24,410 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:36:24,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:36:24,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:36:24,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:36:24,904 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:36:24,904 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:36:24,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i [2020-11-09 15:36:24,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e445174c/4d8c21d2cd2047479dc3a0c65d0eb94a/FLAG1c7704607 [2020-11-09 15:36:25,798 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:36:25,799 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i [2020-11-09 15:36:25,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e445174c/4d8c21d2cd2047479dc3a0c65d0eb94a/FLAG1c7704607 [2020-11-09 15:36:26,052 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e445174c/4d8c21d2cd2047479dc3a0c65d0eb94a [2020-11-09 15:36:26,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:36:26,064 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:36:26,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:36:26,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:36:26,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:36:26,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:36:26" (1/1) ... [2020-11-09 15:36:26,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e3f8ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:36:26, skipping insertion in model container [2020-11-09 15:36:26,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:36:26" (1/1) ... [2020-11-09 15:36:26,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:36:26,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:36:26,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:36:26,552 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:36:26,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:36:26,727 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:36:26,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:36:26 WrapperNode [2020-11-09 15:36:26,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:36:26,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:36:26,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:36:26,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:36:26,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:36:26" (1/1) ... [2020-11-09 15:36:26,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:36:26" (1/1) ... [2020-11-09 15:36:26,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:36:26,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:36:26,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:36:26,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:36:26,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:36:26" (1/1) ... [2020-11-09 15:36:26,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:36:26" (1/1) ... [2020-11-09 15:36:26,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:36:26" (1/1) ... [2020-11-09 15:36:26,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:36:26" (1/1) ... [2020-11-09 15:36:26,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:36:26" (1/1) ... [2020-11-09 15:36:26,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:36:26" (1/1) ... [2020-11-09 15:36:26,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:36:26" (1/1) ... [2020-11-09 15:36:26,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:36:26,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:36:26,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:36:26,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:36:26,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:36:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:36:26,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:36:26,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:36:26,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:36:26,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:36:26,896 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:36:26,896 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:36:26,896 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:36:26,897 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:36:26,897 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 15:36:26,897 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 15:36:26,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:36:26,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:36:26,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:36:26,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:36:26,899 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 15:36:27,492 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:36:27,493 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:36:27,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:36:27 BoogieIcfgContainer [2020-11-09 15:36:27,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:36:27,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:36:27,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:36:27,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:36:27,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:36:26" (1/3) ... [2020-11-09 15:36:27,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5efd9cb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:36:27, skipping insertion in model container [2020-11-09 15:36:27,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:36:26" (2/3) ... [2020-11-09 15:36:27,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5efd9cb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:36:27, skipping insertion in model container [2020-11-09 15:36:27,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:36:27" (3/3) ... [2020-11-09 15:36:27,504 INFO L111 eAbstractionObserver]: Analyzing ICFG safe012_tso.oepc.i [2020-11-09 15:36:27,522 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:36:27,522 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:36:27,526 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:36:27,527 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:36:27,564 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,565 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,565 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,566 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,566 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,566 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,567 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,567 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,567 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,567 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,568 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,568 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,569 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,569 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,571 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,571 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,571 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,571 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,571 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,572 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,572 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,572 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,572 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,573 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,573 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,573 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,576 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,576 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,576 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,576 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,582 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,582 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,583 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,583 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,586 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,586 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,587 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,587 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:36:27,590 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:36:27,603 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 15:36:27,629 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:36:27,629 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:36:27,629 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:36:27,629 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:36:27,630 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:36:27,630 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:36:27,630 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:36:27,630 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:36:27,643 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:36:27,644 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-09 15:36:27,648 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-09 15:36:27,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-11-09 15:36:27,701 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-11-09 15:36:27,701 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:36:27,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 15:36:27,713 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 15:36:30,421 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-11-09 15:36:30,578 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-11-09 15:36:31,333 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-11-09 15:36:31,553 WARN L194 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-09 15:36:32,554 WARN L194 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 15:36:32,686 WARN L194 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 15:36:32,948 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 15:36:33,071 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 15:36:33,272 INFO L131 LiptonReduction]: Checked pairs total: 2810 [2020-11-09 15:36:33,272 INFO L133 LiptonReduction]: Total number of compositions: 73 [2020-11-09 15:36:33,282 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 15:36:33,333 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-09 15:36:33,336 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-09 15:36:33,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 15:36:33,346 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:36:33,347 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:36:33,348 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:36:33,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:36:33,360 INFO L82 PathProgramCache]: Analyzing trace with hash -853874994, now seen corresponding path program 1 times [2020-11-09 15:36:33,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:36:33,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283840320] [2020-11-09 15:36:33,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:36:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:36:33,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:36:33,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283840320] [2020-11-09 15:36:33,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:36:33,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:36:33,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1924444766] [2020-11-09 15:36:33,757 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:36:33,763 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:36:33,779 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 15:36:33,780 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:36:33,787 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:36:33,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:36:33,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:36:33,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:36:33,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:36:33,814 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-11-09 15:36:33,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:36:33,893 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-11-09 15:36:33,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:36:33,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 15:36:33,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:36:33,911 INFO L225 Difference]: With dead ends: 282 [2020-11-09 15:36:33,911 INFO L226 Difference]: Without dead ends: 218 [2020-11-09 15:36:33,912 INFO L677 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 [2020-11-09 15:36:33,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-09 15:36:33,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-11-09 15:36:33,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-09 15:36:34,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-11-09 15:36:34,002 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-11-09 15:36:34,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:36:34,003 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-11-09 15:36:34,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:36:34,003 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-11-09 15:36:34,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 15:36:34,006 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:36:34,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:36:34,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:36:34,006 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:36:34,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:36:34,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1991399085, now seen corresponding path program 1 times [2020-11-09 15:36:34,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:36:34,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564789871] [2020-11-09 15:36:34,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:36:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:36:34,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:36:34,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564789871] [2020-11-09 15:36:34,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:36:34,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:36:34,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1562421247] [2020-11-09 15:36:34,081 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:36:34,082 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:36:34,085 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions. [2020-11-09 15:36:34,085 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:36:34,199 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:36:34,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:36:34,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:36:34,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:36:34,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:36:34,202 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-11-09 15:36:34,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:36:34,245 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-11-09 15:36:34,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:36:34,247 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 15:36:34,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:36:34,249 INFO L225 Difference]: With dead ends: 242 [2020-11-09 15:36:34,249 INFO L226 Difference]: Without dead ends: 116 [2020-11-09 15:36:34,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:36:34,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-11-09 15:36:34,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-11-09 15:36:34,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-11-09 15:36:34,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 284 transitions. [2020-11-09 15:36:34,261 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 284 transitions. Word has length 9 [2020-11-09 15:36:34,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:36:34,261 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 284 transitions. [2020-11-09 15:36:34,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:36:34,262 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 284 transitions. [2020-11-09 15:36:34,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 15:36:34,263 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:36:34,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:36:34,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:36:34,263 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:36:34,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:36:34,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1270638185, now seen corresponding path program 1 times [2020-11-09 15:36:34,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:36:34,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029354076] [2020-11-09 15:36:34,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:36:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:36:34,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:36:34,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029354076] [2020-11-09 15:36:34,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:36:34,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:36:34,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1962688411] [2020-11-09 15:36:34,373 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:36:34,374 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:36:34,377 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 17 transitions. [2020-11-09 15:36:34,377 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:36:34,391 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:36:34,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:36:34,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:36:34,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:36:34,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:36:34,393 INFO L87 Difference]: Start difference. First operand 116 states and 284 transitions. Second operand 4 states. [2020-11-09 15:36:34,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:36:34,421 INFO L93 Difference]: Finished difference Result 140 states and 326 transitions. [2020-11-09 15:36:34,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:36:34,421 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 15:36:34,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:36:34,423 INFO L225 Difference]: With dead ends: 140 [2020-11-09 15:36:34,423 INFO L226 Difference]: Without dead ends: 68 [2020-11-09 15:36:34,423 INFO L677 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 [2020-11-09 15:36:34,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-09 15:36:34,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-09 15:36:34,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-09 15:36:34,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-11-09 15:36:34,430 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 11 [2020-11-09 15:36:34,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:36:34,431 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-11-09 15:36:34,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:36:34,431 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-11-09 15:36:34,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:36:34,432 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:36:34,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:36:34,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:36:34,432 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:36:34,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:36:34,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1721558133, now seen corresponding path program 1 times [2020-11-09 15:36:34,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:36:34,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691040074] [2020-11-09 15:36:34,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:36:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:36:34,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:36:34,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691040074] [2020-11-09 15:36:34,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:36:34,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:36:34,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1118627511] [2020-11-09 15:36:34,533 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:36:34,534 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:36:34,538 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions. [2020-11-09 15:36:34,538 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:36:34,561 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:36:34,591 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:36:34,618 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:36:34,644 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:36:34,657 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2173#(not (= 3 ~__unbuffered_cnt~0))] [2020-11-09 15:36:34,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:36:34,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:36:34,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:36:34,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:36:34,659 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 5 states. [2020-11-09 15:36:34,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:36:34,751 INFO L93 Difference]: Finished difference Result 67 states and 126 transitions. [2020-11-09 15:36:34,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:36:34,752 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 15:36:34,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:36:34,752 INFO L225 Difference]: With dead ends: 67 [2020-11-09 15:36:34,753 INFO L226 Difference]: Without dead ends: 45 [2020-11-09 15:36:34,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:36:34,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-09 15:36:34,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-09 15:36:34,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-09 15:36:34,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 74 transitions. [2020-11-09 15:36:34,758 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 74 transitions. Word has length 13 [2020-11-09 15:36:34,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:36:34,758 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 74 transitions. [2020-11-09 15:36:34,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:36:34,758 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 74 transitions. [2020-11-09 15:36:34,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 15:36:34,759 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:36:34,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:36:34,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:36:34,760 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:36:34,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:36:34,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1799830367, now seen corresponding path program 1 times [2020-11-09 15:36:34,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:36:34,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423812677] [2020-11-09 15:36:34,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:36:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:36:34,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:36:34,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423812677] [2020-11-09 15:36:34,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:36:34,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:36:34,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [950682922] [2020-11-09 15:36:34,876 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:36:34,878 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:36:34,882 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 29 transitions. [2020-11-09 15:36:34,882 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:36:34,893 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:36:34,953 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [2341#(not (= 3 ~__unbuffered_cnt~0)), 2342#(not (= ~__unbuffered_cnt~0 2)), 2343#(not (= ~__unbuffered_cnt~0 1))] [2020-11-09 15:36:34,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 15:36:34,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:36:34,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 15:36:34,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-09 15:36:34,954 INFO L87 Difference]: Start difference. First operand 45 states and 74 transitions. Second operand 9 states. [2020-11-09 15:36:35,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:36:35,025 INFO L93 Difference]: Finished difference Result 42 states and 66 transitions. [2020-11-09 15:36:35,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:36:35,026 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-11-09 15:36:35,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:36:35,026 INFO L225 Difference]: With dead ends: 42 [2020-11-09 15:36:35,027 INFO L226 Difference]: Without dead ends: 36 [2020-11-09 15:36:35,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-11-09 15:36:35,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-09 15:36:35,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-09 15:36:35,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-09 15:36:35,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-11-09 15:36:35,030 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-11-09 15:36:35,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:36:35,031 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-11-09 15:36:35,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 15:36:35,031 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-11-09 15:36:35,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 15:36:35,032 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:36:35,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:36:35,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:36:35,032 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:36:35,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:36:35,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1269131745, now seen corresponding path program 1 times [2020-11-09 15:36:35,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:36:35,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127773494] [2020-11-09 15:36:35,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:36:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:36:35,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:36:35,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127773494] [2020-11-09 15:36:35,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:36:35,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:36:35,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1282256360] [2020-11-09 15:36:35,076 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:36:35,078 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:36:35,082 INFO L252 McrAutomatonBuilder]: Finished intersection with 26 states and 33 transitions. [2020-11-09 15:36:35,083 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:36:35,096 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:36:35,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:36:35,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:36:35,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:36:35,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:36:35,098 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2020-11-09 15:36:35,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:36:35,110 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-11-09 15:36:35,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:36:35,110 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 15:36:35,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:36:35,110 INFO L225 Difference]: With dead ends: 35 [2020-11-09 15:36:35,110 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:36:35,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:36:35,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:36:35,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:36:35,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:36:35,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:36:35,112 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 15:36:35,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:36:35,112 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:36:35,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:36:35,112 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:36:35,112 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:36:35,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:36:35,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:36:35 BasicIcfg [2020-11-09 15:36:35,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:36:35,118 INFO L168 Benchmark]: Toolchain (without parser) took 9058.62 ms. Allocated memory was 151.0 MB in the beginning and 225.4 MB in the end (delta: 74.4 MB). Free memory was 124.3 MB in the beginning and 111.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 87.9 MB. Max. memory is 8.0 GB. [2020-11-09 15:36:35,119 INFO L168 Benchmark]: CDTParser took 3.86 ms. Allocated memory is still 151.0 MB. Free memory is still 123.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:36:35,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.20 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 126.8 MB in the end (delta: -3.2 MB). Peak memory consumption was 29.5 MB. Max. memory is 8.0 GB. [2020-11-09 15:36:35,120 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.24 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 124.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:36:35,121 INFO L168 Benchmark]: Boogie Preprocessor took 29.04 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 123.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:36:35,122 INFO L168 Benchmark]: RCFGBuilder took 684.81 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 100.6 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:36:35,123 INFO L168 Benchmark]: TraceAbstraction took 7619.52 ms. Allocated memory was 151.0 MB in the beginning and 225.4 MB in the end (delta: 74.4 MB). Free memory was 100.1 MB in the beginning and 111.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 62.5 MB. Max. memory is 8.0 GB. [2020-11-09 15:36:35,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.86 ms. Allocated memory is still 151.0 MB. Free memory is still 123.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 658.20 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 126.8 MB in the end (delta: -3.2 MB). Peak memory consumption was 29.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.24 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 124.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.04 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 123.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 684.81 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 100.6 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7619.52 ms. Allocated memory was 151.0 MB in the beginning and 225.4 MB in the end (delta: 74.4 MB). Free memory was 100.1 MB in the beginning and 111.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 62.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 797 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 59 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.6s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 73 TotalNumberOfCompositions, 2810 MoverChecksTotal - PositiveResult [Line: 17]: 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, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.7s, HoareTripleCheckerStatistics: 102 SDtfs, 106 SDslu, 139 SDs, 0 SdLazy, 97 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 2411 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...