/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_bench_longer-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 04:28:14,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 04:28:14,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 04:28:14,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 04:28:14,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 04:28:14,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 04:28:14,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 04:28:14,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 04:28:14,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 04:28:14,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 04:28:14,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 04:28:14,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 04:28:14,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 04:28:14,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 04:28:14,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 04:28:14,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 04:28:14,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 04:28:14,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 04:28:14,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 04:28:14,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 04:28:14,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 04:28:14,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 04:28:14,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 04:28:14,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 04:28:14,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 04:28:14,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 04:28:14,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 04:28:14,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 04:28:14,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 04:28:14,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 04:28:14,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 04:28:14,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 04:28:14,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 04:28:14,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 04:28:14,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 04:28:14,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 04:28:14,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 04:28:14,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 04:28:14,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 04:28:14,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 04:28:14,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 04:28:14,446 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-RepeatedSemanticLbe.epf [2021-06-11 04:28:14,467 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 04:28:14,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 04:28:14,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 04:28:14,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 04:28:14,469 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 04:28:14,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 04:28:14,469 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 04:28:14,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 04:28:14,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 04:28:14,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 04:28:14,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 04:28:14,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 04:28:14,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 04:28:14,470 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 04:28:14,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 04:28:14,471 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 04:28:14,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 04:28:14,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 04:28:14,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 04:28:14,471 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 04:28:14,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 04:28:14,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 04:28:14,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 04:28:14,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 04:28:14,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 04:28:14,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 04:28:14,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 04:28:14,472 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 04:28:14,472 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 04:28:14,472 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 04:28:14,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 04:28:14,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 04:28:14,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 04:28:14,712 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 04:28:14,713 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 04:28:14,713 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_bench_longer-2.i [2021-06-11 04:28:14,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3627be2bb/ba15c1501c9843ecae3ebb485ae70850/FLAG41d9304f1 [2021-06-11 04:28:15,191 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 04:28:15,192 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longer-2.i [2021-06-11 04:28:15,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3627be2bb/ba15c1501c9843ecae3ebb485ae70850/FLAG41d9304f1 [2021-06-11 04:28:15,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3627be2bb/ba15c1501c9843ecae3ebb485ae70850 [2021-06-11 04:28:15,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 04:28:15,213 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 04:28:15,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 04:28:15,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 04:28:15,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 04:28:15,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:28:15" (1/1) ... [2021-06-11 04:28:15,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43484dbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:28:15, skipping insertion in model container [2021-06-11 04:28:15,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:28:15" (1/1) ... [2021-06-11 04:28:15,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 04:28:15,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 04:28:15,535 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/fib_bench_longer-2.i[30929,30942] [2021-06-11 04:28:15,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 04:28:15,543 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 04:28:15,571 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/fib_bench_longer-2.i[30929,30942] [2021-06-11 04:28:15,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 04:28:15,623 INFO L208 MainTranslator]: Completed translation [2021-06-11 04:28:15,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:28:15 WrapperNode [2021-06-11 04:28:15,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 04:28:15,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 04:28:15,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 04:28:15,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 04:28:15,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:28:15" (1/1) ... [2021-06-11 04:28:15,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:28:15" (1/1) ... [2021-06-11 04:28:15,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 04:28:15,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 04:28:15,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 04:28:15,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 04:28:15,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:28:15" (1/1) ... [2021-06-11 04:28:15,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:28:15" (1/1) ... [2021-06-11 04:28:15,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:28:15" (1/1) ... [2021-06-11 04:28:15,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:28:15" (1/1) ... [2021-06-11 04:28:15,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:28:15" (1/1) ... [2021-06-11 04:28:15,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:28:15" (1/1) ... [2021-06-11 04:28:15,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:28:15" (1/1) ... [2021-06-11 04:28:15,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 04:28:15,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 04:28:15,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 04:28:15,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 04:28:15,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:28:15" (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 [2021-06-11 04:28:15,729 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-06-11 04:28:15,730 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-06-11 04:28:15,730 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-06-11 04:28:15,731 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-06-11 04:28:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 04:28:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 04:28:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 04:28:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 04:28:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 04:28:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 04:28:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 04:28:15,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 04:28:15,733 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 04:28:15,935 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 04:28:15,936 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-06-11 04:28:15,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:28:15 BoogieIcfgContainer [2021-06-11 04:28:15,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 04:28:15,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 04:28:15,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 04:28:15,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 04:28:15,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 04:28:15" (1/3) ... [2021-06-11 04:28:15,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636d334a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:28:15, skipping insertion in model container [2021-06-11 04:28:15,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:28:15" (2/3) ... [2021-06-11 04:28:15,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636d334a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:28:15, skipping insertion in model container [2021-06-11 04:28:15,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:28:15" (3/3) ... [2021-06-11 04:28:15,941 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_bench_longer-2.i [2021-06-11 04:28:15,945 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 04:28:15,947 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 04:28:15,948 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 04:28:15,963 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,963 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,963 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,963 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,963 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,963 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,964 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,964 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,964 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,964 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,964 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,964 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,964 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,965 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,965 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,965 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,965 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,965 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,965 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,965 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,966 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,966 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,966 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,966 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,966 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,966 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,966 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,966 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,967 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,967 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,967 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,967 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,967 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,967 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,967 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,968 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,968 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,968 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,968 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,968 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,968 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,968 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,968 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,969 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,969 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,969 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,969 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,969 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,969 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,969 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,969 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,970 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,970 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,970 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,970 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,970 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,970 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,970 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,970 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,971 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,972 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,972 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,972 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,972 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,972 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,972 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,975 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,976 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,976 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,976 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,976 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,976 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:28:15,977 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 04:28:15,989 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-11 04:28:16,004 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 04:28:16,004 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 04:28:16,004 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 04:28:16,005 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 04:28:16,005 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 04:28:16,005 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 04:28:16,005 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 04:28:16,005 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 04:28:16,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 134 flow [2021-06-11 04:28:16,050 INFO L129 PetriNetUnfolder]: 5/60 cut-off events. [2021-06-11 04:28:16,050 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 04:28:16,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 60 events. 5/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-06-11 04:28:16,054 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 62 transitions, 134 flow [2021-06-11 04:28:16,057 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 60 transitions, 126 flow [2021-06-11 04:28:16,059 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:16,066 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 60 transitions, 126 flow [2021-06-11 04:28:16,070 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 60 transitions, 126 flow [2021-06-11 04:28:16,071 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 60 transitions, 126 flow [2021-06-11 04:28:16,090 INFO L129 PetriNetUnfolder]: 5/60 cut-off events. [2021-06-11 04:28:16,091 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 04:28:16,091 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 60 events. 5/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 96 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-06-11 04:28:16,093 INFO L151 LiptonReduction]: Number of co-enabled transitions 1080 [2021-06-11 04:28:16,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:16,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:16,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:16,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:16,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:16,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:16,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:16,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:16,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:16,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:16,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:16,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:16,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:16,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:16,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:16,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:16,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:16,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:16,712 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-06-11 04:28:16,714 INFO L147 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size 1 [2021-06-11 04:28:16,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:16,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:16,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:16,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:16,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:16,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:16,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:16,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:17,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:17,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 04:28:17,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:17,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:17,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:17,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:17,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:17,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:17,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:17,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:17,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:17,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:17,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:17,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:17,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:17,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:17,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 04:28:17,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:17,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 04:28:17,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:17,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:17,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:17,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 04:28:17,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:17,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:17,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:17,841 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-06-11 04:28:18,068 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-06-11 04:28:18,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:18,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:18,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:18,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:18,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:18,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:18,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:18,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:18,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:18,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:18,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:18,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:18,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 04:28:18,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:18,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:18,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 04:28:18,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:18,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:18,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:28:18,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:18,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:18,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:18,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:18,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:18,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:18,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:18,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:18,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:18,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:18,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:18,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:18,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 04:28:18,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:18,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:18,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:18,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:18,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 04:28:18,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-11 04:28:18,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:18,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:18,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:18,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:18,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-06-11 04:28:18,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 04:28:18,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:18,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:18,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-06-11 04:28:18,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-06-11 04:28:18,594 INFO L163 LiptonReduction]: Checked pairs total: 923 [2021-06-11 04:28:18,594 INFO L165 LiptonReduction]: Total number of compositions: 50 [2021-06-11 04:28:18,596 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2538 [2021-06-11 04:28:18,601 INFO L129 PetriNetUnfolder]: 2/11 cut-off events. [2021-06-11 04:28:18,601 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 04:28:18,601 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:18,602 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-06-11 04:28:18,602 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:18,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:18,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1183839545, now seen corresponding path program 1 times [2021-06-11 04:28:18,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:18,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047860365] [2021-06-11 04:28:18,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:18,731 INFO L142 QuantifierPusher]: treesize reduction 13, result has 45.8 percent of original size [2021-06-11 04:28:18,733 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-06-11 04:28:18,746 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-06-11 04:28:18,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:18,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:18,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047860365] [2021-06-11 04:28:18,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 04:28:18,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 04:28:18,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242448930] [2021-06-11 04:28:18,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 04:28:18,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:18,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 04:28:18,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 04:28:18,770 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:18,773 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 13 transitions, 32 flow. Second operand has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 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) [2021-06-11 04:28:18,773 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:18,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:18,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:18,814 INFO L129 PetriNetUnfolder]: 31/63 cut-off events. [2021-06-11 04:28:18,814 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 04:28:18,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 63 events. 31/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 155 event pairs, 2 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 111. Up to 37 conditions per place. [2021-06-11 04:28:18,817 INFO L132 encePairwiseOnDemand]: 106/112 looper letters, 5 selfloop transitions, 7 changer transitions 3/22 dead transitions. [2021-06-11 04:28:18,817 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 22 transitions, 80 flow [2021-06-11 04:28:18,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 04:28:18,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 04:28:18,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 402 transitions. [2021-06-11 04:28:18,830 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7178571428571429 [2021-06-11 04:28:18,830 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 402 transitions. [2021-06-11 04:28:18,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 402 transitions. [2021-06-11 04:28:18,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:18,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 402 transitions. [2021-06-11 04:28:18,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 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) [2021-06-11 04:28:18,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 112.0) internal successors, (672), 6 states have internal predecessors, (672), 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) [2021-06-11 04:28:18,844 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 112.0) internal successors, (672), 6 states have internal predecessors, (672), 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) [2021-06-11 04:28:18,845 INFO L185 Difference]: Start difference. First operand has 18 places, 13 transitions, 32 flow. Second operand 5 states and 402 transitions. [2021-06-11 04:28:18,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 22 transitions, 80 flow [2021-06-11 04:28:18,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 22 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 04:28:18,848 INFO L241 Difference]: Finished difference. Result has 23 places, 18 transitions, 75 flow [2021-06-11 04:28:18,849 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=75, PETRI_PLACES=23, PETRI_TRANSITIONS=18} [2021-06-11 04:28:18,849 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 5 predicate places. [2021-06-11 04:28:18,849 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:18,849 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 18 transitions, 75 flow [2021-06-11 04:28:18,850 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 18 transitions, 75 flow [2021-06-11 04:28:18,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 22 places, 18 transitions, 75 flow [2021-06-11 04:28:18,862 INFO L129 PetriNetUnfolder]: 12/36 cut-off events. [2021-06-11 04:28:18,862 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-06-11 04:28:18,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 36 events. 12/36 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 77 event pairs, 1 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 77. Up to 15 conditions per place. [2021-06-11 04:28:18,863 INFO L151 LiptonReduction]: Number of co-enabled transitions 82 [2021-06-11 04:28:18,865 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:18,865 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:18,865 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-06-11 04:28:18,866 INFO L480 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 75 flow [2021-06-11 04:28:18,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 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) [2021-06-11 04:28:18,866 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:18,866 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:18,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 04:28:18,867 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:18,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:18,867 INFO L82 PathProgramCache]: Analyzing trace with hash 496959854, now seen corresponding path program 1 times [2021-06-11 04:28:18,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:18,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734137136] [2021-06-11 04:28:18,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:18,947 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-06-11 04:28:18,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:18,952 INFO L142 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size [2021-06-11 04:28:18,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:18,963 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:18,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:18,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:18,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734137136] [2021-06-11 04:28:18,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 04:28:18,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 04:28:18,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095429808] [2021-06-11 04:28:18,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 04:28:18,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:18,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 04:28:18,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 04:28:18,973 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:18,974 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 75 flow. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 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) [2021-06-11 04:28:18,974 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:18,974 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:18,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:19,011 INFO L129 PetriNetUnfolder]: 25/57 cut-off events. [2021-06-11 04:28:19,011 INFO L130 PetriNetUnfolder]: For 37/43 co-relation queries the response was YES. [2021-06-11 04:28:19,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 57 events. 25/57 cut-off events. For 37/43 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 140 event pairs, 0 based on Foata normal form. 8/65 useless extension candidates. Maximal degree in co-relation 161. Up to 33 conditions per place. [2021-06-11 04:28:19,014 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 5 selfloop transitions, 14 changer transitions 0/26 dead transitions. [2021-06-11 04:28:19,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 26 transitions, 152 flow [2021-06-11 04:28:19,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 04:28:19,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 04:28:19,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 558 transitions. [2021-06-11 04:28:19,016 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7117346938775511 [2021-06-11 04:28:19,016 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 558 transitions. [2021-06-11 04:28:19,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 558 transitions. [2021-06-11 04:28:19,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:19,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 558 transitions. [2021-06-11 04:28:19,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 79.71428571428571) internal successors, (558), 7 states have internal predecessors, (558), 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) [2021-06-11 04:28:19,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 112.0) internal successors, (896), 8 states have internal predecessors, (896), 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) [2021-06-11 04:28:19,021 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 112.0) internal successors, (896), 8 states have internal predecessors, (896), 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) [2021-06-11 04:28:19,021 INFO L185 Difference]: Start difference. First operand has 22 places, 18 transitions, 75 flow. Second operand 7 states and 558 transitions. [2021-06-11 04:28:19,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 26 transitions, 152 flow [2021-06-11 04:28:19,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 26 transitions, 152 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 04:28:19,022 INFO L241 Difference]: Finished difference. Result has 31 places, 25 transitions, 160 flow [2021-06-11 04:28:19,022 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=160, PETRI_PLACES=31, PETRI_TRANSITIONS=25} [2021-06-11 04:28:19,023 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 13 predicate places. [2021-06-11 04:28:19,023 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:19,024 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 25 transitions, 160 flow [2021-06-11 04:28:19,024 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 25 transitions, 160 flow [2021-06-11 04:28:19,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 25 transitions, 160 flow [2021-06-11 04:28:19,029 INFO L129 PetriNetUnfolder]: 20/51 cut-off events. [2021-06-11 04:28:19,029 INFO L130 PetriNetUnfolder]: For 72/73 co-relation queries the response was YES. [2021-06-11 04:28:19,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 51 events. 20/51 cut-off events. For 72/73 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 131 event pairs, 0 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 168. Up to 22 conditions per place. [2021-06-11 04:28:19,030 INFO L151 LiptonReduction]: Number of co-enabled transitions 110 [2021-06-11 04:28:19,031 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:19,031 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:19,031 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-06-11 04:28:19,032 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 25 transitions, 160 flow [2021-06-11 04:28:19,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 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) [2021-06-11 04:28:19,032 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:19,032 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:19,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 04:28:19,032 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:19,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:19,033 INFO L82 PathProgramCache]: Analyzing trace with hash 496533852, now seen corresponding path program 1 times [2021-06-11 04:28:19,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:19,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972043019] [2021-06-11 04:28:19,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:19,077 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:19,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,083 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 04:28:19,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:19,090 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:19,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:19,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972043019] [2021-06-11 04:28:19,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 04:28:19,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 04:28:19,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594029376] [2021-06-11 04:28:19,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 04:28:19,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:19,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 04:28:19,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-11 04:28:19,097 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:19,098 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 160 flow. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 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) [2021-06-11 04:28:19,098 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:19,098 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:19,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:19,126 INFO L129 PetriNetUnfolder]: 27/62 cut-off events. [2021-06-11 04:28:19,126 INFO L130 PetriNetUnfolder]: For 119/125 co-relation queries the response was YES. [2021-06-11 04:28:19,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 62 events. 27/62 cut-off events. For 119/125 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 159 event pairs, 0 based on Foata normal form. 8/70 useless extension candidates. Maximal degree in co-relation 245. Up to 38 conditions per place. [2021-06-11 04:28:19,127 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 12 selfloop transitions, 9 changer transitions 0/28 dead transitions. [2021-06-11 04:28:19,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 28 transitions, 228 flow [2021-06-11 04:28:19,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 04:28:19,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 04:28:19,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 398 transitions. [2021-06-11 04:28:19,128 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7107142857142857 [2021-06-11 04:28:19,128 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 398 transitions. [2021-06-11 04:28:19,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 398 transitions. [2021-06-11 04:28:19,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:19,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 398 transitions. [2021-06-11 04:28:19,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 79.6) internal successors, (398), 5 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:28:19,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 112.0) internal successors, (672), 6 states have internal predecessors, (672), 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) [2021-06-11 04:28:19,130 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 112.0) internal successors, (672), 6 states have internal predecessors, (672), 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) [2021-06-11 04:28:19,130 INFO L185 Difference]: Start difference. First operand has 31 places, 25 transitions, 160 flow. Second operand 5 states and 398 transitions. [2021-06-11 04:28:19,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 28 transitions, 228 flow [2021-06-11 04:28:19,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 28 transitions, 201 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-06-11 04:28:19,133 INFO L241 Difference]: Finished difference. Result has 34 places, 26 transitions, 170 flow [2021-06-11 04:28:19,134 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=170, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2021-06-11 04:28:19,134 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 16 predicate places. [2021-06-11 04:28:19,134 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:19,134 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 26 transitions, 170 flow [2021-06-11 04:28:19,134 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 26 transitions, 170 flow [2021-06-11 04:28:19,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 26 transitions, 170 flow [2021-06-11 04:28:19,139 INFO L129 PetriNetUnfolder]: 24/59 cut-off events. [2021-06-11 04:28:19,139 INFO L130 PetriNetUnfolder]: For 106/107 co-relation queries the response was YES. [2021-06-11 04:28:19,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 59 events. 24/59 cut-off events. For 106/107 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 163 event pairs, 0 based on Foata normal form. 1/60 useless extension candidates. Maximal degree in co-relation 196. Up to 21 conditions per place. [2021-06-11 04:28:19,141 INFO L151 LiptonReduction]: Number of co-enabled transitions 114 [2021-06-11 04:28:19,143 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:19,143 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:19,143 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-06-11 04:28:19,146 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 170 flow [2021-06-11 04:28:19,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 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) [2021-06-11 04:28:19,146 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:19,146 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:19,146 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 04:28:19,146 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:19,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:19,147 INFO L82 PathProgramCache]: Analyzing trace with hash 496871442, now seen corresponding path program 2 times [2021-06-11 04:28:19,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:19,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387015352] [2021-06-11 04:28:19,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:19,196 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:19,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,200 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 04:28:19,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:19,208 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:19,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:19,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387015352] [2021-06-11 04:28:19,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 04:28:19,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 04:28:19,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244834704] [2021-06-11 04:28:19,213 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 04:28:19,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:19,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 04:28:19,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 04:28:19,214 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:19,214 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 170 flow. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 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) [2021-06-11 04:28:19,214 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:19,214 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:19,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:19,256 INFO L129 PetriNetUnfolder]: 31/72 cut-off events. [2021-06-11 04:28:19,256 INFO L130 PetriNetUnfolder]: For 171/177 co-relation queries the response was YES. [2021-06-11 04:28:19,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 72 events. 31/72 cut-off events. For 171/177 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 203 event pairs, 0 based on Foata normal form. 8/80 useless extension candidates. Maximal degree in co-relation 287. Up to 41 conditions per place. [2021-06-11 04:28:19,257 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 12 selfloop transitions, 16 changer transitions 0/35 dead transitions. [2021-06-11 04:28:19,257 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 35 transitions, 293 flow [2021-06-11 04:28:19,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 04:28:19,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 04:28:19,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 558 transitions. [2021-06-11 04:28:19,258 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7117346938775511 [2021-06-11 04:28:19,258 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 558 transitions. [2021-06-11 04:28:19,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 558 transitions. [2021-06-11 04:28:19,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:19,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 558 transitions. [2021-06-11 04:28:19,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 79.71428571428571) internal successors, (558), 7 states have internal predecessors, (558), 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) [2021-06-11 04:28:19,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 112.0) internal successors, (896), 8 states have internal predecessors, (896), 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) [2021-06-11 04:28:19,261 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 112.0) internal successors, (896), 8 states have internal predecessors, (896), 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) [2021-06-11 04:28:19,261 INFO L185 Difference]: Start difference. First operand has 34 places, 26 transitions, 170 flow. Second operand 7 states and 558 transitions. [2021-06-11 04:28:19,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 35 transitions, 293 flow [2021-06-11 04:28:19,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 35 transitions, 274 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-06-11 04:28:19,263 INFO L241 Difference]: Finished difference. Result has 39 places, 33 transitions, 261 flow [2021-06-11 04:28:19,263 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=261, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2021-06-11 04:28:19,263 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 21 predicate places. [2021-06-11 04:28:19,263 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:19,263 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 33 transitions, 261 flow [2021-06-11 04:28:19,263 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 33 transitions, 261 flow [2021-06-11 04:28:19,264 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 33 transitions, 261 flow [2021-06-11 04:28:19,267 INFO L129 PetriNetUnfolder]: 28/67 cut-off events. [2021-06-11 04:28:19,267 INFO L130 PetriNetUnfolder]: For 211/212 co-relation queries the response was YES. [2021-06-11 04:28:19,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 67 events. 28/67 cut-off events. For 211/212 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 202 event pairs, 0 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 281. Up to 24 conditions per place. [2021-06-11 04:28:19,268 INFO L151 LiptonReduction]: Number of co-enabled transitions 138 [2021-06-11 04:28:19,270 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:19,270 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:19,270 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-06-11 04:28:19,271 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 261 flow [2021-06-11 04:28:19,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 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) [2021-06-11 04:28:19,271 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:19,271 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:19,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 04:28:19,271 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:19,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:19,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1774093782, now seen corresponding path program 2 times [2021-06-11 04:28:19,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:19,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778550215] [2021-06-11 04:28:19,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:19,292 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-06-11 04:28:19,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,296 INFO L142 QuantifierPusher]: treesize reduction 6, result has 60.0 percent of original size [2021-06-11 04:28:19,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:19,301 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-06-11 04:28:19,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:19,310 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:19,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:19,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778550215] [2021-06-11 04:28:19,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500350999] [2021-06-11 04:28:19,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:19,372 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 04:28:19,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:19,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-11 04:28:19,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:19,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:19,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:19,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:19,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:19,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:19,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:19,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:19,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:19,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:19,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:19,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:19,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:19,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:19,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:19,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:19,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:19,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:19,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:19,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:19,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:19,480 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-06-11 04:28:19,481 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-11 04:28:19,483 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:19,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:19,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:19,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:19,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:19,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:19,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-06-11 04:28:19,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650530538] [2021-06-11 04:28:19,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-11 04:28:19,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:19,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-11 04:28:19,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-06-11 04:28:19,503 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:19,503 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 261 flow. Second operand has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 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) [2021-06-11 04:28:19,504 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:19,504 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:19,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:19,605 INFO L129 PetriNetUnfolder]: 42/100 cut-off events. [2021-06-11 04:28:19,606 INFO L130 PetriNetUnfolder]: For 351/357 co-relation queries the response was YES. [2021-06-11 04:28:19,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 100 events. 42/100 cut-off events. For 351/357 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 328 event pairs, 0 based on Foata normal form. 9/109 useless extension candidates. Maximal degree in co-relation 487. Up to 53 conditions per place. [2021-06-11 04:28:19,607 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 13 selfloop transitions, 29 changer transitions 0/49 dead transitions. [2021-06-11 04:28:19,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 49 transitions, 509 flow [2021-06-11 04:28:19,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 04:28:19,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 04:28:19,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 877 transitions. [2021-06-11 04:28:19,608 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7118506493506493 [2021-06-11 04:28:19,609 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 877 transitions. [2021-06-11 04:28:19,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 877 transitions. [2021-06-11 04:28:19,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:19,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 877 transitions. [2021-06-11 04:28:19,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.72727272727273) internal successors, (877), 11 states have internal predecessors, (877), 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) [2021-06-11 04:28:19,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 112.0) internal successors, (1344), 12 states have internal predecessors, (1344), 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) [2021-06-11 04:28:19,612 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 112.0) internal successors, (1344), 12 states have internal predecessors, (1344), 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) [2021-06-11 04:28:19,612 INFO L185 Difference]: Start difference. First operand has 39 places, 33 transitions, 261 flow. Second operand 11 states and 877 transitions. [2021-06-11 04:28:19,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 49 transitions, 509 flow [2021-06-11 04:28:19,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 49 transitions, 474 flow, removed 14 selfloop flow, removed 2 redundant places. [2021-06-11 04:28:19,614 INFO L241 Difference]: Finished difference. Result has 50 places, 49 transitions, 478 flow [2021-06-11 04:28:19,615 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=478, PETRI_PLACES=50, PETRI_TRANSITIONS=49} [2021-06-11 04:28:19,615 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 32 predicate places. [2021-06-11 04:28:19,615 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:19,615 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 49 transitions, 478 flow [2021-06-11 04:28:19,615 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 49 transitions, 478 flow [2021-06-11 04:28:19,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 49 transitions, 478 flow [2021-06-11 04:28:19,641 INFO L129 PetriNetUnfolder]: 42/98 cut-off events. [2021-06-11 04:28:19,641 INFO L130 PetriNetUnfolder]: For 443/443 co-relation queries the response was YES. [2021-06-11 04:28:19,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 98 events. 42/98 cut-off events. For 443/443 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 313 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 478. Up to 41 conditions per place. [2021-06-11 04:28:19,642 INFO L151 LiptonReduction]: Number of co-enabled transitions 188 [2021-06-11 04:28:19,646 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:19,646 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:19,646 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-06-11 04:28:19,646 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 49 transitions, 478 flow [2021-06-11 04:28:19,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 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) [2021-06-11 04:28:19,647 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:19,647 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:19,847 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:19,847 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:19,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:19,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1787319343, now seen corresponding path program 3 times [2021-06-11 04:28:19,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:19,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325903090] [2021-06-11 04:28:19,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:19,865 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:19,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,870 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 04:28:19,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:19,876 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-06-11 04:28:19,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:19,882 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:19,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:19,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325903090] [2021-06-11 04:28:19,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188035332] [2021-06-11 04:28:19,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:19,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-11 04:28:19,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:19,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-11 04:28:19,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:19,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:19,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:19,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:19,963 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-06-11 04:28:19,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:19,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:19,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:19,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:19,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:19,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:19,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:19,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:19,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:19,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:19,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:19,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:19,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:19,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:19,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:19,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:19,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:19,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:19,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:19,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:19,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:20,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,002 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:20,002 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:20,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:20,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:20,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:20,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-06-11 04:28:20,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034100291] [2021-06-11 04:28:20,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-11 04:28:20,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:20,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-11 04:28:20,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-06-11 04:28:20,015 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:20,015 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 49 transitions, 478 flow. Second operand has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 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) [2021-06-11 04:28:20,015 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:20,015 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:20,015 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:20,052 INFO L129 PetriNetUnfolder]: 44/106 cut-off events. [2021-06-11 04:28:20,053 INFO L130 PetriNetUnfolder]: For 530/536 co-relation queries the response was YES. [2021-06-11 04:28:20,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 106 events. 44/106 cut-off events. For 530/536 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 369 event pairs, 0 based on Foata normal form. 8/114 useless extension candidates. Maximal degree in co-relation 583. Up to 64 conditions per place. [2021-06-11 04:28:20,054 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 35 selfloop transitions, 14 changer transitions 0/56 dead transitions. [2021-06-11 04:28:20,054 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 56 transitions, 669 flow [2021-06-11 04:28:20,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 04:28:20,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 04:28:20,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 477 transitions. [2021-06-11 04:28:20,055 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7098214285714286 [2021-06-11 04:28:20,055 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 477 transitions. [2021-06-11 04:28:20,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 477 transitions. [2021-06-11 04:28:20,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:20,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 477 transitions. [2021-06-11 04:28:20,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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) [2021-06-11 04:28:20,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 112.0) internal successors, (784), 7 states have internal predecessors, (784), 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) [2021-06-11 04:28:20,057 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 112.0) internal successors, (784), 7 states have internal predecessors, (784), 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) [2021-06-11 04:28:20,057 INFO L185 Difference]: Start difference. First operand has 50 places, 49 transitions, 478 flow. Second operand 6 states and 477 transitions. [2021-06-11 04:28:20,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 56 transitions, 669 flow [2021-06-11 04:28:20,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 56 transitions, 512 flow, removed 66 selfloop flow, removed 6 redundant places. [2021-06-11 04:28:20,061 INFO L241 Difference]: Finished difference. Result has 51 places, 51 transitions, 424 flow [2021-06-11 04:28:20,061 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=424, PETRI_PLACES=51, PETRI_TRANSITIONS=51} [2021-06-11 04:28:20,061 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 33 predicate places. [2021-06-11 04:28:20,062 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:20,062 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 51 transitions, 424 flow [2021-06-11 04:28:20,062 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 51 transitions, 424 flow [2021-06-11 04:28:20,062 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 51 transitions, 424 flow [2021-06-11 04:28:20,068 INFO L129 PetriNetUnfolder]: 44/104 cut-off events. [2021-06-11 04:28:20,068 INFO L130 PetriNetUnfolder]: For 391/391 co-relation queries the response was YES. [2021-06-11 04:28:20,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 104 events. 44/104 cut-off events. For 391/391 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 357 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 422. Up to 45 conditions per place. [2021-06-11 04:28:20,069 INFO L151 LiptonReduction]: Number of co-enabled transitions 194 [2021-06-11 04:28:20,074 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:20,074 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:20,074 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-06-11 04:28:20,075 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 51 transitions, 424 flow [2021-06-11 04:28:20,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 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) [2021-06-11 04:28:20,076 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:20,076 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:20,288 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:20,289 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:20,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:20,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1776854053, now seen corresponding path program 4 times [2021-06-11 04:28:20,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:20,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500549456] [2021-06-11 04:28:20,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:20,306 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:20,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,311 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:20,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:20,316 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-06-11 04:28:20,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:20,323 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:20,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:20,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500549456] [2021-06-11 04:28:20,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112929125] [2021-06-11 04:28:20,328 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:20,379 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 04:28:20,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:20,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-11 04:28:20,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:20,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:20,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:20,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:20,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:20,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:20,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:20,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:20,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:20,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:20,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:20,415 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-06-11 04:28:20,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:20,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:20,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:20,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:20,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:20,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:20,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:20,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:20,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:20,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:20,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-06-11 04:28:20,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727909339] [2021-06-11 04:28:20,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-11 04:28:20,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:20,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-11 04:28:20,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-06-11 04:28:20,445 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:20,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 51 transitions, 424 flow. Second operand has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 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) [2021-06-11 04:28:20,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:20,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:20,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:20,502 INFO L129 PetriNetUnfolder]: 46/111 cut-off events. [2021-06-11 04:28:20,502 INFO L130 PetriNetUnfolder]: For 500/506 co-relation queries the response was YES. [2021-06-11 04:28:20,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 111 events. 46/111 cut-off events. For 500/506 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 394 event pairs, 0 based on Foata normal form. 8/119 useless extension candidates. Maximal degree in co-relation 528. Up to 61 conditions per place. [2021-06-11 04:28:20,503 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 29 selfloop transitions, 21 changer transitions 0/57 dead transitions. [2021-06-11 04:28:20,503 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 57 transitions, 572 flow [2021-06-11 04:28:20,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 04:28:20,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 04:28:20,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 557 transitions. [2021-06-11 04:28:20,505 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7104591836734694 [2021-06-11 04:28:20,505 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 557 transitions. [2021-06-11 04:28:20,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 557 transitions. [2021-06-11 04:28:20,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:20,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 557 transitions. [2021-06-11 04:28:20,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 79.57142857142857) internal successors, (557), 7 states have internal predecessors, (557), 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) [2021-06-11 04:28:20,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 112.0) internal successors, (896), 8 states have internal predecessors, (896), 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) [2021-06-11 04:28:20,508 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 112.0) internal successors, (896), 8 states have internal predecessors, (896), 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) [2021-06-11 04:28:20,508 INFO L185 Difference]: Start difference. First operand has 51 places, 51 transitions, 424 flow. Second operand 7 states and 557 transitions. [2021-06-11 04:28:20,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 57 transitions, 572 flow [2021-06-11 04:28:20,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 57 transitions, 556 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 04:28:20,511 INFO L241 Difference]: Finished difference. Result has 55 places, 52 transitions, 479 flow [2021-06-11 04:28:20,511 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=479, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2021-06-11 04:28:20,511 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 37 predicate places. [2021-06-11 04:28:20,511 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:20,511 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 52 transitions, 479 flow [2021-06-11 04:28:20,511 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 52 transitions, 479 flow [2021-06-11 04:28:20,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 52 transitions, 479 flow [2021-06-11 04:28:20,520 INFO L129 PetriNetUnfolder]: 46/109 cut-off events. [2021-06-11 04:28:20,520 INFO L130 PetriNetUnfolder]: For 524/524 co-relation queries the response was YES. [2021-06-11 04:28:20,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 109 events. 46/109 cut-off events. For 524/524 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 376 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 481. Up to 49 conditions per place. [2021-06-11 04:28:20,521 INFO L151 LiptonReduction]: Number of co-enabled transitions 198 [2021-06-11 04:28:20,525 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:20,525 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:20,525 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 04:28:20,526 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 479 flow [2021-06-11 04:28:20,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 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) [2021-06-11 04:28:20,527 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:20,527 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:20,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:20,743 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:20,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:20,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1776833593, now seen corresponding path program 5 times [2021-06-11 04:28:20,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:20,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316008083] [2021-06-11 04:28:20,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:20,767 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:20,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,780 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:20,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:20,784 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-06-11 04:28:20,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:20,790 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:20,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:20,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316008083] [2021-06-11 04:28:20,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901964090] [2021-06-11 04:28:20,797 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:20,864 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 04:28:20,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:20,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-11 04:28:20,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:20,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:20,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:20,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:20,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:20,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:20,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:20,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:20,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:20,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:20,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:20,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:20,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:20,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:20,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:20,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:20,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:20,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:20,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:20,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:20,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:20,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:20,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 04:28:20,922 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-06-11 04:28:20,923 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:20,925 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:20,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:20,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:20,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:20,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-06-11 04:28:20,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798724533] [2021-06-11 04:28:20,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 04:28:20,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:20,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 04:28:20,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-11 04:28:20,930 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:20,931 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 479 flow. Second operand has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 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) [2021-06-11 04:28:20,931 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:20,931 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:20,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:20,987 INFO L129 PetriNetUnfolder]: 50/121 cut-off events. [2021-06-11 04:28:20,988 INFO L130 PetriNetUnfolder]: For 640/646 co-relation queries the response was YES. [2021-06-11 04:28:20,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 121 events. 50/121 cut-off events. For 640/646 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 449 event pairs, 0 based on Foata normal form. 8/129 useless extension candidates. Maximal degree in co-relation 614. Up to 64 conditions per place. [2021-06-11 04:28:20,989 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 29 selfloop transitions, 29 changer transitions 0/65 dead transitions. [2021-06-11 04:28:20,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 65 transitions, 733 flow [2021-06-11 04:28:20,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 04:28:20,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 04:28:20,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 717 transitions. [2021-06-11 04:28:20,990 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7113095238095238 [2021-06-11 04:28:20,990 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 717 transitions. [2021-06-11 04:28:20,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 717 transitions. [2021-06-11 04:28:20,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:20,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 717 transitions. [2021-06-11 04:28:20,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 79.66666666666667) internal successors, (717), 9 states have internal predecessors, (717), 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) [2021-06-11 04:28:20,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 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) [2021-06-11 04:28:20,993 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 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) [2021-06-11 04:28:20,993 INFO L185 Difference]: Start difference. First operand has 55 places, 52 transitions, 479 flow. Second operand 9 states and 717 transitions. [2021-06-11 04:28:20,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 65 transitions, 733 flow [2021-06-11 04:28:20,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 65 transitions, 681 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-06-11 04:28:20,996 INFO L241 Difference]: Finished difference. Result has 60 places, 60 transitions, 623 flow [2021-06-11 04:28:20,996 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=623, PETRI_PLACES=60, PETRI_TRANSITIONS=60} [2021-06-11 04:28:20,996 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 42 predicate places. [2021-06-11 04:28:20,996 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:20,997 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 60 transitions, 623 flow [2021-06-11 04:28:20,997 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 60 transitions, 623 flow [2021-06-11 04:28:20,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions, 623 flow [2021-06-11 04:28:21,003 INFO L129 PetriNetUnfolder]: 50/119 cut-off events. [2021-06-11 04:28:21,003 INFO L130 PetriNetUnfolder]: For 641/641 co-relation queries the response was YES. [2021-06-11 04:28:21,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 119 events. 50/119 cut-off events. For 641/641 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 433 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 579. Up to 56 conditions per place. [2021-06-11 04:28:21,005 INFO L151 LiptonReduction]: Number of co-enabled transitions 222 [2021-06-11 04:28:21,009 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:21,009 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:21,009 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-06-11 04:28:21,009 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 60 transitions, 623 flow [2021-06-11 04:28:21,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 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) [2021-06-11 04:28:21,010 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:21,010 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:21,224 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:21,225 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:21,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:21,225 INFO L82 PathProgramCache]: Analyzing trace with hash -539442365, now seen corresponding path program 1 times [2021-06-11 04:28:21,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:21,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760334332] [2021-06-11 04:28:21,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:21,243 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:21,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,247 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-06-11 04:28:21,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:21,252 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-06-11 04:28:21,252 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-06-11 04:28:21,263 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:21,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:21,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760334332] [2021-06-11 04:28:21,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 04:28:21,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 04:28:21,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655008439] [2021-06-11 04:28:21,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 04:28:21,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:21,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 04:28:21,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 04:28:21,269 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:21,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 60 transitions, 623 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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) [2021-06-11 04:28:21,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:21,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:21,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:21,311 INFO L129 PetriNetUnfolder]: 51/123 cut-off events. [2021-06-11 04:28:21,311 INFO L130 PetriNetUnfolder]: For 742/748 co-relation queries the response was YES. [2021-06-11 04:28:21,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 123 events. 51/123 cut-off events. For 742/748 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 464 event pairs, 0 based on Foata normal form. 7/130 useless extension candidates. Maximal degree in co-relation 684. Up to 71 conditions per place. [2021-06-11 04:28:21,312 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 37 selfloop transitions, 21 changer transitions 0/65 dead transitions. [2021-06-11 04:28:21,312 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 65 transitions, 785 flow [2021-06-11 04:28:21,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 04:28:21,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 04:28:21,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 557 transitions. [2021-06-11 04:28:21,313 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7104591836734694 [2021-06-11 04:28:21,313 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 557 transitions. [2021-06-11 04:28:21,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 557 transitions. [2021-06-11 04:28:21,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:21,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 557 transitions. [2021-06-11 04:28:21,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 79.57142857142857) internal successors, (557), 7 states have internal predecessors, (557), 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) [2021-06-11 04:28:21,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 112.0) internal successors, (896), 8 states have internal predecessors, (896), 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) [2021-06-11 04:28:21,316 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 112.0) internal successors, (896), 8 states have internal predecessors, (896), 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) [2021-06-11 04:28:21,316 INFO L185 Difference]: Start difference. First operand has 60 places, 60 transitions, 623 flow. Second operand 7 states and 557 transitions. [2021-06-11 04:28:21,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 65 transitions, 785 flow [2021-06-11 04:28:21,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 65 transitions, 710 flow, removed 29 selfloop flow, removed 4 redundant places. [2021-06-11 04:28:21,320 INFO L241 Difference]: Finished difference. Result has 63 places, 61 transitions, 621 flow [2021-06-11 04:28:21,320 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=621, PETRI_PLACES=63, PETRI_TRANSITIONS=61} [2021-06-11 04:28:21,320 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 45 predicate places. [2021-06-11 04:28:21,320 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:21,320 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 61 transitions, 621 flow [2021-06-11 04:28:21,320 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 61 transitions, 621 flow [2021-06-11 04:28:21,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 61 transitions, 621 flow [2021-06-11 04:28:21,328 INFO L129 PetriNetUnfolder]: 51/121 cut-off events. [2021-06-11 04:28:21,328 INFO L130 PetriNetUnfolder]: For 808/808 co-relation queries the response was YES. [2021-06-11 04:28:21,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 121 events. 51/121 cut-off events. For 808/808 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 443 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 593. Up to 49 conditions per place. [2021-06-11 04:28:21,329 INFO L151 LiptonReduction]: Number of co-enabled transitions 224 [2021-06-11 04:28:21,333 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:21,333 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:21,333 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-06-11 04:28:21,334 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 61 transitions, 621 flow [2021-06-11 04:28:21,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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) [2021-06-11 04:28:21,334 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:21,334 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:21,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-11 04:28:21,334 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:21,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:21,334 INFO L82 PathProgramCache]: Analyzing trace with hash -539104775, now seen corresponding path program 2 times [2021-06-11 04:28:21,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:21,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177023763] [2021-06-11 04:28:21,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:21,365 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:21,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,369 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-06-11 04:28:21,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:21,373 INFO L142 QuantifierPusher]: treesize reduction 13, result has 35.0 percent of original size [2021-06-11 04:28:21,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,379 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:21,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:21,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177023763] [2021-06-11 04:28:21,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 04:28:21,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 04:28:21,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112246803] [2021-06-11 04:28:21,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 04:28:21,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:21,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 04:28:21,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 04:28:21,385 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:21,385 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 61 transitions, 621 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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) [2021-06-11 04:28:21,385 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:21,386 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:21,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:21,443 INFO L129 PetriNetUnfolder]: 58/140 cut-off events. [2021-06-11 04:28:21,443 INFO L130 PetriNetUnfolder]: For 1045/1051 co-relation queries the response was YES. [2021-06-11 04:28:21,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 817 conditions, 140 events. 58/140 cut-off events. For 1045/1051 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 572 event pairs, 0 based on Foata normal form. 8/148 useless extension candidates. Maximal degree in co-relation 786. Up to 70 conditions per place. [2021-06-11 04:28:21,444 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 24 selfloop transitions, 42 changer transitions 0/73 dead transitions. [2021-06-11 04:28:21,444 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 73 transitions, 906 flow [2021-06-11 04:28:21,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 04:28:21,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 04:28:21,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 717 transitions. [2021-06-11 04:28:21,446 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7113095238095238 [2021-06-11 04:28:21,446 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 717 transitions. [2021-06-11 04:28:21,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 717 transitions. [2021-06-11 04:28:21,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:21,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 717 transitions. [2021-06-11 04:28:21,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 79.66666666666667) internal successors, (717), 9 states have internal predecessors, (717), 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) [2021-06-11 04:28:21,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 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) [2021-06-11 04:28:21,449 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 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) [2021-06-11 04:28:21,449 INFO L185 Difference]: Start difference. First operand has 63 places, 61 transitions, 621 flow. Second operand 9 states and 717 transitions. [2021-06-11 04:28:21,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 73 transitions, 906 flow [2021-06-11 04:28:21,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 73 transitions, 867 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-06-11 04:28:21,453 INFO L241 Difference]: Finished difference. Result has 68 places, 70 transitions, 853 flow [2021-06-11 04:28:21,453 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=853, PETRI_PLACES=68, PETRI_TRANSITIONS=70} [2021-06-11 04:28:21,454 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 50 predicate places. [2021-06-11 04:28:21,454 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:21,454 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 70 transitions, 853 flow [2021-06-11 04:28:21,454 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 70 transitions, 853 flow [2021-06-11 04:28:21,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 70 transitions, 853 flow [2021-06-11 04:28:21,462 INFO L129 PetriNetUnfolder]: 58/139 cut-off events. [2021-06-11 04:28:21,462 INFO L130 PetriNetUnfolder]: For 1208/1208 co-relation queries the response was YES. [2021-06-11 04:28:21,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 819 conditions, 139 events. 58/139 cut-off events. For 1208/1208 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 563 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 788. Up to 60 conditions per place. [2021-06-11 04:28:21,464 INFO L151 LiptonReduction]: Number of co-enabled transitions 244 [2021-06-11 04:28:21,469 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:21,469 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:21,469 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-06-11 04:28:21,470 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 70 transitions, 853 flow [2021-06-11 04:28:21,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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) [2021-06-11 04:28:21,470 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:21,470 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:21,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-11 04:28:21,470 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:21,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:21,470 INFO L82 PathProgramCache]: Analyzing trace with hash 752515065, now seen corresponding path program 3 times [2021-06-11 04:28:21,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:21,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508330739] [2021-06-11 04:28:21,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:21,498 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:21,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,502 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:21,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:21,507 INFO L142 QuantifierPusher]: treesize reduction 13, result has 35.0 percent of original size [2021-06-11 04:28:21,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,512 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:21,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:21,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508330739] [2021-06-11 04:28:21,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 04:28:21,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 04:28:21,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283897237] [2021-06-11 04:28:21,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 04:28:21,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:21,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 04:28:21,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 04:28:21,518 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:21,519 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 70 transitions, 853 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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) [2021-06-11 04:28:21,519 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:21,519 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:21,519 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:21,590 INFO L129 PetriNetUnfolder]: 64/156 cut-off events. [2021-06-11 04:28:21,590 INFO L130 PetriNetUnfolder]: For 1469/1475 co-relation queries the response was YES. [2021-06-11 04:28:21,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1041 conditions, 156 events. 64/156 cut-off events. For 1469/1475 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 677 event pairs, 0 based on Foata normal form. 8/164 useless extension candidates. Maximal degree in co-relation 1008. Up to 78 conditions per place. [2021-06-11 04:28:21,591 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 30 selfloop transitions, 45 changer transitions 0/82 dead transitions. [2021-06-11 04:28:21,591 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 82 transitions, 1183 flow [2021-06-11 04:28:21,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 04:28:21,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 04:28:21,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 717 transitions. [2021-06-11 04:28:21,593 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7113095238095238 [2021-06-11 04:28:21,593 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 717 transitions. [2021-06-11 04:28:21,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 717 transitions. [2021-06-11 04:28:21,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:21,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 717 transitions. [2021-06-11 04:28:21,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 79.66666666666667) internal successors, (717), 9 states have internal predecessors, (717), 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) [2021-06-11 04:28:21,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 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) [2021-06-11 04:28:21,596 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 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) [2021-06-11 04:28:21,596 INFO L185 Difference]: Start difference. First operand has 68 places, 70 transitions, 853 flow. Second operand 9 states and 717 transitions. [2021-06-11 04:28:21,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 82 transitions, 1183 flow [2021-06-11 04:28:21,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 82 transitions, 1128 flow, removed 16 selfloop flow, removed 5 redundant places. [2021-06-11 04:28:21,602 INFO L241 Difference]: Finished difference. Result has 74 places, 78 transitions, 1087 flow [2021-06-11 04:28:21,602 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1087, PETRI_PLACES=74, PETRI_TRANSITIONS=78} [2021-06-11 04:28:21,602 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 56 predicate places. [2021-06-11 04:28:21,603 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:21,603 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 78 transitions, 1087 flow [2021-06-11 04:28:21,603 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 78 transitions, 1087 flow [2021-06-11 04:28:21,603 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 78 transitions, 1087 flow [2021-06-11 04:28:21,613 INFO L129 PetriNetUnfolder]: 64/155 cut-off events. [2021-06-11 04:28:21,613 INFO L130 PetriNetUnfolder]: For 1629/1629 co-relation queries the response was YES. [2021-06-11 04:28:21,614 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1034 conditions, 155 events. 64/155 cut-off events. For 1629/1629 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 660 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 1000. Up to 69 conditions per place. [2021-06-11 04:28:21,615 INFO L151 LiptonReduction]: Number of co-enabled transitions 262 [2021-06-11 04:28:21,621 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:21,621 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:21,621 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-06-11 04:28:21,622 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 78 transitions, 1087 flow [2021-06-11 04:28:21,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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) [2021-06-11 04:28:21,622 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:21,622 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:21,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-11 04:28:21,622 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:21,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:21,623 INFO L82 PathProgramCache]: Analyzing trace with hash 427675644, now seen corresponding path program 6 times [2021-06-11 04:28:21,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:21,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857328226] [2021-06-11 04:28:21,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:21,639 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:21,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,643 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 04:28:21,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:21,650 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-06-11 04:28:21,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:21,656 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-06-11 04:28:21,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:21,663 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:21,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:21,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857328226] [2021-06-11 04:28:21,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542963360] [2021-06-11 04:28:21,670 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:21,719 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-11 04:28:21,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:21,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-11 04:28:21,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:21,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:21,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:21,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:21,737 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-06-11 04:28:21,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:21,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:21,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:21,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:21,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:21,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:21,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:21,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:21,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:21,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:21,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:21,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:21,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:21,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:21,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:21,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:21,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:21,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:21,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:21,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:21,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:21,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:21,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:21,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:21,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:21,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:21,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:21,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:21,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:21,779 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:21,779 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:21,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:21,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:21,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:21,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-06-11 04:28:21,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436465702] [2021-06-11 04:28:21,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 04:28:21,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:21,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 04:28:21,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-06-11 04:28:21,791 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:21,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 78 transitions, 1087 flow. Second operand has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 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) [2021-06-11 04:28:21,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:21,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:21,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:21,837 INFO L129 PetriNetUnfolder]: 66/161 cut-off events. [2021-06-11 04:28:21,837 INFO L130 PetriNetUnfolder]: For 1840/1846 co-relation queries the response was YES. [2021-06-11 04:28:21,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1198 conditions, 161 events. 66/161 cut-off events. For 1840/1846 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 701 event pairs, 0 based on Foata normal form. 8/169 useless extension candidates. Maximal degree in co-relation 1162. Up to 101 conditions per place. [2021-06-11 04:28:21,839 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 61 selfloop transitions, 18 changer transitions 0/86 dead transitions. [2021-06-11 04:28:21,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 86 transitions, 1356 flow [2021-06-11 04:28:21,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 04:28:21,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 04:28:21,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 556 transitions. [2021-06-11 04:28:21,840 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7091836734693877 [2021-06-11 04:28:21,840 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 556 transitions. [2021-06-11 04:28:21,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 556 transitions. [2021-06-11 04:28:21,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:21,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 556 transitions. [2021-06-11 04:28:21,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 79.42857142857143) internal successors, (556), 7 states have internal predecessors, (556), 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) [2021-06-11 04:28:21,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 112.0) internal successors, (896), 8 states have internal predecessors, (896), 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) [2021-06-11 04:28:21,842 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 112.0) internal successors, (896), 8 states have internal predecessors, (896), 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) [2021-06-11 04:28:21,842 INFO L185 Difference]: Start difference. First operand has 74 places, 78 transitions, 1087 flow. Second operand 7 states and 556 transitions. [2021-06-11 04:28:21,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 86 transitions, 1356 flow [2021-06-11 04:28:21,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 86 transitions, 1277 flow, removed 31 selfloop flow, removed 4 redundant places. [2021-06-11 04:28:21,849 INFO L241 Difference]: Finished difference. Result has 78 places, 80 transitions, 1111 flow [2021-06-11 04:28:21,849 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=1024, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1111, PETRI_PLACES=78, PETRI_TRANSITIONS=80} [2021-06-11 04:28:21,850 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 60 predicate places. [2021-06-11 04:28:21,850 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:21,850 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 80 transitions, 1111 flow [2021-06-11 04:28:21,850 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 80 transitions, 1111 flow [2021-06-11 04:28:21,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 80 transitions, 1111 flow [2021-06-11 04:28:21,860 INFO L129 PetriNetUnfolder]: 66/160 cut-off events. [2021-06-11 04:28:21,860 INFO L130 PetriNetUnfolder]: For 1630/1630 co-relation queries the response was YES. [2021-06-11 04:28:21,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1046 conditions, 160 events. 66/160 cut-off events. For 1630/1630 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 698 event pairs, 0 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 1009. Up to 73 conditions per place. [2021-06-11 04:28:21,862 INFO L151 LiptonReduction]: Number of co-enabled transitions 268 [2021-06-11 04:28:21,868 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:21,868 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:21,868 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-06-11 04:28:21,868 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 80 transitions, 1111 flow [2021-06-11 04:28:21,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 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) [2021-06-11 04:28:21,869 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:21,869 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:22,084 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-06-11 04:28:22,085 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:22,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:22,085 INFO L82 PathProgramCache]: Analyzing trace with hash 752754354, now seen corresponding path program 7 times [2021-06-11 04:28:22,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:22,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333584304] [2021-06-11 04:28:22,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:22,098 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:22,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,101 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:22,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:22,106 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-06-11 04:28:22,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:22,111 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-06-11 04:28:22,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:22,120 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:22,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:22,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333584304] [2021-06-11 04:28:22,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442833296] [2021-06-11 04:28:22,125 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:22,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-11 04:28:22,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:22,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:22,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:22,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:22,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:22,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:22,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:22,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:22,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:22,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:22,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:22,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:22,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:22,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:22,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:22,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:22,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:22,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:22,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:22,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:22,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:22,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:22,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:22,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:22,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:22,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:22,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:22,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:22,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 04:28:22,237 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-06-11 04:28:22,238 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:22,238 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:22,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:22,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:22,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:22,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-06-11 04:28:22,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915043885] [2021-06-11 04:28:22,246 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 04:28:22,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:22,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 04:28:22,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-06-11 04:28:22,247 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:22,248 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 80 transitions, 1111 flow. Second operand has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 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) [2021-06-11 04:28:22,248 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:22,248 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:22,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:22,361 INFO L129 PetriNetUnfolder]: 74/182 cut-off events. [2021-06-11 04:28:22,361 INFO L130 PetriNetUnfolder]: For 2020/2026 co-relation queries the response was YES. [2021-06-11 04:28:22,362 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 182 events. 74/182 cut-off events. For 2020/2026 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 810 event pairs, 0 based on Foata normal form. 10/192 useless extension candidates. Maximal degree in co-relation 1283. Up to 91 conditions per place. [2021-06-11 04:28:22,363 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 47 selfloop transitions, 46 changer transitions 0/100 dead transitions. [2021-06-11 04:28:22,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 100 transitions, 1637 flow [2021-06-11 04:28:22,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-11 04:28:22,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-11 04:28:22,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1116 transitions. [2021-06-11 04:28:22,365 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7117346938775511 [2021-06-11 04:28:22,365 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1116 transitions. [2021-06-11 04:28:22,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1116 transitions. [2021-06-11 04:28:22,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:22,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1116 transitions. [2021-06-11 04:28:22,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 79.71428571428571) internal successors, (1116), 14 states have internal predecessors, (1116), 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) [2021-06-11 04:28:22,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 112.0) internal successors, (1680), 15 states have internal predecessors, (1680), 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) [2021-06-11 04:28:22,369 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 112.0) internal successors, (1680), 15 states have internal predecessors, (1680), 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) [2021-06-11 04:28:22,369 INFO L185 Difference]: Start difference. First operand has 78 places, 80 transitions, 1111 flow. Second operand 14 states and 1116 transitions. [2021-06-11 04:28:22,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 100 transitions, 1637 flow [2021-06-11 04:28:22,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 100 transitions, 1563 flow, removed 26 selfloop flow, removed 4 redundant places. [2021-06-11 04:28:22,377 INFO L241 Difference]: Finished difference. Result has 91 places, 95 transitions, 1475 flow [2021-06-11 04:28:22,377 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1475, PETRI_PLACES=91, PETRI_TRANSITIONS=95} [2021-06-11 04:28:22,377 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 73 predicate places. [2021-06-11 04:28:22,377 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:22,377 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 95 transitions, 1475 flow [2021-06-11 04:28:22,377 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 95 transitions, 1475 flow [2021-06-11 04:28:22,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 95 transitions, 1475 flow [2021-06-11 04:28:22,389 INFO L129 PetriNetUnfolder]: 74/181 cut-off events. [2021-06-11 04:28:22,389 INFO L130 PetriNetUnfolder]: For 1835/1835 co-relation queries the response was YES. [2021-06-11 04:28:22,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1205 conditions, 181 events. 74/181 cut-off events. For 1835/1835 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 821 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 1164. Up to 87 conditions per place. [2021-06-11 04:28:22,390 INFO L151 LiptonReduction]: Number of co-enabled transitions 310 [2021-06-11 04:28:22,400 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:22,400 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:22,400 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-06-11 04:28:22,401 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 95 transitions, 1475 flow [2021-06-11 04:28:22,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 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) [2021-06-11 04:28:22,401 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:22,401 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:22,618 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:22,618 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:22,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:22,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1629957934, now seen corresponding path program 4 times [2021-06-11 04:28:22,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:22,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679855163] [2021-06-11 04:28:22,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:22,632 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:22,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,640 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-06-11 04:28:22,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:22,644 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-06-11 04:28:22,645 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-06-11 04:28:22,655 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-06-11 04:28:22,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:22,661 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:22,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:22,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679855163] [2021-06-11 04:28:22,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325788492] [2021-06-11 04:28:22,666 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:22,714 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 04:28:22,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:22,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-11 04:28:22,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:22,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:22,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:22,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:22,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:22,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:22,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:22,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:22,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:22,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:22,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:22,745 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 04:28:22,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 04:28:22,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 04:28:22,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:22,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:22,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:22,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:22,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:22,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:22,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:22,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:22,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:22,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:22,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:22,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:22,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:22,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:22,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:22,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:22,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:22,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:22,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-06-11 04:28:22,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977486801] [2021-06-11 04:28:22,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-11 04:28:22,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:22,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-11 04:28:22,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-11 04:28:22,781 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:22,782 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 95 transitions, 1475 flow. Second operand has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 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) [2021-06-11 04:28:22,782 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:22,782 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:22,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:22,856 INFO L129 PetriNetUnfolder]: 75/185 cut-off events. [2021-06-11 04:28:22,856 INFO L130 PetriNetUnfolder]: For 1938/1944 co-relation queries the response was YES. [2021-06-11 04:28:22,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1361 conditions, 185 events. 75/185 cut-off events. For 1938/1944 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 833 event pairs, 0 based on Foata normal form. 7/192 useless extension candidates. Maximal degree in co-relation 1318. Up to 106 conditions per place. [2021-06-11 04:28:22,858 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 67 selfloop transitions, 30 changer transitions 0/104 dead transitions. [2021-06-11 04:28:22,858 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 104 transitions, 1780 flow [2021-06-11 04:28:22,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 04:28:22,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 04:28:22,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 794 transitions. [2021-06-11 04:28:22,859 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7089285714285715 [2021-06-11 04:28:22,860 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 794 transitions. [2021-06-11 04:28:22,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 794 transitions. [2021-06-11 04:28:22,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:22,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 794 transitions. [2021-06-11 04:28:22,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.4) internal successors, (794), 10 states have internal predecessors, (794), 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) [2021-06-11 04:28:22,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 states have internal predecessors, (1232), 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) [2021-06-11 04:28:22,862 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 states have internal predecessors, (1232), 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) [2021-06-11 04:28:22,862 INFO L185 Difference]: Start difference. First operand has 91 places, 95 transitions, 1475 flow. Second operand 10 states and 794 transitions. [2021-06-11 04:28:22,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 104 transitions, 1780 flow [2021-06-11 04:28:22,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 104 transitions, 1523 flow, removed 103 selfloop flow, removed 8 redundant places. [2021-06-11 04:28:22,871 INFO L241 Difference]: Finished difference. Result has 95 places, 99 transitions, 1380 flow [2021-06-11 04:28:22,871 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=1227, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1380, PETRI_PLACES=95, PETRI_TRANSITIONS=99} [2021-06-11 04:28:22,871 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 77 predicate places. [2021-06-11 04:28:22,871 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:22,871 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 99 transitions, 1380 flow [2021-06-11 04:28:22,871 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 99 transitions, 1380 flow [2021-06-11 04:28:22,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 99 transitions, 1380 flow [2021-06-11 04:28:22,883 INFO L129 PetriNetUnfolder]: 75/185 cut-off events. [2021-06-11 04:28:22,883 INFO L130 PetriNetUnfolder]: For 1757/1757 co-relation queries the response was YES. [2021-06-11 04:28:22,883 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1141 conditions, 185 events. 75/185 cut-off events. For 1757/1757 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 859 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 1098. Up to 75 conditions per place. [2021-06-11 04:28:22,884 INFO L151 LiptonReduction]: Number of co-enabled transitions 322 [2021-06-11 04:28:22,894 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:22,894 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:22,894 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-06-11 04:28:22,894 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 99 transitions, 1380 flow [2021-06-11 04:28:22,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 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) [2021-06-11 04:28:22,895 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:22,895 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:23,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-11 04:28:23,105 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:23,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:23,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1747697717, now seen corresponding path program 5 times [2021-06-11 04:28:23,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:23,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669049506] [2021-06-11 04:28:23,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:23,118 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:23,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,123 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:23,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:23,128 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-06-11 04:28:23,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,133 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-11 04:28:23,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:23,143 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:23,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:23,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669049506] [2021-06-11 04:28:23,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263120540] [2021-06-11 04:28:23,162 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:23,212 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 04:28:23,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:23,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-11 04:28:23,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:23,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:23,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:23,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:23,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:23,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:23,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:23,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:23,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:23,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:23,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:23,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:23,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:23,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:23,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:23,265 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-06-11 04:28:23,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 04:28:23,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 04:28:23,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:23,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:23,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:23,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:23,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:23,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:23,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:23,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:23,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:23,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:23,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,294 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:23,295 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:23,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:23,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:23,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:23,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-06-11 04:28:23,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981208524] [2021-06-11 04:28:23,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-11 04:28:23,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:23,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-11 04:28:23,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-06-11 04:28:23,301 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:23,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 99 transitions, 1380 flow. Second operand has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 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) [2021-06-11 04:28:23,301 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:23,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:23,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:23,379 INFO L129 PetriNetUnfolder]: 77/190 cut-off events. [2021-06-11 04:28:23,379 INFO L130 PetriNetUnfolder]: For 2098/2104 co-relation queries the response was YES. [2021-06-11 04:28:23,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1323 conditions, 190 events. 77/190 cut-off events. For 2098/2104 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 862 event pairs, 0 based on Foata normal form. 7/197 useless extension candidates. Maximal degree in co-relation 1278. Up to 107 conditions per place. [2021-06-11 04:28:23,381 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 65 selfloop transitions, 34 changer transitions 0/106 dead transitions. [2021-06-11 04:28:23,381 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 106 transitions, 1677 flow [2021-06-11 04:28:23,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 04:28:23,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 04:28:23,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 716 transitions. [2021-06-11 04:28:23,383 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7103174603174603 [2021-06-11 04:28:23,383 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 716 transitions. [2021-06-11 04:28:23,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 716 transitions. [2021-06-11 04:28:23,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:23,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 716 transitions. [2021-06-11 04:28:23,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 79.55555555555556) internal successors, (716), 9 states have internal predecessors, (716), 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) [2021-06-11 04:28:23,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 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) [2021-06-11 04:28:23,386 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 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) [2021-06-11 04:28:23,386 INFO L185 Difference]: Start difference. First operand has 95 places, 99 transitions, 1380 flow. Second operand 9 states and 716 transitions. [2021-06-11 04:28:23,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 106 transitions, 1677 flow [2021-06-11 04:28:23,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 106 transitions, 1635 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-06-11 04:28:23,401 INFO L241 Difference]: Finished difference. Result has 99 places, 101 transitions, 1486 flow [2021-06-11 04:28:23,401 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=1339, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1486, PETRI_PLACES=99, PETRI_TRANSITIONS=101} [2021-06-11 04:28:23,402 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 81 predicate places. [2021-06-11 04:28:23,402 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:23,402 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 101 transitions, 1486 flow [2021-06-11 04:28:23,402 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 101 transitions, 1486 flow [2021-06-11 04:28:23,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 101 transitions, 1486 flow [2021-06-11 04:28:23,418 INFO L129 PetriNetUnfolder]: 77/190 cut-off events. [2021-06-11 04:28:23,418 INFO L130 PetriNetUnfolder]: For 2160/2160 co-relation queries the response was YES. [2021-06-11 04:28:23,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1223 conditions, 190 events. 77/190 cut-off events. For 2160/2160 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 914 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 1179. Up to 77 conditions per place. [2021-06-11 04:28:23,421 INFO L151 LiptonReduction]: Number of co-enabled transitions 326 [2021-06-11 04:28:23,436 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:23,436 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:23,436 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-06-11 04:28:23,438 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 101 transitions, 1486 flow [2021-06-11 04:28:23,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 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) [2021-06-11 04:28:23,438 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:23,438 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:23,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-11 04:28:23,656 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:23,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:23,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1748035307, now seen corresponding path program 6 times [2021-06-11 04:28:23,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:23,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495151121] [2021-06-11 04:28:23,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:23,675 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:23,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,678 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:23,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:23,683 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-06-11 04:28:23,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,689 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-11 04:28:23,689 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-06-11 04:28:23,698 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:23,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:23,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495151121] [2021-06-11 04:28:23,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002269540] [2021-06-11 04:28:23,704 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:23,748 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-11 04:28:23,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:23,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-11 04:28:23,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:23,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:23,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:23,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:23,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:23,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:23,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:23,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:23,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:23,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:23,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:23,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:23,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:23,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:23,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:23,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:23,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:23,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:23,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:23,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:23,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:23,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,797 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-06-11 04:28:23,798 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-06-11 04:28:23,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:23,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 04:28:23,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:23,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 04:28:23,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 04:28:23,811 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-06-11 04:28:23,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:23,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,813 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-11 04:28:23,814 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:23,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,815 INFO L147 QuantifierPusher]: treesize reduction -7, result has 113.2 percent of original size 60 [2021-06-11 04:28:23,816 INFO L147 QuantifierPusher]: treesize reduction -7, result has 113.2 percent of original size 60 [2021-06-11 04:28:23,816 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-11 04:28:23,817 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:23,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:23,818 INFO L142 QuantifierPusher]: treesize reduction -7, result has 110.4 percent of original size [2021-06-11 04:28:23,831 INFO L147 QuantifierPusher]: treesize reduction 370, result has 57.9 percent of original size 508 [2021-06-11 04:28:23,834 INFO L147 QuantifierPusher]: treesize reduction 370, result has 57.9 percent of original size 508 [2021-06-11 04:28:23,836 INFO L142 QuantifierPusher]: treesize reduction 370, result has 57.9 percent of original size [2021-06-11 04:28:23,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 508 [2021-06-11 04:28:23,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:23,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:23,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-06-11 04:28:23,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699274446] [2021-06-11 04:28:23,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 04:28:23,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:23,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 04:28:23,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-06-11 04:28:23,892 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:23,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 101 transitions, 1486 flow. Second operand has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 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) [2021-06-11 04:28:23,893 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:23,893 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:23,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:24,077 INFO L129 PetriNetUnfolder]: 93/233 cut-off events. [2021-06-11 04:28:24,077 INFO L130 PetriNetUnfolder]: For 3556/3562 co-relation queries the response was YES. [2021-06-11 04:28:24,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1721 conditions, 233 events. 93/233 cut-off events. For 3556/3562 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1158 event pairs, 0 based on Foata normal form. 11/244 useless extension candidates. Maximal degree in co-relation 1675. Up to 107 conditions per place. [2021-06-11 04:28:24,080 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 26 selfloop transitions, 96 changer transitions 0/129 dead transitions. [2021-06-11 04:28:24,080 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 129 transitions, 2285 flow [2021-06-11 04:28:24,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-11 04:28:24,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-06-11 04:28:24,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1196 transitions. [2021-06-11 04:28:24,081 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7119047619047619 [2021-06-11 04:28:24,081 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1196 transitions. [2021-06-11 04:28:24,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1196 transitions. [2021-06-11 04:28:24,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:24,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1196 transitions. [2021-06-11 04:28:24,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 79.73333333333333) internal successors, (1196), 15 states have internal predecessors, (1196), 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) [2021-06-11 04:28:24,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 112.0) internal successors, (1792), 16 states have internal predecessors, (1792), 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) [2021-06-11 04:28:24,085 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 112.0) internal successors, (1792), 16 states have internal predecessors, (1792), 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) [2021-06-11 04:28:24,085 INFO L185 Difference]: Start difference. First operand has 99 places, 101 transitions, 1486 flow. Second operand 15 states and 1196 transitions. [2021-06-11 04:28:24,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 129 transitions, 2285 flow [2021-06-11 04:28:24,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 129 transitions, 2233 flow, removed 0 selfloop flow, removed 7 redundant places. [2021-06-11 04:28:24,096 INFO L241 Difference]: Finished difference. Result has 111 places, 126 transitions, 2266 flow [2021-06-11 04:28:24,096 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=1439, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2266, PETRI_PLACES=111, PETRI_TRANSITIONS=126} [2021-06-11 04:28:24,096 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 93 predicate places. [2021-06-11 04:28:24,096 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:24,096 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 126 transitions, 2266 flow [2021-06-11 04:28:24,097 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 126 transitions, 2266 flow [2021-06-11 04:28:24,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 126 transitions, 2266 flow [2021-06-11 04:28:24,112 INFO L129 PetriNetUnfolder]: 93/231 cut-off events. [2021-06-11 04:28:24,113 INFO L130 PetriNetUnfolder]: For 3576/3576 co-relation queries the response was YES. [2021-06-11 04:28:24,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1742 conditions, 231 events. 93/231 cut-off events. For 3576/3576 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1160 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 1693. Up to 107 conditions per place. [2021-06-11 04:28:24,115 INFO L151 LiptonReduction]: Number of co-enabled transitions 382 [2021-06-11 04:28:24,121 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:24,121 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:24,121 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-06-11 04:28:24,121 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 126 transitions, 2266 flow [2021-06-11 04:28:24,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 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) [2021-06-11 04:28:24,122 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:24,122 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:24,339 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-11 04:28:24,339 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:24,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:24,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1789213280, now seen corresponding path program 3 times [2021-06-11 04:28:24,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:24,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300322777] [2021-06-11 04:28:24,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:24,353 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-06-11 04:28:24,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:24,357 INFO L142 QuantifierPusher]: treesize reduction 6, result has 60.0 percent of original size [2021-06-11 04:28:24,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:24,361 INFO L142 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-06-11 04:28:24,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,366 INFO L142 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-06-11 04:28:24,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,372 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-06-11 04:28:24,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:24,382 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:24,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:24,388 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:24,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300322777] [2021-06-11 04:28:24,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480652959] [2021-06-11 04:28:24,388 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:24,433 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-11 04:28:24,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:24,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-11 04:28:24,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:24,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:24,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:24,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:24,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:24,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:24,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:24,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:24,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:24,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:24,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:24,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:24,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:24,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:24,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:24,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:24,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:24,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:24,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:24,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:24,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:24,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:24,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:24,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:24,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:24,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:24,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:24,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:24,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:24,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:24,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:24,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:24,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:24,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:24,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:24,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:24,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:24,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:24,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:24,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:24,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:24,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:24,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:24,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:24,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:24,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:24,515 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-06-11 04:28:24,515 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-11 04:28:24,516 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:24,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:24,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:24,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:24,542 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:24,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:24,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-06-11 04:28:24,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867538726] [2021-06-11 04:28:24,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-11 04:28:24,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:24,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-11 04:28:24,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-06-11 04:28:24,545 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:24,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 126 transitions, 2266 flow. Second operand has 14 states, 14 states have (on average 78.0) internal successors, (1092), 14 states have internal predecessors, (1092), 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) [2021-06-11 04:28:24,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:24,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:24,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:24,681 INFO L129 PetriNetUnfolder]: 108/274 cut-off events. [2021-06-11 04:28:24,681 INFO L130 PetriNetUnfolder]: For 4715/4721 co-relation queries the response was YES. [2021-06-11 04:28:24,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2213 conditions, 274 events. 108/274 cut-off events. For 4715/4721 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1446 event pairs, 0 based on Foata normal form. 9/283 useless extension candidates. Maximal degree in co-relation 2162. Up to 159 conditions per place. [2021-06-11 04:28:24,684 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 86 selfloop transitions, 55 changer transitions 0/148 dead transitions. [2021-06-11 04:28:24,684 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 148 transitions, 3016 flow [2021-06-11 04:28:24,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-11 04:28:24,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-06-11 04:28:24,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1195 transitions. [2021-06-11 04:28:24,686 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7113095238095238 [2021-06-11 04:28:24,686 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1195 transitions. [2021-06-11 04:28:24,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1195 transitions. [2021-06-11 04:28:24,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:24,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1195 transitions. [2021-06-11 04:28:24,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 79.66666666666667) internal successors, (1195), 15 states have internal predecessors, (1195), 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) [2021-06-11 04:28:24,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 112.0) internal successors, (1792), 16 states have internal predecessors, (1792), 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) [2021-06-11 04:28:24,689 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 112.0) internal successors, (1792), 16 states have internal predecessors, (1792), 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) [2021-06-11 04:28:24,689 INFO L185 Difference]: Start difference. First operand has 111 places, 126 transitions, 2266 flow. Second operand 15 states and 1195 transitions. [2021-06-11 04:28:24,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 148 transitions, 3016 flow [2021-06-11 04:28:24,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 148 transitions, 2689 flow, removed 149 selfloop flow, removed 6 redundant places. [2021-06-11 04:28:24,704 INFO L241 Difference]: Finished difference. Result has 122 places, 148 transitions, 2560 flow [2021-06-11 04:28:24,705 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=1983, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2560, PETRI_PLACES=122, PETRI_TRANSITIONS=148} [2021-06-11 04:28:24,705 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 104 predicate places. [2021-06-11 04:28:24,705 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:24,705 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 148 transitions, 2560 flow [2021-06-11 04:28:24,705 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 148 transitions, 2560 flow [2021-06-11 04:28:24,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 148 transitions, 2560 flow [2021-06-11 04:28:24,724 INFO L129 PetriNetUnfolder]: 108/271 cut-off events. [2021-06-11 04:28:24,724 INFO L130 PetriNetUnfolder]: For 4022/4022 co-relation queries the response was YES. [2021-06-11 04:28:24,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1915 conditions, 271 events. 108/271 cut-off events. For 4022/4022 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1412 event pairs, 0 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 1862. Up to 113 conditions per place. [2021-06-11 04:28:24,727 INFO L151 LiptonReduction]: Number of co-enabled transitions 456 [2021-06-11 04:28:24,735 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:24,735 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:24,735 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-06-11 04:28:24,735 INFO L480 AbstractCegarLoop]: Abstraction has has 122 places, 148 transitions, 2560 flow [2021-06-11 04:28:24,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 78.0) internal successors, (1092), 14 states have internal predecessors, (1092), 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) [2021-06-11 04:28:24,736 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:24,736 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:24,951 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:24,954 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:24,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:24,954 INFO L82 PathProgramCache]: Analyzing trace with hash 372804216, now seen corresponding path program 7 times [2021-06-11 04:28:24,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:24,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578274877] [2021-06-11 04:28:24,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:24,969 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:24,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:24,973 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 04:28:24,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:24,978 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-06-11 04:28:24,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:24,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:24,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:24,990 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:24,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:24,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:24,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578274877] [2021-06-11 04:28:24,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000991451] [2021-06-11 04:28:24,996 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:25,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-11 04:28:25,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:25,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:25,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:25,052 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-06-11 04:28:25,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:25,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:25,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:25,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:25,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:25,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:25,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:25,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:25,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:25,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:25,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:25,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:25,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:25,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:25,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:25,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:25,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:25,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:25,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:25,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:25,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:25,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:25,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:25,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:25,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:25,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:25,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:25,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:25,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:25,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:25,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:25,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:25,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:25,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:25,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-06-11 04:28:25,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830491037] [2021-06-11 04:28:25,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-11 04:28:25,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:25,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-11 04:28:25,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-06-11 04:28:25,094 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:25,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 148 transitions, 2560 flow. Second operand has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 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) [2021-06-11 04:28:25,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:25,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:25,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:25,175 INFO L129 PetriNetUnfolder]: 112/286 cut-off events. [2021-06-11 04:28:25,175 INFO L130 PetriNetUnfolder]: For 4153/4159 co-relation queries the response was YES. [2021-06-11 04:28:25,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2210 conditions, 286 events. 112/286 cut-off events. For 4153/4159 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1552 event pairs, 0 based on Foata normal form. 7/293 useless extension candidates. Maximal degree in co-relation 2155. Up to 179 conditions per place. [2021-06-11 04:28:25,178 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 130 selfloop transitions, 27 changer transitions 0/164 dead transitions. [2021-06-11 04:28:25,178 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 164 transitions, 3119 flow [2021-06-11 04:28:25,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-11 04:28:25,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-11 04:28:25,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 635 transitions. [2021-06-11 04:28:25,179 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7087053571428571 [2021-06-11 04:28:25,179 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 635 transitions. [2021-06-11 04:28:25,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 635 transitions. [2021-06-11 04:28:25,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:25,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 635 transitions. [2021-06-11 04:28:25,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 79.375) internal successors, (635), 8 states have internal predecessors, (635), 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) [2021-06-11 04:28:25,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 112.0) internal successors, (1008), 9 states have internal predecessors, (1008), 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) [2021-06-11 04:28:25,181 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 112.0) internal successors, (1008), 9 states have internal predecessors, (1008), 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) [2021-06-11 04:28:25,181 INFO L185 Difference]: Start difference. First operand has 122 places, 148 transitions, 2560 flow. Second operand 8 states and 635 transitions. [2021-06-11 04:28:25,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 164 transitions, 3119 flow [2021-06-11 04:28:25,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 164 transitions, 2904 flow, removed 85 selfloop flow, removed 8 redundant places. [2021-06-11 04:28:25,197 INFO L241 Difference]: Finished difference. Result has 123 places, 153 transitions, 2558 flow [2021-06-11 04:28:25,197 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=2352, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2558, PETRI_PLACES=123, PETRI_TRANSITIONS=153} [2021-06-11 04:28:25,197 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 105 predicate places. [2021-06-11 04:28:25,197 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:25,197 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 153 transitions, 2558 flow [2021-06-11 04:28:25,197 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 153 transitions, 2558 flow [2021-06-11 04:28:25,198 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 153 transitions, 2558 flow [2021-06-11 04:28:25,218 INFO L129 PetriNetUnfolder]: 112/282 cut-off events. [2021-06-11 04:28:25,218 INFO L130 PetriNetUnfolder]: For 3992/3992 co-relation queries the response was YES. [2021-06-11 04:28:25,220 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1950 conditions, 282 events. 112/282 cut-off events. For 3992/3992 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1492 event pairs, 0 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 1894. Up to 113 conditions per place. [2021-06-11 04:28:25,222 INFO L151 LiptonReduction]: Number of co-enabled transitions 466 [2021-06-11 04:28:25,229 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:25,229 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:25,229 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-06-11 04:28:25,229 INFO L480 AbstractCegarLoop]: Abstraction has has 123 places, 153 transitions, 2558 flow [2021-06-11 04:28:25,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 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) [2021-06-11 04:28:25,230 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:25,230 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:25,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-06-11 04:28:25,445 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:25,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:25,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1840013314, now seen corresponding path program 8 times [2021-06-11 04:28:25,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:25,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135371345] [2021-06-11 04:28:25,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:25,467 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:25,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,470 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:25,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:25,475 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-06-11 04:28:25,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:25,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:25,485 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:25,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:25,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135371345] [2021-06-11 04:28:25,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549519742] [2021-06-11 04:28:25,492 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:25,546 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 04:28:25,546 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:25,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-11 04:28:25,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:25,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:25,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:25,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:25,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:25,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:25,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:25,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:25,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:25,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:25,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:25,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:25,573 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-06-11 04:28:25,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:25,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:25,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:25,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:25,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:25,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:25,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:25,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:25,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:25,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:25,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:25,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:25,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:25,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:25,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:25,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:25,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:25,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:25,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:25,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:25,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:25,601 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:25,601 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:25,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:25,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:25,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:25,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-06-11 04:28:25,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511663103] [2021-06-11 04:28:25,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-11 04:28:25,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:25,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-11 04:28:25,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-11 04:28:25,607 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:25,608 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 153 transitions, 2558 flow. Second operand has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 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) [2021-06-11 04:28:25,608 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:25,608 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:25,608 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:25,699 INFO L129 PetriNetUnfolder]: 115/293 cut-off events. [2021-06-11 04:28:25,699 INFO L130 PetriNetUnfolder]: For 4269/4275 co-relation queries the response was YES. [2021-06-11 04:28:25,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2211 conditions, 293 events. 115/293 cut-off events. For 4269/4275 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1572 event pairs, 0 based on Foata normal form. 7/300 useless extension candidates. Maximal degree in co-relation 2153. Up to 172 conditions per place. [2021-06-11 04:28:25,702 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 120 selfloop transitions, 41 changer transitions 0/168 dead transitions. [2021-06-11 04:28:25,702 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 168 transitions, 3079 flow [2021-06-11 04:28:25,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 04:28:25,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 04:28:25,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 794 transitions. [2021-06-11 04:28:25,703 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7089285714285715 [2021-06-11 04:28:25,703 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 794 transitions. [2021-06-11 04:28:25,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 794 transitions. [2021-06-11 04:28:25,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:25,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 794 transitions. [2021-06-11 04:28:25,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.4) internal successors, (794), 10 states have internal predecessors, (794), 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) [2021-06-11 04:28:25,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 states have internal predecessors, (1232), 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) [2021-06-11 04:28:25,705 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 states have internal predecessors, (1232), 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) [2021-06-11 04:28:25,705 INFO L185 Difference]: Start difference. First operand has 123 places, 153 transitions, 2558 flow. Second operand 10 states and 794 transitions. [2021-06-11 04:28:25,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 168 transitions, 3079 flow [2021-06-11 04:28:25,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 168 transitions, 3050 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-06-11 04:28:25,725 INFO L241 Difference]: Finished difference. Result has 129 places, 157 transitions, 2731 flow [2021-06-11 04:28:25,725 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=2529, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2731, PETRI_PLACES=129, PETRI_TRANSITIONS=157} [2021-06-11 04:28:25,725 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 111 predicate places. [2021-06-11 04:28:25,725 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:25,726 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 157 transitions, 2731 flow [2021-06-11 04:28:25,726 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 157 transitions, 2731 flow [2021-06-11 04:28:25,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 157 transitions, 2731 flow [2021-06-11 04:28:25,758 INFO L129 PetriNetUnfolder]: 115/291 cut-off events. [2021-06-11 04:28:25,758 INFO L130 PetriNetUnfolder]: For 4392/4392 co-relation queries the response was YES. [2021-06-11 04:28:25,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2060 conditions, 291 events. 115/291 cut-off events. For 4392/4392 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1579 event pairs, 0 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 2002. Up to 117 conditions per place. [2021-06-11 04:28:25,761 INFO L151 LiptonReduction]: Number of co-enabled transitions 476 [2021-06-11 04:28:25,767 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:25,767 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:25,768 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-06-11 04:28:25,768 INFO L480 AbstractCegarLoop]: Abstraction has has 129 places, 157 transitions, 2731 flow [2021-06-11 04:28:25,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 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) [2021-06-11 04:28:25,768 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:25,768 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:25,983 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:25,984 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:25,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:25,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1853151424, now seen corresponding path program 9 times [2021-06-11 04:28:25,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:25,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833822700] [2021-06-11 04:28:25,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:25,996 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:25,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,000 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:26,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,004 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-06-11 04:28:26,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,010 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-11 04:28:26,010 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-06-11 04:28:26,019 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:26,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:26,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833822700] [2021-06-11 04:28:26,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049557849] [2021-06-11 04:28:26,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:26,069 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-11 04:28:26,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:26,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-11 04:28:26,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:26,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:26,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:26,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:26,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:26,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:26,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:26,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:26,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:26,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:26,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:26,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:26,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:26,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:26,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:26,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:26,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:26,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:26,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:26,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:26,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:26,129 INFO L142 QuantifierPusher]: treesize reduction 13, result has 50.0 percent of original size [2021-06-11 04:28:26,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:26,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:26,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-06-11 04:28:26,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568025554] [2021-06-11 04:28:26,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 04:28:26,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:26,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 04:28:26,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-11 04:28:26,138 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:26,138 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 157 transitions, 2731 flow. Second operand has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 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) [2021-06-11 04:28:26,138 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:26,138 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:26,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:26,344 INFO L129 PetriNetUnfolder]: 140/361 cut-off events. [2021-06-11 04:28:26,345 INFO L130 PetriNetUnfolder]: For 6885/6891 co-relation queries the response was YES. [2021-06-11 04:28:26,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2806 conditions, 361 events. 140/361 cut-off events. For 6885/6891 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2102 event pairs, 0 based on Foata normal form. 11/372 useless extension candidates. Maximal degree in co-relation 2746. Up to 160 conditions per place. [2021-06-11 04:28:26,348 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 71 selfloop transitions, 128 changer transitions 0/206 dead transitions. [2021-06-11 04:28:26,348 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 206 transitions, 4020 flow [2021-06-11 04:28:26,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-11 04:28:26,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-06-11 04:28:26,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1355 transitions. [2021-06-11 04:28:26,349 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7116596638655462 [2021-06-11 04:28:26,349 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1355 transitions. [2021-06-11 04:28:26,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1355 transitions. [2021-06-11 04:28:26,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:26,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1355 transitions. [2021-06-11 04:28:26,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 79.70588235294117) internal successors, (1355), 17 states have internal predecessors, (1355), 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) [2021-06-11 04:28:26,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 112.0) internal successors, (2016), 18 states have internal predecessors, (2016), 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) [2021-06-11 04:28:26,353 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 112.0) internal successors, (2016), 18 states have internal predecessors, (2016), 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) [2021-06-11 04:28:26,353 INFO L185 Difference]: Start difference. First operand has 129 places, 157 transitions, 2731 flow. Second operand 17 states and 1355 transitions. [2021-06-11 04:28:26,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 206 transitions, 4020 flow [2021-06-11 04:28:26,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 206 transitions, 3961 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-06-11 04:28:26,374 INFO L241 Difference]: Finished difference. Result has 144 places, 195 transitions, 3888 flow [2021-06-11 04:28:26,374 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=2680, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3888, PETRI_PLACES=144, PETRI_TRANSITIONS=195} [2021-06-11 04:28:26,374 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 126 predicate places. [2021-06-11 04:28:26,374 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:26,375 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 195 transitions, 3888 flow [2021-06-11 04:28:26,375 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 195 transitions, 3888 flow [2021-06-11 04:28:26,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 144 places, 195 transitions, 3888 flow [2021-06-11 04:28:26,403 INFO L129 PetriNetUnfolder]: 140/360 cut-off events. [2021-06-11 04:28:26,403 INFO L130 PetriNetUnfolder]: For 6121/6121 co-relation queries the response was YES. [2021-06-11 04:28:26,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2817 conditions, 360 events. 140/360 cut-off events. For 6121/6121 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2145 event pairs, 0 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 2754. Up to 160 conditions per place. [2021-06-11 04:28:26,408 INFO L151 LiptonReduction]: Number of co-enabled transitions 560 [2021-06-11 04:28:26,418 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:26,418 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:26,418 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-06-11 04:28:26,419 INFO L480 AbstractCegarLoop]: Abstraction has has 144 places, 195 transitions, 3888 flow [2021-06-11 04:28:26,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 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) [2021-06-11 04:28:26,419 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:26,419 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:26,628 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-06-11 04:28:26,629 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:26,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:26,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1286942818, now seen corresponding path program 10 times [2021-06-11 04:28:26,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:26,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673969220] [2021-06-11 04:28:26,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:26,641 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:26,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,645 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-06-11 04:28:26,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,649 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-06-11 04:28:26,650 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-06-11 04:28:26,660 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-06-11 04:28:26,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:26,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,673 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:26,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:26,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673969220] [2021-06-11 04:28:26,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338149158] [2021-06-11 04:28:26,682 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:26,723 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 04:28:26,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:26,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-11 04:28:26,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:26,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:26,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:26,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:26,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:26,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:26,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:26,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:26,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:26,754 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 04:28:26,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 04:28:26,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 04:28:26,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:26,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:26,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:26,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:26,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:26,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:26,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:26,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:26,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:26,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:26,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:26,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:26,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:26,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:26,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:26,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:26,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:26,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:26,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:26,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:26,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:26,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:26,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:26,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:26,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:26,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:26,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:26,806 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:26,807 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:26,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:26,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:26,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:26,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 04:28:26,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953703077] [2021-06-11 04:28:26,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 04:28:26,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:26,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 04:28:26,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-06-11 04:28:26,814 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:26,815 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 195 transitions, 3888 flow. Second operand has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 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) [2021-06-11 04:28:26,815 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:26,815 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:26,815 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:26,954 INFO L129 PetriNetUnfolder]: 141/363 cut-off events. [2021-06-11 04:28:26,954 INFO L130 PetriNetUnfolder]: For 6698/6704 co-relation queries the response was YES. [2021-06-11 04:28:26,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3103 conditions, 363 events. 141/363 cut-off events. For 6698/6704 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2161 event pairs, 0 based on Foata normal form. 7/370 useless extension candidates. Maximal degree in co-relation 3038. Up to 203 conditions per place. [2021-06-11 04:28:26,957 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 151 selfloop transitions, 55 changer transitions 0/213 dead transitions. [2021-06-11 04:28:26,957 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 213 transitions, 4562 flow [2021-06-11 04:28:26,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 04:28:26,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 04:28:26,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 952 transitions. [2021-06-11 04:28:26,959 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2021-06-11 04:28:26,959 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 952 transitions. [2021-06-11 04:28:26,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 952 transitions. [2021-06-11 04:28:26,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:26,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 952 transitions. [2021-06-11 04:28:26,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 79.33333333333333) internal successors, (952), 12 states have internal predecessors, (952), 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) [2021-06-11 04:28:26,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 112.0) internal successors, (1456), 13 states have internal predecessors, (1456), 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) [2021-06-11 04:28:26,963 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 112.0) internal successors, (1456), 13 states have internal predecessors, (1456), 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) [2021-06-11 04:28:26,963 INFO L185 Difference]: Start difference. First operand has 144 places, 195 transitions, 3888 flow. Second operand 12 states and 952 transitions. [2021-06-11 04:28:26,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 213 transitions, 4562 flow [2021-06-11 04:28:27,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 213 transitions, 4134 flow, removed 167 selfloop flow, removed 13 redundant places. [2021-06-11 04:28:27,006 INFO L241 Difference]: Finished difference. Result has 145 places, 199 transitions, 3730 flow [2021-06-11 04:28:27,007 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=3482, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3730, PETRI_PLACES=145, PETRI_TRANSITIONS=199} [2021-06-11 04:28:27,007 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 127 predicate places. [2021-06-11 04:28:27,007 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:27,007 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 199 transitions, 3730 flow [2021-06-11 04:28:27,007 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 199 transitions, 3730 flow [2021-06-11 04:28:27,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 145 places, 199 transitions, 3730 flow [2021-06-11 04:28:27,036 INFO L129 PetriNetUnfolder]: 141/362 cut-off events. [2021-06-11 04:28:27,036 INFO L130 PetriNetUnfolder]: For 6188/6188 co-relation queries the response was YES. [2021-06-11 04:28:27,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2732 conditions, 362 events. 141/362 cut-off events. For 6188/6188 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2176 event pairs, 0 based on Foata normal form. 0/362 useless extension candidates. Maximal degree in co-relation 2670. Up to 153 conditions per place. [2021-06-11 04:28:27,039 INFO L151 LiptonReduction]: Number of co-enabled transitions 570 [2021-06-11 04:28:27,049 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:27,049 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:27,049 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-06-11 04:28:27,050 INFO L480 AbstractCegarLoop]: Abstraction has has 145 places, 199 transitions, 3730 flow [2021-06-11 04:28:27,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 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) [2021-06-11 04:28:27,050 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:27,050 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:27,264 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:27,265 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:27,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:27,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1840070649, now seen corresponding path program 11 times [2021-06-11 04:28:27,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:27,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773683923] [2021-06-11 04:28:27,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:27,278 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:27,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,281 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:27,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:27,286 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-06-11 04:28:27,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:27,292 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-11 04:28:27,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:27,302 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-06-11 04:28:27,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:27,308 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:27,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:27,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773683923] [2021-06-11 04:28:27,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262071463] [2021-06-11 04:28:27,314 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:27,354 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 04:28:27,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:27,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-11 04:28:27,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:27,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:27,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:27,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:27,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:27,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:27,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:27,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:27,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:27,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:27,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:27,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:27,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:27,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:27,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:27,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:27,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:27,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:27,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:27,406 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-06-11 04:28:27,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 04:28:27,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 04:28:27,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:27,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:27,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:27,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:27,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:27,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:27,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:27,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:27,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:27,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:27,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:27,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:27,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:27,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:27,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:27,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:27,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:27,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:27,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,446 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:27,447 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:27,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:27,452 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:27,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:27,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 04:28:27,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960156574] [2021-06-11 04:28:27,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 04:28:27,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:27,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 04:28:27,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-06-11 04:28:27,453 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:27,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 199 transitions, 3730 flow. Second operand has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 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) [2021-06-11 04:28:27,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:27,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:27,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:27,539 INFO L129 PetriNetUnfolder]: 143/370 cut-off events. [2021-06-11 04:28:27,539 INFO L130 PetriNetUnfolder]: For 6856/6862 co-relation queries the response was YES. [2021-06-11 04:28:27,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3054 conditions, 370 events. 143/370 cut-off events. For 6856/6862 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2178 event pairs, 0 based on Foata normal form. 7/377 useless extension candidates. Maximal degree in co-relation 2990. Up to 212 conditions per place. [2021-06-11 04:28:27,543 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 150 selfloop transitions, 53 changer transitions 0/210 dead transitions. [2021-06-11 04:28:27,543 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 210 transitions, 4309 flow [2021-06-11 04:28:27,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 04:28:27,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 04:28:27,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 795 transitions. [2021-06-11 04:28:27,544 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7098214285714286 [2021-06-11 04:28:27,544 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 795 transitions. [2021-06-11 04:28:27,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 795 transitions. [2021-06-11 04:28:27,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:27,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 795 transitions. [2021-06-11 04:28:27,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.5) internal successors, (795), 10 states have internal predecessors, (795), 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) [2021-06-11 04:28:27,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 states have internal predecessors, (1232), 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) [2021-06-11 04:28:27,546 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 states have internal predecessors, (1232), 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) [2021-06-11 04:28:27,546 INFO L185 Difference]: Start difference. First operand has 145 places, 199 transitions, 3730 flow. Second operand 10 states and 795 transitions. [2021-06-11 04:28:27,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 210 transitions, 4309 flow [2021-06-11 04:28:27,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 210 transitions, 4211 flow, removed 13 selfloop flow, removed 8 redundant places. [2021-06-11 04:28:27,574 INFO L241 Difference]: Finished difference. Result has 147 places, 201 transitions, 3855 flow [2021-06-11 04:28:27,574 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=3633, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3855, PETRI_PLACES=147, PETRI_TRANSITIONS=201} [2021-06-11 04:28:27,574 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 129 predicate places. [2021-06-11 04:28:27,574 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:27,574 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 201 transitions, 3855 flow [2021-06-11 04:28:27,574 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 201 transitions, 3855 flow [2021-06-11 04:28:27,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 147 places, 201 transitions, 3855 flow [2021-06-11 04:28:27,603 INFO L129 PetriNetUnfolder]: 143/368 cut-off events. [2021-06-11 04:28:27,603 INFO L130 PetriNetUnfolder]: For 6652/6652 co-relation queries the response was YES. [2021-06-11 04:28:27,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2818 conditions, 368 events. 143/368 cut-off events. For 6652/6652 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2222 event pairs, 0 based on Foata normal form. 0/368 useless extension candidates. Maximal degree in co-relation 2756. Up to 152 conditions per place. [2021-06-11 04:28:27,606 INFO L151 LiptonReduction]: Number of co-enabled transitions 574 [2021-06-11 04:28:27,616 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:27,616 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:27,616 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-06-11 04:28:27,617 INFO L480 AbstractCegarLoop]: Abstraction has has 147 places, 201 transitions, 3855 flow [2021-06-11 04:28:27,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 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) [2021-06-11 04:28:27,617 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:27,617 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:27,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-06-11 04:28:27,833 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:27,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:27,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1859176569, now seen corresponding path program 12 times [2021-06-11 04:28:27,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:27,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357958939] [2021-06-11 04:28:27,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:27,846 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:27,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,849 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:27,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:27,853 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-06-11 04:28:27,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:27,859 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-06-11 04:28:27,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:27,864 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-06-11 04:28:27,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,870 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:27,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:27,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357958939] [2021-06-11 04:28:27,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487445475] [2021-06-11 04:28:27,875 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:27,919 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-11 04:28:27,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:27,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-11 04:28:27,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:27,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:27,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:27,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:27,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:27,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:27,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:27,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:27,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:27,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:27,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:27,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:27,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:27,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:27,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:27,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:27,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:27,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:27,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:27,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:27,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:27,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:27,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:27,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:27,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:27,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:27,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:27,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:27,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:27,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:27,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:27,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:27,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:27,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:27,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:27,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:27,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:27,977 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-06-11 04:28:27,977 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-06-11 04:28:27,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:28,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 04:28:28,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:28,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 04:28:28,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 04:28:28,007 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-06-11 04:28:28,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:28,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,009 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-11 04:28:28,010 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:28,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,011 INFO L147 QuantifierPusher]: treesize reduction -7, result has 113.2 percent of original size 60 [2021-06-11 04:28:28,012 INFO L147 QuantifierPusher]: treesize reduction -7, result has 113.2 percent of original size 60 [2021-06-11 04:28:28,013 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-11 04:28:28,013 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:28,014 INFO L142 QuantifierPusher]: treesize reduction -7, result has 110.4 percent of original size [2021-06-11 04:28:28,026 INFO L147 QuantifierPusher]: treesize reduction 231, result has 69.6 percent of original size 528 [2021-06-11 04:28:28,028 INFO L147 QuantifierPusher]: treesize reduction 231, result has 69.6 percent of original size 528 [2021-06-11 04:28:28,030 INFO L142 QuantifierPusher]: treesize reduction 231, result has 69.6 percent of original size [2021-06-11 04:28:28,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 528 [2021-06-11 04:28:28,045 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:28,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:28,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 04:28:28,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393844624] [2021-06-11 04:28:28,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 04:28:28,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:28,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 04:28:28,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-11 04:28:28,046 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:28,047 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 201 transitions, 3855 flow. Second operand has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 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) [2021-06-11 04:28:28,047 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:28,047 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:28,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:28,274 INFO L129 PetriNetUnfolder]: 164/422 cut-off events. [2021-06-11 04:28:28,274 INFO L130 PetriNetUnfolder]: For 9259/9265 co-relation queries the response was YES. [2021-06-11 04:28:28,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3547 conditions, 422 events. 164/422 cut-off events. For 9259/9265 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 2600 event pairs, 0 based on Foata normal form. 9/431 useless extension candidates. Maximal degree in co-relation 3483. Up to 198 conditions per place. [2021-06-11 04:28:28,278 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 97 selfloop transitions, 132 changer transitions 0/236 dead transitions. [2021-06-11 04:28:28,278 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 236 transitions, 5063 flow [2021-06-11 04:28:28,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-11 04:28:28,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-06-11 04:28:28,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1195 transitions. [2021-06-11 04:28:28,280 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7113095238095238 [2021-06-11 04:28:28,280 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1195 transitions. [2021-06-11 04:28:28,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1195 transitions. [2021-06-11 04:28:28,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:28,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1195 transitions. [2021-06-11 04:28:28,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 79.66666666666667) internal successors, (1195), 15 states have internal predecessors, (1195), 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) [2021-06-11 04:28:28,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 112.0) internal successors, (1792), 16 states have internal predecessors, (1792), 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) [2021-06-11 04:28:28,283 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 112.0) internal successors, (1792), 16 states have internal predecessors, (1792), 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) [2021-06-11 04:28:28,283 INFO L185 Difference]: Start difference. First operand has 147 places, 201 transitions, 3855 flow. Second operand 15 states and 1195 transitions. [2021-06-11 04:28:28,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 236 transitions, 5063 flow [2021-06-11 04:28:28,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 236 transitions, 4995 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-06-11 04:28:28,314 INFO L241 Difference]: Finished difference. Result has 157 places, 231 transitions, 4916 flow [2021-06-11 04:28:28,314 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=3791, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4916, PETRI_PLACES=157, PETRI_TRANSITIONS=231} [2021-06-11 04:28:28,314 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 139 predicate places. [2021-06-11 04:28:28,314 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:28,314 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 231 transitions, 4916 flow [2021-06-11 04:28:28,314 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 231 transitions, 4916 flow [2021-06-11 04:28:28,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 157 places, 231 transitions, 4916 flow [2021-06-11 04:28:28,349 INFO L129 PetriNetUnfolder]: 164/420 cut-off events. [2021-06-11 04:28:28,350 INFO L130 PetriNetUnfolder]: For 8579/8579 co-relation queries the response was YES. [2021-06-11 04:28:28,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3500 conditions, 420 events. 164/420 cut-off events. For 8579/8579 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2626 event pairs, 0 based on Foata normal form. 0/420 useless extension candidates. Maximal degree in co-relation 3434. Up to 190 conditions per place. [2021-06-11 04:28:28,354 INFO L151 LiptonReduction]: Number of co-enabled transitions 642 [2021-06-11 04:28:28,366 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:28,366 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:28,366 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-06-11 04:28:28,367 INFO L480 AbstractCegarLoop]: Abstraction has has 157 places, 231 transitions, 4916 flow [2021-06-11 04:28:28,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 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) [2021-06-11 04:28:28,367 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:28,367 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:28,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-06-11 04:28:28,577 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:28,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:28,577 INFO L82 PathProgramCache]: Analyzing trace with hash -991250070, now seen corresponding path program 13 times [2021-06-11 04:28:28,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:28,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658514694] [2021-06-11 04:28:28,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:28,588 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:28,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,592 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-06-11 04:28:28,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:28,596 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-06-11 04:28:28,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:28,601 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-06-11 04:28:28,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:28,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:28,613 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:28,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:28,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658514694] [2021-06-11 04:28:28,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367669437] [2021-06-11 04:28:28,619 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:28,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-11 04:28:28,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:28,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:28,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:28,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:28,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:28,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:28,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:28,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:28,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:28,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:28,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:28,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:28,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:28,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:28,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:28,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:28,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:28,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:28,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:28,715 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-06-11 04:28:28,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:28,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:28,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:28,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:28,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:28,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:28,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:28,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:28,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:28,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:28,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:28,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:28,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:28,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:28,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:28,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:28,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:28,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:28,741 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:28,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:28,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 04:28:28,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694626880] [2021-06-11 04:28:28,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 04:28:28,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:28,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 04:28:28,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-06-11 04:28:28,743 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:28,744 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 231 transitions, 4916 flow. Second operand has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 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) [2021-06-11 04:28:28,744 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:28,744 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:28,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:28,911 INFO L129 PetriNetUnfolder]: 167/430 cut-off events. [2021-06-11 04:28:28,912 INFO L130 PetriNetUnfolder]: For 9354/9360 co-relation queries the response was YES. [2021-06-11 04:28:28,913 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3875 conditions, 430 events. 167/430 cut-off events. For 9354/9360 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 2623 event pairs, 0 based on Foata normal form. 7/437 useless extension candidates. Maximal degree in co-relation 3807. Up to 213 conditions per place. [2021-06-11 04:28:28,916 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 147 selfloop transitions, 98 changer transitions 0/252 dead transitions. [2021-06-11 04:28:28,916 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 252 transitions, 5740 flow [2021-06-11 04:28:28,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-11 04:28:28,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-11 04:28:28,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1270 transitions. [2021-06-11 04:28:28,917 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7087053571428571 [2021-06-11 04:28:28,917 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1270 transitions. [2021-06-11 04:28:28,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1270 transitions. [2021-06-11 04:28:28,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:28,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1270 transitions. [2021-06-11 04:28:28,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 79.375) internal successors, (1270), 16 states have internal predecessors, (1270), 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) [2021-06-11 04:28:28,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 112.0) internal successors, (1904), 17 states have internal predecessors, (1904), 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) [2021-06-11 04:28:28,920 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 112.0) internal successors, (1904), 17 states have internal predecessors, (1904), 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) [2021-06-11 04:28:28,920 INFO L185 Difference]: Start difference. First operand has 157 places, 231 transitions, 4916 flow. Second operand 16 states and 1270 transitions. [2021-06-11 04:28:28,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 252 transitions, 5740 flow [2021-06-11 04:28:28,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 252 transitions, 5492 flow, removed 85 selfloop flow, removed 10 redundant places. [2021-06-11 04:28:28,960 INFO L241 Difference]: Finished difference. Result has 164 places, 235 transitions, 5060 flow [2021-06-11 04:28:28,960 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=4684, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=5060, PETRI_PLACES=164, PETRI_TRANSITIONS=235} [2021-06-11 04:28:28,960 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 146 predicate places. [2021-06-11 04:28:28,960 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:28,960 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 235 transitions, 5060 flow [2021-06-11 04:28:28,960 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 235 transitions, 5060 flow [2021-06-11 04:28:28,962 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 164 places, 235 transitions, 5060 flow [2021-06-11 04:28:28,996 INFO L129 PetriNetUnfolder]: 167/429 cut-off events. [2021-06-11 04:28:28,996 INFO L130 PetriNetUnfolder]: For 9060/9060 co-relation queries the response was YES. [2021-06-11 04:28:28,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3601 conditions, 429 events. 167/429 cut-off events. For 9060/9060 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2660 event pairs, 0 based on Foata normal form. 0/429 useless extension candidates. Maximal degree in co-relation 3534. Up to 175 conditions per place. [2021-06-11 04:28:29,000 INFO L151 LiptonReduction]: Number of co-enabled transitions 650 [2021-06-11 04:28:29,012 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:29,012 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:29,012 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-06-11 04:28:29,012 INFO L480 AbstractCegarLoop]: Abstraction has has 164 places, 235 transitions, 5060 flow [2021-06-11 04:28:29,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 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) [2021-06-11 04:28:29,013 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:29,013 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:29,223 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:29,223 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:29,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:29,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1611972238, now seen corresponding path program 14 times [2021-06-11 04:28:29,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:29,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799073133] [2021-06-11 04:28:29,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:29,239 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:29,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:29,248 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:29,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:29,257 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-06-11 04:28:29,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,263 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-06-11 04:28:29,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:29,269 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:29,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:29,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:29,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799073133] [2021-06-11 04:28:29,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027989129] [2021-06-11 04:28:29,275 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:29,323 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 04:28:29,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:29,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-11 04:28:29,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:29,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:29,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:29,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:29,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:29,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:29,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:29,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:29,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:29,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:29,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:29,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:29,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:29,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:29,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:29,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:29,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:29,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:29,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:29,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:29,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:29,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:29,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:29,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:29,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:29,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:29,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:29,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:29,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:29,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:29,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:29,393 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 04:28:29,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 04:28:29,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 04:28:29,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:29,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:29,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:29,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:29,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:29,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:29,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:29,411 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:29,411 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:29,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:29,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:29,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:29,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 04:28:29,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658374959] [2021-06-11 04:28:29,416 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 04:28:29,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:29,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 04:28:29,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-06-11 04:28:29,418 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:29,419 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 235 transitions, 5060 flow. Second operand has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 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) [2021-06-11 04:28:29,419 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:29,419 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:29,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:29,619 INFO L129 PetriNetUnfolder]: 176/453 cut-off events. [2021-06-11 04:28:29,619 INFO L130 PetriNetUnfolder]: For 10437/10443 co-relation queries the response was YES. [2021-06-11 04:28:29,621 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4151 conditions, 453 events. 176/453 cut-off events. For 10437/10443 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 2801 event pairs, 0 based on Foata normal form. 7/460 useless extension candidates. Maximal degree in co-relation 4082. Up to 189 conditions per place. [2021-06-11 04:28:29,623 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 105 selfloop transitions, 149 changer transitions 0/261 dead transitions. [2021-06-11 04:28:29,623 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 261 transitions, 6091 flow [2021-06-11 04:28:29,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-11 04:28:29,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-11 04:28:29,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1272 transitions. [2021-06-11 04:28:29,625 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7098214285714286 [2021-06-11 04:28:29,625 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1272 transitions. [2021-06-11 04:28:29,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1272 transitions. [2021-06-11 04:28:29,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:29,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1272 transitions. [2021-06-11 04:28:29,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 79.5) internal successors, (1272), 16 states have internal predecessors, (1272), 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) [2021-06-11 04:28:29,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 112.0) internal successors, (1904), 17 states have internal predecessors, (1904), 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) [2021-06-11 04:28:29,628 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 112.0) internal successors, (1904), 17 states have internal predecessors, (1904), 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) [2021-06-11 04:28:29,628 INFO L185 Difference]: Start difference. First operand has 164 places, 235 transitions, 5060 flow. Second operand 16 states and 1272 transitions. [2021-06-11 04:28:29,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 261 transitions, 6091 flow [2021-06-11 04:28:29,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 261 transitions, 5938 flow, removed 10 selfloop flow, removed 12 redundant places. [2021-06-11 04:28:29,667 INFO L241 Difference]: Finished difference. Result has 168 places, 245 transitions, 5618 flow [2021-06-11 04:28:29,667 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=4907, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=5618, PETRI_PLACES=168, PETRI_TRANSITIONS=245} [2021-06-11 04:28:29,667 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 150 predicate places. [2021-06-11 04:28:29,668 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:29,668 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 168 places, 245 transitions, 5618 flow [2021-06-11 04:28:29,668 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 168 places, 245 transitions, 5618 flow [2021-06-11 04:28:29,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 168 places, 245 transitions, 5618 flow [2021-06-11 04:28:29,706 INFO L129 PetriNetUnfolder]: 176/455 cut-off events. [2021-06-11 04:28:29,706 INFO L130 PetriNetUnfolder]: For 10341/10341 co-relation queries the response was YES. [2021-06-11 04:28:29,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3971 conditions, 455 events. 176/455 cut-off events. For 10341/10341 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 2912 event pairs, 0 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 3904. Up to 186 conditions per place. [2021-06-11 04:28:29,710 INFO L151 LiptonReduction]: Number of co-enabled transitions 670 [2021-06-11 04:28:29,723 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:29,723 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:29,723 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-06-11 04:28:29,723 INFO L480 AbstractCegarLoop]: Abstraction has has 168 places, 245 transitions, 5618 flow [2021-06-11 04:28:29,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 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) [2021-06-11 04:28:29,724 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:29,724 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:29,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-06-11 04:28:29,937 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:29,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:29,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1611991737, now seen corresponding path program 15 times [2021-06-11 04:28:29,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:29,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810714958] [2021-06-11 04:28:29,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:29,956 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:29,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:29,960 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:29,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:29,964 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-06-11 04:28:29,964 INFO L147 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size 11 [2021-06-11 04:28:29,972 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-06-11 04:28:29,972 INFO L147 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size 9 [2021-06-11 04:28:29,981 INFO L142 QuantifierPusher]: treesize reduction 13, result has 35.0 percent of original size [2021-06-11 04:28:29,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:29,987 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:29,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:29,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:29,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810714958] [2021-06-11 04:28:29,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206943021] [2021-06-11 04:28:29,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:30,041 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-11 04:28:30,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:30,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-11 04:28:30,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:30,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:30,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:30,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:30,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:30,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:30,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:30,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:30,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:30,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:30,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:30,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:30,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:30,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:30,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:30,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:30,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:30,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:30,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:30,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:30,121 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-06-11 04:28:30,122 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-11 04:28:30,123 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:30,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:30,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:30,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:30,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:30,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-06-11 04:28:30,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133800914] [2021-06-11 04:28:30,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-11 04:28:30,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:30,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-11 04:28:30,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-06-11 04:28:30,137 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:30,138 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 245 transitions, 5618 flow. Second operand has 14 states, 14 states have (on average 78.0) internal successors, (1092), 14 states have internal predecessors, (1092), 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) [2021-06-11 04:28:30,138 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:30,138 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:30,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:30,478 INFO L129 PetriNetUnfolder]: 213/554 cut-off events. [2021-06-11 04:28:30,478 INFO L130 PetriNetUnfolder]: For 16135/16141 co-relation queries the response was YES. [2021-06-11 04:28:30,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5267 conditions, 554 events. 213/554 cut-off events. For 16135/16141 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 3627 event pairs, 0 based on Foata normal form. 11/565 useless extension candidates. Maximal degree in co-relation 5198. Up to 254 conditions per place. [2021-06-11 04:28:30,483 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 66 selfloop transitions, 238 changer transitions 0/311 dead transitions. [2021-06-11 04:28:30,483 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 311 transitions, 7817 flow [2021-06-11 04:28:30,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-11 04:28:30,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-06-11 04:28:30,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1832 transitions. [2021-06-11 04:28:30,486 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7111801242236024 [2021-06-11 04:28:30,486 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 1832 transitions. [2021-06-11 04:28:30,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 1832 transitions. [2021-06-11 04:28:30,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:30,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 1832 transitions. [2021-06-11 04:28:30,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 79.65217391304348) internal successors, (1832), 23 states have internal predecessors, (1832), 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) [2021-06-11 04:28:30,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 112.0) internal successors, (2688), 24 states have internal predecessors, (2688), 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) [2021-06-11 04:28:30,490 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 112.0) internal successors, (2688), 24 states have internal predecessors, (2688), 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) [2021-06-11 04:28:30,490 INFO L185 Difference]: Start difference. First operand has 168 places, 245 transitions, 5618 flow. Second operand 23 states and 1832 transitions. [2021-06-11 04:28:30,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 311 transitions, 7817 flow [2021-06-11 04:28:30,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 311 transitions, 7590 flow, removed 25 selfloop flow, removed 12 redundant places. [2021-06-11 04:28:30,540 INFO L241 Difference]: Finished difference. Result has 183 places, 301 transitions, 7570 flow [2021-06-11 04:28:30,540 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=5407, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=7570, PETRI_PLACES=183, PETRI_TRANSITIONS=301} [2021-06-11 04:28:30,540 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 165 predicate places. [2021-06-11 04:28:30,540 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:30,540 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 183 places, 301 transitions, 7570 flow [2021-06-11 04:28:30,540 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 183 places, 301 transitions, 7570 flow [2021-06-11 04:28:30,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 183 places, 301 transitions, 7570 flow [2021-06-11 04:28:30,591 INFO L129 PetriNetUnfolder]: 213/555 cut-off events. [2021-06-11 04:28:30,591 INFO L130 PetriNetUnfolder]: For 14631/14631 co-relation queries the response was YES. [2021-06-11 04:28:30,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5237 conditions, 555 events. 213/555 cut-off events. For 14631/14631 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 3748 event pairs, 0 based on Foata normal form. 0/555 useless extension candidates. Maximal degree in co-relation 5168. Up to 250 conditions per place. [2021-06-11 04:28:30,596 INFO L151 LiptonReduction]: Number of co-enabled transitions 790 [2021-06-11 04:28:30,615 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:30,615 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:30,615 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-06-11 04:28:30,615 INFO L480 AbstractCegarLoop]: Abstraction has has 183 places, 301 transitions, 7570 flow [2021-06-11 04:28:30,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 78.0) internal successors, (1092), 14 states have internal predecessors, (1092), 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) [2021-06-11 04:28:30,615 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:30,615 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:30,825 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:30,825 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:30,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:30,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1320792093, now seen corresponding path program 16 times [2021-06-11 04:28:30,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:30,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603554620] [2021-06-11 04:28:30,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:30,836 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:30,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,840 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 04:28:30,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:30,844 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-06-11 04:28:30,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:30,850 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-06-11 04:28:30,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:30,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,861 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:30,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,867 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:30,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603554620] [2021-06-11 04:28:30,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052201104] [2021-06-11 04:28:30,868 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:30,904 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 04:28:30,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:30,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-11 04:28:30,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:30,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:30,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:30,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:30,923 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-06-11 04:28:30,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:30,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:30,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:30,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:30,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:30,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:30,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:30,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:30,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:30,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:30,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:30,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:30,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:30,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:30,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:30,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:30,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:30,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:30,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:30,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:30,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:30,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:30,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:30,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:30,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:30,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,965 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-06-11 04:28:30,965 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-06-11 04:28:30,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:30,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:30,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 04:28:30,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:30,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:30,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 04:28:30,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:30,981 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:30,982 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:30,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:30,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:30,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:30,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 04:28:30,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675924534] [2021-06-11 04:28:30,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 04:28:30,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:30,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 04:28:30,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-06-11 04:28:30,988 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:30,989 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 301 transitions, 7570 flow. Second operand has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 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) [2021-06-11 04:28:30,989 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:30,989 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:30,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:31,130 INFO L129 PetriNetUnfolder]: 216/563 cut-off events. [2021-06-11 04:28:31,130 INFO L130 PetriNetUnfolder]: For 14975/14981 co-relation queries the response was YES. [2021-06-11 04:28:31,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5685 conditions, 563 events. 216/563 cut-off events. For 14975/14981 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 3727 event pairs, 0 based on Foata normal form. 7/570 useless extension candidates. Maximal degree in co-relation 5614. Up to 364 conditions per place. [2021-06-11 04:28:31,136 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 279 selfloop transitions, 39 changer transitions 0/325 dead transitions. [2021-06-11 04:28:31,136 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 325 transitions, 8601 flow [2021-06-11 04:28:31,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 04:28:31,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 04:28:31,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 714 transitions. [2021-06-11 04:28:31,137 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2021-06-11 04:28:31,137 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 714 transitions. [2021-06-11 04:28:31,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 714 transitions. [2021-06-11 04:28:31,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:31,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 714 transitions. [2021-06-11 04:28:31,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 79.33333333333333) internal successors, (714), 9 states have internal predecessors, (714), 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) [2021-06-11 04:28:31,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 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) [2021-06-11 04:28:31,141 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 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) [2021-06-11 04:28:31,141 INFO L185 Difference]: Start difference. First operand has 183 places, 301 transitions, 7570 flow. Second operand 9 states and 714 transitions. [2021-06-11 04:28:31,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 325 transitions, 8601 flow [2021-06-11 04:28:31,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 325 transitions, 7868 flow, removed 312 selfloop flow, removed 13 redundant places. [2021-06-11 04:28:31,205 INFO L241 Difference]: Finished difference. Result has 181 places, 306 transitions, 7082 flow [2021-06-11 04:28:31,205 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=6870, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7082, PETRI_PLACES=181, PETRI_TRANSITIONS=306} [2021-06-11 04:28:31,206 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 163 predicate places. [2021-06-11 04:28:31,206 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:31,206 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 181 places, 306 transitions, 7082 flow [2021-06-11 04:28:31,206 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 181 places, 306 transitions, 7082 flow [2021-06-11 04:28:31,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 181 places, 306 transitions, 7082 flow [2021-06-11 04:28:31,271 INFO L129 PetriNetUnfolder]: 216/563 cut-off events. [2021-06-11 04:28:31,272 INFO L130 PetriNetUnfolder]: For 13430/13430 co-relation queries the response was YES. [2021-06-11 04:28:31,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4985 conditions, 563 events. 216/563 cut-off events. For 13430/13430 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 3841 event pairs, 0 based on Foata normal form. 0/563 useless extension candidates. Maximal degree in co-relation 4913. Up to 240 conditions per place. [2021-06-11 04:28:31,277 INFO L151 LiptonReduction]: Number of co-enabled transitions 802 [2021-06-11 04:28:31,295 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:31,295 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:31,295 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 89 [2021-06-11 04:28:31,295 INFO L480 AbstractCegarLoop]: Abstraction has has 181 places, 306 transitions, 7082 flow [2021-06-11 04:28:31,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 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) [2021-06-11 04:28:31,295 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:31,295 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:31,496 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-06-11 04:28:31,496 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:31,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:31,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1213016985, now seen corresponding path program 17 times [2021-06-11 04:28:31,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:31,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832956655] [2021-06-11 04:28:31,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:31,510 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:31,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,514 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:31,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:31,519 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-06-11 04:28:31,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:31,524 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-06-11 04:28:31,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:31,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:31,535 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:31,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:31,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832956655] [2021-06-11 04:28:31,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744965091] [2021-06-11 04:28:31,540 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:31,585 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 04:28:31,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:31,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-11 04:28:31,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:31,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:31,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:31,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:31,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:31,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:31,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:31,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:31,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:31,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:31,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:31,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:31,614 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-06-11 04:28:31,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:31,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:31,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:31,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:31,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:31,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:31,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:31,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:31,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:31,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:31,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:31,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:31,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:31,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:31,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:31,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:31,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:31,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:31,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:31,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:31,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,641 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-06-11 04:28:31,641 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-06-11 04:28:31,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:31,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:31,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:31,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 04:28:31,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:31,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:31,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 04:28:31,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:31,656 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:31,656 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:31,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:31,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:31,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:31,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 04:28:31,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095531900] [2021-06-11 04:28:31,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 04:28:31,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:31,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 04:28:31,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-06-11 04:28:31,663 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:31,664 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 306 transitions, 7082 flow. Second operand has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 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) [2021-06-11 04:28:31,664 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:31,664 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:31,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:31,824 INFO L129 PetriNetUnfolder]: 219/571 cut-off events. [2021-06-11 04:28:31,824 INFO L130 PetriNetUnfolder]: For 14129/14135 co-relation queries the response was YES. [2021-06-11 04:28:31,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5442 conditions, 571 events. 219/571 cut-off events. For 14129/14135 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 3795 event pairs, 0 based on Foata normal form. 7/578 useless extension candidates. Maximal degree in co-relation 5368. Up to 347 conditions per place. [2021-06-11 04:28:31,830 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 258 selfloop transitions, 63 changer transitions 0/328 dead transitions. [2021-06-11 04:28:31,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 328 transitions, 8074 flow [2021-06-11 04:28:31,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 04:28:31,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 04:28:31,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 952 transitions. [2021-06-11 04:28:31,831 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2021-06-11 04:28:31,831 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 952 transitions. [2021-06-11 04:28:31,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 952 transitions. [2021-06-11 04:28:31,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:31,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 952 transitions. [2021-06-11 04:28:31,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 79.33333333333333) internal successors, (952), 12 states have internal predecessors, (952), 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) [2021-06-11 04:28:31,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 112.0) internal successors, (1456), 13 states have internal predecessors, (1456), 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) [2021-06-11 04:28:31,833 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 112.0) internal successors, (1456), 13 states have internal predecessors, (1456), 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) [2021-06-11 04:28:31,833 INFO L185 Difference]: Start difference. First operand has 181 places, 306 transitions, 7082 flow. Second operand 12 states and 952 transitions. [2021-06-11 04:28:31,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 328 transitions, 8074 flow [2021-06-11 04:28:31,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 328 transitions, 7956 flow, removed 17 selfloop flow, removed 6 redundant places. [2021-06-11 04:28:31,890 INFO L241 Difference]: Finished difference. Result has 189 places, 311 transitions, 7260 flow [2021-06-11 04:28:31,890 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=6966, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7260, PETRI_PLACES=189, PETRI_TRANSITIONS=311} [2021-06-11 04:28:31,890 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 171 predicate places. [2021-06-11 04:28:31,890 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:31,891 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 189 places, 311 transitions, 7260 flow [2021-06-11 04:28:31,891 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 189 places, 311 transitions, 7260 flow [2021-06-11 04:28:31,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 189 places, 311 transitions, 7260 flow [2021-06-11 04:28:31,942 INFO L129 PetriNetUnfolder]: 219/572 cut-off events. [2021-06-11 04:28:31,942 INFO L130 PetriNetUnfolder]: For 13844/13844 co-relation queries the response was YES. [2021-06-11 04:28:31,944 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5065 conditions, 572 events. 219/572 cut-off events. For 13844/13844 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 3905 event pairs, 0 based on Foata normal form. 0/572 useless extension candidates. Maximal degree in co-relation 4991. Up to 244 conditions per place. [2021-06-11 04:28:31,948 INFO L151 LiptonReduction]: Number of co-enabled transitions 814 [2021-06-11 04:28:31,966 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:31,966 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:31,966 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 76 [2021-06-11 04:28:31,966 INFO L480 AbstractCegarLoop]: Abstraction has has 189 places, 311 transitions, 7260 flow [2021-06-11 04:28:31,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 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) [2021-06-11 04:28:31,967 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:31,967 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:32,167 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-06-11 04:28:32,167 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:32,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:32,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1842857625, now seen corresponding path program 18 times [2021-06-11 04:28:32,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:32,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49869940] [2021-06-11 04:28:32,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:32,177 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:32,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,181 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:32,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:32,185 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-06-11 04:28:32,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:32,190 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-06-11 04:28:32,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:32,195 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-11 04:28:32,196 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-06-11 04:28:32,205 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:32,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:32,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49869940] [2021-06-11 04:28:32,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975103959] [2021-06-11 04:28:32,211 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:32,248 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-11 04:28:32,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:32,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-11 04:28:32,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:32,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:32,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:32,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:32,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:32,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:32,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:32,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:32,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:32,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:32,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:32,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:32,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:32,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:32,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:32,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:32,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:32,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:32,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:32,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:32,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:32,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:32,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:32,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:32,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:32,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:32,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:32,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:32,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:32,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:32,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:32,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:32,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:32,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:32,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:32,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:32,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,310 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-06-11 04:28:32,310 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-06-11 04:28:32,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:32,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 04:28:32,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:32,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:32,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 04:28:32,323 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-06-11 04:28:32,323 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-11 04:28:32,324 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:32,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:32,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:32,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:32,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:32,337 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:32,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:32,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-06-11 04:28:32,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454027713] [2021-06-11 04:28:32,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-11 04:28:32,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:32,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-11 04:28:32,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-06-11 04:28:32,338 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:32,339 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 311 transitions, 7260 flow. Second operand has 14 states, 14 states have (on average 78.0) internal successors, (1092), 14 states have internal predecessors, (1092), 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) [2021-06-11 04:28:32,339 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:32,339 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:32,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:32,628 INFO L129 PetriNetUnfolder]: 242/635 cut-off events. [2021-06-11 04:28:32,628 INFO L130 PetriNetUnfolder]: For 20037/20043 co-relation queries the response was YES. [2021-06-11 04:28:32,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6142 conditions, 635 events. 242/635 cut-off events. For 20037/20043 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 4361 event pairs, 0 based on Foata normal form. 11/646 useless extension candidates. Maximal degree in co-relation 6066. Up to 288 conditions per place. [2021-06-11 04:28:32,636 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 163 selfloop transitions, 185 changer transitions 0/355 dead transitions. [2021-06-11 04:28:32,636 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 355 transitions, 9093 flow [2021-06-11 04:28:32,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-11 04:28:32,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-06-11 04:28:32,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1355 transitions. [2021-06-11 04:28:32,637 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7116596638655462 [2021-06-11 04:28:32,638 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1355 transitions. [2021-06-11 04:28:32,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1355 transitions. [2021-06-11 04:28:32,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:32,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1355 transitions. [2021-06-11 04:28:32,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 79.70588235294117) internal successors, (1355), 17 states have internal predecessors, (1355), 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) [2021-06-11 04:28:32,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 112.0) internal successors, (2016), 18 states have internal predecessors, (2016), 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) [2021-06-11 04:28:32,641 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 112.0) internal successors, (2016), 18 states have internal predecessors, (2016), 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) [2021-06-11 04:28:32,641 INFO L185 Difference]: Start difference. First operand has 189 places, 311 transitions, 7260 flow. Second operand 17 states and 1355 transitions. [2021-06-11 04:28:32,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 355 transitions, 9093 flow [2021-06-11 04:28:32,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 355 transitions, 8991 flow, removed 16 selfloop flow, removed 8 redundant places. [2021-06-11 04:28:32,713 INFO L241 Difference]: Finished difference. Result has 202 places, 344 transitions, 8731 flow [2021-06-11 04:28:32,713 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=7180, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=8731, PETRI_PLACES=202, PETRI_TRANSITIONS=344} [2021-06-11 04:28:32,713 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 184 predicate places. [2021-06-11 04:28:32,713 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:32,713 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 202 places, 344 transitions, 8731 flow [2021-06-11 04:28:32,713 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 202 places, 344 transitions, 8731 flow [2021-06-11 04:28:32,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 202 places, 344 transitions, 8731 flow [2021-06-11 04:28:32,775 INFO L129 PetriNetUnfolder]: 242/635 cut-off events. [2021-06-11 04:28:32,776 INFO L130 PetriNetUnfolder]: For 16543/16543 co-relation queries the response was YES. [2021-06-11 04:28:32,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6014 conditions, 635 events. 242/635 cut-off events. For 16543/16543 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 4493 event pairs, 0 based on Foata normal form. 0/635 useless extension candidates. Maximal degree in co-relation 5936. Up to 277 conditions per place. [2021-06-11 04:28:32,782 INFO L151 LiptonReduction]: Number of co-enabled transitions 884 [2021-06-11 04:28:32,805 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:32,805 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:32,805 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 92 [2021-06-11 04:28:32,805 INFO L480 AbstractCegarLoop]: Abstraction has has 202 places, 344 transitions, 8731 flow [2021-06-11 04:28:32,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 78.0) internal successors, (1092), 14 states have internal predecessors, (1092), 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) [2021-06-11 04:28:32,806 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:32,806 INFO L263 CegarLoopForPetriNet]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:33,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:33,013 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:33,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:33,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1320552804, now seen corresponding path program 8 times [2021-06-11 04:28:33,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:33,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889109689] [2021-06-11 04:28:33,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:33,025 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:33,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,029 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 04:28:33,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:33,034 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-06-11 04:28:33,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:33,040 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-06-11 04:28:33,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,046 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-06-11 04:28:33,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,054 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-06-11 04:28:33,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,062 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:33,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,069 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:33,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889109689] [2021-06-11 04:28:33,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845417845] [2021-06-11 04:28:33,070 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:33,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 04:28:33,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:33,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-11 04:28:33,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:33,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:33,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:33,127 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-06-11 04:28:33,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:33,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:33,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:33,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:33,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:33,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:33,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:33,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:33,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:33,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:33,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:33,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:33,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:33,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:33,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:33,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:33,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:33,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:33,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:33,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:33,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:33,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:33,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:33,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:33,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:33,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:33,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:33,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:33,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,199 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:33,200 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:33,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:33,206 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:33,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:33,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 04:28:33,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776633132] [2021-06-11 04:28:33,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 04:28:33,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:33,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 04:28:33,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2021-06-11 04:28:33,207 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:33,208 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 344 transitions, 8731 flow. Second operand has 15 states, 15 states have (on average 78.0) internal successors, (1170), 15 states have internal predecessors, (1170), 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) [2021-06-11 04:28:33,208 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:33,208 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:33,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:33,338 INFO L129 PetriNetUnfolder]: 244/642 cut-off events. [2021-06-11 04:28:33,338 INFO L130 PetriNetUnfolder]: For 18931/18937 co-relation queries the response was YES. [2021-06-11 04:28:33,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6544 conditions, 642 events. 244/642 cut-off events. For 18931/18937 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 4493 event pairs, 0 based on Foata normal form. 8/650 useless extension candidates. Maximal degree in co-relation 6464. Up to 424 conditions per place. [2021-06-11 04:28:33,344 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 319 selfloop transitions, 32 changer transitions 0/358 dead transitions. [2021-06-11 04:28:33,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 358 transitions, 9681 flow [2021-06-11 04:28:33,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 04:28:33,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 04:28:33,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 714 transitions. [2021-06-11 04:28:33,346 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2021-06-11 04:28:33,346 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 714 transitions. [2021-06-11 04:28:33,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 714 transitions. [2021-06-11 04:28:33,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:33,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 714 transitions. [2021-06-11 04:28:33,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 79.33333333333333) internal successors, (714), 9 states have internal predecessors, (714), 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) [2021-06-11 04:28:33,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 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) [2021-06-11 04:28:33,347 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 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) [2021-06-11 04:28:33,347 INFO L185 Difference]: Start difference. First operand has 202 places, 344 transitions, 8731 flow. Second operand 9 states and 714 transitions. [2021-06-11 04:28:33,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 358 transitions, 9681 flow [2021-06-11 04:28:33,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 358 transitions, 9263 flow, removed 170 selfloop flow, removed 11 redundant places. [2021-06-11 04:28:33,431 INFO L241 Difference]: Finished difference. Result has 201 places, 346 transitions, 8476 flow [2021-06-11 04:28:33,431 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=8323, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8476, PETRI_PLACES=201, PETRI_TRANSITIONS=346} [2021-06-11 04:28:33,431 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 183 predicate places. [2021-06-11 04:28:33,431 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:33,431 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 201 places, 346 transitions, 8476 flow [2021-06-11 04:28:33,431 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 201 places, 346 transitions, 8476 flow [2021-06-11 04:28:33,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 201 places, 346 transitions, 8476 flow [2021-06-11 04:28:33,504 INFO L129 PetriNetUnfolder]: 244/642 cut-off events. [2021-06-11 04:28:33,505 INFO L130 PetriNetUnfolder]: For 15428/15428 co-relation queries the response was YES. [2021-06-11 04:28:33,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5924 conditions, 642 events. 244/642 cut-off events. For 15428/15428 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 4567 event pairs, 0 based on Foata normal form. 0/642 useless extension candidates. Maximal degree in co-relation 5846. Up to 275 conditions per place. [2021-06-11 04:28:33,511 INFO L151 LiptonReduction]: Number of co-enabled transitions 890 [2021-06-11 04:28:33,533 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:33,533 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:33,533 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 102 [2021-06-11 04:28:33,534 INFO L480 AbstractCegarLoop]: Abstraction has has 201 places, 346 transitions, 8476 flow [2021-06-11 04:28:33,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 78.0) internal successors, (1170), 15 states have internal predecessors, (1170), 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) [2021-06-11 04:28:33,534 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:33,534 INFO L263 CegarLoopForPetriNet]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:33,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-06-11 04:28:33,736 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:33,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:33,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1213256274, now seen corresponding path program 9 times [2021-06-11 04:28:33,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:33,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541919009] [2021-06-11 04:28:33,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:33,749 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:33,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,752 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:33,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:33,757 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-06-11 04:28:33,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:33,762 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-06-11 04:28:33,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,767 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-06-11 04:28:33,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,774 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-06-11 04:28:33,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,781 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:33,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,787 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:33,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541919009] [2021-06-11 04:28:33,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254903428] [2021-06-11 04:28:33,787 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:33,838 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-11 04:28:33,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:33,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-11 04:28:33,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:33,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 04:28:33,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:33,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:33,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:33,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:33,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:33,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:33,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:33,872 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-06-11 04:28:33,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:33,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:33,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:33,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:33,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:33,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:33,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:33,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:33,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:33,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:33,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:33,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:33,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:33,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:33,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:33,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:33,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:33,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:33,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:33,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:33,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:33,933 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:33,933 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:33,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:33,940 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:33,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:33,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 04:28:33,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216416471] [2021-06-11 04:28:33,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 04:28:33,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:33,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 04:28:33,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-06-11 04:28:33,942 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:33,943 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 346 transitions, 8476 flow. Second operand has 15 states, 15 states have (on average 78.0) internal successors, (1170), 15 states have internal predecessors, (1170), 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) [2021-06-11 04:28:33,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:33,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:33,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:34,081 INFO L129 PetriNetUnfolder]: 246/647 cut-off events. [2021-06-11 04:28:34,081 INFO L130 PetriNetUnfolder]: For 17988/17994 co-relation queries the response was YES. [2021-06-11 04:28:34,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6458 conditions, 647 events. 246/647 cut-off events. For 17988/17994 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 4456 event pairs, 0 based on Foata normal form. 8/655 useless extension candidates. Maximal degree in co-relation 6378. Up to 405 conditions per place. [2021-06-11 04:28:34,087 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 296 selfloop transitions, 55 changer transitions 0/358 dead transitions. [2021-06-11 04:28:34,087 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 358 transitions, 9394 flow [2021-06-11 04:28:34,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 04:28:34,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 04:28:34,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 794 transitions. [2021-06-11 04:28:34,088 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7089285714285715 [2021-06-11 04:28:34,088 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 794 transitions. [2021-06-11 04:28:34,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 794 transitions. [2021-06-11 04:28:34,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:34,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 794 transitions. [2021-06-11 04:28:34,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.4) internal successors, (794), 10 states have internal predecessors, (794), 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) [2021-06-11 04:28:34,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 states have internal predecessors, (1232), 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) [2021-06-11 04:28:34,090 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 states have internal predecessors, (1232), 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) [2021-06-11 04:28:34,090 INFO L185 Difference]: Start difference. First operand has 201 places, 346 transitions, 8476 flow. Second operand 10 states and 794 transitions. [2021-06-11 04:28:34,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 358 transitions, 9394 flow [2021-06-11 04:28:34,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 358 transitions, 9235 flow, removed 61 selfloop flow, removed 6 redundant places. [2021-06-11 04:28:34,166 INFO L241 Difference]: Finished difference. Result has 206 places, 348 transitions, 8540 flow [2021-06-11 04:28:34,166 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=8319, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8540, PETRI_PLACES=206, PETRI_TRANSITIONS=348} [2021-06-11 04:28:34,166 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 188 predicate places. [2021-06-11 04:28:34,166 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:34,166 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 206 places, 348 transitions, 8540 flow [2021-06-11 04:28:34,167 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 206 places, 348 transitions, 8540 flow [2021-06-11 04:28:34,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 206 places, 348 transitions, 8540 flow [2021-06-11 04:28:34,230 INFO L129 PetriNetUnfolder]: 246/648 cut-off events. [2021-06-11 04:28:34,230 INFO L130 PetriNetUnfolder]: For 15697/15697 co-relation queries the response was YES. [2021-06-11 04:28:34,233 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6011 conditions, 648 events. 246/648 cut-off events. For 15697/15697 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 4647 event pairs, 0 based on Foata normal form. 0/648 useless extension candidates. Maximal degree in co-relation 5931. Up to 279 conditions per place. [2021-06-11 04:28:34,238 INFO L151 LiptonReduction]: Number of co-enabled transitions 896 [2021-06-11 04:28:34,261 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:34,261 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:34,261 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 95 [2021-06-11 04:28:34,261 INFO L480 AbstractCegarLoop]: Abstraction has has 206 places, 348 transitions, 8540 flow [2021-06-11 04:28:34,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 78.0) internal successors, (1170), 15 states have internal predecessors, (1170), 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) [2021-06-11 04:28:34,261 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:34,261 INFO L263 CegarLoopForPetriNet]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:34,465 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:34,465 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:34,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:34,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1842442194, now seen corresponding path program 10 times [2021-06-11 04:28:34,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:34,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054236103] [2021-06-11 04:28:34,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:34,479 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:34,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,482 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:34,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:34,486 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-06-11 04:28:34,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:34,492 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-06-11 04:28:34,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:34,497 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-06-11 04:28:34,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:34,503 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-06-11 04:28:34,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:34,510 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:34,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,516 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:34,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054236103] [2021-06-11 04:28:34,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64978571] [2021-06-11 04:28:34,516 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:34,555 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 04:28:34,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:34,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-11 04:28:34,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:34,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:34,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:34,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:34,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:34,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:34,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:34,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:34,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:34,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:34,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:34,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:34,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:34,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:34,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:34,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:34,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:34,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:34,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:34,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:34,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:34,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:34,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:34,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:34,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:34,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:34,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:34,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:34,629 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-06-11 04:28:34,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:34,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:34,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:34,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:34,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:34,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:34,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:34,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:34,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:34,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:34,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:34,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:34,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:34,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:34,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:34,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:34,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:34,663 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:34,663 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:34,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:34,668 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:34,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:34,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 04:28:34,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062008447] [2021-06-11 04:28:34,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 04:28:34,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:34,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 04:28:34,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-06-11 04:28:34,669 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:34,670 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 348 transitions, 8540 flow. Second operand has 15 states, 15 states have (on average 78.0) internal successors, (1170), 15 states have internal predecessors, (1170), 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) [2021-06-11 04:28:34,670 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:34,670 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:34,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:34,853 INFO L129 PetriNetUnfolder]: 250/657 cut-off events. [2021-06-11 04:28:34,853 INFO L130 PetriNetUnfolder]: For 18299/18305 co-relation queries the response was YES. [2021-06-11 04:28:34,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6571 conditions, 657 events. 250/657 cut-off events. For 18299/18305 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 4552 event pairs, 0 based on Foata normal form. 8/665 useless extension candidates. Maximal degree in co-relation 6489. Up to 389 conditions per place. [2021-06-11 04:28:34,859 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 272 selfloop transitions, 80 changer transitions 0/359 dead transitions. [2021-06-11 04:28:34,859 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 359 transitions, 9436 flow [2021-06-11 04:28:34,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 04:28:34,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 04:28:34,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 954 transitions. [2021-06-11 04:28:34,860 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7098214285714286 [2021-06-11 04:28:34,860 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 954 transitions. [2021-06-11 04:28:34,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 954 transitions. [2021-06-11 04:28:34,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:34,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 954 transitions. [2021-06-11 04:28:34,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 79.5) internal successors, (954), 12 states have internal predecessors, (954), 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) [2021-06-11 04:28:34,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 112.0) internal successors, (1456), 13 states have internal predecessors, (1456), 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) [2021-06-11 04:28:34,862 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 112.0) internal successors, (1456), 13 states have internal predecessors, (1456), 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) [2021-06-11 04:28:34,862 INFO L185 Difference]: Start difference. First operand has 206 places, 348 transitions, 8540 flow. Second operand 12 states and 954 transitions. [2021-06-11 04:28:34,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 359 transitions, 9436 flow [2021-06-11 04:28:34,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 359 transitions, 9363 flow, removed 5 selfloop flow, removed 7 redundant places. [2021-06-11 04:28:34,945 INFO L241 Difference]: Finished difference. Result has 212 places, 352 transitions, 8784 flow [2021-06-11 04:28:34,945 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=8471, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=8784, PETRI_PLACES=212, PETRI_TRANSITIONS=352} [2021-06-11 04:28:34,945 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 194 predicate places. [2021-06-11 04:28:34,945 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:34,945 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 212 places, 352 transitions, 8784 flow [2021-06-11 04:28:34,946 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 212 places, 352 transitions, 8784 flow [2021-06-11 04:28:34,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 212 places, 352 transitions, 8784 flow [2021-06-11 04:28:35,011 INFO L129 PetriNetUnfolder]: 250/659 cut-off events. [2021-06-11 04:28:35,012 INFO L130 PetriNetUnfolder]: For 16607/16607 co-relation queries the response was YES. [2021-06-11 04:28:35,014 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6196 conditions, 659 events. 250/659 cut-off events. For 16607/16607 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 4733 event pairs, 0 based on Foata normal form. 0/659 useless extension candidates. Maximal degree in co-relation 6114. Up to 285 conditions per place. [2021-06-11 04:28:35,018 INFO L151 LiptonReduction]: Number of co-enabled transitions 908 [2021-06-11 04:28:35,041 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:35,042 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:35,042 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 97 [2021-06-11 04:28:35,042 INFO L480 AbstractCegarLoop]: Abstraction has has 212 places, 352 transitions, 8784 flow [2021-06-11 04:28:35,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 78.0) internal successors, (1170), 15 states have internal predecessors, (1170), 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) [2021-06-11 04:28:35,042 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:35,042 INFO L263 CegarLoopForPetriNet]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:35,244 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-06-11 04:28:35,245 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:35,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:35,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1843096914, now seen corresponding path program 11 times [2021-06-11 04:28:35,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:35,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113290512] [2021-06-11 04:28:35,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:35,254 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:35,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,257 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:35,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:35,262 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-06-11 04:28:35,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:35,267 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-06-11 04:28:35,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:35,273 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-06-11 04:28:35,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:35,279 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-06-11 04:28:35,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:35,289 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:35,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,295 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:35,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113290512] [2021-06-11 04:28:35,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142316794] [2021-06-11 04:28:35,296 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:35,331 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-11 04:28:35,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:35,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-11 04:28:35,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:35,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:35,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:35,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:35,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:35,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:35,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:35,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:35,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:35,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:35,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:35,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:35,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:35,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:35,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:35,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:35,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:35,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:35,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:35,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:35,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:35,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:35,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:35,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:35,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:35,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:35,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:35,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:35,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:35,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:35,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:35,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:35,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:35,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:35,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:35,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:35,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:35,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:35,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:35,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:35,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:35,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:35,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:35,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:35,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:35,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:35,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 04:28:35,425 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-06-11 04:28:35,425 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:35,426 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:35,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:35,431 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:35,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:35,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 04:28:35,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520993824] [2021-06-11 04:28:35,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 04:28:35,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:35,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 04:28:35,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-06-11 04:28:35,432 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:35,432 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 352 transitions, 8784 flow. Second operand has 15 states, 15 states have (on average 78.0) internal successors, (1170), 15 states have internal predecessors, (1170), 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) [2021-06-11 04:28:35,432 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:35,433 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:35,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:35,650 INFO L129 PetriNetUnfolder]: 254/668 cut-off events. [2021-06-11 04:28:35,650 INFO L130 PetriNetUnfolder]: For 18515/18521 co-relation queries the response was YES. [2021-06-11 04:28:35,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6792 conditions, 668 events. 254/668 cut-off events. For 18515/18521 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 4736 event pairs, 0 based on Foata normal form. 8/676 useless extension candidates. Maximal degree in co-relation 6708. Up to 387 conditions per place. [2021-06-11 04:28:35,656 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 265 selfloop transitions, 95 changer transitions 0/367 dead transitions. [2021-06-11 04:28:35,656 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 367 transitions, 9985 flow [2021-06-11 04:28:35,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-11 04:28:35,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-06-11 04:28:35,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1194 transitions. [2021-06-11 04:28:35,666 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7107142857142857 [2021-06-11 04:28:35,666 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1194 transitions. [2021-06-11 04:28:35,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1194 transitions. [2021-06-11 04:28:35,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:35,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1194 transitions. [2021-06-11 04:28:35,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 79.6) internal successors, (1194), 15 states have internal predecessors, (1194), 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) [2021-06-11 04:28:35,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 112.0) internal successors, (1792), 16 states have internal predecessors, (1792), 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) [2021-06-11 04:28:35,668 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 112.0) internal successors, (1792), 16 states have internal predecessors, (1792), 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) [2021-06-11 04:28:35,668 INFO L185 Difference]: Start difference. First operand has 212 places, 352 transitions, 8784 flow. Second operand 15 states and 1194 transitions. [2021-06-11 04:28:35,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 367 transitions, 9985 flow [2021-06-11 04:28:35,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 367 transitions, 9830 flow, removed 7 selfloop flow, removed 10 redundant places. [2021-06-11 04:28:35,753 INFO L241 Difference]: Finished difference. Result has 219 places, 361 transitions, 9276 flow [2021-06-11 04:28:35,753 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=8638, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=9276, PETRI_PLACES=219, PETRI_TRANSITIONS=361} [2021-06-11 04:28:35,753 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 201 predicate places. [2021-06-11 04:28:35,753 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:35,753 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 219 places, 361 transitions, 9276 flow [2021-06-11 04:28:35,753 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 219 places, 361 transitions, 9276 flow [2021-06-11 04:28:35,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 219 places, 361 transitions, 9276 flow [2021-06-11 04:28:35,830 INFO L129 PetriNetUnfolder]: 254/668 cut-off events. [2021-06-11 04:28:35,830 INFO L130 PetriNetUnfolder]: For 17451/17451 co-relation queries the response was YES. [2021-06-11 04:28:35,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6399 conditions, 668 events. 254/668 cut-off events. For 17451/17451 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 4784 event pairs, 0 based on Foata normal form. 0/668 useless extension candidates. Maximal degree in co-relation 6315. Up to 292 conditions per place. [2021-06-11 04:28:35,837 INFO L151 LiptonReduction]: Number of co-enabled transitions 934 [2021-06-11 04:28:35,860 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:35,861 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:35,861 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 108 [2021-06-11 04:28:35,861 INFO L480 AbstractCegarLoop]: Abstraction has has 219 places, 361 transitions, 9276 flow [2021-06-11 04:28:35,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 78.0) internal successors, (1170), 15 states have internal predecessors, (1170), 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) [2021-06-11 04:28:35,861 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:35,861 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:36,061 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:36,062 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:36,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:36,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1240550953, now seen corresponding path program 19 times [2021-06-11 04:28:36,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:36,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332119706] [2021-06-11 04:28:36,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:36,073 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:36,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:36,077 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-06-11 04:28:36,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:36,081 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-06-11 04:28:36,081 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-06-11 04:28:36,091 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-06-11 04:28:36,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:36,097 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-06-11 04:28:36,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:36,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:36,109 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:36,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:36,116 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:36,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332119706] [2021-06-11 04:28:36,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223672662] [2021-06-11 04:28:36,116 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:36,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-11 04:28:36,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:36,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:36,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:36,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:36,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:36,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:36,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:36,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:36,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:36,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:36,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:36,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:36,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:36,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:36,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:36,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:36,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:36,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:36,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:36,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:36,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:36,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:36,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:36,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:36,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:36,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:36,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:36,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:36,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:36,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:36,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:36,190 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 04:28:36,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 04:28:36,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 04:28:36,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:36,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:36,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:36,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:36,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:36,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:36,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:36,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:36,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:36,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:36,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:36,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:36,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:36,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:36,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:36,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:36,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:36,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:36,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:36,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:36,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:36,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:36,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:36,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:36,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:36,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:36,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,242 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-06-11 04:28:36,242 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-06-11 04:28:36,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:36,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:36,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:36,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 04:28:36,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:36,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:36,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 04:28:36,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:36,260 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:36,260 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:36,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:36,281 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:36,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:36,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-06-11 04:28:36,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777504368] [2021-06-11 04:28:36,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-11 04:28:36,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:36,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-11 04:28:36,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-06-11 04:28:36,283 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:36,283 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 361 transitions, 9276 flow. Second operand has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:36,283 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:36,283 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:36,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:36,575 INFO L129 PetriNetUnfolder]: 260/686 cut-off events. [2021-06-11 04:28:36,576 INFO L130 PetriNetUnfolder]: For 18032/18038 co-relation queries the response was YES. [2021-06-11 04:28:36,578 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7054 conditions, 686 events. 260/686 cut-off events. For 18032/18038 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 4832 event pairs, 0 based on Foata normal form. 7/693 useless extension candidates. Maximal degree in co-relation 6968. Up to 398 conditions per place. [2021-06-11 04:28:36,581 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 303 selfloop transitions, 87 changer transitions 0/397 dead transitions. [2021-06-11 04:28:36,581 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 397 transitions, 10735 flow [2021-06-11 04:28:36,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-11 04:28:36,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-11 04:28:36,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1268 transitions. [2021-06-11 04:28:36,593 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7075892857142857 [2021-06-11 04:28:36,594 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1268 transitions. [2021-06-11 04:28:36,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1268 transitions. [2021-06-11 04:28:36,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:36,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1268 transitions. [2021-06-11 04:28:36,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 79.25) internal successors, (1268), 16 states have internal predecessors, (1268), 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) [2021-06-11 04:28:36,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 112.0) internal successors, (1904), 17 states have internal predecessors, (1904), 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) [2021-06-11 04:28:36,596 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 112.0) internal successors, (1904), 17 states have internal predecessors, (1904), 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) [2021-06-11 04:28:36,596 INFO L185 Difference]: Start difference. First operand has 219 places, 361 transitions, 9276 flow. Second operand 16 states and 1268 transitions. [2021-06-11 04:28:36,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 397 transitions, 10735 flow [2021-06-11 04:28:36,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 397 transitions, 10390 flow, removed 141 selfloop flow, removed 10 redundant places. [2021-06-11 04:28:36,693 INFO L241 Difference]: Finished difference. Result has 228 places, 374 transitions, 9538 flow [2021-06-11 04:28:36,693 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=8931, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9538, PETRI_PLACES=228, PETRI_TRANSITIONS=374} [2021-06-11 04:28:36,693 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 210 predicate places. [2021-06-11 04:28:36,693 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:36,693 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 374 transitions, 9538 flow [2021-06-11 04:28:36,694 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 374 transitions, 9538 flow [2021-06-11 04:28:36,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 228 places, 374 transitions, 9538 flow [2021-06-11 04:28:36,765 INFO L129 PetriNetUnfolder]: 260/686 cut-off events. [2021-06-11 04:28:36,765 INFO L130 PetriNetUnfolder]: For 18851/18851 co-relation queries the response was YES. [2021-06-11 04:28:36,768 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6556 conditions, 686 events. 260/686 cut-off events. For 18851/18851 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 4963 event pairs, 0 based on Foata normal form. 0/686 useless extension candidates. Maximal degree in co-relation 6467. Up to 293 conditions per place. [2021-06-11 04:28:36,773 INFO L151 LiptonReduction]: Number of co-enabled transitions 960 [2021-06-11 04:28:36,798 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:36,799 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:36,799 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 106 [2021-06-11 04:28:36,799 INFO L480 AbstractCegarLoop]: Abstraction has has 228 places, 374 transitions, 9538 flow [2021-06-11 04:28:36,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:36,799 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:36,799 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:37,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-06-11 04:28:37,012 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:37,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:37,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1273504529, now seen corresponding path program 20 times [2021-06-11 04:28:37,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:37,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095981218] [2021-06-11 04:28:37,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:37,031 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:37,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,035 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-06-11 04:28:37,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:37,039 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-06-11 04:28:37,039 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-06-11 04:28:37,049 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-06-11 04:28:37,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:37,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:37,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:37,066 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:37,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:37,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095981218] [2021-06-11 04:28:37,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377347253] [2021-06-11 04:28:37,073 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:37,132 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 04:28:37,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:37,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-11 04:28:37,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:37,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:37,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:37,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:37,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:37,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:37,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:37,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:37,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:37,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:37,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:37,164 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 04:28:37,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 04:28:37,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 04:28:37,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:37,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:37,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:37,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:37,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:37,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:37,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:37,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:37,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:37,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:37,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:37,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:37,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:37,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:37,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:37,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:37,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:37,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:37,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:37,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:37,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:37,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:37,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:37,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:37,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:37,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:37,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:37,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:37,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:37,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:37,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:37,226 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:37,227 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:37,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:37,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:37,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:37,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-06-11 04:28:37,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332232026] [2021-06-11 04:28:37,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-11 04:28:37,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:37,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-11 04:28:37,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2021-06-11 04:28:37,243 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:37,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 374 transitions, 9538 flow. Second operand has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:37,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:37,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:37,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:37,525 INFO L129 PetriNetUnfolder]: 264/698 cut-off events. [2021-06-11 04:28:37,525 INFO L130 PetriNetUnfolder]: For 19623/19629 co-relation queries the response was YES. [2021-06-11 04:28:37,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7173 conditions, 698 events. 264/698 cut-off events. For 19623/19629 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 4941 event pairs, 0 based on Foata normal form. 7/705 useless extension candidates. Maximal degree in co-relation 7082. Up to 404 conditions per place. [2021-06-11 04:28:37,536 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 306 selfloop transitions, 90 changer transitions 0/403 dead transitions. [2021-06-11 04:28:37,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 403 transitions, 10873 flow [2021-06-11 04:28:37,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-11 04:28:37,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-11 04:28:37,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1268 transitions. [2021-06-11 04:28:37,540 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7075892857142857 [2021-06-11 04:28:37,540 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1268 transitions. [2021-06-11 04:28:37,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1268 transitions. [2021-06-11 04:28:37,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:37,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1268 transitions. [2021-06-11 04:28:37,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 79.25) internal successors, (1268), 16 states have internal predecessors, (1268), 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) [2021-06-11 04:28:37,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 112.0) internal successors, (1904), 17 states have internal predecessors, (1904), 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) [2021-06-11 04:28:37,547 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 112.0) internal successors, (1904), 17 states have internal predecessors, (1904), 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) [2021-06-11 04:28:37,547 INFO L185 Difference]: Start difference. First operand has 228 places, 374 transitions, 9538 flow. Second operand 16 states and 1268 transitions. [2021-06-11 04:28:37,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 403 transitions, 10873 flow [2021-06-11 04:28:37,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 403 transitions, 10780 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-06-11 04:28:37,649 INFO L241 Difference]: Finished difference. Result has 237 places, 383 transitions, 9963 flow [2021-06-11 04:28:37,649 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=9447, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9963, PETRI_PLACES=237, PETRI_TRANSITIONS=383} [2021-06-11 04:28:37,649 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 219 predicate places. [2021-06-11 04:28:37,650 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:37,650 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 237 places, 383 transitions, 9963 flow [2021-06-11 04:28:37,650 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 237 places, 383 transitions, 9963 flow [2021-06-11 04:28:37,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 237 places, 383 transitions, 9963 flow [2021-06-11 04:28:37,724 INFO L129 PetriNetUnfolder]: 264/697 cut-off events. [2021-06-11 04:28:37,725 INFO L130 PetriNetUnfolder]: For 19984/19984 co-relation queries the response was YES. [2021-06-11 04:28:37,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6796 conditions, 697 events. 264/697 cut-off events. For 19984/19984 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 5078 event pairs, 0 based on Foata normal form. 0/697 useless extension candidates. Maximal degree in co-relation 6704. Up to 299 conditions per place. [2021-06-11 04:28:37,732 INFO L151 LiptonReduction]: Number of co-enabled transitions 980 [2021-06-11 04:28:37,759 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:37,759 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:37,759 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 109 [2021-06-11 04:28:37,759 INFO L480 AbstractCegarLoop]: Abstraction has has 237 places, 383 transitions, 9963 flow [2021-06-11 04:28:37,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:37,760 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:37,760 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:37,960 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:37,960 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:37,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:37,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1525879541, now seen corresponding path program 21 times [2021-06-11 04:28:37,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:37,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958011469] [2021-06-11 04:28:37,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:37,975 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:37,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:37,979 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-06-11 04:28:37,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:37,984 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-06-11 04:28:37,984 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-06-11 04:28:37,995 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-06-11 04:28:37,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:38,002 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-06-11 04:28:38,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:38,010 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-06-11 04:28:38,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:38,018 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:38,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:38,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958011469] [2021-06-11 04:28:38,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001462275] [2021-06-11 04:28:38,026 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:38,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-11 04:28:38,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:38,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-11 04:28:38,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:38,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:38,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:38,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:38,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:38,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:38,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:38,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:38,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:38,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:38,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:38,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:38,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:38,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:38,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:38,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:38,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:38,129 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 04:28:38,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 04:28:38,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 04:28:38,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:38,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:38,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:38,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:38,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:38,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:38,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:38,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:38,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:38,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:38,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:38,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:38,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:38,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:38,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:38,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:38,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:38,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:38,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:38,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:38,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:38,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:38,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:38,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:38,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:38,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:38,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,192 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:38,192 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:38,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:38,205 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:38,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:38,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-06-11 04:28:38,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780208955] [2021-06-11 04:28:38,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-11 04:28:38,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:38,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-11 04:28:38,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2021-06-11 04:28:38,206 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:38,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 383 transitions, 9963 flow. Second operand has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:38,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:38,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:38,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:38,361 INFO L129 PetriNetUnfolder]: 265/700 cut-off events. [2021-06-11 04:28:38,361 INFO L130 PetriNetUnfolder]: For 21195/21201 co-relation queries the response was YES. [2021-06-11 04:28:38,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7334 conditions, 700 events. 265/700 cut-off events. For 21195/21201 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 4967 event pairs, 0 based on Foata normal form. 7/707 useless extension candidates. Maximal degree in co-relation 7240. Up to 448 conditions per place. [2021-06-11 04:28:38,367 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 338 selfloop transitions, 49 changer transitions 0/394 dead transitions. [2021-06-11 04:28:38,367 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 394 transitions, 10938 flow [2021-06-11 04:28:38,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 04:28:38,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 04:28:38,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 794 transitions. [2021-06-11 04:28:38,368 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7089285714285715 [2021-06-11 04:28:38,368 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 794 transitions. [2021-06-11 04:28:38,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 794 transitions. [2021-06-11 04:28:38,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:38,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 794 transitions. [2021-06-11 04:28:38,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.4) internal successors, (794), 10 states have internal predecessors, (794), 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) [2021-06-11 04:28:38,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 states have internal predecessors, (1232), 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) [2021-06-11 04:28:38,369 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 states have internal predecessors, (1232), 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) [2021-06-11 04:28:38,369 INFO L185 Difference]: Start difference. First operand has 237 places, 383 transitions, 9963 flow. Second operand 10 states and 794 transitions. [2021-06-11 04:28:38,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 394 transitions, 10938 flow [2021-06-11 04:28:38,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 394 transitions, 10773 flow, removed 27 selfloop flow, removed 12 redundant places. [2021-06-11 04:28:38,466 INFO L241 Difference]: Finished difference. Result has 236 places, 385 transitions, 10011 flow [2021-06-11 04:28:38,466 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=9798, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10011, PETRI_PLACES=236, PETRI_TRANSITIONS=385} [2021-06-11 04:28:38,466 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 218 predicate places. [2021-06-11 04:28:38,467 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:38,467 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 236 places, 385 transitions, 10011 flow [2021-06-11 04:28:38,467 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 236 places, 385 transitions, 10011 flow [2021-06-11 04:28:38,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 236 places, 385 transitions, 10011 flow [2021-06-11 04:28:38,542 INFO L129 PetriNetUnfolder]: 265/701 cut-off events. [2021-06-11 04:28:38,543 INFO L130 PetriNetUnfolder]: For 20916/20916 co-relation queries the response was YES. [2021-06-11 04:28:38,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6844 conditions, 701 events. 265/701 cut-off events. For 20916/20916 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 5142 event pairs, 0 based on Foata normal form. 0/701 useless extension candidates. Maximal degree in co-relation 6750. Up to 299 conditions per place. [2021-06-11 04:28:38,550 INFO L151 LiptonReduction]: Number of co-enabled transitions 986 [2021-06-11 04:28:38,578 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:38,578 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:38,578 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 111 [2021-06-11 04:28:38,578 INFO L480 AbstractCegarLoop]: Abstraction has has 236 places, 385 transitions, 10011 flow [2021-06-11 04:28:38,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:38,579 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:38,579 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:38,781 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-06-11 04:28:38,781 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:38,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:38,781 INFO L82 PathProgramCache]: Analyzing trace with hash -673216561, now seen corresponding path program 22 times [2021-06-11 04:28:38,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:38,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408762431] [2021-06-11 04:28:38,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:38,792 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:38,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,795 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:38,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:38,799 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-06-11 04:28:38,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:38,804 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-06-11 04:28:38,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:38,809 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-06-11 04:28:38,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:38,816 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-11 04:28:38,816 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-06-11 04:28:38,826 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:38,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,832 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:38,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408762431] [2021-06-11 04:28:38,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773256074] [2021-06-11 04:28:38,832 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:38,881 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 04:28:38,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:38,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-11 04:28:38,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:38,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:38,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:38,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:38,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:38,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:38,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:38,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:38,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:38,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:38,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:38,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:38,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:38,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:38,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:38,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:38,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:38,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:38,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:38,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:38,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:38,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:38,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:38,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:38,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:38,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:38,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:38,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:38,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:38,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:38,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,960 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-06-11 04:28:38,960 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-06-11 04:28:38,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:38,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 04:28:38,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 04:28:38,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 04:28:38,974 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-06-11 04:28:38,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,976 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-11 04:28:38,977 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,978 INFO L147 QuantifierPusher]: treesize reduction -7, result has 113.2 percent of original size 60 [2021-06-11 04:28:38,979 INFO L147 QuantifierPusher]: treesize reduction -7, result has 113.2 percent of original size 60 [2021-06-11 04:28:38,979 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-11 04:28:38,980 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:38,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:38,980 INFO L142 QuantifierPusher]: treesize reduction -7, result has 110.4 percent of original size [2021-06-11 04:28:38,997 INFO L147 QuantifierPusher]: treesize reduction 376, result has 58.4 percent of original size 528 [2021-06-11 04:28:38,999 INFO L147 QuantifierPusher]: treesize reduction 376, result has 58.4 percent of original size 528 [2021-06-11 04:28:39,002 INFO L142 QuantifierPusher]: treesize reduction 376, result has 58.4 percent of original size [2021-06-11 04:28:39,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 528 [2021-06-11 04:28:39,068 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:39,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:39,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-06-11 04:28:39,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050946849] [2021-06-11 04:28:39,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-11 04:28:39,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:39,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-11 04:28:39,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2021-06-11 04:28:39,071 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:39,071 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 385 transitions, 10011 flow. Second operand has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:39,071 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:39,071 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:39,071 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:39,431 INFO L129 PetriNetUnfolder]: 278/735 cut-off events. [2021-06-11 04:28:39,431 INFO L130 PetriNetUnfolder]: For 28612/28618 co-relation queries the response was YES. [2021-06-11 04:28:39,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7856 conditions, 735 events. 278/735 cut-off events. For 28612/28618 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 5266 event pairs, 0 based on Foata normal form. 11/746 useless extension candidates. Maximal degree in co-relation 7760. Up to 329 conditions per place. [2021-06-11 04:28:39,438 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 178 selfloop transitions, 227 changer transitions 0/412 dead transitions. [2021-06-11 04:28:39,438 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 412 transitions, 11775 flow [2021-06-11 04:28:39,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-11 04:28:39,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-11 04:28:39,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1514 transitions. [2021-06-11 04:28:39,439 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7114661654135338 [2021-06-11 04:28:39,439 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1514 transitions. [2021-06-11 04:28:39,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1514 transitions. [2021-06-11 04:28:39,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:39,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1514 transitions. [2021-06-11 04:28:39,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 79.6842105263158) internal successors, (1514), 19 states have internal predecessors, (1514), 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) [2021-06-11 04:28:39,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 112.0) internal successors, (2240), 20 states have internal predecessors, (2240), 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) [2021-06-11 04:28:39,442 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 112.0) internal successors, (2240), 20 states have internal predecessors, (2240), 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) [2021-06-11 04:28:39,442 INFO L185 Difference]: Start difference. First operand has 236 places, 385 transitions, 10011 flow. Second operand 19 states and 1514 transitions. [2021-06-11 04:28:39,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 412 transitions, 11775 flow [2021-06-11 04:28:39,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 412 transitions, 11718 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-06-11 04:28:39,542 INFO L241 Difference]: Finished difference. Result has 253 places, 407 transitions, 11533 flow [2021-06-11 04:28:39,542 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=9956, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=11533, PETRI_PLACES=253, PETRI_TRANSITIONS=407} [2021-06-11 04:28:39,542 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 235 predicate places. [2021-06-11 04:28:39,542 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:39,542 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 253 places, 407 transitions, 11533 flow [2021-06-11 04:28:39,543 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 253 places, 407 transitions, 11533 flow [2021-06-11 04:28:39,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 253 places, 407 transitions, 11533 flow [2021-06-11 04:28:39,630 INFO L129 PetriNetUnfolder]: 278/736 cut-off events. [2021-06-11 04:28:39,630 INFO L130 PetriNetUnfolder]: For 25091/25091 co-relation queries the response was YES. [2021-06-11 04:28:39,633 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7750 conditions, 736 events. 278/736 cut-off events. For 25091/25091 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 5429 event pairs, 0 based on Foata normal form. 0/736 useless extension candidates. Maximal degree in co-relation 7651. Up to 323 conditions per place. [2021-06-11 04:28:39,639 INFO L151 LiptonReduction]: Number of co-enabled transitions 1036 [2021-06-11 04:28:39,671 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:39,671 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:39,671 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 129 [2021-06-11 04:28:39,671 INFO L480 AbstractCegarLoop]: Abstraction has has 253 places, 407 transitions, 11533 flow [2021-06-11 04:28:39,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:39,671 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:39,672 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:39,872 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:39,872 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:39,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:39,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1198708191, now seen corresponding path program 23 times [2021-06-11 04:28:39,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:39,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889172849] [2021-06-11 04:28:39,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:39,884 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:39,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,888 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:39,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:39,892 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-06-11 04:28:39,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:39,897 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-11 04:28:39,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:39,907 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-06-11 04:28:39,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:39,914 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-06-11 04:28:39,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:39,921 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:39,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,928 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:39,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889172849] [2021-06-11 04:28:39,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300783947] [2021-06-11 04:28:39,929 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:39,969 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 04:28:39,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:39,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-11 04:28:39,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:39,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:39,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:39,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:39,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:39,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:39,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:39,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:39,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:39,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:39,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:39,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:39,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:40,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:40,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:40,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:40,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:40,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:40,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:40,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:40,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:40,015 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-06-11 04:28:40,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 04:28:40,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 04:28:40,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:40,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:40,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:40,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:40,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:40,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:40,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:40,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:40,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:40,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:40,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,037 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-06-11 04:28:40,037 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-06-11 04:28:40,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:40,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:40,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:40,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 04:28:40,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:40,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:40,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 04:28:40,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 04:28:40,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 04:28:40,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:40,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:40,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 04:28:40,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:40,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 04:28:40,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 04:28:40,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:40,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:40,078 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:40,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:40,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-06-11 04:28:40,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270993302] [2021-06-11 04:28:40,079 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-11 04:28:40,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:40,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-11 04:28:40,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2021-06-11 04:28:40,079 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:40,080 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 407 transitions, 11533 flow. Second operand has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:40,080 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:40,080 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:40,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:40,368 INFO L129 PetriNetUnfolder]: 286/758 cut-off events. [2021-06-11 04:28:40,368 INFO L130 PetriNetUnfolder]: For 27504/27510 co-relation queries the response was YES. [2021-06-11 04:28:40,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8581 conditions, 758 events. 286/758 cut-off events. For 27504/27510 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 5484 event pairs, 0 based on Foata normal form. 7/765 useless extension candidates. Maximal degree in co-relation 8480. Up to 440 conditions per place. [2021-06-11 04:28:40,375 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 329 selfloop transitions, 99 changer transitions 0/435 dead transitions. [2021-06-11 04:28:40,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 435 transitions, 13138 flow [2021-06-11 04:28:40,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-11 04:28:40,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-11 04:28:40,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1269 transitions. [2021-06-11 04:28:40,376 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7081473214285714 [2021-06-11 04:28:40,376 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1269 transitions. [2021-06-11 04:28:40,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1269 transitions. [2021-06-11 04:28:40,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:40,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1269 transitions. [2021-06-11 04:28:40,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 79.3125) internal successors, (1269), 16 states have internal predecessors, (1269), 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) [2021-06-11 04:28:40,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 112.0) internal successors, (1904), 17 states have internal predecessors, (1904), 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) [2021-06-11 04:28:40,379 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 112.0) internal successors, (1904), 17 states have internal predecessors, (1904), 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) [2021-06-11 04:28:40,379 INFO L185 Difference]: Start difference. First operand has 253 places, 407 transitions, 11533 flow. Second operand 16 states and 1269 transitions. [2021-06-11 04:28:40,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 435 transitions, 13138 flow [2021-06-11 04:28:40,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 435 transitions, 12669 flow, removed 184 selfloop flow, removed 11 redundant places. [2021-06-11 04:28:40,542 INFO L241 Difference]: Finished difference. Result has 260 places, 418 transitions, 11821 flow [2021-06-11 04:28:40,542 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=11124, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=11821, PETRI_PLACES=260, PETRI_TRANSITIONS=418} [2021-06-11 04:28:40,542 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 242 predicate places. [2021-06-11 04:28:40,542 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:40,542 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 260 places, 418 transitions, 11821 flow [2021-06-11 04:28:40,542 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 260 places, 418 transitions, 11821 flow [2021-06-11 04:28:40,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 260 places, 418 transitions, 11821 flow [2021-06-11 04:28:40,633 INFO L129 PetriNetUnfolder]: 286/759 cut-off events. [2021-06-11 04:28:40,633 INFO L130 PetriNetUnfolder]: For 25674/25674 co-relation queries the response was YES. [2021-06-11 04:28:40,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7977 conditions, 759 events. 286/759 cut-off events. For 25674/25674 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 5654 event pairs, 0 based on Foata normal form. 0/759 useless extension candidates. Maximal degree in co-relation 7875. Up to 337 conditions per place. [2021-06-11 04:28:40,642 INFO L151 LiptonReduction]: Number of co-enabled transitions 1058 [2021-06-11 04:28:40,675 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:40,675 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:40,675 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 133 [2021-06-11 04:28:40,676 INFO L480 AbstractCegarLoop]: Abstraction has has 260 places, 418 transitions, 11821 flow [2021-06-11 04:28:40,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:40,676 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:40,676 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:40,876 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-06-11 04:28:40,876 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:40,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:40,877 INFO L82 PathProgramCache]: Analyzing trace with hash 205306068, now seen corresponding path program 24 times [2021-06-11 04:28:40,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:40,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710388413] [2021-06-11 04:28:40,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:40,891 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:40,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:40,895 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:40,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:40,899 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-06-11 04:28:40,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:40,905 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-11 04:28:40,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:40,914 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-06-11 04:28:40,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:40,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:40,929 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-06-11 04:28:40,929 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-06-11 04:28:40,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:40,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710388413] [2021-06-11 04:28:40,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461480010] [2021-06-11 04:28:40,940 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:40,983 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-11 04:28:40,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:40,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-11 04:28:40,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:40,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:40,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:40,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:40,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:40,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:40,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:40,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:40,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:40,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:40,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:40,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:40,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:40,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:40,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:40,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:40,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:40,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:40,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:40,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:40,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:40,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:41,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:41,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:41,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:41,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:41,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:41,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:41,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:41,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:41,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:41,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:41,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:41,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:41,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:41,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:41,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:41,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:41,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:41,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:41,026 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-06-11 04:28:41,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 04:28:41,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 04:28:41,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:41,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:41,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:41,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:41,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:41,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:41,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:41,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:41,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:41,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:41,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,047 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-06-11 04:28:41,048 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-06-11 04:28:41,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:41,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:41,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:41,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 04:28:41,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:41,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:41,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 04:28:41,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,061 INFO L147 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size 23 [2021-06-11 04:28:41,061 INFO L142 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size [2021-06-11 04:28:41,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 04:28:41,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:41,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 04:28:41,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-11 04:28:41,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:41,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 04:28:41,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-11 04:28:41,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:41,082 INFO L147 QuantifierPusher]: treesize reduction -2, result has 106.7 percent of original size 32 [2021-06-11 04:28:41,082 INFO L142 QuantifierPusher]: treesize reduction -2, result has 106.7 percent of original size [2021-06-11 04:28:41,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 04:28:41,101 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:41,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:41,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-06-11 04:28:41,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961034687] [2021-06-11 04:28:41,102 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-11 04:28:41,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:41,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-11 04:28:41,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2021-06-11 04:28:41,103 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:41,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 418 transitions, 11821 flow. Second operand has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:41,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:41,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:41,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:41,405 INFO L129 PetriNetUnfolder]: 291/771 cut-off events. [2021-06-11 04:28:41,405 INFO L130 PetriNetUnfolder]: For 28145/28151 co-relation queries the response was YES. [2021-06-11 04:28:41,409 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8730 conditions, 771 events. 291/771 cut-off events. For 28145/28151 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 5608 event pairs, 0 based on Foata normal form. 7/778 useless extension candidates. Maximal degree in co-relation 8626. Up to 435 conditions per place. [2021-06-11 04:28:41,412 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 324 selfloop transitions, 112 changer transitions 0/443 dead transitions. [2021-06-11 04:28:41,412 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 443 transitions, 13326 flow [2021-06-11 04:28:41,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-11 04:28:41,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-06-11 04:28:41,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1190 transitions. [2021-06-11 04:28:41,413 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2021-06-11 04:28:41,413 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1190 transitions. [2021-06-11 04:28:41,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1190 transitions. [2021-06-11 04:28:41,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:41,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1190 transitions. [2021-06-11 04:28:41,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 79.33333333333333) internal successors, (1190), 15 states have internal predecessors, (1190), 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) [2021-06-11 04:28:41,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 112.0) internal successors, (1792), 16 states have internal predecessors, (1792), 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) [2021-06-11 04:28:41,416 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 112.0) internal successors, (1792), 16 states have internal predecessors, (1792), 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) [2021-06-11 04:28:41,416 INFO L185 Difference]: Start difference. First operand has 260 places, 418 transitions, 11821 flow. Second operand 15 states and 1190 transitions. [2021-06-11 04:28:41,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 443 transitions, 13326 flow [2021-06-11 04:28:41,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 443 transitions, 13187 flow, removed 27 selfloop flow, removed 8 redundant places. [2021-06-11 04:28:41,580 INFO L241 Difference]: Finished difference. Result has 269 places, 425 transitions, 12357 flow [2021-06-11 04:28:41,581 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=11682, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12357, PETRI_PLACES=269, PETRI_TRANSITIONS=425} [2021-06-11 04:28:41,581 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 251 predicate places. [2021-06-11 04:28:41,581 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:41,581 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 269 places, 425 transitions, 12357 flow [2021-06-11 04:28:41,581 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 269 places, 425 transitions, 12357 flow [2021-06-11 04:28:41,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 269 places, 425 transitions, 12357 flow [2021-06-11 04:28:41,679 INFO L129 PetriNetUnfolder]: 291/773 cut-off events. [2021-06-11 04:28:41,679 INFO L130 PetriNetUnfolder]: For 28105/28105 co-relation queries the response was YES. [2021-06-11 04:28:41,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8308 conditions, 773 events. 291/773 cut-off events. For 28105/28105 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 5779 event pairs, 0 based on Foata normal form. 0/773 useless extension candidates. Maximal degree in co-relation 8203. Up to 341 conditions per place. [2021-06-11 04:28:41,689 INFO L151 LiptonReduction]: Number of co-enabled transitions 1074 [2021-06-11 04:28:41,724 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:41,724 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:41,724 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 143 [2021-06-11 04:28:41,724 INFO L480 AbstractCegarLoop]: Abstraction has has 269 places, 425 transitions, 12357 flow [2021-06-11 04:28:41,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:41,725 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:41,725 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:41,939 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-06-11 04:28:41,939 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:41,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:41,939 INFO L82 PathProgramCache]: Analyzing trace with hash 530354987, now seen corresponding path program 25 times [2021-06-11 04:28:41,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:41,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094229277] [2021-06-11 04:28:41,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:41,952 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:41,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:41,955 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:41,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:41,959 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-06-11 04:28:41,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:41,964 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-06-11 04:28:41,964 INFO L147 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size 11 [2021-06-11 04:28:41,973 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 04:28:41,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:41,979 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-11 04:28:41,979 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-06-11 04:28:41,988 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:41,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:41,994 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:41,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094229277] [2021-06-11 04:28:41,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044915601] [2021-06-11 04:28:41,994 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:42,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-11 04:28:42,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:42,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:42,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:42,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:42,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:42,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:42,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:42,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:42,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:42,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:42,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:42,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:42,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:42,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:42,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:42,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:42,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:42,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:42,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:42,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:42,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:42,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:42,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:42,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:42,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:42,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:42,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:42,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:42,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:42,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:42,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:42,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:42,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:42,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:42,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:42,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:42,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:42,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:42,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:42,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:42,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:42,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:42,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:42,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:42,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:42,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:42,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:42,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,083 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-06-11 04:28:42,083 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-06-11 04:28:42,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:42,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:42,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:42,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 04:28:42,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:42,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:42,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 04:28:42,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,098 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size 20 [2021-06-11 04:28:42,098 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size [2021-06-11 04:28:42,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 04:28:42,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:42,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 04:28:42,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 04:28:42,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:42,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 04:28:42,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 04:28:42,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,118 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size 21 [2021-06-11 04:28:42,118 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size [2021-06-11 04:28:42,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:42,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:42,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:42,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 04:28:42,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 04:28:42,134 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-06-11 04:28:42,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:42,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,135 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-11 04:28:42,136 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:42,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,138 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.6 percent of original size 19 [2021-06-11 04:28:42,139 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.6 percent of original size 19 [2021-06-11 04:28:42,139 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-11 04:28:42,139 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:42,140 INFO L142 QuantifierPusher]: treesize reduction -1, result has 103.0 percent of original size [2021-06-11 04:28:42,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:42,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:42,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:42,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:42,154 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:42,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:42,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-06-11 04:28:42,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862971395] [2021-06-11 04:28:42,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-11 04:28:42,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:42,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-11 04:28:42,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2021-06-11 04:28:42,156 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:42,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 425 transitions, 12357 flow. Second operand has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:42,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:42,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:42,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:42,665 INFO L129 PetriNetUnfolder]: 316/841 cut-off events. [2021-06-11 04:28:42,665 INFO L130 PetriNetUnfolder]: For 38678/38684 co-relation queries the response was YES. [2021-06-11 04:28:42,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9779 conditions, 841 events. 316/841 cut-off events. For 38678/38684 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 6214 event pairs, 0 based on Foata normal form. 11/852 useless extension candidates. Maximal degree in co-relation 9672. Up to 389 conditions per place. [2021-06-11 04:28:42,673 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 105 selfloop transitions, 356 changer transitions 0/468 dead transitions. [2021-06-11 04:28:42,673 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 468 transitions, 14805 flow [2021-06-11 04:28:42,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-11 04:28:42,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-06-11 04:28:42,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 1991 transitions. [2021-06-11 04:28:42,674 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7110714285714286 [2021-06-11 04:28:42,674 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 1991 transitions. [2021-06-11 04:28:42,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 1991 transitions. [2021-06-11 04:28:42,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:42,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 1991 transitions. [2021-06-11 04:28:42,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 79.64) internal successors, (1991), 25 states have internal predecessors, (1991), 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) [2021-06-11 04:28:42,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 112.0) internal successors, (2912), 26 states have internal predecessors, (2912), 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) [2021-06-11 04:28:42,678 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 112.0) internal successors, (2912), 26 states have internal predecessors, (2912), 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) [2021-06-11 04:28:42,678 INFO L185 Difference]: Start difference. First operand has 269 places, 425 transitions, 12357 flow. Second operand 25 states and 1991 transitions. [2021-06-11 04:28:42,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 468 transitions, 14805 flow [2021-06-11 04:28:42,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 468 transitions, 14673 flow, removed 5 selfloop flow, removed 11 redundant places. [2021-06-11 04:28:42,844 INFO L241 Difference]: Finished difference. Result has 287 places, 463 transitions, 14720 flow [2021-06-11 04:28:42,844 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=12235, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=326, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=14720, PETRI_PLACES=287, PETRI_TRANSITIONS=463} [2021-06-11 04:28:42,844 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 269 predicate places. [2021-06-11 04:28:42,844 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:42,844 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 287 places, 463 transitions, 14720 flow [2021-06-11 04:28:42,845 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 287 places, 463 transitions, 14720 flow [2021-06-11 04:28:42,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 287 places, 463 transitions, 14720 flow [2021-06-11 04:28:42,958 INFO L129 PetriNetUnfolder]: 316/844 cut-off events. [2021-06-11 04:28:42,959 INFO L130 PetriNetUnfolder]: For 33887/33887 co-relation queries the response was YES. [2021-06-11 04:28:42,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9780 conditions, 844 events. 316/844 cut-off events. For 33887/33887 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 6421 event pairs, 0 based on Foata normal form. 0/844 useless extension candidates. Maximal degree in co-relation 9670. Up to 389 conditions per place. [2021-06-11 04:28:42,970 INFO L151 LiptonReduction]: Number of co-enabled transitions 1154 [2021-06-11 04:28:43,011 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:43,011 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:43,011 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 167 [2021-06-11 04:28:43,011 INFO L480 AbstractCegarLoop]: Abstraction has has 287 places, 463 transitions, 14720 flow [2021-06-11 04:28:43,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:43,012 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:43,012 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:43,212 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-06-11 04:28:43,212 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:43,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:43,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1587206284, now seen corresponding path program 26 times [2021-06-11 04:28:43,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:43,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275015301] [2021-06-11 04:28:43,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:43,225 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:43,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:43,229 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-06-11 04:28:43,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,233 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-06-11 04:28:43,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:43,237 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-06-11 04:28:43,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:43,243 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-06-11 04:28:43,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:43,249 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-06-11 04:28:43,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:43,256 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:43,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:43,262 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:43,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275015301] [2021-06-11 04:28:43,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763136826] [2021-06-11 04:28:43,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:43,302 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 04:28:43,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:43,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-11 04:28:43,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:43,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:43,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:43,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:43,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:43,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:43,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:43,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:43,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:43,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:43,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:43,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:43,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:43,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:43,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:43,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:43,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:43,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:43,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:43,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:43,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:43,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:43,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:43,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:43,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:43,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:43,352 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-06-11 04:28:43,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:43,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:43,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:43,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:43,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:43,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:43,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:43,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:43,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:43,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:43,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:43,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:43,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:43,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:43,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:43,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:43,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:43,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:43,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:43,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:43,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:43,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:43,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:43,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:43,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:43,395 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:43,395 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:43,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:43,405 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:43,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:43,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-06-11 04:28:43,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674793100] [2021-06-11 04:28:43,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-11 04:28:43,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:43,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-11 04:28:43,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-06-11 04:28:43,407 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:43,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 463 transitions, 14720 flow. Second operand has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:43,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:43,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:43,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:43,742 INFO L129 PetriNetUnfolder]: 318/851 cut-off events. [2021-06-11 04:28:43,742 INFO L130 PetriNetUnfolder]: For 36013/36019 co-relation queries the response was YES. [2021-06-11 04:28:43,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10462 conditions, 851 events. 318/851 cut-off events. For 36013/36019 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 6437 event pairs, 0 based on Foata normal form. 7/858 useless extension candidates. Maximal degree in co-relation 10350. Up to 477 conditions per place. [2021-06-11 04:28:43,754 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 352 selfloop transitions, 125 changer transitions 0/484 dead transitions. [2021-06-11 04:28:43,754 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 484 transitions, 16123 flow [2021-06-11 04:28:43,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-11 04:28:43,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-06-11 04:28:43,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1190 transitions. [2021-06-11 04:28:43,755 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2021-06-11 04:28:43,755 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1190 transitions. [2021-06-11 04:28:43,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1190 transitions. [2021-06-11 04:28:43,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:43,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1190 transitions. [2021-06-11 04:28:43,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 79.33333333333333) internal successors, (1190), 15 states have internal predecessors, (1190), 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) [2021-06-11 04:28:43,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 112.0) internal successors, (1792), 16 states have internal predecessors, (1792), 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) [2021-06-11 04:28:43,758 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 112.0) internal successors, (1792), 16 states have internal predecessors, (1792), 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) [2021-06-11 04:28:43,758 INFO L185 Difference]: Start difference. First operand has 287 places, 463 transitions, 14720 flow. Second operand 15 states and 1190 transitions. [2021-06-11 04:28:43,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 484 transitions, 16123 flow [2021-06-11 04:28:43,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 484 transitions, 15416 flow, removed 279 selfloop flow, removed 14 redundant places. [2021-06-11 04:28:43,989 INFO L241 Difference]: Finished difference. Result has 289 places, 466 transitions, 14529 flow [2021-06-11 04:28:43,990 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=14045, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14529, PETRI_PLACES=289, PETRI_TRANSITIONS=466} [2021-06-11 04:28:43,990 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 271 predicate places. [2021-06-11 04:28:43,990 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:43,990 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 289 places, 466 transitions, 14529 flow [2021-06-11 04:28:43,990 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 289 places, 466 transitions, 14529 flow [2021-06-11 04:28:43,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 289 places, 466 transitions, 14529 flow [2021-06-11 04:28:44,108 INFO L129 PetriNetUnfolder]: 318/851 cut-off events. [2021-06-11 04:28:44,108 INFO L130 PetriNetUnfolder]: For 33616/33616 co-relation queries the response was YES. [2021-06-11 04:28:44,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9672 conditions, 851 events. 318/851 cut-off events. For 33616/33616 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 6483 event pairs, 0 based on Foata normal form. 0/851 useless extension candidates. Maximal degree in co-relation 9560. Up to 390 conditions per place. [2021-06-11 04:28:44,119 INFO L151 LiptonReduction]: Number of co-enabled transitions 1160 [2021-06-11 04:28:44,159 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:44,159 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:44,159 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 169 [2021-06-11 04:28:44,159 INFO L480 AbstractCegarLoop]: Abstraction has has 289 places, 466 transitions, 14529 flow [2021-06-11 04:28:44,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:44,160 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:44,160 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:44,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2021-06-11 04:28:44,360 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:44,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:44,361 INFO L82 PathProgramCache]: Analyzing trace with hash -663951839, now seen corresponding path program 27 times [2021-06-11 04:28:44,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:44,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018713438] [2021-06-11 04:28:44,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:44,374 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:44,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,378 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-06-11 04:28:44,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:44,382 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-06-11 04:28:44,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:44,386 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-06-11 04:28:44,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:44,392 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-06-11 04:28:44,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:44,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:44,405 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:44,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:44,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018713438] [2021-06-11 04:28:44,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514345108] [2021-06-11 04:28:44,413 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:44,457 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-11 04:28:44,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:44,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-11 04:28:44,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:44,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:44,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:44,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:44,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:44,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:44,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:44,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:44,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:44,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:44,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:44,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:44,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:44,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:44,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:44,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:44,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:44,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:44,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:44,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:44,511 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-06-11 04:28:44,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:44,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 04:28:44,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:44,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:44,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:44,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:44,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:44,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:44,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:44,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:44,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:44,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:44,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:44,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:44,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:44,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:28:44,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,539 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-06-11 04:28:44,539 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-06-11 04:28:44,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:44,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:44,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:44,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 04:28:44,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:44,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:44,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 04:28:44,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:44,556 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:44,557 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:44,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:44,567 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:44,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:44,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-06-11 04:28:44,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645238709] [2021-06-11 04:28:44,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-11 04:28:44,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:44,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-11 04:28:44,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-06-11 04:28:44,569 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:44,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 466 transitions, 14529 flow. Second operand has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:44,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:44,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:44,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:44,966 INFO L129 PetriNetUnfolder]: 321/859 cut-off events. [2021-06-11 04:28:44,966 INFO L130 PetriNetUnfolder]: For 36079/36085 co-relation queries the response was YES. [2021-06-11 04:28:44,970 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10393 conditions, 859 events. 321/859 cut-off events. For 36079/36085 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 6505 event pairs, 0 based on Foata normal form. 7/866 useless extension candidates. Maximal degree in co-relation 10279. Up to 445 conditions per place. [2021-06-11 04:28:44,975 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 324 selfloop transitions, 164 changer transitions 0/495 dead transitions. [2021-06-11 04:28:44,975 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 495 transitions, 16110 flow [2021-06-11 04:28:44,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-11 04:28:44,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-11 04:28:44,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1665 transitions. [2021-06-11 04:28:44,976 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7079081632653061 [2021-06-11 04:28:44,976 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1665 transitions. [2021-06-11 04:28:44,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1665 transitions. [2021-06-11 04:28:44,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:44,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1665 transitions. [2021-06-11 04:28:44,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 79.28571428571429) internal successors, (1665), 21 states have internal predecessors, (1665), 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) [2021-06-11 04:28:44,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 112.0) internal successors, (2464), 22 states have internal predecessors, (2464), 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) [2021-06-11 04:28:44,979 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 112.0) internal successors, (2464), 22 states have internal predecessors, (2464), 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) [2021-06-11 04:28:44,979 INFO L185 Difference]: Start difference. First operand has 289 places, 466 transitions, 14529 flow. Second operand 21 states and 1665 transitions. [2021-06-11 04:28:44,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 495 transitions, 16110 flow [2021-06-11 04:28:45,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 495 transitions, 15896 flow, removed 21 selfloop flow, removed 13 redundant places. [2021-06-11 04:28:45,178 INFO L241 Difference]: Finished difference. Result has 298 places, 470 transitions, 14937 flow [2021-06-11 04:28:45,178 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=14315, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=14937, PETRI_PLACES=298, PETRI_TRANSITIONS=470} [2021-06-11 04:28:45,178 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 280 predicate places. [2021-06-11 04:28:45,178 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:45,178 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 298 places, 470 transitions, 14937 flow [2021-06-11 04:28:45,179 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 298 places, 470 transitions, 14937 flow [2021-06-11 04:28:45,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 298 places, 470 transitions, 14937 flow [2021-06-11 04:28:45,294 INFO L129 PetriNetUnfolder]: 321/860 cut-off events. [2021-06-11 04:28:45,294 INFO L130 PetriNetUnfolder]: For 35270/35270 co-relation queries the response was YES. [2021-06-11 04:28:45,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9919 conditions, 860 events. 321/860 cut-off events. For 35270/35270 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 6591 event pairs, 0 based on Foata normal form. 0/860 useless extension candidates. Maximal degree in co-relation 9806. Up to 396 conditions per place. [2021-06-11 04:28:45,305 INFO L151 LiptonReduction]: Number of co-enabled transitions 1168 [2021-06-11 04:28:45,347 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:45,348 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:45,348 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 170 [2021-06-11 04:28:45,348 INFO L480 AbstractCegarLoop]: Abstraction has has 298 places, 470 transitions, 14937 flow [2021-06-11 04:28:45,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:45,348 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:45,348 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:45,549 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:45,550 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:45,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:45,550 INFO L82 PathProgramCache]: Analyzing trace with hash -643634098, now seen corresponding path program 28 times [2021-06-11 04:28:45,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:45,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981980567] [2021-06-11 04:28:45,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:45,559 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:45,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,563 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-06-11 04:28:45,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:45,567 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-06-11 04:28:45,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:45,572 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-06-11 04:28:45,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:45,578 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-06-11 04:28:45,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:45,585 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-11 04:28:45,585 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-06-11 04:28:45,596 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:45,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,602 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:45,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981980567] [2021-06-11 04:28:45,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728228493] [2021-06-11 04:28:45,602 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:45,638 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 04:28:45,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:45,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-11 04:28:45,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:45,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:45,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:45,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:45,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:45,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:45,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:45,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:45,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:45,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:45,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:45,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:45,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:45,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:45,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:45,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:45,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:45,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:45,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:45,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:45,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:45,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:45,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:45,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:45,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:45,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:45,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:45,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:45,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:45,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:45,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:45,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:45,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:45,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:45,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:45,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:45,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:45,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:45,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:45,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 04:28:45,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:45,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:45,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:45,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:45,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:45,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:28:45,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 04:28:45,718 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-06-11 04:28:45,719 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-06-11 04:28:45,719 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-06-11 04:28:45,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:45,727 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:45,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 04:28:45,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-06-11 04:28:45,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824055639] [2021-06-11 04:28:45,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-11 04:28:45,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:28:45,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-11 04:28:45,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2021-06-11 04:28:45,728 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2021-06-11 04:28:45,728 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 470 transitions, 14937 flow. Second operand has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:45,728 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:28:45,728 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2021-06-11 04:28:45,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:28:46,287 INFO L129 PetriNetUnfolder]: 351/938 cut-off events. [2021-06-11 04:28:46,287 INFO L130 PetriNetUnfolder]: For 48979/48985 co-relation queries the response was YES. [2021-06-11 04:28:46,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11568 conditions, 938 events. 351/938 cut-off events. For 48979/48985 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 7151 event pairs, 0 based on Foata normal form. 11/949 useless extension candidates. Maximal degree in co-relation 11453. Up to 448 conditions per place. [2021-06-11 04:28:46,297 INFO L132 encePairwiseOnDemand]: 107/112 looper letters, 170 selfloop transitions, 351 changer transitions 0/528 dead transitions. [2021-06-11 04:28:46,297 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 528 transitions, 17875 flow [2021-06-11 04:28:46,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-11 04:28:46,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-06-11 04:28:46,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 1990 transitions. [2021-06-11 04:28:46,298 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7107142857142857 [2021-06-11 04:28:46,298 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 1990 transitions. [2021-06-11 04:28:46,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 1990 transitions. [2021-06-11 04:28:46,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:28:46,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 1990 transitions. [2021-06-11 04:28:46,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 79.6) internal successors, (1990), 25 states have internal predecessors, (1990), 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) [2021-06-11 04:28:46,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 112.0) internal successors, (2912), 26 states have internal predecessors, (2912), 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) [2021-06-11 04:28:46,302 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 112.0) internal successors, (2912), 26 states have internal predecessors, (2912), 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) [2021-06-11 04:28:46,302 INFO L185 Difference]: Start difference. First operand has 298 places, 470 transitions, 14937 flow. Second operand 25 states and 1990 transitions. [2021-06-11 04:28:46,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 528 transitions, 17875 flow [2021-06-11 04:28:46,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 528 transitions, 17605 flow, removed 30 selfloop flow, removed 16 redundant places. [2021-06-11 04:28:46,527 INFO L241 Difference]: Finished difference. Result has 311 places, 516 transitions, 17427 flow [2021-06-11 04:28:46,527 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=14675, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=316, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=17427, PETRI_PLACES=311, PETRI_TRANSITIONS=516} [2021-06-11 04:28:46,527 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 293 predicate places. [2021-06-11 04:28:46,527 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:28:46,527 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 311 places, 516 transitions, 17427 flow [2021-06-11 04:28:46,527 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 311 places, 516 transitions, 17427 flow [2021-06-11 04:28:46,533 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 311 places, 516 transitions, 17427 flow [2021-06-11 04:28:46,672 INFO L129 PetriNetUnfolder]: 351/938 cut-off events. [2021-06-11 04:28:46,672 INFO L130 PetriNetUnfolder]: For 42757/42757 co-relation queries the response was YES. [2021-06-11 04:28:46,678 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11418 conditions, 938 events. 351/938 cut-off events. For 42757/42757 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 7394 event pairs, 0 based on Foata normal form. 0/938 useless extension candidates. Maximal degree in co-relation 11301. Up to 446 conditions per place. [2021-06-11 04:28:46,685 INFO L151 LiptonReduction]: Number of co-enabled transitions 1268 [2021-06-11 04:28:46,735 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:28:46,736 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:28:46,736 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 209 [2021-06-11 04:28:46,736 INFO L480 AbstractCegarLoop]: Abstraction has has 311 places, 516 transitions, 17427 flow [2021-06-11 04:28:46,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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) [2021-06-11 04:28:46,736 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:28:46,736 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:28:46,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-06-11 04:28:46,937 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:28:46,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:28:46,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1566919295, now seen corresponding path program 29 times [2021-06-11 04:28:46,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:28:46,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411955955] [2021-06-11 04:28:46,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:28:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:28:46,946 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 04:28:46,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:46,950 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-06-11 04:28:46,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:46,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:46,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:46,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:46,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:28:46,966 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-06-11 04:28:46,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:46,972 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-11 04:28:46,973 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-06-11 04:28:46,983 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:28:46,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:46,989 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:28:46,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411955955] [2021-06-11 04:28:46,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758356379] [2021-06-11 04:28:46,989 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 04:28:47,025 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-11 04:28:47,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 04:28:47,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-11 04:28:47,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 04:28:47,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:47,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:47,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:47,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:47,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:47,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:47,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:47,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:47,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:47,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:47,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:47,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:28:47,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:47,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:47,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:47,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:47,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:28:47,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:47,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:28:47,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:47,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:47,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:47,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:47,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:47,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 04:28:47,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:47,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:47,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:28:47,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:28:47,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,091 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-06-11 04:28:47,092 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-06-11 04:28:47,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 04:28:47,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:47,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 04:28:47,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:28:47,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 04:28:47,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,120 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size 20 [2021-06-11 04:28:47,121 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size [2021-06-11 04:28:47,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 04:28:47,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 04:28:47,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-11 04:28:47,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 04:28:47,136 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-06-11 04:28:47,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,137 INFO L147 QuantifierPusher]: treesize reduction -4, result has 113.3 percent of original size 34 [2021-06-11 04:28:47,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,139 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.0 percent of original size [2021-06-11 04:28:47,139 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-11 04:28:47,139 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,141 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.7 percent of original size 60 [2021-06-11 04:28:47,142 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.7 percent of original size 60 [2021-06-11 04:28:47,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,149 INFO L147 QuantifierPusher]: treesize reduction -2, result has 108.7 percent of original size 25 [2021-06-11 04:28:47,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,150 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-11 04:28:47,151 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,171 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 04:28:47,192 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 04:28:47,228 INFO L147 QuantifierPusher]: treesize reduction 62, result has 92.8 percent of original size 802 [2021-06-11 04:28:47,231 INFO L147 QuantifierPusher]: treesize reduction 62, result has 92.8 percent of original size 802 [2021-06-11 04:28:47,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,247 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size 22 [2021-06-11 04:28:47,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,249 INFO L147 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size 23 [2021-06-11 04:28:47,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,253 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-06-11 04:28:47,253 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:28:47,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:28:47,384 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 04:28:47,667 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 04:28:48,160 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 04:28:48,805 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 04:28:49,594 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 04:28:50,646 INFO L842 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown