/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix033_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 19:37:30,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 19:37:30,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 19:37:30,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-24 19:37:30,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 19:37:30,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 19:37:30,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 19:37:30,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 19:37:30,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 19:37:30,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 19:37:30,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 19:37:30,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 19:37:30,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 19:37:30,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 19:37:30,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 19:37:30,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 19:37:30,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 19:37:30,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 19:37:30,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 19:37:30,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 19:37:30,370 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-03-24 19:37:30,402 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 19:37:30,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 19:37:30,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 19:37:30,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 19:37:30,406 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 19:37:30,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 19:37:30,406 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 19:37:30,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 19:37:30,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 19:37:30,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 19:37:30,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 19:37:30,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 19:37:30,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 19:37:30,408 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 19:37:30,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 19:37:30,408 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 19:37:30,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 19:37:30,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 19:37:30,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 19:37:30,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 19:37:30,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 19:37:30,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 19:37:30,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 19:37:30,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 19:37:30,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 19:37:30,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 19:37:30,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 19:37:30,410 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 19:37:30,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 19:37:30,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 19:37:30,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 19:37:30,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 19:37:30,726 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 19:37:30,726 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 19:37:30,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix033_power.opt.i [2021-03-24 19:37:30,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6498d14c/ffa03df201294fb1ae927e33fd11b949/FLAG50ff6d538 [2021-03-24 19:37:31,458 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 19:37:31,459 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix033_power.opt.i [2021-03-24 19:37:31,470 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6498d14c/ffa03df201294fb1ae927e33fd11b949/FLAG50ff6d538 [2021-03-24 19:37:31,818 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6498d14c/ffa03df201294fb1ae927e33fd11b949 [2021-03-24 19:37:31,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 19:37:31,823 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 19:37:31,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 19:37:31,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 19:37:31,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 19:37:31,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:37:31" (1/1) ... [2021-03-24 19:37:31,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ab5f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:37:31, skipping insertion in model container [2021-03-24 19:37:31,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:37:31" (1/1) ... [2021-03-24 19:37:31,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 19:37:31,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 19:37:32,009 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix033_power.opt.i[950,963] [2021-03-24 19:37:32,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:37:32,269 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 19:37:32,278 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix033_power.opt.i[950,963] [2021-03-24 19:37:32,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:37:32,407 INFO L208 MainTranslator]: Completed translation [2021-03-24 19:37:32,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:37:32 WrapperNode [2021-03-24 19:37:32,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 19:37:32,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 19:37:32,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 19:37:32,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 19:37:32,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:37:32" (1/1) ... [2021-03-24 19:37:32,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:37:32" (1/1) ... [2021-03-24 19:37:32,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 19:37:32,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 19:37:32,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 19:37:32,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 19:37:32,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:37:32" (1/1) ... [2021-03-24 19:37:32,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:37:32" (1/1) ... [2021-03-24 19:37:32,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:37:32" (1/1) ... [2021-03-24 19:37:32,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:37:32" (1/1) ... [2021-03-24 19:37:32,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:37:32" (1/1) ... [2021-03-24 19:37:32,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:37:32" (1/1) ... [2021-03-24 19:37:32,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:37:32" (1/1) ... [2021-03-24 19:37:32,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 19:37:32,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 19:37:32,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 19:37:32,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 19:37:32,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:37:32" (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 [2021-03-24 19:37:32,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 19:37:32,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 19:37:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 19:37:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 19:37:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-24 19:37:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-24 19:37:32,581 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-24 19:37:32,581 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-24 19:37:32,582 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-24 19:37:32,582 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-24 19:37:32,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 19:37:32,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 19:37:32,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 19:37:32,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 19:37:32,584 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 19:37:33,975 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 19:37:33,976 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-24 19:37:33,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:37:33 BoogieIcfgContainer [2021-03-24 19:37:33,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 19:37:33,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 19:37:33,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 19:37:33,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 19:37:33,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 07:37:31" (1/3) ... [2021-03-24 19:37:33,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2437e715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:37:33, skipping insertion in model container [2021-03-24 19:37:33,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:37:32" (2/3) ... [2021-03-24 19:37:33,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2437e715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:37:33, skipping insertion in model container [2021-03-24 19:37:33,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:37:33" (3/3) ... [2021-03-24 19:37:33,985 INFO L111 eAbstractionObserver]: Analyzing ICFG mix033_power.opt.i [2021-03-24 19:37:33,989 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 19:37:33,993 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-24 19:37:33,994 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 19:37:34,024 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,025 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,025 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,025 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,025 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,026 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,026 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,026 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,026 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,026 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,027 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,027 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,027 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,027 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,027 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,028 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,028 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,028 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,028 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,028 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,031 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,031 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,031 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,031 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,031 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,031 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,031 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,031 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,031 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,031 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,032 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,032 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,032 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,032 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,032 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,032 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,032 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,032 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,046 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,047 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,050 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,050 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,050 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,051 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,056 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,056 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,056 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,056 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,057 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,058 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,058 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,058 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,058 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,058 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,058 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,058 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,059 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,059 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,059 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,059 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,059 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,059 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,059 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,059 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,060 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,060 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,060 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,060 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,060 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,060 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,063 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,064 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,065 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,066 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,066 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,067 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,067 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,069 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,069 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,069 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,069 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:37:34,070 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 19:37:34,086 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-24 19:37:34,112 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 19:37:34,112 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 19:37:34,112 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 19:37:34,112 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 19:37:34,113 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 19:37:34,113 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 19:37:34,113 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 19:37:34,113 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 19:37:34,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 104 transitions, 223 flow [2021-03-24 19:37:34,173 INFO L129 PetriNetUnfolder]: 2/101 cut-off events. [2021-03-24 19:37:34,174 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:37:34,185 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 101 events. 2/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-03-24 19:37:34,186 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 104 transitions, 223 flow [2021-03-24 19:37:34,190 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 101 transitions, 211 flow [2021-03-24 19:37:34,191 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 19:37:34,206 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 101 transitions, 211 flow [2021-03-24 19:37:34,209 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 101 transitions, 211 flow [2021-03-24 19:37:34,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 101 transitions, 211 flow [2021-03-24 19:37:34,243 INFO L129 PetriNetUnfolder]: 2/101 cut-off events. [2021-03-24 19:37:34,244 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:37:34,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 101 events. 2/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-03-24 19:37:34,249 INFO L142 LiptonReduction]: Number of co-enabled transitions 1832 [2021-03-24 19:37:35,467 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-24 19:37:35,840 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-24 19:37:35,985 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-24 19:37:37,057 INFO L154 LiptonReduction]: Checked pairs total: 3136 [2021-03-24 19:37:37,057 INFO L156 LiptonReduction]: Total number of compositions: 73 [2021-03-24 19:37:37,059 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2869 [2021-03-24 19:37:37,069 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-24 19:37:37,069 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:37:37,070 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:37:37,070 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:37:37,070 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:37:37,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:37:37,075 INFO L82 PathProgramCache]: Analyzing trace with hash 175322, now seen corresponding path program 1 times [2021-03-24 19:37:37,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:37:37,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391873886] [2021-03-24 19:37:37,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:37:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:37:37,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:37,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:37:37,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:37,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:37:37,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:37:37,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391873886] [2021-03-24 19:37:37,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:37:37,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 19:37:37,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122474992] [2021-03-24 19:37:37,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 19:37:37,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:37:37,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 19:37:37,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 19:37:37,345 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 177 [2021-03-24 19:37:37,350 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:37,351 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:37:37,351 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 177 [2021-03-24 19:37:37,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:37:37,409 INFO L129 PetriNetUnfolder]: 9/72 cut-off events. [2021-03-24 19:37:37,409 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:37:37,410 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 72 events. 9/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 198 event pairs, 3 based on Foata normal form. 6/70 useless extension candidates. Maximal degree in co-relation 83. Up to 17 conditions per place. [2021-03-24 19:37:37,411 INFO L132 encePairwiseOnDemand]: 173/177 looper letters, 5 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2021-03-24 19:37:37,411 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 38 transitions, 99 flow [2021-03-24 19:37:37,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 19:37:37,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 19:37:37,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 481 transitions. [2021-03-24 19:37:37,428 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9058380414312618 [2021-03-24 19:37:37,429 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 481 transitions. [2021-03-24 19:37:37,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 481 transitions. [2021-03-24 19:37:37,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:37:37,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 481 transitions. [2021-03-24 19:37:37,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:37,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:37,456 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:37,458 INFO L185 Difference]: Start difference. First operand has 48 places, 39 transitions, 87 flow. Second operand 3 states and 481 transitions. [2021-03-24 19:37:37,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 38 transitions, 99 flow [2021-03-24 19:37:37,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 38 transitions, 96 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-24 19:37:37,461 INFO L241 Difference]: Finished difference. Result has 45 places, 36 transitions, 82 flow [2021-03-24 19:37:37,463 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2021-03-24 19:37:37,465 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2021-03-24 19:37:37,465 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 82 flow [2021-03-24 19:37:37,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:37,465 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:37:37,465 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:37:37,466 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 19:37:37,466 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:37:37,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:37:37,467 INFO L82 PathProgramCache]: Analyzing trace with hash 930779888, now seen corresponding path program 1 times [2021-03-24 19:37:37,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:37:37,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215071094] [2021-03-24 19:37:37,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:37:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:37:37,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:37,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:37:37,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:37,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:37:37,606 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-03-24 19:37:37,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 19:37:37,619 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:37:37,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:37:37,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:37:37,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215071094] [2021-03-24 19:37:37,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:37:37,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:37:37,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909246494] [2021-03-24 19:37:37,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:37:37,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:37:37,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:37:37,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:37:37,628 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 177 [2021-03-24 19:37:37,629 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 139.2) internal successors, (696), 5 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:37,629 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:37:37,629 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 177 [2021-03-24 19:37:37,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:37:37,833 INFO L129 PetriNetUnfolder]: 175/438 cut-off events. [2021-03-24 19:37:37,833 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:37:37,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 771 conditions, 438 events. 175/438 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2599 event pairs, 55 based on Foata normal form. 30/428 useless extension candidates. Maximal degree in co-relation 748. Up to 127 conditions per place. [2021-03-24 19:37:37,840 INFO L132 encePairwiseOnDemand]: 168/177 looper letters, 13 selfloop transitions, 6 changer transitions 18/59 dead transitions. [2021-03-24 19:37:37,841 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 59 transitions, 200 flow [2021-03-24 19:37:37,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:37:37,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:37:37,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1005 transitions. [2021-03-24 19:37:37,845 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8111380145278451 [2021-03-24 19:37:37,845 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1005 transitions. [2021-03-24 19:37:37,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1005 transitions. [2021-03-24 19:37:37,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:37:37,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1005 transitions. [2021-03-24 19:37:37,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 143.57142857142858) internal successors, (1005), 7 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:37,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:37,852 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:37,852 INFO L185 Difference]: Start difference. First operand has 45 places, 36 transitions, 82 flow. Second operand 7 states and 1005 transitions. [2021-03-24 19:37:37,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 59 transitions, 200 flow [2021-03-24 19:37:37,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 59 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 19:37:37,854 INFO L241 Difference]: Finished difference. Result has 55 places, 38 transitions, 132 flow [2021-03-24 19:37:37,854 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=132, PETRI_PLACES=55, PETRI_TRANSITIONS=38} [2021-03-24 19:37:37,855 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places. [2021-03-24 19:37:37,855 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 38 transitions, 132 flow [2021-03-24 19:37:37,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 139.2) internal successors, (696), 5 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:37,856 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:37:37,856 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:37:37,856 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 19:37:37,856 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:37:37,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:37:37,856 INFO L82 PathProgramCache]: Analyzing trace with hash -632479971, now seen corresponding path program 1 times [2021-03-24 19:37:37,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:37:37,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348772635] [2021-03-24 19:37:37,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:37:37,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:37:37,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:37,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:37:37,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:37,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:37:37,961 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:37:37,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:37:37,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:37:37,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348772635] [2021-03-24 19:37:37,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:37:37,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:37:37,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556000951] [2021-03-24 19:37:37,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:37:37,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:37:37,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:37:37,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:37:37,972 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 177 [2021-03-24 19:37:37,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 38 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 155.75) internal successors, (623), 4 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:37,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:37:37,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 177 [2021-03-24 19:37:37,973 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:37:38,010 INFO L129 PetriNetUnfolder]: 47/166 cut-off events. [2021-03-24 19:37:38,010 INFO L130 PetriNetUnfolder]: For 168/171 co-relation queries the response was YES. [2021-03-24 19:37:38,012 INFO L84 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 166 events. 47/166 cut-off events. For 168/171 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 745 event pairs, 26 based on Foata normal form. 12/170 useless extension candidates. Maximal degree in co-relation 406. Up to 78 conditions per place. [2021-03-24 19:37:38,013 INFO L132 encePairwiseOnDemand]: 173/177 looper letters, 2 selfloop transitions, 3 changer transitions 3/41 dead transitions. [2021-03-24 19:37:38,013 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 41 transitions, 166 flow [2021-03-24 19:37:38,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:37:38,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:37:38,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 783 transitions. [2021-03-24 19:37:38,016 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8847457627118644 [2021-03-24 19:37:38,016 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 783 transitions. [2021-03-24 19:37:38,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 783 transitions. [2021-03-24 19:37:38,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:37:38,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 783 transitions. [2021-03-24 19:37:38,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 156.6) internal successors, (783), 5 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,020 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,020 INFO L185 Difference]: Start difference. First operand has 55 places, 38 transitions, 132 flow. Second operand 5 states and 783 transitions. [2021-03-24 19:37:38,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 41 transitions, 166 flow [2021-03-24 19:37:38,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 41 transitions, 160 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-24 19:37:38,025 INFO L241 Difference]: Finished difference. Result has 55 places, 38 transitions, 141 flow [2021-03-24 19:37:38,025 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=141, PETRI_PLACES=55, PETRI_TRANSITIONS=38} [2021-03-24 19:37:38,025 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places. [2021-03-24 19:37:38,025 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 38 transitions, 141 flow [2021-03-24 19:37:38,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 155.75) internal successors, (623), 4 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,026 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:37:38,026 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:37:38,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 19:37:38,026 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:37:38,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:37:38,026 INFO L82 PathProgramCache]: Analyzing trace with hash 2064491968, now seen corresponding path program 1 times [2021-03-24 19:37:38,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:37:38,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651246919] [2021-03-24 19:37:38,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:37:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:37:38,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:38,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:37:38,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:38,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:37:38,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:38,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:37:38,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:38,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:37:38,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:37:38,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651246919] [2021-03-24 19:37:38,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:37:38,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:37:38,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641697306] [2021-03-24 19:37:38,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:37:38,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:37:38,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:37:38,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:37:38,146 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 177 [2021-03-24 19:37:38,147 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 38 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,147 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:37:38,147 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 177 [2021-03-24 19:37:38,148 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:37:38,228 INFO L129 PetriNetUnfolder]: 181/419 cut-off events. [2021-03-24 19:37:38,228 INFO L130 PetriNetUnfolder]: For 165/169 co-relation queries the response was YES. [2021-03-24 19:37:38,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 978 conditions, 419 events. 181/419 cut-off events. For 165/169 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 2481 event pairs, 80 based on Foata normal form. 30/374 useless extension candidates. Maximal degree in co-relation 949. Up to 249 conditions per place. [2021-03-24 19:37:38,233 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 10 selfloop transitions, 8 changer transitions 0/49 dead transitions. [2021-03-24 19:37:38,233 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 49 transitions, 199 flow [2021-03-24 19:37:38,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:37:38,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:37:38,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 755 transitions. [2021-03-24 19:37:38,235 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8531073446327684 [2021-03-24 19:37:38,236 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 755 transitions. [2021-03-24 19:37:38,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 755 transitions. [2021-03-24 19:37:38,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:37:38,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 755 transitions. [2021-03-24 19:37:38,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 151.0) internal successors, (755), 5 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,240 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,240 INFO L185 Difference]: Start difference. First operand has 55 places, 38 transitions, 141 flow. Second operand 5 states and 755 transitions. [2021-03-24 19:37:38,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 49 transitions, 199 flow [2021-03-24 19:37:38,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 49 transitions, 187 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-24 19:37:38,245 INFO L241 Difference]: Finished difference. Result has 55 places, 45 transitions, 189 flow [2021-03-24 19:37:38,245 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=189, PETRI_PLACES=55, PETRI_TRANSITIONS=45} [2021-03-24 19:37:38,245 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places. [2021-03-24 19:37:38,245 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 45 transitions, 189 flow [2021-03-24 19:37:38,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,246 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:37:38,246 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:37:38,246 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 19:37:38,246 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:37:38,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:37:38,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1998684274, now seen corresponding path program 1 times [2021-03-24 19:37:38,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:37:38,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848708214] [2021-03-24 19:37:38,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:37:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:37:38,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:38,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:37:38,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:38,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:37:38,374 INFO L142 QuantifierPusher]: treesize reduction 8, result has 33.3 percent of original size [2021-03-24 19:37:38,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:37:38,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:38,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:37:38,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:38,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:37:38,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:37:38,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848708214] [2021-03-24 19:37:38,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:37:38,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 19:37:38,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886313729] [2021-03-24 19:37:38,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:37:38,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:37:38,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:37:38,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:37:38,385 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 177 [2021-03-24 19:37:38,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 45 transitions, 189 flow. Second operand has 5 states, 5 states have (on average 147.8) internal successors, (739), 5 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:37:38,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 177 [2021-03-24 19:37:38,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:37:38,466 INFO L129 PetriNetUnfolder]: 123/328 cut-off events. [2021-03-24 19:37:38,466 INFO L130 PetriNetUnfolder]: For 442/874 co-relation queries the response was YES. [2021-03-24 19:37:38,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1124 conditions, 328 events. 123/328 cut-off events. For 442/874 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 1843 event pairs, 13 based on Foata normal form. 123/415 useless extension candidates. Maximal degree in co-relation 1095. Up to 195 conditions per place. [2021-03-24 19:37:38,469 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 8 selfloop transitions, 15 changer transitions 3/57 dead transitions. [2021-03-24 19:37:38,469 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 303 flow [2021-03-24 19:37:38,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:37:38,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:37:38,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1057 transitions. [2021-03-24 19:37:38,472 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8531073446327684 [2021-03-24 19:37:38,472 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1057 transitions. [2021-03-24 19:37:38,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1057 transitions. [2021-03-24 19:37:38,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:37:38,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1057 transitions. [2021-03-24 19:37:38,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,477 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,477 INFO L185 Difference]: Start difference. First operand has 55 places, 45 transitions, 189 flow. Second operand 7 states and 1057 transitions. [2021-03-24 19:37:38,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 57 transitions, 303 flow [2021-03-24 19:37:38,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 57 transitions, 299 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 19:37:38,481 INFO L241 Difference]: Finished difference. Result has 63 places, 52 transitions, 284 flow [2021-03-24 19:37:38,481 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=284, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2021-03-24 19:37:38,481 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2021-03-24 19:37:38,481 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 284 flow [2021-03-24 19:37:38,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 147.8) internal successors, (739), 5 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,481 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:37:38,482 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:37:38,482 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 19:37:38,482 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:37:38,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:37:38,482 INFO L82 PathProgramCache]: Analyzing trace with hash 283600996, now seen corresponding path program 1 times [2021-03-24 19:37:38,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:37:38,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107463586] [2021-03-24 19:37:38,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:37:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:37:38,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:38,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:37:38,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:38,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:37:38,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:38,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:37:38,593 INFO L142 QuantifierPusher]: treesize reduction 8, result has 33.3 percent of original size [2021-03-24 19:37:38,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:37:38,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:38,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:37:38,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:38,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:37:38,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:37:38,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107463586] [2021-03-24 19:37:38,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:37:38,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:37:38,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069761773] [2021-03-24 19:37:38,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 19:37:38,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:37:38,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 19:37:38,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 19:37:38,606 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 177 [2021-03-24 19:37:38,607 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 284 flow. Second operand has 6 states, 6 states have (on average 147.83333333333334) internal successors, (887), 6 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,607 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:37:38,607 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 177 [2021-03-24 19:37:38,607 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:37:38,699 INFO L129 PetriNetUnfolder]: 101/278 cut-off events. [2021-03-24 19:37:38,699 INFO L130 PetriNetUnfolder]: For 1067/1794 co-relation queries the response was YES. [2021-03-24 19:37:38,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1220 conditions, 278 events. 101/278 cut-off events. For 1067/1794 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 1537 event pairs, 4 based on Foata normal form. 136/379 useless extension candidates. Maximal degree in co-relation 1187. Up to 175 conditions per place. [2021-03-24 19:37:38,702 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 5 selfloop transitions, 19 changer transitions 4/59 dead transitions. [2021-03-24 19:37:38,702 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 59 transitions, 376 flow [2021-03-24 19:37:38,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:37:38,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:37:38,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1353 transitions. [2021-03-24 19:37:38,706 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8493408662900188 [2021-03-24 19:37:38,706 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1353 transitions. [2021-03-24 19:37:38,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1353 transitions. [2021-03-24 19:37:38,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:37:38,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1353 transitions. [2021-03-24 19:37:38,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 150.33333333333334) internal successors, (1353), 9 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 177.0) internal successors, (1770), 10 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,713 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 177.0) internal successors, (1770), 10 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,713 INFO L185 Difference]: Start difference. First operand has 63 places, 52 transitions, 284 flow. Second operand 9 states and 1353 transitions. [2021-03-24 19:37:38,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 59 transitions, 376 flow [2021-03-24 19:37:38,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 59 transitions, 330 flow, removed 16 selfloop flow, removed 4 redundant places. [2021-03-24 19:37:38,720 INFO L241 Difference]: Finished difference. Result has 70 places, 53 transitions, 299 flow [2021-03-24 19:37:38,721 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=299, PETRI_PLACES=70, PETRI_TRANSITIONS=53} [2021-03-24 19:37:38,721 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2021-03-24 19:37:38,721 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 53 transitions, 299 flow [2021-03-24 19:37:38,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 147.83333333333334) internal successors, (887), 6 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,722 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:37:38,722 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:37:38,722 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 19:37:38,722 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:37:38,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:37:38,722 INFO L82 PathProgramCache]: Analyzing trace with hash 675709247, now seen corresponding path program 1 times [2021-03-24 19:37:38,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:37:38,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816362910] [2021-03-24 19:37:38,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:37:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:37:38,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:38,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:37:38,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:38,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:37:38,798 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-03-24 19:37:38,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 19:37:38,809 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:37:38,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:37:38,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:37:38,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816362910] [2021-03-24 19:37:38,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:37:38,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:37:38,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161806618] [2021-03-24 19:37:38,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:37:38,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:37:38,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:37:38,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:37:38,817 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 177 [2021-03-24 19:37:38,817 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 53 transitions, 299 flow. Second operand has 5 states, 5 states have (on average 136.6) internal successors, (683), 5 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:37:38,818 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 177 [2021-03-24 19:37:38,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:37:38,922 INFO L129 PetriNetUnfolder]: 103/354 cut-off events. [2021-03-24 19:37:38,922 INFO L130 PetriNetUnfolder]: For 885/938 co-relation queries the response was YES. [2021-03-24 19:37:38,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1361 conditions, 354 events. 103/354 cut-off events. For 885/938 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2327 event pairs, 10 based on Foata normal form. 2/335 useless extension candidates. Maximal degree in co-relation 1323. Up to 85 conditions per place. [2021-03-24 19:37:38,926 INFO L132 encePairwiseOnDemand]: 165/177 looper letters, 15 selfloop transitions, 16 changer transitions 4/69 dead transitions. [2021-03-24 19:37:38,926 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 69 transitions, 437 flow [2021-03-24 19:37:38,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 19:37:38,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 19:37:38,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 833 transitions. [2021-03-24 19:37:38,929 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7843691148775894 [2021-03-24 19:37:38,929 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 833 transitions. [2021-03-24 19:37:38,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 833 transitions. [2021-03-24 19:37:38,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:37:38,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 833 transitions. [2021-03-24 19:37:38,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 138.83333333333334) internal successors, (833), 6 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,934 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,934 INFO L185 Difference]: Start difference. First operand has 70 places, 53 transitions, 299 flow. Second operand 6 states and 833 transitions. [2021-03-24 19:37:38,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 69 transitions, 437 flow [2021-03-24 19:37:38,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 69 transitions, 357 flow, removed 23 selfloop flow, removed 9 redundant places. [2021-03-24 19:37:38,943 INFO L241 Difference]: Finished difference. Result has 69 places, 61 transitions, 334 flow [2021-03-24 19:37:38,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=334, PETRI_PLACES=69, PETRI_TRANSITIONS=61} [2021-03-24 19:37:38,943 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 21 predicate places. [2021-03-24 19:37:38,943 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 61 transitions, 334 flow [2021-03-24 19:37:38,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 136.6) internal successors, (683), 5 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:38,945 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:37:38,945 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:37:38,945 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 19:37:38,945 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:37:38,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:37:38,946 INFO L82 PathProgramCache]: Analyzing trace with hash -746307675, now seen corresponding path program 2 times [2021-03-24 19:37:38,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:37:38,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728633007] [2021-03-24 19:37:38,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:37:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:37:39,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:39,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:37:39,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:39,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:37:39,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:39,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:37:39,018 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-03-24 19:37:39,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 19:37:39,037 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:37:39,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:37:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:37:39,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728633007] [2021-03-24 19:37:39,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:37:39,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 19:37:39,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791683361] [2021-03-24 19:37:39,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 19:37:39,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:37:39,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 19:37:39,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-24 19:37:39,046 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 177 [2021-03-24 19:37:39,047 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 61 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:39,047 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:37:39,047 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 177 [2021-03-24 19:37:39,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:37:39,181 INFO L129 PetriNetUnfolder]: 100/389 cut-off events. [2021-03-24 19:37:39,181 INFO L130 PetriNetUnfolder]: For 499/595 co-relation queries the response was YES. [2021-03-24 19:37:39,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1379 conditions, 389 events. 100/389 cut-off events. For 499/595 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2669 event pairs, 8 based on Foata normal form. 14/389 useless extension candidates. Maximal degree in co-relation 1360. Up to 89 conditions per place. [2021-03-24 19:37:39,184 INFO L132 encePairwiseOnDemand]: 165/177 looper letters, 10 selfloop transitions, 11 changer transitions 20/75 dead transitions. [2021-03-24 19:37:39,184 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 75 transitions, 514 flow [2021-03-24 19:37:39,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:37:39,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:37:39,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 971 transitions. [2021-03-24 19:37:39,188 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7836965294592413 [2021-03-24 19:37:39,188 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 971 transitions. [2021-03-24 19:37:39,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 971 transitions. [2021-03-24 19:37:39,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:37:39,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 971 transitions. [2021-03-24 19:37:39,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.71428571428572) internal successors, (971), 7 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:39,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:39,194 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:39,194 INFO L185 Difference]: Start difference. First operand has 69 places, 61 transitions, 334 flow. Second operand 7 states and 971 transitions. [2021-03-24 19:37:39,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 75 transitions, 514 flow [2021-03-24 19:37:39,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 75 transitions, 510 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-24 19:37:39,201 INFO L241 Difference]: Finished difference. Result has 76 places, 53 transitions, 303 flow [2021-03-24 19:37:39,202 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=303, PETRI_PLACES=76, PETRI_TRANSITIONS=53} [2021-03-24 19:37:39,202 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 28 predicate places. [2021-03-24 19:37:39,202 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 53 transitions, 303 flow [2021-03-24 19:37:39,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:39,202 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:37:39,203 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:37:39,203 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 19:37:39,203 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:37:39,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:37:39,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1212073797, now seen corresponding path program 3 times [2021-03-24 19:37:39,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:37:39,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039764890] [2021-03-24 19:37:39,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:37:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:37:39,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:39,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:37:39,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:39,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:37:39,269 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:37:39,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:37:39,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:37:39,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039764890] [2021-03-24 19:37:39,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:37:39,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:37:39,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768261912] [2021-03-24 19:37:39,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:37:39,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:37:39,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:37:39,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:37:39,277 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 177 [2021-03-24 19:37:39,278 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 53 transitions, 303 flow. Second operand has 4 states, 4 states have (on average 153.25) internal successors, (613), 4 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:39,278 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:37:39,278 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 177 [2021-03-24 19:37:39,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:37:39,322 INFO L129 PetriNetUnfolder]: 38/216 cut-off events. [2021-03-24 19:37:39,323 INFO L130 PetriNetUnfolder]: For 369/378 co-relation queries the response was YES. [2021-03-24 19:37:39,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 762 conditions, 216 events. 38/216 cut-off events. For 369/378 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1336 event pairs, 5 based on Foata normal form. 1/212 useless extension candidates. Maximal degree in co-relation 740. Up to 55 conditions per place. [2021-03-24 19:37:39,324 INFO L132 encePairwiseOnDemand]: 173/177 looper letters, 3 selfloop transitions, 2 changer transitions 14/54 dead transitions. [2021-03-24 19:37:39,324 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 54 transitions, 329 flow [2021-03-24 19:37:39,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-24 19:37:39,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-24 19:37:39,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 616 transitions. [2021-03-24 19:37:39,327 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8700564971751412 [2021-03-24 19:37:39,327 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 616 transitions. [2021-03-24 19:37:39,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 616 transitions. [2021-03-24 19:37:39,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:37:39,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 616 transitions. [2021-03-24 19:37:39,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:39,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:39,331 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:39,331 INFO L185 Difference]: Start difference. First operand has 76 places, 53 transitions, 303 flow. Second operand 4 states and 616 transitions. [2021-03-24 19:37:39,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 54 transitions, 329 flow [2021-03-24 19:37:39,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 54 transitions, 295 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-03-24 19:37:39,335 INFO L241 Difference]: Finished difference. Result has 72 places, 40 transitions, 186 flow [2021-03-24 19:37:39,335 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=72, PETRI_TRANSITIONS=40} [2021-03-24 19:37:39,335 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 24 predicate places. [2021-03-24 19:37:39,335 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 40 transitions, 186 flow [2021-03-24 19:37:39,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 153.25) internal successors, (613), 4 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:39,336 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:37:39,336 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:37:39,336 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 19:37:39,336 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:37:39,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:37:39,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1139212993, now seen corresponding path program 4 times [2021-03-24 19:37:39,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:37:39,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520124195] [2021-03-24 19:37:39,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:37:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:37:39,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:39,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:37:39,420 INFO L142 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size [2021-03-24 19:37:39,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 19:37:39,443 INFO L142 QuantifierPusher]: treesize reduction 6, result has 90.6 percent of original size [2021-03-24 19:37:39,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 19:37:39,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:37:39,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:37:39,467 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:37:39,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:37:39,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:37:39,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520124195] [2021-03-24 19:37:39,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:37:39,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 19:37:39,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751258589] [2021-03-24 19:37:39,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 19:37:39,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:37:39,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 19:37:39,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-24 19:37:39,479 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 177 [2021-03-24 19:37:39,479 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 40 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 139.83333333333334) internal successors, (839), 6 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:39,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:37:39,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 177 [2021-03-24 19:37:39,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:37:39,559 INFO L129 PetriNetUnfolder]: 11/68 cut-off events. [2021-03-24 19:37:39,559 INFO L130 PetriNetUnfolder]: For 87/88 co-relation queries the response was YES. [2021-03-24 19:37:39,560 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 68 events. 11/68 cut-off events. For 87/88 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 119 event pairs, 0 based on Foata normal form. 1/67 useless extension candidates. Maximal degree in co-relation 193. Up to 17 conditions per place. [2021-03-24 19:37:39,560 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 9 selfloop transitions, 2 changer transitions 4/44 dead transitions. [2021-03-24 19:37:39,560 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 44 transitions, 242 flow [2021-03-24 19:37:39,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:37:39,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:37:39,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 982 transitions. [2021-03-24 19:37:39,563 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7925746569814366 [2021-03-24 19:37:39,563 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 982 transitions. [2021-03-24 19:37:39,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 982 transitions. [2021-03-24 19:37:39,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:37:39,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 982 transitions. [2021-03-24 19:37:39,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 140.28571428571428) internal successors, (982), 7 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:39,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:39,568 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:39,568 INFO L185 Difference]: Start difference. First operand has 72 places, 40 transitions, 186 flow. Second operand 7 states and 982 transitions. [2021-03-24 19:37:39,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 44 transitions, 242 flow [2021-03-24 19:37:39,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 44 transitions, 176 flow, removed 22 selfloop flow, removed 15 redundant places. [2021-03-24 19:37:39,572 INFO L241 Difference]: Finished difference. Result has 60 places, 40 transitions, 152 flow [2021-03-24 19:37:39,574 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=152, PETRI_PLACES=60, PETRI_TRANSITIONS=40} [2021-03-24 19:37:39,574 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 12 predicate places. [2021-03-24 19:37:39,574 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 40 transitions, 152 flow [2021-03-24 19:37:39,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 139.83333333333334) internal successors, (839), 6 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:37:39,575 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:37:39,575 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:37:39,575 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 19:37:39,575 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:37:39,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:37:39,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1530292657, now seen corresponding path program 5 times [2021-03-24 19:37:39,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:37:39,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330202814] [2021-03-24 19:37:39,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:37:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 19:37:39,622 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 19:37:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 19:37:39,671 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 19:37:39,710 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-24 19:37:39,710 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-24 19:37:39,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 19:37:39,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 07:37:39 BasicIcfg [2021-03-24 19:37:39,825 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 19:37:39,828 INFO L168 Benchmark]: Toolchain (without parser) took 8002.55 ms. Allocated memory was 255.9 MB in the beginning and 597.7 MB in the end (delta: 341.8 MB). Free memory was 233.1 MB in the beginning and 434.7 MB in the end (delta: -201.6 MB). Peak memory consumption was 139.2 MB. Max. memory is 16.0 GB. [2021-03-24 19:37:39,828 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 19:37:39,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 584.55 ms. Allocated memory was 255.9 MB in the beginning and 385.9 MB in the end (delta: 130.0 MB). Free memory was 233.1 MB in the beginning and 346.7 MB in the end (delta: -113.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-24 19:37:39,829 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.92 ms. Allocated memory is still 385.9 MB. Free memory was 346.7 MB in the beginning and 344.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:37:39,831 INFO L168 Benchmark]: Boogie Preprocessor took 36.54 ms. Allocated memory is still 385.9 MB. Free memory was 344.3 MB in the beginning and 342.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:37:39,832 INFO L168 Benchmark]: RCFGBuilder took 1461.24 ms. Allocated memory is still 385.9 MB. Free memory was 342.0 MB in the beginning and 322.8 MB in the end (delta: 19.2 MB). Peak memory consumption was 48.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:37:39,832 INFO L168 Benchmark]: TraceAbstraction took 5845.77 ms. Allocated memory was 385.9 MB in the beginning and 597.7 MB in the end (delta: 211.8 MB). Free memory was 322.8 MB in the beginning and 434.7 MB in the end (delta: -111.9 MB). Peak memory consumption was 98.9 MB. Max. memory is 16.0 GB. [2021-03-24 19:37:39,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 584.55 ms. Allocated memory was 255.9 MB in the beginning and 385.9 MB in the end (delta: 130.0 MB). Free memory was 233.1 MB in the beginning and 346.7 MB in the end (delta: -113.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 69.92 ms. Allocated memory is still 385.9 MB. Free memory was 346.7 MB in the beginning and 344.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 36.54 ms. Allocated memory is still 385.9 MB. Free memory was 344.3 MB in the beginning and 342.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1461.24 ms. Allocated memory is still 385.9 MB. Free memory was 342.0 MB in the beginning and 322.8 MB in the end (delta: 19.2 MB). Peak memory consumption was 48.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5845.77 ms. Allocated memory was 385.9 MB in the beginning and 597.7 MB in the end (delta: 211.8 MB). Free memory was 322.8 MB in the beginning and 434.7 MB in the end (delta: -111.9 MB). Peak memory consumption was 98.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2848.6ms, 109 PlacesBefore, 48 PlacesAfterwards, 101 TransitionsBefore, 39 TransitionsAfterwards, 1832 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 73 TotalNumberOfCompositions, 3136 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1791, positive: 1701, positive conditional: 0, positive unconditional: 1701, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1254, positive: 1221, positive conditional: 0, positive unconditional: 1221, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1254, positive: 1221, positive conditional: 0, positive unconditional: 1221, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1254, positive: 1218, positive conditional: 0, positive unconditional: 1218, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 286, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 275, negative conditional: 0, negative unconditional: 275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1791, positive: 480, positive conditional: 0, positive unconditional: 480, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 1254, unknown conditional: 0, unknown unconditional: 1254] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 131, Positive conditional cache size: 0, Positive unconditional cache size: 131, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0] [L713] 0 int __unbuffered_p1_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0] [L715] 0 int __unbuffered_p2_EAX = 0; [L717] 0 int __unbuffered_p2_EBX = 0; [L719] 0 int a = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0] [L721] 0 int b = 0; [L722] 0 _Bool main$tmp_guard0; [L723] 0 _Bool main$tmp_guard1; [L725] 0 int x = 0; [L727] 0 int y = 0; [L729] 0 int z = 0; [L730] 0 _Bool z$flush_delayed; [L731] 0 int z$mem_tmp; [L732] 0 _Bool z$r_buff0_thd0; [L733] 0 _Bool z$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0] [L734] 0 _Bool z$r_buff0_thd2; [L735] 0 _Bool z$r_buff0_thd3; [L736] 0 _Bool z$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0] [L737] 0 _Bool z$r_buff1_thd1; [L738] 0 _Bool z$r_buff1_thd2; [L739] 0 _Bool z$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0] [L740] 0 _Bool z$read_delayed; [L741] 0 int *z$read_delayed_var; [L742] 0 int z$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0] [L743] 0 _Bool z$w_buff0_used; [L744] 0 int z$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0] [L745] 0 _Bool z$w_buff1_used; [L746] 0 _Bool weak$$choice0; [L747] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L843] 0 pthread_t t876; [L844] FCALL, FORK 0 pthread_create(&t876, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L845] 0 pthread_t t877; [L846] FCALL, FORK 0 pthread_create(&t877, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L847] 0 pthread_t t878; [L848] FCALL, FORK 0 pthread_create(&t878, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L800] 3 z$w_buff1 = z$w_buff0 [L801] 3 z$w_buff0 = 1 [L802] 3 z$w_buff1_used = z$w_buff0_used [L803] 3 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L805] 3 z$r_buff1_thd0 = z$r_buff0_thd0 [L806] 3 z$r_buff1_thd1 = z$r_buff0_thd1 [L807] 3 z$r_buff1_thd2 = z$r_buff0_thd2 [L808] 3 z$r_buff1_thd3 = z$r_buff0_thd3 [L809] 3 z$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L812] 3 a = 1 [L815] 3 __unbuffered_p2_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L818] 3 __unbuffered_p2_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L751] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L754] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L766] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L769] 2 y = 1 [L772] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L775] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L776] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L777] 2 z$flush_delayed = weak$$choice2 [L778] 2 z$mem_tmp = z [L779] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L779] 2 z = !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L780] EXPR 2 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L780] 2 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L781] EXPR 2 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L781] 2 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L782] EXPR 2 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L782] 2 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L783] EXPR 2 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L783] 2 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L784] EXPR 2 weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L784] 2 z$r_buff0_thd2 = weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L785] EXPR 2 weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L785] 2 z$r_buff1_thd2 = weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L786] 2 __unbuffered_p1_EBX = z [L787] EXPR 2 z$flush_delayed ? z$mem_tmp : z [L787] 2 z = z$flush_delayed ? z$mem_tmp : z [L788] 2 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L821] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L821] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L822] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L822] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L823] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L823] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L824] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L824] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L825] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L825] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L828] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L830] 3 return 0; [L759] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L761] 1 return 0; [L793] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L795] 2 return 0; [L850] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L854] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L854] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L854] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L854] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L855] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L855] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L856] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L856] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L857] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L857] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L858] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L858] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L861] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 103 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 5604.0ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1161.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2951.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 93 SDtfs, 65 SDslu, 141 SDs, 0 SdLazy, 218 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 213.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 255.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=334occurred in iteration=7, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 44.6ms SsaConstructionTime, 387.3ms SatisfiabilityAnalysisTime, 753.3ms InterpolantComputationTime, 309 NumberOfCodeBlocks, 309 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 1144 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 incorrect! Received shutdown request...