/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:47:33,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:47:33,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:47:33,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:47:33,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:47:33,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:47:33,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:47:33,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:47:33,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:47:33,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:47:33,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:47:33,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:47:33,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:47:33,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:47:33,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:47:33,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:47:33,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:47:33,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:47:33,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:47:33,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:47:33,940 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 00:47:33,995 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:47:33,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:47:34,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:47:34,002 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:47:34,002 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:47:34,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:47:34,003 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:47:34,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:47:34,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:47:34,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:47:34,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:47:34,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:47:34,005 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:47:34,006 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:47:34,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:47:34,006 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:47:34,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:47:34,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:47:34,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:47:34,007 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:47:34,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:47:34,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:47:34,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:47:34,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:47:34,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:47:34,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:47:34,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:47:34,009 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:47:34,009 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:47:34,009 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:47:34,010 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:47:34,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:47:34,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:47:34,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:47:34,462 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:47:34,463 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:47:34,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2021-04-29 00:47:34,566 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/592c66edf/74030ca2cff248879cce3f21c8f9a4da/FLAGa75bc8e1c [2021-04-29 00:47:35,346 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:47:35,347 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2021-04-29 00:47:35,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/592c66edf/74030ca2cff248879cce3f21c8f9a4da/FLAGa75bc8e1c [2021-04-29 00:47:35,555 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/592c66edf/74030ca2cff248879cce3f21c8f9a4da [2021-04-29 00:47:35,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:47:35,606 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:47:35,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:47:35,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:47:35,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:47:35,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:47:35" (1/1) ... [2021-04-29 00:47:35,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e92bf0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:35, skipping insertion in model container [2021-04-29 00:47:35,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:47:35" (1/1) ... [2021-04-29 00:47:35,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:47:35,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:47:35,861 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/safe034_tso.opt.i[949,962] [2021-04-29 00:47:36,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:47:36,061 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:47:36,078 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/safe034_tso.opt.i[949,962] [2021-04-29 00:47:36,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:47:36,311 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:47:36,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:36 WrapperNode [2021-04-29 00:47:36,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:47:36,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:47:36,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:47:36,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:47:36,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:36" (1/1) ... [2021-04-29 00:47:36,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:36" (1/1) ... [2021-04-29 00:47:36,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:47:36,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:47:36,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:47:36,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:47:36,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:36" (1/1) ... [2021-04-29 00:47:36,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:36" (1/1) ... [2021-04-29 00:47:36,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:36" (1/1) ... [2021-04-29 00:47:36,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:36" (1/1) ... [2021-04-29 00:47:36,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:36" (1/1) ... [2021-04-29 00:47:36,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:36" (1/1) ... [2021-04-29 00:47:36,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:36" (1/1) ... [2021-04-29 00:47:36,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:47:36,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:47:36,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:47:36,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:47:36,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:36" (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 [2021-04-29 00:47:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:47:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:47:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:47:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:47:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:47:36,575 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:47:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:47:36,575 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:47:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:47:36,576 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:47:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:47:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:47:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:47:36,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:47:36,578 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:47:37,100 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:47:37,101 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:47:37,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:47:37 BoogieIcfgContainer [2021-04-29 00:47:37,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:47:37,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:47:37,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:47:37,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:47:37,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:47:35" (1/3) ... [2021-04-29 00:47:37,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b36a91f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:47:37, skipping insertion in model container [2021-04-29 00:47:37,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:36" (2/3) ... [2021-04-29 00:47:37,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b36a91f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:47:37, skipping insertion in model container [2021-04-29 00:47:37,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:47:37" (3/3) ... [2021-04-29 00:47:37,113 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_tso.opt.i [2021-04-29 00:47:37,120 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:47:37,126 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:47:37,127 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:47:37,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,168 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,169 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,169 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,169 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,169 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,170 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,170 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,170 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,171 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,171 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,172 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,172 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,172 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,172 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,172 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,173 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,173 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,173 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,174 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,174 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,174 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,174 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,175 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,175 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,175 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,175 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,176 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,176 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,176 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,176 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,177 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,177 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,177 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,177 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,181 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,181 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,187 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,188 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,188 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,188 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,191 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,192 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,192 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,192 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:37,195 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:47:37,220 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:47:37,250 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:47:37,250 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:47:37,250 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:47:37,251 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:47:37,251 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:47:37,251 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:47:37,251 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:47:37,251 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:47:37,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-04-29 00:47:37,314 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-04-29 00:47:37,314 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:47:37,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-29 00:47:37,321 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-04-29 00:47:37,333 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-04-29 00:47:37,339 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:47:37,365 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-29 00:47:37,373 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-29 00:47:37,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-04-29 00:47:37,424 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-04-29 00:47:37,424 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:47:37,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-29 00:47:37,431 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-29 00:47:42,419 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:47:42,590 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:47:42,753 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:47:43,203 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:47:43,491 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:47:43,775 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:47:44,977 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:45,224 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:45,425 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:47:45,610 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:47:45,808 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:47:46,022 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:47:46,236 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:47:46,441 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:47:46,630 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:47:46,823 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:47:47,044 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:47,267 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:47,491 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:47,719 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:48,036 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-29 00:47:48,338 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-29 00:47:48,586 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:48,835 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:49,028 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:47:49,208 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:47:49,415 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:49,625 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:49,891 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 00:47:50,194 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 00:47:50,331 INFO L158 LiptonReduction]: Checked pairs total: 6832 [2021-04-29 00:47:50,331 INFO L160 LiptonReduction]: Total number of compositions: 102 [2021-04-29 00:47:50,336 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13002 [2021-04-29 00:47:50,368 INFO L129 PetriNetUnfolder]: 0/61 cut-off events. [2021-04-29 00:47:50,368 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:47:50,368 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:47:50,369 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:47:50,370 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:47:50,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:47:50,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1627265742, now seen corresponding path program 1 times [2021-04-29 00:47:50,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:47:50,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352320008] [2021-04-29 00:47:50,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:47:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:47:50,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:50,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:47:50,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:47:50,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352320008] [2021-04-29 00:47:50,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:47:50,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:47:50,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756516118] [2021-04-29 00:47:50,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:47:50,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:47:50,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:47:50,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:47:50,777 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 177 [2021-04-29 00:47:50,785 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 72 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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) [2021-04-29 00:47:50,785 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:47:50,785 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 177 [2021-04-29 00:47:50,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:47:50,876 INFO L129 PetriNetUnfolder]: 25/176 cut-off events. [2021-04-29 00:47:50,876 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:47:50,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 176 events. 25/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1072 event pairs, 2 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 207. Up to 50 conditions per place. [2021-04-29 00:47:50,879 INFO L132 encePairwiseOnDemand]: 166/177 looper letters, 3 selfloop transitions, 3 changer transitions 40/79 dead transitions. [2021-04-29 00:47:50,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 79 transitions, 213 flow [2021-04-29 00:47:50,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:47:50,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:47:50,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2021-04-29 00:47:50,896 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8041431261770244 [2021-04-29 00:47:50,896 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 427 transitions. [2021-04-29 00:47:50,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 427 transitions. [2021-04-29 00:47:50,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:47:50,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 427 transitions. [2021-04-29 00:47:50,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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) [2021-04-29 00:47:50,914 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) [2021-04-29 00:47:50,915 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) [2021-04-29 00:47:50,917 INFO L185 Difference]: Start difference. First operand has 82 places, 72 transitions, 153 flow. Second operand 3 states and 427 transitions. [2021-04-29 00:47:50,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 79 transitions, 213 flow [2021-04-29 00:47:50,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 79 transitions, 210 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:47:50,924 INFO L241 Difference]: Finished difference. Result has 82 places, 39 transitions, 99 flow [2021-04-29 00:47:50,926 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=82, PETRI_TRANSITIONS=39} [2021-04-29 00:47:50,927 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2021-04-29 00:47:50,927 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:47:50,927 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 39 transitions, 99 flow [2021-04-29 00:47:50,928 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 39 transitions, 99 flow [2021-04-29 00:47:50,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 39 transitions, 99 flow [2021-04-29 00:47:50,935 INFO L129 PetriNetUnfolder]: 3/47 cut-off events. [2021-04-29 00:47:50,935 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:47:50,936 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 47 events. 3/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 166 event pairs, 1 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 60. Up to 10 conditions per place. [2021-04-29 00:47:50,937 INFO L146 LiptonReduction]: Number of co-enabled transitions 822 [2021-04-29 00:47:50,951 INFO L158 LiptonReduction]: Checked pairs total: 476 [2021-04-29 00:47:50,952 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:47:50,952 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-04-29 00:47:50,972 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 99 flow [2021-04-29 00:47:50,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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) [2021-04-29 00:47:50,973 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:47:50,974 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:47:50,974 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:47:50,974 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:47:50,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:47:50,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1094368006, now seen corresponding path program 1 times [2021-04-29 00:47:50,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:47:50,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945614956] [2021-04-29 00:47:50,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:47:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:47:51,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:51,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:47:51,104 INFO L142 QuantifierPusher]: treesize reduction 19, result has 32.1 percent of original size [2021-04-29 00:47:51,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:47:51,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:47:51,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945614956] [2021-04-29 00:47:51,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:47:51,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:47:51,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313947594] [2021-04-29 00:47:51,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:47:51,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:47:51,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:47:51,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:47:51,118 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 177 [2021-04-29 00:47:51,119 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 99 flow. Second operand has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 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) [2021-04-29 00:47:51,119 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:47:51,119 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 177 [2021-04-29 00:47:51,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:47:51,620 INFO L129 PetriNetUnfolder]: 2377/3771 cut-off events. [2021-04-29 00:47:51,620 INFO L130 PetriNetUnfolder]: For 95/120 co-relation queries the response was YES. [2021-04-29 00:47:51,633 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7634 conditions, 3771 events. 2377/3771 cut-off events. For 95/120 co-relation queries the response was YES. Maximal size of possible extension queue 954. Compared 28993 event pairs, 1113 based on Foata normal form. 82/1163 useless extension candidates. Maximal degree in co-relation 7624. Up to 2485 conditions per place. [2021-04-29 00:47:51,648 INFO L132 encePairwiseOnDemand]: 159/177 looper letters, 26 selfloop transitions, 24 changer transitions 6/74 dead transitions. [2021-04-29 00:47:51,648 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 74 transitions, 281 flow [2021-04-29 00:47:51,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:47:51,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:47:51,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 601 transitions. [2021-04-29 00:47:51,653 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6790960451977401 [2021-04-29 00:47:51,653 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 601 transitions. [2021-04-29 00:47:51,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 601 transitions. [2021-04-29 00:47:51,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:47:51,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 601 transitions. [2021-04-29 00:47:51,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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) [2021-04-29 00:47:51,660 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) [2021-04-29 00:47:51,661 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) [2021-04-29 00:47:51,662 INFO L185 Difference]: Start difference. First operand has 47 places, 39 transitions, 99 flow. Second operand 5 states and 601 transitions. [2021-04-29 00:47:51,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 74 transitions, 281 flow [2021-04-29 00:47:51,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 74 transitions, 278 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:47:51,666 INFO L241 Difference]: Finished difference. Result has 53 places, 61 transitions, 281 flow [2021-04-29 00:47:51,666 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=281, PETRI_PLACES=53, PETRI_TRANSITIONS=61} [2021-04-29 00:47:51,667 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -29 predicate places. [2021-04-29 00:47:51,667 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:47:51,667 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 61 transitions, 281 flow [2021-04-29 00:47:51,668 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 61 transitions, 281 flow [2021-04-29 00:47:51,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 61 transitions, 281 flow [2021-04-29 00:47:52,017 INFO L129 PetriNetUnfolder]: 1955/3211 cut-off events. [2021-04-29 00:47:52,017 INFO L130 PetriNetUnfolder]: For 739/759 co-relation queries the response was YES. [2021-04-29 00:47:52,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9070 conditions, 3211 events. 1955/3211 cut-off events. For 739/759 co-relation queries the response was YES. Maximal size of possible extension queue 645. Compared 23862 event pairs, 1025 based on Foata normal form. 2/953 useless extension candidates. Maximal degree in co-relation 9058. Up to 3002 conditions per place. [2021-04-29 00:47:52,067 INFO L146 LiptonReduction]: Number of co-enabled transitions 1030 [2021-04-29 00:47:52,086 INFO L158 LiptonReduction]: Checked pairs total: 865 [2021-04-29 00:47:52,086 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:47:52,086 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 419 [2021-04-29 00:47:52,088 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 61 transitions, 281 flow [2021-04-29 00:47:52,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 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) [2021-04-29 00:47:52,089 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:47:52,089 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:47:52,089 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:47:52,090 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:47:52,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:47:52,090 INFO L82 PathProgramCache]: Analyzing trace with hash 409880481, now seen corresponding path program 1 times [2021-04-29 00:47:52,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:47:52,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424933075] [2021-04-29 00:47:52,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:47:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:47:52,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:52,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:47:52,197 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:47:52,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:47:52,209 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:47:52,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:47:52,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:47:52,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424933075] [2021-04-29 00:47:52,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:47:52,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:47:52,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316388103] [2021-04-29 00:47:52,248 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:47:52,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:47:52,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:47:52,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:47:52,256 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 177 [2021-04-29 00:47:52,257 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 61 transitions, 281 flow. Second operand has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 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) [2021-04-29 00:47:52,258 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:47:52,258 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 177 [2021-04-29 00:47:52,258 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:47:52,935 INFO L129 PetriNetUnfolder]: 2155/3927 cut-off events. [2021-04-29 00:47:52,935 INFO L130 PetriNetUnfolder]: For 1534/1951 co-relation queries the response was YES. [2021-04-29 00:47:52,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14904 conditions, 3927 events. 2155/3927 cut-off events. For 1534/1951 co-relation queries the response was YES. Maximal size of possible extension queue 1188. Compared 33823 event pairs, 252 based on Foata normal form. 98/1379 useless extension candidates. Maximal degree in co-relation 14890. Up to 3605 conditions per place. [2021-04-29 00:47:52,963 INFO L132 encePairwiseOnDemand]: 159/177 looper letters, 21 selfloop transitions, 46 changer transitions 12/97 dead transitions. [2021-04-29 00:47:52,964 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 97 transitions, 634 flow [2021-04-29 00:47:52,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:47:52,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:47:52,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 840 transitions. [2021-04-29 00:47:52,968 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6779661016949152 [2021-04-29 00:47:52,968 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 840 transitions. [2021-04-29 00:47:52,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 840 transitions. [2021-04-29 00:47:52,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:47:52,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 840 transitions. [2021-04-29 00:47:52,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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) [2021-04-29 00:47:52,976 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) [2021-04-29 00:47:52,977 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) [2021-04-29 00:47:52,977 INFO L185 Difference]: Start difference. First operand has 53 places, 61 transitions, 281 flow. Second operand 7 states and 840 transitions. [2021-04-29 00:47:52,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 97 transitions, 634 flow [2021-04-29 00:47:53,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 97 transitions, 634 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:47:53,008 INFO L241 Difference]: Finished difference. Result has 62 places, 83 transitions, 587 flow [2021-04-29 00:47:53,008 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=587, PETRI_PLACES=62, PETRI_TRANSITIONS=83} [2021-04-29 00:47:53,008 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -20 predicate places. [2021-04-29 00:47:53,009 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:47:53,009 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 83 transitions, 587 flow [2021-04-29 00:47:53,011 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 83 transitions, 587 flow [2021-04-29 00:47:53,012 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 83 transitions, 587 flow [2021-04-29 00:47:53,331 INFO L129 PetriNetUnfolder]: 1135/2724 cut-off events. [2021-04-29 00:47:53,332 INFO L130 PetriNetUnfolder]: For 2919/3076 co-relation queries the response was YES. [2021-04-29 00:47:53,343 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11741 conditions, 2724 events. 1135/2724 cut-off events. For 2919/3076 co-relation queries the response was YES. Maximal size of possible extension queue 678. Compared 28923 event pairs, 252 based on Foata normal form. 3/839 useless extension candidates. Maximal degree in co-relation 11724. Up to 2477 conditions per place. [2021-04-29 00:47:53,379 INFO L146 LiptonReduction]: Number of co-enabled transitions 1256 [2021-04-29 00:47:53,436 INFO L158 LiptonReduction]: Checked pairs total: 1586 [2021-04-29 00:47:53,436 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:47:53,436 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 427 [2021-04-29 00:47:53,440 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 83 transitions, 587 flow [2021-04-29 00:47:53,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 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) [2021-04-29 00:47:53,441 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:47:53,442 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:47:53,442 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:47:53,442 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:47:53,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:47:53,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1093454434, now seen corresponding path program 1 times [2021-04-29 00:47:53,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:47:53,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981308460] [2021-04-29 00:47:53,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:47:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:47:53,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:53,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:47:53,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:53,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:47:53,579 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:47:53,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:47:53,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:47:53,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981308460] [2021-04-29 00:47:53,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:47:53,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:47:53,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777778603] [2021-04-29 00:47:53,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:47:53,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:47:53,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:47:53,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:47:53,601 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 177 [2021-04-29 00:47:53,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 83 transitions, 587 flow. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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) [2021-04-29 00:47:53,603 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:47:53,603 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 177 [2021-04-29 00:47:53,603 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:47:54,535 INFO L129 PetriNetUnfolder]: 2511/6703 cut-off events. [2021-04-29 00:47:54,535 INFO L130 PetriNetUnfolder]: For 17765/34645 co-relation queries the response was YES. [2021-04-29 00:47:54,581 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28839 conditions, 6703 events. 2511/6703 cut-off events. For 17765/34645 co-relation queries the response was YES. Maximal size of possible extension queue 2097. Compared 84759 event pairs, 459 based on Foata normal form. 122/2027 useless extension candidates. Maximal degree in co-relation 28820. Up to 6041 conditions per place. [2021-04-29 00:47:54,622 INFO L132 encePairwiseOnDemand]: 170/177 looper letters, 10 selfloop transitions, 13 changer transitions 0/97 dead transitions. [2021-04-29 00:47:54,622 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 97 transitions, 687 flow [2021-04-29 00:47:54,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:47:54,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:47:54,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 570 transitions. [2021-04-29 00:47:54,625 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6440677966101694 [2021-04-29 00:47:54,625 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 570 transitions. [2021-04-29 00:47:54,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 570 transitions. [2021-04-29 00:47:54,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:47:54,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 570 transitions. [2021-04-29 00:47:54,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 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) [2021-04-29 00:47:54,631 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) [2021-04-29 00:47:54,632 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) [2021-04-29 00:47:54,632 INFO L185 Difference]: Start difference. First operand has 62 places, 83 transitions, 587 flow. Second operand 5 states and 570 transitions. [2021-04-29 00:47:54,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 97 transitions, 687 flow [2021-04-29 00:47:55,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 97 transitions, 573 flow, removed 36 selfloop flow, removed 3 redundant places. [2021-04-29 00:47:55,511 INFO L241 Difference]: Finished difference. Result has 66 places, 94 transitions, 573 flow [2021-04-29 00:47:55,512 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=573, PETRI_PLACES=66, PETRI_TRANSITIONS=94} [2021-04-29 00:47:55,512 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -16 predicate places. [2021-04-29 00:47:55,512 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:47:55,513 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 94 transitions, 573 flow [2021-04-29 00:47:55,513 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 94 transitions, 573 flow [2021-04-29 00:47:55,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 94 transitions, 573 flow [2021-04-29 00:47:56,333 INFO L129 PetriNetUnfolder]: 2513/6890 cut-off events. [2021-04-29 00:47:56,333 INFO L130 PetriNetUnfolder]: For 7186/8306 co-relation queries the response was YES. [2021-04-29 00:47:56,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24979 conditions, 6890 events. 2513/6890 cut-off events. For 7186/8306 co-relation queries the response was YES. Maximal size of possible extension queue 1934. Compared 88850 event pairs, 468 based on Foata normal form. 11/1888 useless extension candidates. Maximal degree in co-relation 24959. Up to 3722 conditions per place. [2021-04-29 00:47:56,458 INFO L146 LiptonReduction]: Number of co-enabled transitions 1932 [2021-04-29 00:47:56,500 INFO L158 LiptonReduction]: Checked pairs total: 280 [2021-04-29 00:47:56,501 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:47:56,501 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 989 [2021-04-29 00:47:56,503 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 94 transitions, 573 flow [2021-04-29 00:47:56,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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) [2021-04-29 00:47:56,504 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:47:56,504 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:47:56,504 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:47:56,504 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:47:56,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:47:56,505 INFO L82 PathProgramCache]: Analyzing trace with hash -464015656, now seen corresponding path program 1 times [2021-04-29 00:47:56,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:47:56,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796117551] [2021-04-29 00:47:56,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:47:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:47:56,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:56,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:47:56,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:56,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:47:56,568 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:47:56,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:47:56,576 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:47:56,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:47:56,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:47:56,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796117551] [2021-04-29 00:47:56,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:47:56,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:47:56,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659682126] [2021-04-29 00:47:56,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:47:56,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:47:56,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:47:56,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:47:56,594 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 177 [2021-04-29 00:47:56,595 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 94 transitions, 573 flow. Second operand has 6 states, 6 states have (on average 109.83333333333333) internal successors, (659), 6 states have internal predecessors, (659), 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) [2021-04-29 00:47:56,596 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:47:56,596 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 177 [2021-04-29 00:47:56,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:47:57,967 INFO L129 PetriNetUnfolder]: 2069/6605 cut-off events. [2021-04-29 00:47:57,967 INFO L130 PetriNetUnfolder]: For 8513/23055 co-relation queries the response was YES. [2021-04-29 00:47:57,999 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29489 conditions, 6605 events. 2069/6605 cut-off events. For 8513/23055 co-relation queries the response was YES. Maximal size of possible extension queue 1608. Compared 89623 event pairs, 2 based on Foata normal form. 198/2229 useless extension candidates. Maximal degree in co-relation 29467. Up to 3248 conditions per place. [2021-04-29 00:47:58,023 INFO L132 encePairwiseOnDemand]: 159/177 looper letters, 5 selfloop transitions, 61 changer transitions 24/119 dead transitions. [2021-04-29 00:47:58,023 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 119 transitions, 916 flow [2021-04-29 00:47:58,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 00:47:58,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 00:47:58,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1061 transitions. [2021-04-29 00:47:58,028 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6660389202762084 [2021-04-29 00:47:58,028 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1061 transitions. [2021-04-29 00:47:58,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1061 transitions. [2021-04-29 00:47:58,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:47:58,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1061 transitions. [2021-04-29 00:47:58,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 117.88888888888889) internal successors, (1061), 9 states have internal predecessors, (1061), 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) [2021-04-29 00:47:58,037 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) [2021-04-29 00:47:58,038 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) [2021-04-29 00:47:58,038 INFO L185 Difference]: Start difference. First operand has 66 places, 94 transitions, 573 flow. Second operand 9 states and 1061 transitions. [2021-04-29 00:47:58,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 119 transitions, 916 flow [2021-04-29 00:47:58,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 119 transitions, 914 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-04-29 00:47:58,379 INFO L241 Difference]: Finished difference. Result has 77 places, 93 transitions, 731 flow [2021-04-29 00:47:58,379 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=731, PETRI_PLACES=77, PETRI_TRANSITIONS=93} [2021-04-29 00:47:58,380 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -5 predicate places. [2021-04-29 00:47:58,380 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:47:58,380 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 93 transitions, 731 flow [2021-04-29 00:47:58,380 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 93 transitions, 731 flow [2021-04-29 00:47:58,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 93 transitions, 731 flow [2021-04-29 00:47:58,784 INFO L129 PetriNetUnfolder]: 986/3929 cut-off events. [2021-04-29 00:47:58,784 INFO L130 PetriNetUnfolder]: For 16444/27722 co-relation queries the response was YES. [2021-04-29 00:47:58,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17369 conditions, 3929 events. 986/3929 cut-off events. For 16444/27722 co-relation queries the response was YES. Maximal size of possible extension queue 1845. Compared 56375 event pairs, 0 based on Foata normal form. 9/994 useless extension candidates. Maximal degree in co-relation 17344. Up to 2664 conditions per place. [2021-04-29 00:47:58,909 INFO L146 LiptonReduction]: Number of co-enabled transitions 1866 [2021-04-29 00:47:58,960 INFO L158 LiptonReduction]: Checked pairs total: 265 [2021-04-29 00:47:58,960 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:47:58,960 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 580 [2021-04-29 00:47:58,964 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 93 transitions, 731 flow [2021-04-29 00:47:58,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 109.83333333333333) internal successors, (659), 6 states have internal predecessors, (659), 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) [2021-04-29 00:47:58,965 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:47:58,965 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:47:58,965 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:47:58,965 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:47:58,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:47:58,966 INFO L82 PathProgramCache]: Analyzing trace with hash -2084911323, now seen corresponding path program 1 times [2021-04-29 00:47:58,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:47:58,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957810641] [2021-04-29 00:47:58,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:47:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:47:59,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:59,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:47:59,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:59,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:47:59,050 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:47:59,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:47:59,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:47:59,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957810641] [2021-04-29 00:47:59,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:47:59,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:47:59,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942810179] [2021-04-29 00:47:59,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:47:59,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:47:59,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:47:59,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:47:59,068 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 177 [2021-04-29 00:47:59,068 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 93 transitions, 731 flow. Second operand has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 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) [2021-04-29 00:47:59,069 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:47:59,069 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 177 [2021-04-29 00:47:59,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:47:59,595 INFO L129 PetriNetUnfolder]: 1098/4796 cut-off events. [2021-04-29 00:47:59,596 INFO L130 PetriNetUnfolder]: For 16507/26203 co-relation queries the response was YES. [2021-04-29 00:47:59,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21221 conditions, 4796 events. 1098/4796 cut-off events. For 16507/26203 co-relation queries the response was YES. Maximal size of possible extension queue 1899. Compared 71881 event pairs, 0 based on Foata normal form. 45/1319 useless extension candidates. Maximal degree in co-relation 21203. Up to 3168 conditions per place. [2021-04-29 00:47:59,634 INFO L132 encePairwiseOnDemand]: 170/177 looper letters, 0 selfloop transitions, 0 changer transitions 107/107 dead transitions. [2021-04-29 00:47:59,634 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 107 transitions, 868 flow [2021-04-29 00:47:59,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:47:59,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:47:59,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 572 transitions. [2021-04-29 00:47:59,637 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6463276836158192 [2021-04-29 00:47:59,637 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 572 transitions. [2021-04-29 00:47:59,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 572 transitions. [2021-04-29 00:47:59,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:47:59,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 572 transitions. [2021-04-29 00:47:59,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.4) internal successors, (572), 5 states have internal predecessors, (572), 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) [2021-04-29 00:47:59,642 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) [2021-04-29 00:47:59,643 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) [2021-04-29 00:47:59,643 INFO L185 Difference]: Start difference. First operand has 74 places, 93 transitions, 731 flow. Second operand 5 states and 572 transitions. [2021-04-29 00:47:59,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 107 transitions, 868 flow [2021-04-29 00:48:00,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 107 transitions, 628 flow, removed 42 selfloop flow, removed 11 redundant places. [2021-04-29 00:48:00,948 INFO L241 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2021-04-29 00:48:00,948 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2021-04-29 00:48:00,948 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -16 predicate places. [2021-04-29 00:48:00,948 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:48:00,949 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 0 transitions, 0 flow [2021-04-29 00:48:00,949 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 0 transitions, 0 flow [2021-04-29 00:48:00,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:48:00,949 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:48:00,949 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:48:00,950 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 00:48:00,950 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:48:00,950 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:48:00,950 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:48:00,950 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:48:00,952 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:48:00,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 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) [2021-04-29 00:48:00,953 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:48:00,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:48:00 BasicIcfg [2021-04-29 00:48:00,957 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:48:00,959 INFO L168 Benchmark]: Toolchain (without parser) took 25397.24 ms. Allocated memory was 308.3 MB in the beginning and 750.8 MB in the end (delta: 442.5 MB). Free memory was 282.6 MB in the beginning and 610.1 MB in the end (delta: -327.5 MB). Peak memory consumption was 116.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:48:00,959 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 308.3 MB. Free memory is still 276.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:48:00,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.78 ms. Allocated memory is still 308.3 MB. Free memory was 279.5 MB in the beginning and 279.9 MB in the end (delta: -404.6 kB). Peak memory consumption was 31.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:48:00,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.20 ms. Allocated memory is still 308.3 MB. Free memory was 279.9 MB in the beginning and 277.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:48:00,961 INFO L168 Benchmark]: Boogie Preprocessor took 29.94 ms. Allocated memory is still 308.3 MB. Free memory was 277.8 MB in the beginning and 276.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:48:00,961 INFO L168 Benchmark]: RCFGBuilder took 651.63 ms. Allocated memory is still 308.3 MB. Free memory was 276.7 MB in the beginning and 253.6 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:48:00,962 INFO L168 Benchmark]: TraceAbstraction took 23852.13 ms. Allocated memory was 308.3 MB in the beginning and 750.8 MB in the end (delta: 442.5 MB). Free memory was 253.6 MB in the beginning and 610.1 MB in the end (delta: -356.5 MB). Peak memory consumption was 87.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:48:00,965 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 308.3 MB. Free memory is still 276.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 703.78 ms. Allocated memory is still 308.3 MB. Free memory was 279.5 MB in the beginning and 279.9 MB in the end (delta: -404.6 kB). Peak memory consumption was 31.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 105.20 ms. Allocated memory is still 308.3 MB. Free memory was 279.9 MB in the beginning and 277.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.94 ms. Allocated memory is still 308.3 MB. Free memory was 277.8 MB in the beginning and 276.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 651.63 ms. Allocated memory is still 308.3 MB. Free memory was 276.7 MB in the beginning and 253.6 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 23852.13 ms. Allocated memory was 308.3 MB in the beginning and 750.8 MB in the end (delta: 442.5 MB). Free memory was 253.6 MB in the beginning and 610.1 MB in the end (delta: -356.5 MB). Peak memory consumption was 87.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12958.4ms, 69 PlacesBefore, 82 PlacesAfterwards, 60 TransitionsBefore, 72 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 102 TotalNumberOfCompositions, 6832 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2314, positive: 2108, positive conditional: 2108, positive unconditional: 0, negative: 206, negative conditional: 206, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1068, positive: 993, positive conditional: 0, positive unconditional: 993, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1068, positive: 993, positive conditional: 0, positive unconditional: 993, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1068, positive: 962, positive conditional: 0, positive unconditional: 962, negative: 106, negative conditional: 0, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 106, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 551, positive: 160, positive conditional: 0, positive unconditional: 160, negative: 391, negative conditional: 0, negative unconditional: 391, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2314, positive: 1115, positive conditional: 1115, positive unconditional: 0, negative: 131, negative conditional: 131, negative unconditional: 0, unknown: 1068, unknown conditional: 1068, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1061, Positive cache size: 986, Positive conditional cache size: 986, Positive unconditional cache size: 0, Negative cache size: 75, Negative conditional cache size: 75, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.0ms, 82 PlacesBefore, 47 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 822 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 476 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 195, positive: 178, positive conditional: 178, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35, positive: 33, positive conditional: 3, positive unconditional: 30, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 35, positive: 33, positive conditional: 3, positive unconditional: 30, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 35, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 195, positive: 145, positive conditional: 145, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 35, unknown conditional: 35, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1096, Positive cache size: 1019, Positive conditional cache size: 1019, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 418.6ms, 53 PlacesBefore, 53 PlacesAfterwards, 61 TransitionsBefore, 61 TransitionsAfterwards, 1030 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 865 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 639, positive: 620, positive conditional: 620, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 120, positive: 120, positive conditional: 68, positive unconditional: 52, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 120, positive: 120, positive conditional: 68, positive unconditional: 52, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 120, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 639, positive: 500, positive conditional: 500, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 120, unknown conditional: 120, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1216, Positive cache size: 1139, Positive conditional cache size: 1139, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 425.3ms, 62 PlacesBefore, 62 PlacesAfterwards, 83 TransitionsBefore, 83 TransitionsAfterwards, 1256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1586 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 345, positive: 317, positive conditional: 317, positive unconditional: 0, negative: 28, negative conditional: 28, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 66, positive: 63, positive conditional: 44, positive unconditional: 19, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 66, positive: 63, positive conditional: 44, positive unconditional: 19, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 66, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 26, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 345, positive: 254, positive conditional: 254, positive unconditional: 0, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 66, unknown conditional: 66, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1282, Positive cache size: 1202, Positive conditional cache size: 1202, Positive unconditional cache size: 0, Negative cache size: 80, Negative conditional cache size: 80, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 987.7ms, 66 PlacesBefore, 66 PlacesAfterwards, 94 TransitionsBefore, 94 TransitionsAfterwards, 1932 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 280 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 160, positive: 155, positive conditional: 155, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21, positive: 20, positive conditional: 18, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 21, positive: 20, positive conditional: 18, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 21, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 160, positive: 135, positive conditional: 135, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 21, unknown conditional: 21, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1303, Positive cache size: 1222, Positive conditional cache size: 1222, Positive unconditional cache size: 0, Negative cache size: 81, Negative conditional cache size: 81, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 579.9ms, 77 PlacesBefore, 74 PlacesAfterwards, 93 TransitionsBefore, 93 TransitionsAfterwards, 1866 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 265 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 155, positive: 150, positive conditional: 150, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 20, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 155, positive: 130, positive conditional: 130, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 20, unknown conditional: 20, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1323, Positive cache size: 1242, Positive conditional cache size: 1242, Positive unconditional cache size: 0, Negative cache size: 81, Negative conditional cache size: 81, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4ms, 66 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1323, Positive cache size: 1242, Positive conditional cache size: 1242, Positive unconditional cache size: 0, Negative cache size: 81, Negative conditional cache size: 81, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 21.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 23709.1ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 7054.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13094.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 53 SDtfs, 66 SDslu, 24 SDs, 0 SdLazy, 341 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 409.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 160.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=731occurred in iteration=5, InterpolantAutomatonStates: 34, 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: 23.0ms SsaConstructionTime, 234.5ms SatisfiabilityAnalysisTime, 591.4ms InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 299 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...