/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:39:42,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:39:42,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:39:43,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:39:43,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:39:43,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:39:43,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:39:43,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:39:43,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:39:43,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:39:43,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:39:43,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:39:43,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:39:43,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:39:43,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:39:43,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:39:43,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:39:43,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:39:43,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:39:43,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:39:43,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:39:43,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:39:43,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:39:43,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:39:43,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:39:43,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 10:39:43,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 10:39:43,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 10:39:43,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 10:39:43,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 10:39:43,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 10:39:43,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 10:39:43,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 10:39:43,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:39:43,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:39:43,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:39:43,066 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:39:43,106 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:39:43,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:39:43,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:39:43,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:39:43,110 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:39:43,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:39:43,111 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:39:43,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:39:43,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:39:43,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:39:43,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:39:43,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:39:43,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:39:43,113 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:39:43,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:39:43,113 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:39:43,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:39:43,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:39:43,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:39:43,114 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:39:43,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:39:43,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:39:43,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:39:43,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:39:43,115 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:39:43,115 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:39:43,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:39:43,116 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:39:43,116 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:39:43,116 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:39:43,116 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:39:43,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:39:43,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:39:43,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:39:43,459 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:39:43,460 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:39:43,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2021-03-26 10:39:43,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cdcbacfc/be6013e61cee4093bd1bd74ef820a205/FLAGe56fb1861 [2021-03-26 10:39:44,058 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:39:44,059 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2021-03-26 10:39:44,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cdcbacfc/be6013e61cee4093bd1bd74ef820a205/FLAGe56fb1861 [2021-03-26 10:39:44,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cdcbacfc/be6013e61cee4093bd1bd74ef820a205 [2021-03-26 10:39:44,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:39:44,340 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:39:44,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:39:44,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:39:44,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:39:44,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:39:44" (1/1) ... [2021-03-26 10:39:44,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19af7bd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:39:44, skipping insertion in model container [2021-03-26 10:39:44,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:39:44" (1/1) ... [2021-03-26 10:39:44,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:39:44,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:39:44,545 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/safe026_tso.oepc.i[950,963] [2021-03-26 10:39:44,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:39:44,749 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:39:44,760 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/safe026_tso.oepc.i[950,963] [2021-03-26 10:39:44,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:39:44,865 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:39:44,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:39:44 WrapperNode [2021-03-26 10:39:44,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:39:44,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:39:44,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:39:44,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:39:44,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:39:44" (1/1) ... [2021-03-26 10:39:44,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:39:44" (1/1) ... [2021-03-26 10:39:44,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:39:44,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:39:44,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:39:44,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:39:44,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:39:44" (1/1) ... [2021-03-26 10:39:44,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:39:44" (1/1) ... [2021-03-26 10:39:44,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:39:44" (1/1) ... [2021-03-26 10:39:44,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:39:44" (1/1) ... [2021-03-26 10:39:44,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:39:44" (1/1) ... [2021-03-26 10:39:44,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:39:44" (1/1) ... [2021-03-26 10:39:44,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:39:44" (1/1) ... [2021-03-26 10:39:44,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:39:44,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:39:44,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:39:44,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:39:44,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:39:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:39:45,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:39:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:39:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:39:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:39:45,034 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:39:45,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:39:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:39:45,035 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:39:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:39:45,035 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:39:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:39:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:39:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:39:45,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:39:45,037 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:39:45,335 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:39:45,335 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 10:39:45,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:39:45 BoogieIcfgContainer [2021-03-26 10:39:45,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:39:45,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:39:45,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:39:45,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:39:45,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:39:44" (1/3) ... [2021-03-26 10:39:45,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b94a041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:39:45, skipping insertion in model container [2021-03-26 10:39:45,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:39:44" (2/3) ... [2021-03-26 10:39:45,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b94a041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:39:45, skipping insertion in model container [2021-03-26 10:39:45,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:39:45" (3/3) ... [2021-03-26 10:39:45,344 INFO L111 eAbstractionObserver]: Analyzing ICFG safe026_tso.oepc.i [2021-03-26 10:39:45,348 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:39:45,352 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 10:39:45,353 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:39:45,374 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,374 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,375 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,375 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,375 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,375 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,375 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,375 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,376 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,377 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,377 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,377 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,377 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,377 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,377 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,377 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,378 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,378 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,378 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,378 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,379 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,379 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,379 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,379 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,379 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,379 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,379 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,380 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,380 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,380 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,380 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,380 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,383 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,383 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,386 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,387 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,389 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,389 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,389 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,389 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:39:45,390 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:39:45,406 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 10:39:45,422 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:39:45,423 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:39:45,423 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:39:45,423 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:39:45,423 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:39:45,423 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:39:45,423 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:39:45,423 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:39:45,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-03-26 10:39:45,493 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-03-26 10:39:45,494 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:39:45,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-03-26 10:39:45,497 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-03-26 10:39:45,505 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-03-26 10:39:45,506 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:39:45,518 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-03-26 10:39:45,523 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-03-26 10:39:45,525 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-03-26 10:39:45,554 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-03-26 10:39:45,554 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:39:45,555 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 1/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-03-26 10:39:45,557 INFO L142 LiptonReduction]: Number of co-enabled transitions 804 [2021-03-26 10:39:47,022 INFO L154 LiptonReduction]: Checked pairs total: 784 [2021-03-26 10:39:47,022 INFO L156 LiptonReduction]: Total number of compositions: 37 [2021-03-26 10:39:47,024 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1519 [2021-03-26 10:39:47,046 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-03-26 10:39:47,047 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:39:47,047 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:39:47,047 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:39:47,048 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:39:47,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:39:47,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1769401119, now seen corresponding path program 1 times [2021-03-26 10:39:47,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:39:47,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685433042] [2021-03-26 10:39:47,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:39:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:39:47,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:47,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:39:47,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:47,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:39:47,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:39:47,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685433042] [2021-03-26 10:39:47,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:39:47,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:39:47,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037124046] [2021-03-26 10:39:47,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:39:47,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:39:47,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:39:47,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:39:47,353 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 110 [2021-03-26 10:39:47,355 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:47,355 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:39:47,355 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 110 [2021-03-26 10:39:47,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:39:47,377 INFO L129 PetriNetUnfolder]: 12/55 cut-off events. [2021-03-26 10:39:47,377 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:39:47,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 55 events. 12/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 149 event pairs, 6 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 79. Up to 25 conditions per place. [2021-03-26 10:39:47,379 INFO L132 encePairwiseOnDemand]: 106/110 looper letters, 5 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2021-03-26 10:39:47,379 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 24 transitions, 73 flow [2021-03-26 10:39:47,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:39:47,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:39:47,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2021-03-26 10:39:47,389 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8909090909090909 [2021-03-26 10:39:47,390 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 294 transitions. [2021-03-26 10:39:47,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 294 transitions. [2021-03-26 10:39:47,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:39:47,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 294 transitions. [2021-03-26 10:39:47,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:47,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:47,400 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:47,402 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 3 states and 294 transitions. [2021-03-26 10:39:47,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 24 transitions, 73 flow [2021-03-26 10:39:47,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 70 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 10:39:47,406 INFO L241 Difference]: Finished difference. Result has 31 places, 23 transitions, 67 flow [2021-03-26 10:39:47,408 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=31, PETRI_TRANSITIONS=23} [2021-03-26 10:39:47,408 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 0 predicate places. [2021-03-26 10:39:47,408 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:39:47,409 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 23 transitions, 67 flow [2021-03-26 10:39:47,409 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 23 transitions, 67 flow [2021-03-26 10:39:47,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 23 transitions, 67 flow [2021-03-26 10:39:47,414 INFO L129 PetriNetUnfolder]: 3/29 cut-off events. [2021-03-26 10:39:47,414 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 10:39:47,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 29 events. 3/29 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 1 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 39. Up to 10 conditions per place. [2021-03-26 10:39:47,414 INFO L142 LiptonReduction]: Number of co-enabled transitions 164 [2021-03-26 10:39:47,933 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 10:39:48,170 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 10:39:48,235 INFO L154 LiptonReduction]: Checked pairs total: 285 [2021-03-26 10:39:48,236 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 10:39:48,236 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 828 [2021-03-26 10:39:48,237 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 57 flow [2021-03-26 10:39:48,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,237 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:39:48,237 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:39:48,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:39:48,238 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:39:48,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:39:48,238 INFO L82 PathProgramCache]: Analyzing trace with hash -983140600, now seen corresponding path program 1 times [2021-03-26 10:39:48,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:39:48,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194454964] [2021-03-26 10:39:48,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:39:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:39:48,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:48,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:39:48,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:48,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:39:48,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:39:48,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194454964] [2021-03-26 10:39:48,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:39:48,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:39:48,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027254208] [2021-03-26 10:39:48,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:39:48,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:39:48,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:39:48,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:39:48,296 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 115 [2021-03-26 10:39:48,297 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,297 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:39:48,297 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 115 [2021-03-26 10:39:48,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:39:48,311 INFO L129 PetriNetUnfolder]: 3/24 cut-off events. [2021-03-26 10:39:48,311 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-26 10:39:48,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 24 events. 3/24 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 38 event pairs, 1 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 41. Up to 10 conditions per place. [2021-03-26 10:39:48,312 INFO L132 encePairwiseOnDemand]: 112/115 looper letters, 1 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2021-03-26 10:39:48,312 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 18 transitions, 63 flow [2021-03-26 10:39:48,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:39:48,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:39:48,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2021-03-26 10:39:48,314 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.881159420289855 [2021-03-26 10:39:48,315 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2021-03-26 10:39:48,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2021-03-26 10:39:48,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:39:48,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2021-03-26 10:39:48,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,318 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,318 INFO L185 Difference]: Start difference. First operand has 26 places, 18 transitions, 57 flow. Second operand 3 states and 304 transitions. [2021-03-26 10:39:48,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 18 transitions, 63 flow [2021-03-26 10:39:48,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 18 transitions, 60 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:39:48,319 INFO L241 Difference]: Finished difference. Result has 28 places, 18 transitions, 62 flow [2021-03-26 10:39:48,319 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2021-03-26 10:39:48,319 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2021-03-26 10:39:48,319 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:39:48,320 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 18 transitions, 62 flow [2021-03-26 10:39:48,320 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 18 transitions, 62 flow [2021-03-26 10:39:48,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 18 transitions, 62 flow [2021-03-26 10:39:48,324 INFO L129 PetriNetUnfolder]: 3/24 cut-off events. [2021-03-26 10:39:48,324 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 10:39:48,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 24 events. 3/24 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 1 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 40. Up to 10 conditions per place. [2021-03-26 10:39:48,325 INFO L142 LiptonReduction]: Number of co-enabled transitions 122 [2021-03-26 10:39:48,336 INFO L154 LiptonReduction]: Checked pairs total: 71 [2021-03-26 10:39:48,336 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:39:48,336 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-26 10:39:48,337 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 62 flow [2021-03-26 10:39:48,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,338 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:39:48,338 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:39:48,338 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:39:48,338 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:39:48,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:39:48,339 INFO L82 PathProgramCache]: Analyzing trace with hash 2137410326, now seen corresponding path program 1 times [2021-03-26 10:39:48,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:39:48,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680520019] [2021-03-26 10:39:48,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:39:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:39:48,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:48,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:39:48,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:48,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:39:48,427 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:39:48,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:39:48,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:39:48,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680520019] [2021-03-26 10:39:48,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:39:48,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:39:48,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828522703] [2021-03-26 10:39:48,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:39:48,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:39:48,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:39:48,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:39:48,455 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 115 [2021-03-26 10:39:48,456 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 62 flow. Second operand has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,456 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:39:48,456 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 115 [2021-03-26 10:39:48,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:39:48,509 INFO L129 PetriNetUnfolder]: 15/67 cut-off events. [2021-03-26 10:39:48,510 INFO L130 PetriNetUnfolder]: For 35/37 co-relation queries the response was YES. [2021-03-26 10:39:48,511 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 67 events. 15/67 cut-off events. For 35/37 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 253 event pairs, 3 based on Foata normal form. 10/76 useless extension candidates. Maximal degree in co-relation 151. Up to 27 conditions per place. [2021-03-26 10:39:48,511 INFO L132 encePairwiseOnDemand]: 109/115 looper letters, 5 selfloop transitions, 6 changer transitions 3/24 dead transitions. [2021-03-26 10:39:48,511 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 24 transitions, 109 flow [2021-03-26 10:39:48,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:39:48,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:39:48,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 471 transitions. [2021-03-26 10:39:48,519 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8191304347826087 [2021-03-26 10:39:48,519 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 471 transitions. [2021-03-26 10:39:48,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 471 transitions. [2021-03-26 10:39:48,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:39:48,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 471 transitions. [2021-03-26 10:39:48,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.2) internal successors, (471), 5 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,525 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,525 INFO L185 Difference]: Start difference. First operand has 28 places, 18 transitions, 62 flow. Second operand 5 states and 471 transitions. [2021-03-26 10:39:48,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 24 transitions, 109 flow [2021-03-26 10:39:48,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 103 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:39:48,527 INFO L241 Difference]: Finished difference. Result has 33 places, 20 transitions, 93 flow [2021-03-26 10:39:48,527 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=93, PETRI_PLACES=33, PETRI_TRANSITIONS=20} [2021-03-26 10:39:48,528 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2021-03-26 10:39:48,528 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:39:48,528 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 20 transitions, 93 flow [2021-03-26 10:39:48,529 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 20 transitions, 93 flow [2021-03-26 10:39:48,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 20 transitions, 93 flow [2021-03-26 10:39:48,535 INFO L129 PetriNetUnfolder]: 7/47 cut-off events. [2021-03-26 10:39:48,535 INFO L130 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2021-03-26 10:39:48,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 47 events. 7/47 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 145 event pairs, 3 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 112. Up to 16 conditions per place. [2021-03-26 10:39:48,536 INFO L142 LiptonReduction]: Number of co-enabled transitions 114 [2021-03-26 10:39:48,538 INFO L154 LiptonReduction]: Checked pairs total: 77 [2021-03-26 10:39:48,538 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:39:48,539 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-26 10:39:48,540 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 20 transitions, 93 flow [2021-03-26 10:39:48,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,540 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:39:48,540 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:39:48,540 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:39:48,540 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:39:48,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:39:48,541 INFO L82 PathProgramCache]: Analyzing trace with hash 2138332886, now seen corresponding path program 2 times [2021-03-26 10:39:48,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:39:48,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506616679] [2021-03-26 10:39:48,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:39:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:39:48,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:48,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:39:48,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:48,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:39:48,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:39:48,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506616679] [2021-03-26 10:39:48,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:39:48,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:39:48,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639150881] [2021-03-26 10:39:48,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:39:48,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:39:48,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:39:48,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:39:48,595 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 115 [2021-03-26 10:39:48,595 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 93 flow. Second operand has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,596 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:39:48,596 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 115 [2021-03-26 10:39:48,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:39:48,650 INFO L129 PetriNetUnfolder]: 87/185 cut-off events. [2021-03-26 10:39:48,651 INFO L130 PetriNetUnfolder]: For 570/620 co-relation queries the response was YES. [2021-03-26 10:39:48,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 185 events. 87/185 cut-off events. For 570/620 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 865 event pairs, 31 based on Foata normal form. 29/197 useless extension candidates. Maximal degree in co-relation 478. Up to 121 conditions per place. [2021-03-26 10:39:48,655 INFO L132 encePairwiseOnDemand]: 109/115 looper letters, 5 selfloop transitions, 6 changer transitions 5/30 dead transitions. [2021-03-26 10:39:48,655 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 30 transitions, 145 flow [2021-03-26 10:39:48,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:39:48,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:39:48,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 453 transitions. [2021-03-26 10:39:48,657 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7878260869565218 [2021-03-26 10:39:48,657 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 453 transitions. [2021-03-26 10:39:48,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 453 transitions. [2021-03-26 10:39:48,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:39:48,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 453 transitions. [2021-03-26 10:39:48,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,661 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,661 INFO L185 Difference]: Start difference. First operand has 33 places, 20 transitions, 93 flow. Second operand 5 states and 453 transitions. [2021-03-26 10:39:48,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 30 transitions, 145 flow [2021-03-26 10:39:48,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 137 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 10:39:48,664 INFO L241 Difference]: Finished difference. Result has 38 places, 25 transitions, 131 flow [2021-03-26 10:39:48,665 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=131, PETRI_PLACES=38, PETRI_TRANSITIONS=25} [2021-03-26 10:39:48,665 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2021-03-26 10:39:48,665 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:39:48,665 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 25 transitions, 131 flow [2021-03-26 10:39:48,666 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 25 transitions, 131 flow [2021-03-26 10:39:48,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 25 transitions, 131 flow [2021-03-26 10:39:48,683 INFO L129 PetriNetUnfolder]: 62/151 cut-off events. [2021-03-26 10:39:48,683 INFO L130 PetriNetUnfolder]: For 349/390 co-relation queries the response was YES. [2021-03-26 10:39:48,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 151 events. 62/151 cut-off events. For 349/390 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 716 event pairs, 32 based on Foata normal form. 3/133 useless extension candidates. Maximal degree in co-relation 477. Up to 86 conditions per place. [2021-03-26 10:39:48,685 INFO L142 LiptonReduction]: Number of co-enabled transitions 162 [2021-03-26 10:39:48,688 INFO L154 LiptonReduction]: Checked pairs total: 45 [2021-03-26 10:39:48,688 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:39:48,688 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-26 10:39:48,689 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 25 transitions, 131 flow [2021-03-26 10:39:48,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,690 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:39:48,690 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:39:48,690 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:39:48,690 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:39:48,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:39:48,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1586005307, now seen corresponding path program 1 times [2021-03-26 10:39:48,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:39:48,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507146714] [2021-03-26 10:39:48,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:39:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:39:48,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:48,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:39:48,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:48,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:39:48,726 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:39:48,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:39:48,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:39:48,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507146714] [2021-03-26 10:39:48,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:39:48,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:39:48,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345998104] [2021-03-26 10:39:48,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:39:48,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:39:48,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:39:48,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:39:48,734 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 115 [2021-03-26 10:39:48,735 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 131 flow. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,735 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:39:48,735 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 115 [2021-03-26 10:39:48,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:39:48,794 INFO L129 PetriNetUnfolder]: 57/189 cut-off events. [2021-03-26 10:39:48,794 INFO L130 PetriNetUnfolder]: For 640/716 co-relation queries the response was YES. [2021-03-26 10:39:48,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 639 conditions, 189 events. 57/189 cut-off events. For 640/716 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1107 event pairs, 27 based on Foata normal form. 19/191 useless extension candidates. Maximal degree in co-relation 621. Up to 110 conditions per place. [2021-03-26 10:39:48,796 INFO L132 encePairwiseOnDemand]: 108/115 looper letters, 9 selfloop transitions, 10 changer transitions 0/33 dead transitions. [2021-03-26 10:39:48,796 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 33 transitions, 216 flow [2021-03-26 10:39:48,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:39:48,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:39:48,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 457 transitions. [2021-03-26 10:39:48,798 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7947826086956522 [2021-03-26 10:39:48,798 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 457 transitions. [2021-03-26 10:39:48,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 457 transitions. [2021-03-26 10:39:48,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:39:48,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 457 transitions. [2021-03-26 10:39:48,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,805 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,805 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 131 flow. Second operand 5 states and 457 transitions. [2021-03-26 10:39:48,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 33 transitions, 216 flow [2021-03-26 10:39:48,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 33 transitions, 216 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 10:39:48,810 INFO L241 Difference]: Finished difference. Result has 44 places, 31 transitions, 204 flow [2021-03-26 10:39:48,810 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=204, PETRI_PLACES=44, PETRI_TRANSITIONS=31} [2021-03-26 10:39:48,810 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-26 10:39:48,810 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:39:48,811 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 31 transitions, 204 flow [2021-03-26 10:39:48,811 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 31 transitions, 204 flow [2021-03-26 10:39:48,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 31 transitions, 204 flow [2021-03-26 10:39:48,832 INFO L129 PetriNetUnfolder]: 60/185 cut-off events. [2021-03-26 10:39:48,832 INFO L130 PetriNetUnfolder]: For 403/452 co-relation queries the response was YES. [2021-03-26 10:39:48,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 630 conditions, 185 events. 60/185 cut-off events. For 403/452 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1055 event pairs, 35 based on Foata normal form. 9/179 useless extension candidates. Maximal degree in co-relation 610. Up to 116 conditions per place. [2021-03-26 10:39:48,835 INFO L142 LiptonReduction]: Number of co-enabled transitions 208 [2021-03-26 10:39:48,838 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:39:48,838 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:39:48,839 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-03-26 10:39:48,841 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 31 transitions, 204 flow [2021-03-26 10:39:48,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,841 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:39:48,841 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:39:48,841 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:39:48,841 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:39:48,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:39:48,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1177565061, now seen corresponding path program 1 times [2021-03-26 10:39:48,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:39:48,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225110987] [2021-03-26 10:39:48,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:39:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:39:48,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:48,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:39:48,904 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-26 10:39:48,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:39:48,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:48,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:39:48,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:39:48,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225110987] [2021-03-26 10:39:48,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:39:48,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:39:48,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650026772] [2021-03-26 10:39:48,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:39:48,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:39:48,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:39:48,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:39:48,923 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 115 [2021-03-26 10:39:48,924 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 31 transitions, 204 flow. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 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) [2021-03-26 10:39:48,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:39:48,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 115 [2021-03-26 10:39:48,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:39:48,988 INFO L129 PetriNetUnfolder]: 56/176 cut-off events. [2021-03-26 10:39:48,988 INFO L130 PetriNetUnfolder]: For 686/902 co-relation queries the response was YES. [2021-03-26 10:39:48,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 176 events. 56/176 cut-off events. For 686/902 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 975 event pairs, 4 based on Foata normal form. 80/244 useless extension candidates. Maximal degree in co-relation 658. Up to 108 conditions per place. [2021-03-26 10:39:48,989 INFO L132 encePairwiseOnDemand]: 109/115 looper letters, 5 selfloop transitions, 12 changer transitions 5/41 dead transitions. [2021-03-26 10:39:48,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 41 transitions, 298 flow [2021-03-26 10:39:48,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:39:48,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:39:48,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 632 transitions. [2021-03-26 10:39:48,993 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7850931677018633 [2021-03-26 10:39:48,993 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 632 transitions. [2021-03-26 10:39:48,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 632 transitions. [2021-03-26 10:39:48,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:39:48,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 632 transitions. [2021-03-26 10:39:48,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 90.28571428571429) internal successors, (632), 7 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 115.0) internal successors, (920), 8 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,999 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 115.0) internal successors, (920), 8 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:48,999 INFO L185 Difference]: Start difference. First operand has 44 places, 31 transitions, 204 flow. Second operand 7 states and 632 transitions. [2021-03-26 10:39:48,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 41 transitions, 298 flow [2021-03-26 10:39:49,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 41 transitions, 298 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 10:39:49,004 INFO L241 Difference]: Finished difference. Result has 53 places, 36 transitions, 275 flow [2021-03-26 10:39:49,005 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=275, PETRI_PLACES=53, PETRI_TRANSITIONS=36} [2021-03-26 10:39:49,005 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 22 predicate places. [2021-03-26 10:39:49,005 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:39:49,005 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 36 transitions, 275 flow [2021-03-26 10:39:49,005 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 36 transitions, 275 flow [2021-03-26 10:39:49,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 36 transitions, 275 flow [2021-03-26 10:39:49,019 INFO L129 PetriNetUnfolder]: 35/147 cut-off events. [2021-03-26 10:39:49,019 INFO L130 PetriNetUnfolder]: For 648/762 co-relation queries the response was YES. [2021-03-26 10:39:49,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 147 events. 35/147 cut-off events. For 648/762 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 860 event pairs, 4 based on Foata normal form. 10/150 useless extension candidates. Maximal degree in co-relation 626. Up to 89 conditions per place. [2021-03-26 10:39:49,021 INFO L142 LiptonReduction]: Number of co-enabled transitions 226 [2021-03-26 10:39:49,025 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:39:49,025 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:39:49,026 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-26 10:39:49,029 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 36 transitions, 275 flow [2021-03-26 10:39:49,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 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) [2021-03-26 10:39:49,029 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:39:49,030 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:39:49,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:39:49,030 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:39:49,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:39:49,030 INFO L82 PathProgramCache]: Analyzing trace with hash -2065085374, now seen corresponding path program 1 times [2021-03-26 10:39:49,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:39:49,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65275270] [2021-03-26 10:39:49,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:39:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:39:49,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:49,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:39:49,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:49,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:39:49,083 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-26 10:39:49,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:39:49,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:49,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:39:49,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:39:49,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65275270] [2021-03-26 10:39:49,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:39:49,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:39:49,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167435234] [2021-03-26 10:39:49,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:39:49,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:39:49,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:39:49,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:39:49,093 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 115 [2021-03-26 10:39:49,094 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 36 transitions, 275 flow. Second operand has 6 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:49,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:39:49,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 115 [2021-03-26 10:39:49,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:39:49,161 INFO L129 PetriNetUnfolder]: 33/143 cut-off events. [2021-03-26 10:39:49,161 INFO L130 PetriNetUnfolder]: For 929/1205 co-relation queries the response was YES. [2021-03-26 10:39:49,162 INFO L84 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 143 events. 33/143 cut-off events. For 929/1205 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 830 event pairs, 0 based on Foata normal form. 107/242 useless extension candidates. Maximal degree in co-relation 693. Up to 87 conditions per place. [2021-03-26 10:39:49,162 INFO L132 encePairwiseOnDemand]: 109/115 looper letters, 2 selfloop transitions, 10 changer transitions 18/40 dead transitions. [2021-03-26 10:39:49,162 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 40 transitions, 347 flow [2021-03-26 10:39:49,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 10:39:49,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 10:39:49,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 806 transitions. [2021-03-26 10:39:49,165 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.778743961352657 [2021-03-26 10:39:49,165 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 806 transitions. [2021-03-26 10:39:49,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 806 transitions. [2021-03-26 10:39:49,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:39:49,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 806 transitions. [2021-03-26 10:39:49,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 89.55555555555556) internal successors, (806), 9 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:49,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 115.0) internal successors, (1150), 10 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:49,169 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 115.0) internal successors, (1150), 10 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:49,169 INFO L185 Difference]: Start difference. First operand has 53 places, 36 transitions, 275 flow. Second operand 9 states and 806 transitions. [2021-03-26 10:39:49,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 40 transitions, 347 flow [2021-03-26 10:39:49,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 40 transitions, 320 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-03-26 10:39:49,173 INFO L241 Difference]: Finished difference. Result has 62 places, 22 transitions, 179 flow [2021-03-26 10:39:49,173 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=179, PETRI_PLACES=62, PETRI_TRANSITIONS=22} [2021-03-26 10:39:49,174 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 31 predicate places. [2021-03-26 10:39:49,174 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:39:49,174 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 22 transitions, 179 flow [2021-03-26 10:39:49,174 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 22 transitions, 179 flow [2021-03-26 10:39:49,174 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 22 transitions, 179 flow [2021-03-26 10:39:49,180 INFO L129 PetriNetUnfolder]: 6/29 cut-off events. [2021-03-26 10:39:49,180 INFO L130 PetriNetUnfolder]: For 93/94 co-relation queries the response was YES. [2021-03-26 10:39:49,181 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 29 events. 6/29 cut-off events. For 93/94 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 114. Up to 11 conditions per place. [2021-03-26 10:39:49,181 INFO L142 LiptonReduction]: Number of co-enabled transitions 52 [2021-03-26 10:39:49,454 INFO L154 LiptonReduction]: Checked pairs total: 24 [2021-03-26 10:39:49,454 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 10:39:49,454 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 280 [2021-03-26 10:39:49,455 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 19 transitions, 197 flow [2021-03-26 10:39:49,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:49,455 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:39:49,455 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:39:49,455 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:39:49,455 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:39:49,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:39:49,456 INFO L82 PathProgramCache]: Analyzing trace with hash 299252431, now seen corresponding path program 1 times [2021-03-26 10:39:49,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:39:49,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876520730] [2021-03-26 10:39:49,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:39:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:39:49,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:49,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:39:49,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:49,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:39:49,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:39:49,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:39:49,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:39:49,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876520730] [2021-03-26 10:39:49,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:39:49,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:39:49,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641533816] [2021-03-26 10:39:49,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:39:49,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:39:49,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:39:49,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:39:49,507 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 122 [2021-03-26 10:39:49,507 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 19 transitions, 197 flow. Second operand has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:49,507 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:39:49,507 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 122 [2021-03-26 10:39:49,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:39:49,522 INFO L129 PetriNetUnfolder]: 6/29 cut-off events. [2021-03-26 10:39:49,523 INFO L130 PetriNetUnfolder]: For 239/255 co-relation queries the response was YES. [2021-03-26 10:39:49,523 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 29 events. 6/29 cut-off events. For 239/255 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 52 event pairs, 0 based on Foata normal form. 3/30 useless extension candidates. Maximal degree in co-relation 145. Up to 11 conditions per place. [2021-03-26 10:39:49,523 INFO L132 encePairwiseOnDemand]: 117/122 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2021-03-26 10:39:49,523 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 18 transitions, 179 flow [2021-03-26 10:39:49,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:39:49,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:39:49,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 398 transitions. [2021-03-26 10:39:49,525 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8155737704918032 [2021-03-26 10:39:49,525 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 398 transitions. [2021-03-26 10:39:49,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 398 transitions. [2021-03-26 10:39:49,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:39:49,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 398 transitions. [2021-03-26 10:39:49,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:49,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:49,527 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:49,527 INFO L185 Difference]: Start difference. First operand has 50 places, 19 transitions, 197 flow. Second operand 4 states and 398 transitions. [2021-03-26 10:39:49,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 18 transitions, 179 flow [2021-03-26 10:39:49,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 18 transitions, 84 flow, removed 15 selfloop flow, removed 20 redundant places. [2021-03-26 10:39:49,529 INFO L241 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2021-03-26 10:39:49,529 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2021-03-26 10:39:49,529 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 1 predicate places. [2021-03-26 10:39:49,529 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:39:49,529 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 0 transitions, 0 flow [2021-03-26 10:39:49,530 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 0 transitions, 0 flow [2021-03-26 10:39:49,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 10:39:49,530 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 10:39:49,530 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:39:49,530 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. [2021-03-26 10:39:49,530 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 10:39:49,530 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:39:49,530 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:39:49,530 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 10:39:49,531 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 10:39:49,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:39:49,531 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 10:39:49,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:39:49 BasicIcfg [2021-03-26 10:39:49,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:39:49,535 INFO L168 Benchmark]: Toolchain (without parser) took 5195.50 ms. Allocated memory was 255.9 MB in the beginning and 406.8 MB in the end (delta: 151.0 MB). Free memory was 234.3 MB in the beginning and 358.2 MB in the end (delta: -123.9 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.0 GB. [2021-03-26 10:39:49,535 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:39:49,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 523.60 ms. Allocated memory was 255.9 MB in the beginning and 337.6 MB in the end (delta: 81.8 MB). Free memory was 233.7 MB in the beginning and 300.3 MB in the end (delta: -66.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-26 10:39:49,536 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.39 ms. Allocated memory is still 337.6 MB. Free memory was 300.2 MB in the beginning and 298.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:39:49,536 INFO L168 Benchmark]: Boogie Preprocessor took 35.19 ms. Allocated memory is still 337.6 MB. Free memory was 298.1 MB in the beginning and 296.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:39:49,537 INFO L168 Benchmark]: RCFGBuilder took 379.07 ms. Allocated memory is still 337.6 MB. Free memory was 296.3 MB in the beginning and 274.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:39:49,537 INFO L168 Benchmark]: TraceAbstraction took 4195.99 ms. Allocated memory was 337.6 MB in the beginning and 406.8 MB in the end (delta: 69.2 MB). Free memory was 274.3 MB in the beginning and 358.2 MB in the end (delta: -83.9 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:39:49,538 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 523.60 ms. Allocated memory was 255.9 MB in the beginning and 337.6 MB in the end (delta: 81.8 MB). Free memory was 233.7 MB in the beginning and 300.3 MB in the end (delta: -66.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.39 ms. Allocated memory is still 337.6 MB. Free memory was 300.2 MB in the beginning and 298.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 35.19 ms. Allocated memory is still 337.6 MB. Free memory was 298.1 MB in the beginning and 296.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 379.07 ms. Allocated memory is still 337.6 MB. Free memory was 296.3 MB in the beginning and 274.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4195.99 ms. Allocated memory was 337.6 MB in the beginning and 406.8 MB in the end (delta: 69.2 MB). Free memory was 274.3 MB in the beginning and 358.2 MB in the end (delta: -83.9 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1499.6ms, 67 PlacesBefore, 31 PlacesAfterwards, 58 TransitionsBefore, 21 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 37 TotalNumberOfCompositions, 784 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 618, positive: 594, positive conditional: 594, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 618, positive: 594, positive conditional: 0, positive unconditional: 594, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 618, positive: 594, positive conditional: 0, positive unconditional: 594, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 528, positive: 510, positive conditional: 0, positive unconditional: 510, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 528, positive: 502, positive conditional: 0, positive unconditional: 502, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 103, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 618, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 528, unknown conditional: 0, unknown unconditional: 528] , Statistics on independence cache: Total cache size (in pairs): 528, Positive cache size: 510, Positive conditional cache size: 0, Positive unconditional cache size: 510, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 826.7ms, 31 PlacesBefore, 26 PlacesAfterwards, 23 TransitionsBefore, 18 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 285 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 144, positive: 118, positive conditional: 118, positive unconditional: 0, negative: 26, negative conditional: 26, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 144, positive: 118, positive conditional: 0, positive unconditional: 118, negative: 26, negative conditional: 4, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 144, positive: 118, positive conditional: 0, positive unconditional: 118, negative: 26, negative conditional: 4, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 39, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 39, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 42, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 27, negative conditional: 11, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 144, positive: 85, positive conditional: 0, positive unconditional: 85, negative: 20, negative conditional: 2, negative unconditional: 18, unknown: 39, unknown conditional: 2, unknown unconditional: 37] , Statistics on independence cache: Total cache size (in pairs): 567, Positive cache size: 543, Positive conditional cache size: 0, Positive unconditional cache size: 543, Negative cache size: 24, Negative conditional cache size: 2, Negative unconditional cache size: 22, Eliminated conditions: 13 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.2ms, 28 PlacesBefore, 28 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 122 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 71 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 36, positive: 29, positive conditional: 29, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 36, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 36, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 573, Positive cache size: 548, Positive conditional cache size: 0, Positive unconditional cache size: 548, Negative cache size: 25, Negative conditional cache size: 2, Negative unconditional cache size: 23, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.5ms, 33 PlacesBefore, 33 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 114 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 77 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 50, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 50, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 50, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 50, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 574, Positive cache size: 549, Positive conditional cache size: 0, Positive unconditional cache size: 549, Negative cache size: 25, Negative conditional cache size: 2, Negative unconditional cache size: 23, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.6ms, 38 PlacesBefore, 38 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 162 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 45 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 36, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 36, positive: 33, positive conditional: 6, positive unconditional: 27, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 33, positive conditional: 6, positive unconditional: 27, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 36, positive: 33, positive conditional: 6, positive unconditional: 27, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 574, Positive cache size: 549, Positive conditional cache size: 0, Positive unconditional cache size: 549, Negative cache size: 25, Negative conditional cache size: 2, Negative unconditional cache size: 23, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.6ms, 44 PlacesBefore, 44 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 208 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 574, Positive cache size: 549, Positive conditional cache size: 0, Positive unconditional cache size: 549, Negative cache size: 25, Negative conditional cache size: 2, Negative unconditional cache size: 23, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.0ms, 53 PlacesBefore, 53 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 226 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 574, Positive cache size: 549, Positive conditional cache size: 0, Positive unconditional cache size: 549, Negative cache size: 25, Negative conditional cache size: 2, Negative unconditional cache size: 23, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 279.8ms, 62 PlacesBefore, 50 PlacesAfterwards, 22 TransitionsBefore, 19 TransitionsAfterwards, 52 CoEnabledTransitionPairs, 4 FixpointIterations, 2 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 24, positive conditional: 8, positive unconditional: 16, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 24, positive conditional: 8, positive unconditional: 16, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 2, positive unconditional: 4, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 24, positive: 18, positive conditional: 6, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6, unknown conditional: 2, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 580, Positive cache size: 555, Positive conditional cache size: 2, Positive unconditional cache size: 553, Negative cache size: 25, Negative conditional cache size: 2, Negative unconditional cache size: 23, Eliminated conditions: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 32 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: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 580, Positive cache size: 555, Positive conditional cache size: 2, Positive unconditional cache size: 553, Negative cache size: 25, Negative conditional cache size: 2, Negative unconditional cache size: 23, Eliminated conditions: 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, 72 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4113.0ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 498.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1612.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 37 SDtfs, 29 SDslu, 21 SDs, 0 SdLazy, 118 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 106.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 106.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=275occurred in iteration=6, InterpolantAutomatonStates: 41, 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: 22.5ms SsaConstructionTime, 205.5ms SatisfiabilityAnalysisTime, 344.0ms InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 281 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...