/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix055_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 22:28:23,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 22:28:23,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 22:28:24,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 22:28:24,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 22:28:24,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 22:28:24,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 22:28:24,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 22:28:24,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 22:28:24,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 22:28:24,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 22:28:24,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 22:28:24,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 22:28:24,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 22:28:24,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 22:28:24,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 22:28:24,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 22:28:24,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 22:28:24,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 22:28:24,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 22:28:24,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 22:28:24,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 22:28:24,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 22:28:24,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 22:28:24,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 22:28:24,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 22:28:24,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 22:28:24,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 22:28:24,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 22:28:24,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 22:28:24,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 22:28:24,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 22:28:24,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 22:28:24,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 22:28:24,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 22:28:24,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 22:28:24,128 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 22:28:24,191 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 22:28:24,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 22:28:24,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 22:28:24,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 22:28:24,196 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 22:28:24,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 22:28:24,197 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 22:28:24,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 22:28:24,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 22:28:24,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 22:28:24,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 22:28:24,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 22:28:24,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 22:28:24,200 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 22:28:24,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 22:28:24,201 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 22:28:24,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 22:28:24,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 22:28:24,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 22:28:24,202 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 22:28:24,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 22:28:24,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:28:24,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 22:28:24,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 22:28:24,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 22:28:24,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 22:28:24,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 22:28:24,205 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 22:28:24,205 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 22:28:24,205 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 22:28:24,206 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 22:28:24,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 22:28:24,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 22:28:24,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 22:28:24,694 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 22:28:24,695 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 22:28:24,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix055_tso.oepc.i [2021-04-28 22:28:24,785 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aa07edd3/9bbdab5fbb4345a993768595610f852a/FLAG0b9b32f71 [2021-04-28 22:28:25,426 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 22:28:25,427 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix055_tso.oepc.i [2021-04-28 22:28:25,459 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aa07edd3/9bbdab5fbb4345a993768595610f852a/FLAG0b9b32f71 [2021-04-28 22:28:25,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aa07edd3/9bbdab5fbb4345a993768595610f852a [2021-04-28 22:28:25,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 22:28:25,777 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 22:28:25,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 22:28:25,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 22:28:25,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 22:28:25,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:28:25" (1/1) ... [2021-04-28 22:28:25,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a995011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:28:25, skipping insertion in model container [2021-04-28 22:28:25,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:28:25" (1/1) ... [2021-04-28 22:28:25,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 22:28:25,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 22:28:26,093 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/mix055_tso.oepc.i[949,962] [2021-04-28 22:28:26,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:28:26,479 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 22:28:26,494 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/mix055_tso.oepc.i[949,962] [2021-04-28 22:28:26,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:28:26,641 INFO L208 MainTranslator]: Completed translation [2021-04-28 22:28:26,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:28:26 WrapperNode [2021-04-28 22:28:26,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 22:28:26,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 22:28:26,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 22:28:26,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 22:28:26,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:28:26" (1/1) ... [2021-04-28 22:28:26,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:28:26" (1/1) ... [2021-04-28 22:28:26,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 22:28:26,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 22:28:26,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 22:28:26,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 22:28:26,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:28:26" (1/1) ... [2021-04-28 22:28:26,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:28:26" (1/1) ... [2021-04-28 22:28:26,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:28:26" (1/1) ... [2021-04-28 22:28:26,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:28:26" (1/1) ... [2021-04-28 22:28:26,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:28:26" (1/1) ... [2021-04-28 22:28:26,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:28:26" (1/1) ... [2021-04-28 22:28:26,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:28:26" (1/1) ... [2021-04-28 22:28:26,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 22:28:26,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 22:28:26,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 22:28:26,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 22:28:26,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:28:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:28:26,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 22:28:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 22:28:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 22:28:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 22:28:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 22:28:26,902 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 22:28:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 22:28:26,902 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 22:28:26,903 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 22:28:26,903 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 22:28:26,903 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 22:28:26,903 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 22:28:26,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 22:28:26,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 22:28:26,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 22:28:26,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 22:28:26,906 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 22:28:29,644 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 22:28:29,644 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 22:28:29,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:28:29 BoogieIcfgContainer [2021-04-28 22:28:29,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 22:28:29,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 22:28:29,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 22:28:29,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 22:28:29,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 10:28:25" (1/3) ... [2021-04-28 22:28:29,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92d0cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:28:29, skipping insertion in model container [2021-04-28 22:28:29,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:28:26" (2/3) ... [2021-04-28 22:28:29,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92d0cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:28:29, skipping insertion in model container [2021-04-28 22:28:29,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:28:29" (3/3) ... [2021-04-28 22:28:29,655 INFO L111 eAbstractionObserver]: Analyzing ICFG mix055_tso.oepc.i [2021-04-28 22:28:29,663 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 22:28:29,669 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 22:28:29,673 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 22:28:29,721 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,721 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,721 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,722 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,722 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,722 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,723 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,723 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,723 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,723 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,723 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,723 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,724 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,724 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,724 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,724 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,727 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,727 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,727 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,727 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,728 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,728 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,728 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,728 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,728 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,728 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,729 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,729 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,730 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,730 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,730 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,730 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,730 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,731 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,731 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,731 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,731 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,732 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,732 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,732 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,732 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,732 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,732 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,733 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,733 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,733 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,734 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,734 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,734 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,734 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,734 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,735 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,735 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,735 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,735 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,735 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,736 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,736 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,736 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,736 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,736 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,736 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,737 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,737 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,737 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,737 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,738 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,738 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,738 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,738 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,739 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,739 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,739 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,739 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,740 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,740 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,740 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,740 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,740 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,740 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,741 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,741 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,741 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,741 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,741 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,742 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,742 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,742 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,742 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,743 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,743 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,743 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,743 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,743 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,744 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,744 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,744 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,745 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,745 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,745 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,747 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,748 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,748 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,748 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,748 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,748 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,749 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,749 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,749 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,749 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,751 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,752 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,752 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,752 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,752 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,752 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,752 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,753 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,753 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,753 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,755 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,755 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,755 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,755 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,756 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,756 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,756 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,756 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,756 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,756 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,757 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,757 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,758 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,759 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,759 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,759 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,759 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,759 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,759 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:28:29,761 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 22:28:29,785 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 22:28:29,811 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 22:28:29,812 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 22:28:29,812 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 22:28:29,812 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 22:28:29,812 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 22:28:29,812 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 22:28:29,812 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 22:28:29,812 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 22:28:29,827 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 115 transitions, 250 flow [2021-04-28 22:28:29,879 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-04-28 22:28:29,879 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:28:29,885 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 22:28:29,885 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 115 transitions, 250 flow [2021-04-28 22:28:29,892 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 111 transitions, 234 flow [2021-04-28 22:28:29,893 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:28:29,910 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 111 transitions, 234 flow [2021-04-28 22:28:29,914 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 111 transitions, 234 flow [2021-04-28 22:28:29,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 111 transitions, 234 flow [2021-04-28 22:28:29,944 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-04-28 22:28:29,944 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:28:29,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 22:28:29,950 INFO L146 LiptonReduction]: Number of co-enabled transitions 2664 [2021-04-28 22:28:30,488 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-28 22:28:33,821 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 22:28:34,473 WARN L205 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 22:28:34,681 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 22:28:35,826 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 22:28:36,363 WARN L205 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:28:38,660 WARN L205 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:28:39,664 WARN L205 SmtUtils]: Spent 1000.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:28:40,687 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-04-28 22:28:43,799 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 22:28:44,363 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 22:28:46,771 WARN L205 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 22:28:47,999 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:28:49,793 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 228 DAG size of output: 187 [2021-04-28 22:28:50,341 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:28:52,912 WARN L205 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:28:54,108 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:28:55,454 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 22:28:56,036 WARN L205 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 22:28:58,841 WARN L205 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 22:29:00,112 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 22:29:04,315 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 231 DAG size of output: 191 [2021-04-28 22:29:04,967 WARN L205 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:29:07,983 WARN L205 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 315 DAG size of output: 271 [2021-04-28 22:29:09,348 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:29:10,948 WARN L205 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 231 DAG size of output: 191 [2021-04-28 22:29:12,334 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2021-04-28 22:29:15,528 WARN L205 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 315 DAG size of output: 271 [2021-04-28 22:29:17,000 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:29:18,580 WARN L205 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 22:29:20,050 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-04-28 22:29:23,570 WARN L205 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:29:25,125 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:29:26,857 WARN L205 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 22:29:27,647 WARN L205 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:29:31,181 WARN L205 SmtUtils]: Spent 3.53 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 22:29:32,792 WARN L205 SmtUtils]: Spent 1.61 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:29:35,649 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:29:35,766 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:29:35,893 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:29:36,019 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:29:36,123 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:29:36,229 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:29:36,430 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:29:36,912 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:29:37,022 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:29:37,140 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:29:37,254 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:29:37,364 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:29:37,474 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:29:37,578 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:29:37,681 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:29:38,159 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:29:38,291 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:29:38,416 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:29:38,542 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:29:38,705 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:29:38,857 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:29:39,004 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:29:39,154 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:29:39,292 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:29:39,428 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:29:39,562 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:29:39,697 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:29:39,846 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:29:39,992 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:29:40,151 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:29:40,305 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:29:40,423 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:29:40,537 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:29:40,657 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:29:40,782 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:29:43,523 WARN L205 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 22:29:44,349 WARN L205 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 22:29:48,142 WARN L205 SmtUtils]: Spent 3.79 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 22:29:49,954 WARN L205 SmtUtils]: Spent 1.81 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:29:52,143 WARN L205 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 231 DAG size of output: 191 [2021-04-28 22:29:53,075 WARN L205 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:29:57,068 WARN L205 SmtUtils]: Spent 3.99 s on a formula simplification. DAG size of input: 315 DAG size of output: 271 [2021-04-28 22:29:58,868 WARN L205 SmtUtils]: Spent 1.80 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:30:01,001 WARN L205 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 22:30:03,035 WARN L205 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-04-28 22:30:07,485 WARN L205 SmtUtils]: Spent 4.45 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:30:09,490 WARN L205 SmtUtils]: Spent 2.00 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:30:12,408 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-04-28 22:30:13,450 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-28 22:30:13,619 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-28 22:30:13,779 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-28 22:30:13,945 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-28 22:30:15,525 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 22:30:15,680 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 22:30:15,830 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 22:30:15,981 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 22:30:17,230 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:30:17,448 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:30:17,662 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:30:17,868 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:30:18,096 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:30:18,325 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:30:18,544 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:30:18,763 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:30:18,913 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:19,068 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:19,226 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:19,384 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:19,577 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:30:19,774 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:30:19,970 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:30:20,162 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:30:20,323 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:30:20,498 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:30:20,683 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:30:20,873 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:30:21,047 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:21,196 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:21,344 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:21,486 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:21,607 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:30:21,738 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:30:21,880 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:30:22,002 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:30:22,147 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:22,294 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:22,440 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:22,581 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:22,789 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:30:22,993 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:30:23,211 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:30:23,422 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:30:23,557 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:30:23,695 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:30:23,830 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:30:23,963 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:30:24,068 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:30:24,173 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:30:24,289 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:30:24,393 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:30:24,924 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:30:25,060 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:30:25,195 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:30:25,329 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:30:25,450 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:30:25,567 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:30:25,685 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:30:25,808 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:30:25,924 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:30:26,038 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:30:26,157 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:30:26,270 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:30:26,411 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:26,551 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:26,691 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:26,830 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:27,283 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:30:27,399 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:30:27,517 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:30:27,632 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:30:27,751 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:30:27,857 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:30:27,961 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:30:28,067 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:30:28,208 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:28,353 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:28,495 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:28,639 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:29,245 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:30:29,472 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:30:29,697 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:30:29,927 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:30:30,133 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:30:30,333 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:30:30,550 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:30:30,774 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:30:31,039 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:30:31,269 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:30:31,503 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:30:31,740 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:30:31,910 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:32,069 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:32,226 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:32,381 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:32,569 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:30:32,751 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:30:32,956 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:30:33,175 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:30:33,444 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:30:33,701 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:30:33,947 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:30:34,190 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:30:34,544 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:30:34,822 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:30:35,120 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:30:35,415 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:30:35,788 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:30:36,160 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:30:36,536 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:30:36,902 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:30:37,250 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:30:37,604 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:30:37,968 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:30:38,360 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:30:38,517 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:38,667 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:38,828 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:38,986 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:30:39,958 WARN L205 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-04-28 22:30:40,430 WARN L205 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-04-28 22:30:41,394 WARN L205 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-04-28 22:30:41,817 WARN L205 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-04-28 22:30:42,093 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:30:42,375 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:30:42,660 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:30:42,934 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:30:43,223 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:30:43,497 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:30:43,791 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:30:44,083 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:30:44,373 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:30:44,683 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:30:44,971 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:30:45,247 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:30:45,615 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:30:45,963 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:30:46,326 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:30:46,711 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:30:47,050 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:30:47,385 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:30:47,737 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:30:48,096 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:30:48,392 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:30:48,690 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:30:48,979 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:30:49,274 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:30:49,558 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:30:49,855 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:30:50,156 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:30:50,441 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:30:50,752 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:30:51,061 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:30:51,367 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:30:51,670 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:30:52,025 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:30:52,357 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:30:52,664 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:30:52,972 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:30:53,891 WARN L205 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-04-28 22:30:54,317 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-04-28 22:30:55,240 WARN L205 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-04-28 22:30:55,682 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-04-28 22:30:56,027 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:30:56,367 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:30:56,709 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:30:57,074 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:30:57,378 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:30:57,685 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:30:57,987 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:30:58,303 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:30:58,562 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:30:58,819 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:30:59,084 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:30:59,333 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:30:59,402 INFO L158 LiptonReduction]: Checked pairs total: 26315 [2021-04-28 22:30:59,402 INFO L160 LiptonReduction]: Total number of compositions: 260 [2021-04-28 22:30:59,408 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 149516 [2021-04-28 22:30:59,431 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-04-28 22:30:59,431 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:30:59,431 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:30:59,432 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-28 22:30:59,432 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:30:59,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:30:59,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1300696561, now seen corresponding path program 1 times [2021-04-28 22:30:59,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:30:59,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993032557] [2021-04-28 22:30:59,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:30:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:30:59,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:30:59,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:30:59,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:30:59,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993032557] [2021-04-28 22:30:59,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:30:59,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:30:59,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699971695] [2021-04-28 22:30:59,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:30:59,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:30:59,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:30:59,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:30:59,813 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 375 [2021-04-28 22:30:59,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 139 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 279.6666666666667) internal successors, (839), 3 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:30:59,819 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:30:59,820 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 375 [2021-04-28 22:30:59,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:31:00,704 INFO L129 PetriNetUnfolder]: 861/1736 cut-off events. [2021-04-28 22:31:00,705 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:31:00,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3032 conditions, 1736 events. 861/1736 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 13130 event pairs, 591 based on Foata normal form. 21/1012 useless extension candidates. Maximal degree in co-relation 2954. Up to 937 conditions per place. [2021-04-28 22:31:00,721 INFO L132 encePairwiseOnDemand]: 355/375 looper letters, 11 selfloop transitions, 2 changer transitions 96/153 dead transitions. [2021-04-28 22:31:00,721 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 153 transitions, 426 flow [2021-04-28 22:31:00,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:31:00,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:31:00,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 894 transitions. [2021-04-28 22:31:00,745 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7946666666666666 [2021-04-28 22:31:00,746 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 894 transitions. [2021-04-28 22:31:00,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 894 transitions. [2021-04-28 22:31:00,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:31:00,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 894 transitions. [2021-04-28 22:31:00,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 298.0) internal successors, (894), 3 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:00,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 375.0) internal successors, (1500), 4 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:00,772 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 375.0) internal successors, (1500), 4 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:00,775 INFO L185 Difference]: Start difference. First operand has 150 places, 139 transitions, 290 flow. Second operand 3 states and 894 transitions. [2021-04-28 22:31:00,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 153 transitions, 426 flow [2021-04-28 22:31:00,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 153 transitions, 422 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 22:31:00,784 INFO L241 Difference]: Finished difference. Result has 145 places, 52 transitions, 116 flow [2021-04-28 22:31:00,787 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=375, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=145, PETRI_TRANSITIONS=52} [2021-04-28 22:31:00,787 INFO L343 CegarLoopForPetriNet]: 150 programPoint places, -5 predicate places. [2021-04-28 22:31:00,788 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:31:00,788 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 52 transitions, 116 flow [2021-04-28 22:31:00,788 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 52 transitions, 116 flow [2021-04-28 22:31:00,807 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 52 transitions, 116 flow [2021-04-28 22:31:00,815 INFO L129 PetriNetUnfolder]: 0/52 cut-off events. [2021-04-28 22:31:00,815 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:31:00,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 201 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 22:31:00,817 INFO L146 LiptonReduction]: Number of co-enabled transitions 1568 [2021-04-28 22:31:01,213 INFO L158 LiptonReduction]: Checked pairs total: 1570 [2021-04-28 22:31:01,213 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:31:01,213 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 425 [2021-04-28 22:31:01,215 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 116 flow [2021-04-28 22:31:01,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 279.6666666666667) internal successors, (839), 3 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:01,216 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:31:01,217 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:31:01,217 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 22:31:01,217 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:31:01,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:31:01,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1232557916, now seen corresponding path program 1 times [2021-04-28 22:31:01,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:31:01,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128530365] [2021-04-28 22:31:01,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:31:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:31:01,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:01,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:31:01,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:31:01,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128530365] [2021-04-28 22:31:01,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:31:01,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:31:01,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438373768] [2021-04-28 22:31:01,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:31:01,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:31:01,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:31:01,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:31:01,372 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 375 [2021-04-28 22:31:01,374 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:01,374 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:31:01,374 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 375 [2021-04-28 22:31:01,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:31:01,402 INFO L129 PetriNetUnfolder]: 3/68 cut-off events. [2021-04-28 22:31:01,402 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:31:01,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 68 events. 3/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 228 event pairs, 1 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 82. Up to 10 conditions per place. [2021-04-28 22:31:01,404 INFO L132 encePairwiseOnDemand]: 371/375 looper letters, 3 selfloop transitions, 3 changer transitions 4/54 dead transitions. [2021-04-28 22:31:01,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 54 transitions, 132 flow [2021-04-28 22:31:01,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:31:01,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:31:01,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2021-04-28 22:31:01,410 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8168888888888889 [2021-04-28 22:31:01,410 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 919 transitions. [2021-04-28 22:31:01,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 919 transitions. [2021-04-28 22:31:01,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:31:01,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 919 transitions. [2021-04-28 22:31:01,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:01,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 375.0) internal successors, (1500), 4 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:01,419 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 375.0) internal successors, (1500), 4 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:01,420 INFO L185 Difference]: Start difference. First operand has 63 places, 52 transitions, 116 flow. Second operand 3 states and 919 transitions. [2021-04-28 22:31:01,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 54 transitions, 132 flow [2021-04-28 22:31:01,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 54 transitions, 128 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:31:01,422 INFO L241 Difference]: Finished difference. Result has 64 places, 50 transitions, 123 flow [2021-04-28 22:31:01,422 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=375, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=64, PETRI_TRANSITIONS=50} [2021-04-28 22:31:01,423 INFO L343 CegarLoopForPetriNet]: 150 programPoint places, -86 predicate places. [2021-04-28 22:31:01,423 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:31:01,423 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 50 transitions, 123 flow [2021-04-28 22:31:01,423 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 50 transitions, 123 flow [2021-04-28 22:31:01,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 50 transitions, 123 flow [2021-04-28 22:31:01,434 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2021-04-28 22:31:01,434 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:31:01,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 62 events. 3/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 230 event pairs, 1 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 77. Up to 10 conditions per place. [2021-04-28 22:31:01,436 INFO L146 LiptonReduction]: Number of co-enabled transitions 1522 [2021-04-28 22:31:01,519 INFO L158 LiptonReduction]: Checked pairs total: 1434 [2021-04-28 22:31:01,519 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:31:01,519 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 96 [2021-04-28 22:31:01,521 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 123 flow [2021-04-28 22:31:01,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:01,522 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:31:01,522 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:31:01,522 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 22:31:01,523 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:31:01,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:31:01,523 INFO L82 PathProgramCache]: Analyzing trace with hash 443368966, now seen corresponding path program 1 times [2021-04-28 22:31:01,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:31:01,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031354259] [2021-04-28 22:31:01,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:31:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:31:01,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:01,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 22:31:01,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:01,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:31:01,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:31:01,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031354259] [2021-04-28 22:31:01,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:31:01,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:31:01,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456736805] [2021-04-28 22:31:01,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:31:01,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:31:01,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:31:01,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:31:01,728 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 375 [2021-04-28 22:31:01,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 213.75) internal successors, (855), 4 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:01,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:31:01,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 375 [2021-04-28 22:31:01,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:31:02,035 INFO L129 PetriNetUnfolder]: 299/697 cut-off events. [2021-04-28 22:31:02,035 INFO L130 PetriNetUnfolder]: For 38/64 co-relation queries the response was YES. [2021-04-28 22:31:02,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1232 conditions, 697 events. 299/697 cut-off events. For 38/64 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 4596 event pairs, 232 based on Foata normal form. 6/502 useless extension candidates. Maximal degree in co-relation 1222. Up to 405 conditions per place. [2021-04-28 22:31:02,046 INFO L132 encePairwiseOnDemand]: 371/375 looper letters, 11 selfloop transitions, 3 changer transitions 0/55 dead transitions. [2021-04-28 22:31:02,046 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 55 transitions, 161 flow [2021-04-28 22:31:02,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:31:02,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:31:02,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 654 transitions. [2021-04-28 22:31:02,053 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5813333333333334 [2021-04-28 22:31:02,053 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 654 transitions. [2021-04-28 22:31:02,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 654 transitions. [2021-04-28 22:31:02,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:31:02,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 654 transitions. [2021-04-28 22:31:02,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:02,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 375.0) internal successors, (1500), 4 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:02,062 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 375.0) internal successors, (1500), 4 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:02,062 INFO L185 Difference]: Start difference. First operand has 60 places, 50 transitions, 123 flow. Second operand 3 states and 654 transitions. [2021-04-28 22:31:02,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 55 transitions, 161 flow [2021-04-28 22:31:02,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 55 transitions, 158 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:31:02,065 INFO L241 Difference]: Finished difference. Result has 62 places, 52 transitions, 139 flow [2021-04-28 22:31:02,066 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=375, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=139, PETRI_PLACES=62, PETRI_TRANSITIONS=52} [2021-04-28 22:31:02,066 INFO L343 CegarLoopForPetriNet]: 150 programPoint places, -88 predicate places. [2021-04-28 22:31:02,066 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:31:02,066 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 52 transitions, 139 flow [2021-04-28 22:31:02,067 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 52 transitions, 139 flow [2021-04-28 22:31:02,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 52 transitions, 139 flow [2021-04-28 22:31:02,085 INFO L129 PetriNetUnfolder]: 10/95 cut-off events. [2021-04-28 22:31:02,085 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-04-28 22:31:02,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 95 events. 10/95 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 438 event pairs, 4 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 135. Up to 18 conditions per place. [2021-04-28 22:31:02,088 INFO L146 LiptonReduction]: Number of co-enabled transitions 1640 [2021-04-28 22:31:02,129 INFO L158 LiptonReduction]: Checked pairs total: 1312 [2021-04-28 22:31:02,129 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:31:02,130 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-04-28 22:31:02,131 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 52 transitions, 139 flow [2021-04-28 22:31:02,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 213.75) internal successors, (855), 4 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:02,133 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:31:02,133 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:31:02,133 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 22:31:02,133 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:31:02,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:31:02,134 INFO L82 PathProgramCache]: Analyzing trace with hash 920484772, now seen corresponding path program 1 times [2021-04-28 22:31:02,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:31:02,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812877254] [2021-04-28 22:31:02,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:31:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:31:02,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:02,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:31:02,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:02,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:31:02,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:02,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:31:02,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:31:02,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812877254] [2021-04-28 22:31:02,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:31:02,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:31:02,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122191219] [2021-04-28 22:31:02,387 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:31:02,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:31:02,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:31:02,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:31:02,390 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 375 [2021-04-28 22:31:02,391 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 52 transitions, 139 flow. Second operand has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:02,391 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:31:02,392 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 375 [2021-04-28 22:31:02,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:31:02,646 INFO L129 PetriNetUnfolder]: 290/763 cut-off events. [2021-04-28 22:31:02,647 INFO L130 PetriNetUnfolder]: For 244/315 co-relation queries the response was YES. [2021-04-28 22:31:02,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1446 conditions, 763 events. 290/763 cut-off events. For 244/315 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 5459 event pairs, 168 based on Foata normal form. 5/516 useless extension candidates. Maximal degree in co-relation 1434. Up to 406 conditions per place. [2021-04-28 22:31:02,658 INFO L132 encePairwiseOnDemand]: 369/375 looper letters, 12 selfloop transitions, 6 changer transitions 0/59 dead transitions. [2021-04-28 22:31:02,658 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 59 transitions, 197 flow [2021-04-28 22:31:02,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:31:02,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:31:02,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 700 transitions. [2021-04-28 22:31:02,664 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6222222222222222 [2021-04-28 22:31:02,664 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 700 transitions. [2021-04-28 22:31:02,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 700 transitions. [2021-04-28 22:31:02,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:31:02,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 700 transitions. [2021-04-28 22:31:02,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:02,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 375.0) internal successors, (1500), 4 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:02,672 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 375.0) internal successors, (1500), 4 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:02,672 INFO L185 Difference]: Start difference. First operand has 62 places, 52 transitions, 139 flow. Second operand 3 states and 700 transitions. [2021-04-28 22:31:02,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 59 transitions, 197 flow [2021-04-28 22:31:02,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 59 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:31:02,676 INFO L241 Difference]: Finished difference. Result has 64 places, 57 transitions, 180 flow [2021-04-28 22:31:02,676 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=375, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=64, PETRI_TRANSITIONS=57} [2021-04-28 22:31:02,676 INFO L343 CegarLoopForPetriNet]: 150 programPoint places, -86 predicate places. [2021-04-28 22:31:02,676 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:31:02,677 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 57 transitions, 180 flow [2021-04-28 22:31:02,677 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 57 transitions, 180 flow [2021-04-28 22:31:02,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 57 transitions, 180 flow [2021-04-28 22:31:02,739 INFO L129 PetriNetUnfolder]: 97/310 cut-off events. [2021-04-28 22:31:02,739 INFO L130 PetriNetUnfolder]: For 119/152 co-relation queries the response was YES. [2021-04-28 22:31:02,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 310 events. 97/310 cut-off events. For 119/152 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1921 event pairs, 41 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 582. Up to 138 conditions per place. [2021-04-28 22:31:02,749 INFO L146 LiptonReduction]: Number of co-enabled transitions 1836 [2021-04-28 22:31:02,964 INFO L158 LiptonReduction]: Checked pairs total: 777 [2021-04-28 22:31:02,964 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:31:02,964 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 288 [2021-04-28 22:31:02,966 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 57 transitions, 180 flow [2021-04-28 22:31:02,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:02,967 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:31:02,967 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:31:02,968 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 22:31:02,968 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:31:02,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:31:02,968 INFO L82 PathProgramCache]: Analyzing trace with hash 875708794, now seen corresponding path program 1 times [2021-04-28 22:31:02,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:31:02,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798442743] [2021-04-28 22:31:02,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:31:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:31:03,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:03,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:31:03,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:03,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:31:03,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:03,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:31:03,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:31:03,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798442743] [2021-04-28 22:31:03,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:31:03,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:31:03,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127392904] [2021-04-28 22:31:03,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:31:03,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:31:03,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:31:03,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:31:03,065 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 375 [2021-04-28 22:31:03,066 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 57 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:03,067 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:31:03,067 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 375 [2021-04-28 22:31:03,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:31:03,393 INFO L129 PetriNetUnfolder]: 310/747 cut-off events. [2021-04-28 22:31:03,393 INFO L130 PetriNetUnfolder]: For 397/858 co-relation queries the response was YES. [2021-04-28 22:31:03,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1749 conditions, 747 events. 310/747 cut-off events. For 397/858 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 5007 event pairs, 128 based on Foata normal form. 13/540 useless extension candidates. Maximal degree in co-relation 1735. Up to 322 conditions per place. [2021-04-28 22:31:03,405 INFO L132 encePairwiseOnDemand]: 367/375 looper letters, 18 selfloop transitions, 10 changer transitions 0/69 dead transitions. [2021-04-28 22:31:03,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 69 transitions, 282 flow [2021-04-28 22:31:03,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:31:03,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:31:03,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 953 transitions. [2021-04-28 22:31:03,412 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6353333333333333 [2021-04-28 22:31:03,412 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 953 transitions. [2021-04-28 22:31:03,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 953 transitions. [2021-04-28 22:31:03,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:31:03,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 953 transitions. [2021-04-28 22:31:03,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 238.25) internal successors, (953), 4 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:03,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 375.0) internal successors, (1875), 5 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:03,422 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 375.0) internal successors, (1875), 5 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:03,422 INFO L185 Difference]: Start difference. First operand has 64 places, 57 transitions, 180 flow. Second operand 4 states and 953 transitions. [2021-04-28 22:31:03,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 69 transitions, 282 flow [2021-04-28 22:31:03,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 69 transitions, 274 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:31:03,426 INFO L241 Difference]: Finished difference. Result has 67 places, 62 transitions, 227 flow [2021-04-28 22:31:03,426 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=375, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=227, PETRI_PLACES=67, PETRI_TRANSITIONS=62} [2021-04-28 22:31:03,426 INFO L343 CegarLoopForPetriNet]: 150 programPoint places, -83 predicate places. [2021-04-28 22:31:03,426 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:31:03,426 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 62 transitions, 227 flow [2021-04-28 22:31:03,427 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 62 transitions, 227 flow [2021-04-28 22:31:03,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 62 transitions, 227 flow [2021-04-28 22:31:03,547 INFO L129 PetriNetUnfolder]: 247/683 cut-off events. [2021-04-28 22:31:03,548 INFO L130 PetriNetUnfolder]: For 447/531 co-relation queries the response was YES. [2021-04-28 22:31:03,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1503 conditions, 683 events. 247/683 cut-off events. For 447/531 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4978 event pairs, 136 based on Foata normal form. 1/449 useless extension candidates. Maximal degree in co-relation 1489. Up to 281 conditions per place. [2021-04-28 22:31:03,567 INFO L146 LiptonReduction]: Number of co-enabled transitions 2036 [2021-04-28 22:31:03,616 INFO L158 LiptonReduction]: Checked pairs total: 561 [2021-04-28 22:31:03,616 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:31:03,617 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 191 [2021-04-28 22:31:03,619 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 62 transitions, 227 flow [2021-04-28 22:31:03,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:03,620 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:31:03,620 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:31:03,620 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 22:31:03,620 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:31:03,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:31:03,631 INFO L82 PathProgramCache]: Analyzing trace with hash -507862958, now seen corresponding path program 2 times [2021-04-28 22:31:03,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:31:03,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873048367] [2021-04-28 22:31:03,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:31:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:31:03,772 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-04-28 22:31:03,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-04-28 22:31:03,853 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-04-28 22:31:03,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-04-28 22:31:03,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:03,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:31:03,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:31:03,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873048367] [2021-04-28 22:31:03,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:31:03,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:31:03,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209338302] [2021-04-28 22:31:03,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:31:03,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:31:03,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:31:03,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:31:03,978 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 375 [2021-04-28 22:31:03,980 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 62 transitions, 227 flow. Second operand has 5 states, 5 states have (on average 205.8) internal successors, (1029), 5 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:03,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:31:03,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 375 [2021-04-28 22:31:03,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:31:04,408 INFO L129 PetriNetUnfolder]: 314/718 cut-off events. [2021-04-28 22:31:04,409 INFO L130 PetriNetUnfolder]: For 834/1942 co-relation queries the response was YES. [2021-04-28 22:31:04,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2063 conditions, 718 events. 314/718 cut-off events. For 834/1942 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 4687 event pairs, 61 based on Foata normal form. 48/581 useless extension candidates. Maximal degree in co-relation 2047. Up to 331 conditions per place. [2021-04-28 22:31:04,423 INFO L132 encePairwiseOnDemand]: 367/375 looper letters, 25 selfloop transitions, 10 changer transitions 0/76 dead transitions. [2021-04-28 22:31:04,423 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 76 transitions, 365 flow [2021-04-28 22:31:04,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:31:04,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:31:04,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1050 transitions. [2021-04-28 22:31:04,430 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.56 [2021-04-28 22:31:04,431 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1050 transitions. [2021-04-28 22:31:04,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1050 transitions. [2021-04-28 22:31:04,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:31:04,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1050 transitions. [2021-04-28 22:31:04,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 210.0) internal successors, (1050), 5 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:04,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 375.0) internal successors, (2250), 6 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:04,444 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 375.0) internal successors, (2250), 6 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:04,444 INFO L185 Difference]: Start difference. First operand has 67 places, 62 transitions, 227 flow. Second operand 5 states and 1050 transitions. [2021-04-28 22:31:04,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 76 transitions, 365 flow [2021-04-28 22:31:04,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 76 transitions, 355 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-04-28 22:31:04,452 INFO L241 Difference]: Finished difference. Result has 72 places, 66 transitions, 279 flow [2021-04-28 22:31:04,455 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=375, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=279, PETRI_PLACES=72, PETRI_TRANSITIONS=66} [2021-04-28 22:31:04,455 INFO L343 CegarLoopForPetriNet]: 150 programPoint places, -78 predicate places. [2021-04-28 22:31:04,455 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:31:04,456 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 66 transitions, 279 flow [2021-04-28 22:31:04,456 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 66 transitions, 279 flow [2021-04-28 22:31:04,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 66 transitions, 279 flow [2021-04-28 22:31:04,605 INFO L129 PetriNetUnfolder]: 284/671 cut-off events. [2021-04-28 22:31:04,605 INFO L130 PetriNetUnfolder]: For 1165/1420 co-relation queries the response was YES. [2021-04-28 22:31:04,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1940 conditions, 671 events. 284/671 cut-off events. For 1165/1420 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 4540 event pairs, 66 based on Foata normal form. 2/473 useless extension candidates. Maximal degree in co-relation 1923. Up to 308 conditions per place. [2021-04-28 22:31:04,627 INFO L146 LiptonReduction]: Number of co-enabled transitions 2232 [2021-04-28 22:31:04,679 INFO L158 LiptonReduction]: Checked pairs total: 681 [2021-04-28 22:31:04,679 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:31:04,680 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 225 [2021-04-28 22:31:04,682 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 66 transitions, 279 flow [2021-04-28 22:31:04,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 205.8) internal successors, (1029), 5 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:04,683 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:31:04,683 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:31:04,683 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 22:31:04,684 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:31:04,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:31:04,684 INFO L82 PathProgramCache]: Analyzing trace with hash 212261622, now seen corresponding path program 1 times [2021-04-28 22:31:04,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:31:04,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210904645] [2021-04-28 22:31:04,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:31:04,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:31:04,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:04,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:31:04,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:04,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:31:04,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:04,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:31:04,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:04,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:31:04,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:31:04,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210904645] [2021-04-28 22:31:04,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:31:04,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:31:04,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269687698] [2021-04-28 22:31:04,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:31:04,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:31:04,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:31:04,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:31:04,864 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 375 [2021-04-28 22:31:04,865 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 66 transitions, 279 flow. Second operand has 5 states, 5 states have (on average 213.0) internal successors, (1065), 5 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:04,865 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:31:04,865 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 375 [2021-04-28 22:31:04,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:31:05,326 INFO L129 PetriNetUnfolder]: 380/861 cut-off events. [2021-04-28 22:31:05,326 INFO L130 PetriNetUnfolder]: For 1815/3747 co-relation queries the response was YES. [2021-04-28 22:31:05,333 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2960 conditions, 861 events. 380/861 cut-off events. For 1815/3747 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 5642 event pairs, 69 based on Foata normal form. 46/694 useless extension candidates. Maximal degree in co-relation 2941. Up to 433 conditions per place. [2021-04-28 22:31:05,344 INFO L132 encePairwiseOnDemand]: 366/375 looper letters, 19 selfloop transitions, 21 changer transitions 0/81 dead transitions. [2021-04-28 22:31:05,344 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 81 transitions, 457 flow [2021-04-28 22:31:05,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 22:31:05,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 22:31:05,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1297 transitions. [2021-04-28 22:31:05,352 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5764444444444444 [2021-04-28 22:31:05,352 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1297 transitions. [2021-04-28 22:31:05,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1297 transitions. [2021-04-28 22:31:05,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:31:05,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1297 transitions. [2021-04-28 22:31:05,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 216.16666666666666) internal successors, (1297), 6 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:05,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 375.0) internal successors, (2625), 7 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:05,363 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 375.0) internal successors, (2625), 7 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:05,364 INFO L185 Difference]: Start difference. First operand has 72 places, 66 transitions, 279 flow. Second operand 6 states and 1297 transitions. [2021-04-28 22:31:05,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 81 transitions, 457 flow [2021-04-28 22:31:05,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 81 transitions, 429 flow, removed 7 selfloop flow, removed 2 redundant places. [2021-04-28 22:31:05,371 INFO L241 Difference]: Finished difference. Result has 76 places, 75 transitions, 389 flow [2021-04-28 22:31:05,371 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=375, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=389, PETRI_PLACES=76, PETRI_TRANSITIONS=75} [2021-04-28 22:31:05,372 INFO L343 CegarLoopForPetriNet]: 150 programPoint places, -74 predicate places. [2021-04-28 22:31:05,372 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:31:05,372 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 75 transitions, 389 flow [2021-04-28 22:31:05,372 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 75 transitions, 389 flow [2021-04-28 22:31:05,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 75 transitions, 389 flow [2021-04-28 22:31:05,526 INFO L129 PetriNetUnfolder]: 352/796 cut-off events. [2021-04-28 22:31:05,526 INFO L130 PetriNetUnfolder]: For 1699/2190 co-relation queries the response was YES. [2021-04-28 22:31:05,532 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2756 conditions, 796 events. 352/796 cut-off events. For 1699/2190 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5386 event pairs, 43 based on Foata normal form. 1/607 useless extension candidates. Maximal degree in co-relation 2738. Up to 419 conditions per place. [2021-04-28 22:31:05,556 INFO L146 LiptonReduction]: Number of co-enabled transitions 2646 [2021-04-28 22:31:05,577 INFO L158 LiptonReduction]: Checked pairs total: 1023 [2021-04-28 22:31:05,577 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:31:05,577 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 205 [2021-04-28 22:31:05,579 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 75 transitions, 389 flow [2021-04-28 22:31:05,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 213.0) internal successors, (1065), 5 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:05,580 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:31:05,580 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:31:05,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 22:31:05,580 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:31:05,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:31:05,581 INFO L82 PathProgramCache]: Analyzing trace with hash -20644792, now seen corresponding path program 2 times [2021-04-28 22:31:05,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:31:05,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836154550] [2021-04-28 22:31:05,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:31:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:31:05,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:05,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:31:05,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:05,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:31:05,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:05,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:31:05,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:05,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 22:31:05,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:31:05,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836154550] [2021-04-28 22:31:05,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:31:05,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:31:05,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415669847] [2021-04-28 22:31:05,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:31:05,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:31:05,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:31:05,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:31:05,755 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 375 [2021-04-28 22:31:05,757 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 75 transitions, 389 flow. Second operand has 6 states, 6 states have (on average 204.83333333333334) internal successors, (1229), 6 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:05,757 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:31:05,757 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 375 [2021-04-28 22:31:05,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:31:06,323 INFO L129 PetriNetUnfolder]: 410/887 cut-off events. [2021-04-28 22:31:06,323 INFO L130 PetriNetUnfolder]: For 2755/5959 co-relation queries the response was YES. [2021-04-28 22:31:06,332 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3691 conditions, 887 events. 410/887 cut-off events. For 2755/5959 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5739 event pairs, 61 based on Foata normal form. 103/806 useless extension candidates. Maximal degree in co-relation 3671. Up to 483 conditions per place. [2021-04-28 22:31:06,347 INFO L132 encePairwiseOnDemand]: 367/375 looper letters, 15 selfloop transitions, 42 changer transitions 0/98 dead transitions. [2021-04-28 22:31:06,347 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 98 transitions, 691 flow [2021-04-28 22:31:06,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 22:31:06,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 22:31:06,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1460 transitions. [2021-04-28 22:31:06,356 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5561904761904762 [2021-04-28 22:31:06,356 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1460 transitions. [2021-04-28 22:31:06,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1460 transitions. [2021-04-28 22:31:06,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:31:06,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1460 transitions. [2021-04-28 22:31:06,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 208.57142857142858) internal successors, (1460), 7 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:06,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 375.0) internal successors, (3000), 8 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:06,370 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 375.0) internal successors, (3000), 8 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:06,370 INFO L185 Difference]: Start difference. First operand has 76 places, 75 transitions, 389 flow. Second operand 7 states and 1460 transitions. [2021-04-28 22:31:06,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 98 transitions, 691 flow [2021-04-28 22:31:06,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 98 transitions, 653 flow, removed 10 selfloop flow, removed 3 redundant places. [2021-04-28 22:31:06,381 INFO L241 Difference]: Finished difference. Result has 82 places, 95 transitions, 670 flow [2021-04-28 22:31:06,382 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=375, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=670, PETRI_PLACES=82, PETRI_TRANSITIONS=95} [2021-04-28 22:31:06,382 INFO L343 CegarLoopForPetriNet]: 150 programPoint places, -68 predicate places. [2021-04-28 22:31:06,382 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:31:06,382 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 95 transitions, 670 flow [2021-04-28 22:31:06,383 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 95 transitions, 670 flow [2021-04-28 22:31:06,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 95 transitions, 670 flow [2021-04-28 22:31:06,595 INFO L129 PetriNetUnfolder]: 389/894 cut-off events. [2021-04-28 22:31:06,595 INFO L130 PetriNetUnfolder]: For 3391/4229 co-relation queries the response was YES. [2021-04-28 22:31:06,602 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3714 conditions, 894 events. 389/894 cut-off events. For 3391/4229 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 6105 event pairs, 56 based on Foata normal form. 21/693 useless extension candidates. Maximal degree in co-relation 3693. Up to 462 conditions per place. [2021-04-28 22:31:06,624 INFO L146 LiptonReduction]: Number of co-enabled transitions 3232 [2021-04-28 22:31:06,641 INFO L158 LiptonReduction]: Checked pairs total: 1854 [2021-04-28 22:31:06,642 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:31:06,642 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 260 [2021-04-28 22:31:06,643 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 95 transitions, 670 flow [2021-04-28 22:31:06,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 204.83333333333334) internal successors, (1229), 6 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:06,644 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:31:06,644 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:31:06,644 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 22:31:06,644 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:31:06,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:31:06,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1460320805, now seen corresponding path program 1 times [2021-04-28 22:31:06,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:31:06,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868600070] [2021-04-28 22:31:06,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:31:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:31:06,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:06,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:31:06,750 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:31:06,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:31:06,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:06,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:31:06,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:31:06,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868600070] [2021-04-28 22:31:06,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:31:06,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:31:06,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102893333] [2021-04-28 22:31:06,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:31:06,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:31:06,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:31:06,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:31:06,781 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 375 [2021-04-28 22:31:06,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 95 transitions, 670 flow. Second operand has 4 states, 4 states have (on average 283.75) internal successors, (1135), 4 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:06,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:31:06,783 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 375 [2021-04-28 22:31:06,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:31:12,449 INFO L129 PetriNetUnfolder]: 27928/42960 cut-off events. [2021-04-28 22:31:12,450 INFO L130 PetriNetUnfolder]: For 28080/40882 co-relation queries the response was YES. [2021-04-28 22:31:12,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100931 conditions, 42960 events. 27928/42960 cut-off events. For 28080/40882 co-relation queries the response was YES. Maximal size of possible extension queue 5403. Compared 390230 event pairs, 13798 based on Foata normal form. 1288/15031 useless extension candidates. Maximal degree in co-relation 100908. Up to 25948 conditions per place. [2021-04-28 22:31:12,916 INFO L132 encePairwiseOnDemand]: 355/375 looper letters, 36 selfloop transitions, 33 changer transitions 0/139 dead transitions. [2021-04-28 22:31:12,917 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 139 transitions, 896 flow [2021-04-28 22:31:12,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:31:12,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:31:12,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1481 transitions. [2021-04-28 22:31:12,925 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7898666666666667 [2021-04-28 22:31:12,925 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1481 transitions. [2021-04-28 22:31:12,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1481 transitions. [2021-04-28 22:31:12,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:31:12,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1481 transitions. [2021-04-28 22:31:12,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 296.2) internal successors, (1481), 5 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:12,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 375.0) internal successors, (2250), 6 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:12,938 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 375.0) internal successors, (2250), 6 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:12,938 INFO L185 Difference]: Start difference. First operand has 82 places, 95 transitions, 670 flow. Second operand 5 states and 1481 transitions. [2021-04-28 22:31:12,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 139 transitions, 896 flow [2021-04-28 22:31:12,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 139 transitions, 842 flow, removed 19 selfloop flow, removed 2 redundant places. [2021-04-28 22:31:12,997 INFO L241 Difference]: Finished difference. Result has 87 places, 126 transitions, 870 flow [2021-04-28 22:31:12,998 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=375, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=870, PETRI_PLACES=87, PETRI_TRANSITIONS=126} [2021-04-28 22:31:12,998 INFO L343 CegarLoopForPetriNet]: 150 programPoint places, -63 predicate places. [2021-04-28 22:31:12,998 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:31:12,998 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 126 transitions, 870 flow [2021-04-28 22:31:12,999 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 126 transitions, 870 flow [2021-04-28 22:31:13,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 126 transitions, 870 flow [2021-04-28 22:31:17,331 INFO L129 PetriNetUnfolder]: 26026/40285 cut-off events. [2021-04-28 22:31:17,332 INFO L130 PetriNetUnfolder]: For 33578/109858 co-relation queries the response was YES. [2021-04-28 22:31:17,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126912 conditions, 40285 events. 26026/40285 cut-off events. For 33578/109858 co-relation queries the response was YES. Maximal size of possible extension queue 5484. Compared 368363 event pairs, 13113 based on Foata normal form. 304/13634 useless extension candidates. Maximal degree in co-relation 126887. Up to 34898 conditions per place. [2021-04-28 22:31:18,116 INFO L146 LiptonReduction]: Number of co-enabled transitions 4618 [2021-04-28 22:31:18,180 INFO L158 LiptonReduction]: Checked pairs total: 2318 [2021-04-28 22:31:18,180 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:31:18,181 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5183 [2021-04-28 22:31:18,182 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 126 transitions, 870 flow [2021-04-28 22:31:18,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 283.75) internal successors, (1135), 4 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:18,183 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:31:18,183 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:31:18,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 22:31:18,183 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:31:18,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:31:18,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1572317801, now seen corresponding path program 1 times [2021-04-28 22:31:18,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:31:18,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38742566] [2021-04-28 22:31:18,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:31:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:31:18,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:18,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:31:18,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:18,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:31:18,278 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:31:18,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:31:18,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:18,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:31:18,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:31:18,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38742566] [2021-04-28 22:31:18,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:31:18,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:31:18,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748543393] [2021-04-28 22:31:18,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:31:18,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:31:18,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:31:18,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:31:18,314 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 375 [2021-04-28 22:31:18,316 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 126 transitions, 870 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:18,316 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:31:18,316 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 375 [2021-04-28 22:31:18,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:31:24,662 INFO L129 PetriNetUnfolder]: 28423/46626 cut-off events. [2021-04-28 22:31:24,662 INFO L130 PetriNetUnfolder]: For 42801/260131 co-relation queries the response was YES. [2021-04-28 22:31:24,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 184605 conditions, 46626 events. 28423/46626 cut-off events. For 42801/260131 co-relation queries the response was YES. Maximal size of possible extension queue 6798. Compared 465599 event pairs, 5143 based on Foata normal form. 1495/17397 useless extension candidates. Maximal degree in co-relation 184578. Up to 41150 conditions per place. [2021-04-28 22:31:25,142 INFO L132 encePairwiseOnDemand]: 355/375 looper letters, 37 selfloop transitions, 64 changer transitions 0/167 dead transitions. [2021-04-28 22:31:25,142 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 167 transitions, 1289 flow [2021-04-28 22:31:25,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 22:31:25,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 22:31:25,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2077 transitions. [2021-04-28 22:31:25,154 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7912380952380952 [2021-04-28 22:31:25,154 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2077 transitions. [2021-04-28 22:31:25,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2077 transitions. [2021-04-28 22:31:25,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:31:25,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2077 transitions. [2021-04-28 22:31:25,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 296.7142857142857) internal successors, (2077), 7 states have internal predecessors, (2077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:25,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 375.0) internal successors, (3000), 8 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:25,181 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 375.0) internal successors, (3000), 8 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:25,181 INFO L185 Difference]: Start difference. First operand has 87 places, 126 transitions, 870 flow. Second operand 7 states and 2077 transitions. [2021-04-28 22:31:25,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 167 transitions, 1289 flow [2021-04-28 22:31:25,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 167 transitions, 1289 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 22:31:25,313 INFO L241 Difference]: Finished difference. Result has 96 places, 153 transitions, 1288 flow [2021-04-28 22:31:25,314 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=375, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1288, PETRI_PLACES=96, PETRI_TRANSITIONS=153} [2021-04-28 22:31:25,314 INFO L343 CegarLoopForPetriNet]: 150 programPoint places, -54 predicate places. [2021-04-28 22:31:25,314 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:31:25,314 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 153 transitions, 1288 flow [2021-04-28 22:31:25,315 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 153 transitions, 1288 flow [2021-04-28 22:31:25,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 153 transitions, 1288 flow [2021-04-28 22:31:30,394 INFO L129 PetriNetUnfolder]: 26423/43866 cut-off events. [2021-04-28 22:31:30,394 INFO L130 PetriNetUnfolder]: For 104698/535363 co-relation queries the response was YES. [2021-04-28 22:31:30,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211657 conditions, 43866 events. 26423/43866 cut-off events. For 104698/535363 co-relation queries the response was YES. Maximal size of possible extension queue 7057. Compared 445523 event pairs, 5229 based on Foata normal form. 242/14376 useless extension candidates. Maximal degree in co-relation 211627. Up to 39614 conditions per place. [2021-04-28 22:31:31,297 INFO L146 LiptonReduction]: Number of co-enabled transitions 5870 [2021-04-28 22:31:31,354 INFO L158 LiptonReduction]: Checked pairs total: 2649 [2021-04-28 22:31:31,355 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:31:31,355 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6041 [2021-04-28 22:31:31,356 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 153 transitions, 1288 flow [2021-04-28 22:31:31,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:31,357 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:31:31,357 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:31:31,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 22:31:31,358 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:31:31,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:31:31,358 INFO L82 PathProgramCache]: Analyzing trace with hash -638843022, now seen corresponding path program 1 times [2021-04-28 22:31:31,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:31:31,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956084134] [2021-04-28 22:31:31,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:31:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:31:31,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:31,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:31:31,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:31:31,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:31:31,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:31:31,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956084134] [2021-04-28 22:31:31,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:31:31,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:31:31,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851773636] [2021-04-28 22:31:31,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:31:31,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:31:31,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:31:31,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:31:31,433 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 375 [2021-04-28 22:31:31,434 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 153 transitions, 1288 flow. Second operand has 3 states, 3 states have (on average 305.0) internal successors, (915), 3 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:31,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:31:31,434 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 375 [2021-04-28 22:31:31,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:31:41,532 INFO L129 PetriNetUnfolder]: 47322/76603 cut-off events. [2021-04-28 22:31:41,532 INFO L130 PetriNetUnfolder]: For 226866/905138 co-relation queries the response was YES. [2021-04-28 22:31:42,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 369309 conditions, 76603 events. 47322/76603 cut-off events. For 226866/905138 co-relation queries the response was YES. Maximal size of possible extension queue 12018. Compared 810163 event pairs, 9204 based on Foata normal form. 815/24867 useless extension candidates. Maximal degree in co-relation 369277. Up to 70277 conditions per place. [2021-04-28 22:31:42,246 INFO L132 encePairwiseOnDemand]: 372/375 looper letters, 3 selfloop transitions, 3 changer transitions 0/153 dead transitions. [2021-04-28 22:31:42,246 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 153 transitions, 1300 flow [2021-04-28 22:31:42,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:31:42,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:31:42,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 918 transitions. [2021-04-28 22:31:42,252 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.816 [2021-04-28 22:31:42,252 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 918 transitions. [2021-04-28 22:31:42,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 918 transitions. [2021-04-28 22:31:42,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:31:42,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 918 transitions. [2021-04-28 22:31:42,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 306.0) internal successors, (918), 3 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:42,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 375.0) internal successors, (1500), 4 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:42,262 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 375.0) internal successors, (1500), 4 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:31:42,262 INFO L185 Difference]: Start difference. First operand has 96 places, 153 transitions, 1288 flow. Second operand 3 states and 918 transitions. [2021-04-28 22:31:42,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 153 transitions, 1300 flow [2021-04-28 22:31:57,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 153 transitions, 1138 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 22:31:57,355 INFO L241 Difference]: Finished difference. Result has 96 places, 153 transitions, 1137 flow [2021-04-28 22:31:57,355 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=375, PETRI_DIFFERENCE_MINUEND_FLOW=1126, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1137, PETRI_PLACES=96, PETRI_TRANSITIONS=153} [2021-04-28 22:31:57,355 INFO L343 CegarLoopForPetriNet]: 150 programPoint places, -54 predicate places. [2021-04-28 22:31:57,355 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:31:57,356 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 153 transitions, 1137 flow [2021-04-28 22:31:57,356 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 153 transitions, 1137 flow [2021-04-28 22:31:57,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 153 transitions, 1137 flow [2021-04-28 22:32:05,463 INFO L129 PetriNetUnfolder]: 46771/76105 cut-off events. [2021-04-28 22:32:05,463 INFO L130 PetriNetUnfolder]: For 129821/243513 co-relation queries the response was YES. [2021-04-28 22:32:06,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 337596 conditions, 76105 events. 46771/76105 cut-off events. For 129821/243513 co-relation queries the response was YES. Maximal size of possible extension queue 10577. Compared 794901 event pairs, 9619 based on Foata normal form. 344/24574 useless extension candidates. Maximal degree in co-relation 337566. Up to 61186 conditions per place. [2021-04-28 22:32:07,159 INFO L146 LiptonReduction]: Number of co-enabled transitions 5868 [2021-04-28 22:32:07,255 INFO L158 LiptonReduction]: Checked pairs total: 2649 [2021-04-28 22:32:07,256 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:32:07,256 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9901 [2021-04-28 22:32:07,257 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 153 transitions, 1137 flow [2021-04-28 22:32:07,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 305.0) internal successors, (915), 3 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:07,258 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:32:07,258 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:32:07,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 22:32:07,258 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:32:07,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:32:07,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1426003728, now seen corresponding path program 1 times [2021-04-28 22:32:07,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:32:07,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477823876] [2021-04-28 22:32:07,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:32:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:32:07,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:07,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:32:07,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:07,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:32:07,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:07,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:32:07,420 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:32:07,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:32:07,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:07,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:32:07,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:32:07,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477823876] [2021-04-28 22:32:07,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:32:07,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:32:07,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654400349] [2021-04-28 22:32:07,451 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:32:07,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:32:07,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:32:07,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:32:07,456 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 375 [2021-04-28 22:32:07,459 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 153 transitions, 1137 flow. Second operand has 6 states, 6 states have (on average 283.8333333333333) internal successors, (1703), 6 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:07,459 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:32:07,459 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 375 [2021-04-28 22:32:07,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:32:19,029 INFO L129 PetriNetUnfolder]: 46545/79144 cut-off events. [2021-04-28 22:32:19,030 INFO L130 PetriNetUnfolder]: For 140646/1357665 co-relation queries the response was YES. [2021-04-28 22:32:19,532 INFO L84 FinitePrefix]: Finished finitePrefix Result has 420316 conditions, 79144 events. 46545/79144 cut-off events. For 140646/1357665 co-relation queries the response was YES. Maximal size of possible extension queue 13275. Compared 884340 event pairs, 1466 based on Foata normal form. 2404/27283 useless extension candidates. Maximal degree in co-relation 420284. Up to 63118 conditions per place. [2021-04-28 22:32:19,764 INFO L132 encePairwiseOnDemand]: 355/375 looper letters, 25 selfloop transitions, 95 changer transitions 12/191 dead transitions. [2021-04-28 22:32:19,764 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 191 transitions, 1734 flow [2021-04-28 22:32:19,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 22:32:19,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 22:32:19,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2673 transitions. [2021-04-28 22:32:19,775 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.792 [2021-04-28 22:32:19,776 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2673 transitions. [2021-04-28 22:32:19,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2673 transitions. [2021-04-28 22:32:19,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:32:19,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2673 transitions. [2021-04-28 22:32:19,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:19,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 375.0) internal successors, (3750), 10 states have internal predecessors, (3750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:19,794 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 375.0) internal successors, (3750), 10 states have internal predecessors, (3750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:19,794 INFO L185 Difference]: Start difference. First operand has 96 places, 153 transitions, 1137 flow. Second operand 9 states and 2673 transitions. [2021-04-28 22:32:19,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 191 transitions, 1734 flow [2021-04-28 22:32:32,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 191 transitions, 1707 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-04-28 22:32:32,933 INFO L241 Difference]: Finished difference. Result has 103 places, 176 transitions, 1628 flow [2021-04-28 22:32:32,933 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=375, PETRI_DIFFERENCE_MINUEND_FLOW=1034, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1628, PETRI_PLACES=103, PETRI_TRANSITIONS=176} [2021-04-28 22:32:32,933 INFO L343 CegarLoopForPetriNet]: 150 programPoint places, -47 predicate places. [2021-04-28 22:32:32,933 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:32:32,934 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 176 transitions, 1628 flow [2021-04-28 22:32:32,934 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 176 transitions, 1628 flow [2021-04-28 22:32:32,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 176 transitions, 1628 flow [2021-04-28 22:32:41,006 INFO L129 PetriNetUnfolder]: 33876/62266 cut-off events. [2021-04-28 22:32:41,006 INFO L130 PetriNetUnfolder]: For 1006618/2244756 co-relation queries the response was YES. [2021-04-28 22:32:41,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 360031 conditions, 62266 events. 33876/62266 cut-off events. For 1006618/2244756 co-relation queries the response was YES. Maximal size of possible extension queue 11862. Compared 755763 event pairs, 1553 based on Foata normal form. 153/18660 useless extension candidates. Maximal degree in co-relation 359999. Up to 48700 conditions per place. [2021-04-28 22:32:42,426 INFO L146 LiptonReduction]: Number of co-enabled transitions 6374 [2021-04-28 22:32:42,502 INFO L158 LiptonReduction]: Checked pairs total: 2640 [2021-04-28 22:32:42,502 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:32:42,503 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9570 [2021-04-28 22:32:42,504 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 176 transitions, 1628 flow [2021-04-28 22:32:42,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 283.8333333333333) internal successors, (1703), 6 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:42,505 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:32:42,505 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:32:42,505 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 22:32:42,505 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:32:42,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:32:42,506 INFO L82 PathProgramCache]: Analyzing trace with hash -418912059, now seen corresponding path program 1 times [2021-04-28 22:32:42,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:32:42,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282709237] [2021-04-28 22:32:42,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:32:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:32:42,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:42,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:32:42,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:42,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:32:42,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:42,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:32:42,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:42,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:32:42,653 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:32:42,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:32:42,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:42,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:32:42,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:32:42,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282709237] [2021-04-28 22:32:42,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:32:42,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 22:32:42,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303035356] [2021-04-28 22:32:42,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 22:32:42,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:32:42,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 22:32:42,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 22:32:42,691 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 375 [2021-04-28 22:32:42,693 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 176 transitions, 1628 flow. Second operand has 7 states, 7 states have (on average 283.85714285714283) internal successors, (1987), 7 states have internal predecessors, (1987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:42,693 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:32:42,693 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 375 [2021-04-28 22:32:42,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:32:53,645 INFO L129 PetriNetUnfolder]: 34368/63538 cut-off events. [2021-04-28 22:32:53,645 INFO L130 PetriNetUnfolder]: For 214821/2381129 co-relation queries the response was YES. [2021-04-28 22:32:54,445 INFO L84 FinitePrefix]: Finished finitePrefix Result has 422003 conditions, 63538 events. 34368/63538 cut-off events. For 214821/2381129 co-relation queries the response was YES. Maximal size of possible extension queue 13167. Compared 771939 event pairs, 8 based on Foata normal form. 1561/20500 useless extension candidates. Maximal degree in co-relation 421969. Up to 48835 conditions per place. [2021-04-28 22:32:54,745 INFO L132 encePairwiseOnDemand]: 355/375 looper letters, 6 selfloop transitions, 113 changer transitions 20/197 dead transitions. [2021-04-28 22:32:54,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 197 transitions, 2091 flow [2021-04-28 22:32:54,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 22:32:54,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 22:32:54,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3245 transitions. [2021-04-28 22:32:54,759 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7866666666666666 [2021-04-28 22:32:54,759 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3245 transitions. [2021-04-28 22:32:54,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3245 transitions. [2021-04-28 22:32:54,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:32:54,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3245 transitions. [2021-04-28 22:32:54,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 295.0) internal successors, (3245), 11 states have internal predecessors, (3245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:54,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 375.0) internal successors, (4500), 12 states have internal predecessors, (4500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:54,782 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 375.0) internal successors, (4500), 12 states have internal predecessors, (4500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:54,782 INFO L185 Difference]: Start difference. First operand has 103 places, 176 transitions, 1628 flow. Second operand 11 states and 3245 transitions. [2021-04-28 22:32:54,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 197 transitions, 2091 flow [2021-04-28 22:36:04,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 197 transitions, 1686 flow, removed 130 selfloop flow, removed 8 redundant places. [2021-04-28 22:36:04,877 INFO L241 Difference]: Finished difference. Result has 108 places, 174 transitions, 1481 flow [2021-04-28 22:36:04,877 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=375, PETRI_DIFFERENCE_MINUEND_FLOW=1199, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1481, PETRI_PLACES=108, PETRI_TRANSITIONS=174} [2021-04-28 22:36:04,877 INFO L343 CegarLoopForPetriNet]: 150 programPoint places, -42 predicate places. [2021-04-28 22:36:04,877 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:36:04,877 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 174 transitions, 1481 flow [2021-04-28 22:36:04,878 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 174 transitions, 1481 flow [2021-04-28 22:36:04,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 174 transitions, 1481 flow [2021-04-28 22:36:10,295 INFO L129 PetriNetUnfolder]: 28179/53923 cut-off events. [2021-04-28 22:36:10,296 INFO L130 PetriNetUnfolder]: For 200076/332758 co-relation queries the response was YES. [2021-04-28 22:36:11,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 241503 conditions, 53923 events. 28179/53923 cut-off events. For 200076/332758 co-relation queries the response was YES. Maximal size of possible extension queue 10293. Compared 679329 event pairs, 10 based on Foata normal form. 45/15591 useless extension candidates. Maximal degree in co-relation 241470. Up to 31104 conditions per place. [2021-04-28 22:36:12,205 INFO L146 LiptonReduction]: Number of co-enabled transitions 6280 [2021-04-28 22:36:14,994 INFO L158 LiptonReduction]: Checked pairs total: 2691 [2021-04-28 22:36:14,994 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:36:14,995 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10118 [2021-04-28 22:36:14,996 INFO L480 AbstractCegarLoop]: Abstraction has has 106 places, 174 transitions, 1481 flow [2021-04-28 22:36:14,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 283.85714285714283) internal successors, (1987), 7 states have internal predecessors, (1987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:36:14,997 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:36:14,997 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:36:14,997 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-28 22:36:14,997 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:36:14,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:36:14,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1592236554, now seen corresponding path program 1 times [2021-04-28 22:36:14,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:36:14,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523436207] [2021-04-28 22:36:14,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:36:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:36:15,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:36:15,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:36:15,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:36:15,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:36:15,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:36:15,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:36:15,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:36:15,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523436207] [2021-04-28 22:36:15,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:36:15,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:36:15,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909708694] [2021-04-28 22:36:15,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:36:15,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:36:15,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:36:15,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:36:15,132 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 375 [2021-04-28 22:36:15,133 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 174 transitions, 1481 flow. Second operand has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:36:15,133 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:36:15,133 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 375 [2021-04-28 22:36:15,134 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:36:28,700 INFO L129 PetriNetUnfolder]: 52243/98855 cut-off events. [2021-04-28 22:36:28,700 INFO L130 PetriNetUnfolder]: For 502625/909852 co-relation queries the response was YES. [2021-04-28 22:36:29,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 442772 conditions, 98855 events. 52243/98855 cut-off events. For 502625/909852 co-relation queries the response was YES. Maximal size of possible extension queue 21225. Compared 1307225 event pairs, 14 based on Foata normal form. 170/28228 useless extension candidates. Maximal degree in co-relation 442737. Up to 58752 conditions per place. [2021-04-28 22:36:29,971 INFO L132 encePairwiseOnDemand]: 372/375 looper letters, 3 selfloop transitions, 2 changer transitions 0/175 dead transitions. [2021-04-28 22:36:29,971 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 175 transitions, 1493 flow [2021-04-28 22:36:29,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:36:29,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:36:29,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 950 transitions. [2021-04-28 22:36:29,978 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2021-04-28 22:36:29,978 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 950 transitions. [2021-04-28 22:36:29,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 950 transitions. [2021-04-28 22:36:29,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:36:29,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 950 transitions. [2021-04-28 22:36:29,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 237.5) internal successors, (950), 4 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:36:29,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 375.0) internal successors, (1875), 5 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:36:29,985 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 375.0) internal successors, (1875), 5 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:36:29,986 INFO L185 Difference]: Start difference. First operand has 106 places, 174 transitions, 1481 flow. Second operand 4 states and 950 transitions. [2021-04-28 22:36:29,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 175 transitions, 1493 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown