/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_bench_longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 14:40:00,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 14:40:00,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 14:40:00,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 14:40:00,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 14:40:00,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 14:40:00,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 14:40:00,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 14:40:00,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 14:40:00,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 14:40:00,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 14:40:00,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 14:40:00,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 14:40:00,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 14:40:00,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 14:40:00,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 14:40:00,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 14:40:00,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 14:40:00,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 14:40:00,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 14:40:00,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 14:40:00,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 14:40:00,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 14:40:00,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 14:40:00,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-28 14:40:00,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-28 14:40:00,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-28 14:40:00,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-28 14:40:00,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-28 14:40:00,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-28 14:40:00,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 14:40:00,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 14:40:00,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 14:40:00,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 14:40:00,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 14:40:00,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 14:40:00,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 14:40:00,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 14:40:00,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 14:40:00,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 14:40:00,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 14:40:00,358 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 14:40:00,406 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 14:40:00,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 14:40:00,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 14:40:00,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 14:40:00,413 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 14:40:00,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 14:40:00,413 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 14:40:00,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 14:40:00,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 14:40:00,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 14:40:00,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 14:40:00,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 14:40:00,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 14:40:00,416 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 14:40:00,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 14:40:00,416 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 14:40:00,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 14:40:00,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 14:40:00,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 14:40:00,417 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 14:40:00,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 14:40:00,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 14:40:00,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 14:40:00,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 14:40:00,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 14:40:00,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 14:40:00,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 14:40:00,419 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 14:40:00,419 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 14:40:00,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 14:40:00,419 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 14:40:00,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 14:40:00,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 14:40:00,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 14:40:00,866 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 14:40:00,866 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 14:40:00,867 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_bench_longest-1.i [2021-04-28 14:40:00,944 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d78c07434/a2ae87f21d47426abcbaeab43ef5bf30/FLAG5a9a028e6 [2021-04-28 14:40:01,707 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 14:40:01,709 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longest-1.i [2021-04-28 14:40:01,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d78c07434/a2ae87f21d47426abcbaeab43ef5bf30/FLAG5a9a028e6 [2021-04-28 14:40:01,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d78c07434/a2ae87f21d47426abcbaeab43ef5bf30 [2021-04-28 14:40:01,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 14:40:01,972 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 14:40:01,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 14:40:01,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 14:40:01,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 14:40:01,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 02:40:01" (1/1) ... [2021-04-28 14:40:01,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@471d1537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:40:01, skipping insertion in model container [2021-04-28 14:40:01,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 02:40:01" (1/1) ... [2021-04-28 14:40:01,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 14:40:02,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 14:40:02,372 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_longest-1.i[30286,30299] [2021-04-28 14:40:02,411 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_longest-1.i[31038,31051] [2021-04-28 14:40:02,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 14:40:02,428 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 14:40:02,513 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_longest-1.i[30286,30299] [2021-04-28 14:40:02,532 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_longest-1.i[31038,31051] [2021-04-28 14:40:02,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 14:40:02,666 INFO L208 MainTranslator]: Completed translation [2021-04-28 14:40:02,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:40:02 WrapperNode [2021-04-28 14:40:02,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 14:40:02,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 14:40:02,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 14:40:02,668 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 14:40:02,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:40:02" (1/1) ... [2021-04-28 14:40:02,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:40:02" (1/1) ... [2021-04-28 14:40:02,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 14:40:02,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 14:40:02,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 14:40:02,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 14:40:02,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:40:02" (1/1) ... [2021-04-28 14:40:02,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:40:02" (1/1) ... [2021-04-28 14:40:02,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:40:02" (1/1) ... [2021-04-28 14:40:02,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:40:02" (1/1) ... [2021-04-28 14:40:02,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:40:02" (1/1) ... [2021-04-28 14:40:02,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:40:02" (1/1) ... [2021-04-28 14:40:02,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:40:02" (1/1) ... [2021-04-28 14:40:02,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 14:40:02,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 14:40:02,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 14:40:02,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 14:40:02,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:40:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 14:40:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-04-28 14:40:02,985 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-04-28 14:40:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-04-28 14:40:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-04-28 14:40:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 14:40:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 14:40:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 14:40:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 14:40:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 14:40:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 14:40:02,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 14:40:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 14:40:02,993 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 14:40:03,533 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 14:40:03,533 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-04-28 14:40:03,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 02:40:03 BoogieIcfgContainer [2021-04-28 14:40:03,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 14:40:03,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 14:40:03,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 14:40:03,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 14:40:03,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 02:40:01" (1/3) ... [2021-04-28 14:40:03,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba2c8cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 02:40:03, skipping insertion in model container [2021-04-28 14:40:03,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:40:02" (2/3) ... [2021-04-28 14:40:03,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba2c8cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 02:40:03, skipping insertion in model container [2021-04-28 14:40:03,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 02:40:03" (3/3) ... [2021-04-28 14:40:03,546 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_bench_longest-1.i [2021-04-28 14:40:03,553 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 14:40:03,558 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 14:40:03,559 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 14:40:03,600 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,601 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,601 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,601 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,601 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,602 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,602 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,602 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,603 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,603 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,604 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,604 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,604 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,604 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,605 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,605 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,606 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,607 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,607 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,607 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,607 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,607 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,608 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,608 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,609 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,609 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,610 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,610 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,610 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,610 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,611 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,611 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,612 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,613 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,613 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,613 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,613 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,613 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,614 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,614 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,614 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,614 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,615 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,615 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,615 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,615 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,616 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,617 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,617 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,617 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,618 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,618 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,618 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,618 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,619 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,619 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,620 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,620 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,622 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,622 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,625 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,625 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,626 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,626 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,626 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,626 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,632 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,632 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,632 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,633 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,633 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,633 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:40:03,636 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 14:40:03,659 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-28 14:40:03,683 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 14:40:03,684 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 14:40:03,684 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 14:40:03,684 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 14:40:03,684 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 14:40:03,684 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 14:40:03,684 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 14:40:03,685 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 14:40:03,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 134 flow [2021-04-28 14:40:03,736 INFO L129 PetriNetUnfolder]: 5/60 cut-off events. [2021-04-28 14:40:03,737 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 14:40:03,742 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 91 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. [2021-04-28 14:40:03,742 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 62 transitions, 134 flow [2021-04-28 14:40:03,748 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 60 transitions, 126 flow [2021-04-28 14:40:03,750 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:03,767 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 60 transitions, 126 flow [2021-04-28 14:40:03,772 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 60 transitions, 126 flow [2021-04-28 14:40:03,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 60 transitions, 126 flow [2021-04-28 14:40:03,806 INFO L129 PetriNetUnfolder]: 5/60 cut-off events. [2021-04-28 14:40:03,806 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 14:40:03,807 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 91 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. [2021-04-28 14:40:03,813 INFO L146 LiptonReduction]: Number of co-enabled transitions 1080 [2021-04-28 14:40:05,625 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2021-04-28 14:40:10,230 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-04-28 14:40:10,431 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-04-28 14:40:10,613 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-04-28 14:40:10,780 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-04-28 14:40:10,983 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-04-28 14:40:15,062 WARN L205 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-04-28 14:40:15,237 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 14:40:15,631 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-04-28 14:40:15,820 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 14:40:16,535 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-04-28 14:40:16,713 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 14:40:17,123 WARN L205 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-04-28 14:40:17,299 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 14:40:17,940 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 14:40:18,077 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 14:40:18,387 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 14:40:18,525 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 14:40:19,329 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 14:40:19,529 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 14:40:19,633 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 14:40:20,709 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 14:40:20,816 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 14:40:21,018 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 14:40:21,131 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 14:40:21,344 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 14:40:21,450 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-28 14:40:21,567 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 14:40:21,675 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-28 14:40:21,785 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 14:40:21,890 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-28 14:40:22,002 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 14:40:22,203 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 14:40:22,304 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-28 14:40:22,439 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 14:40:22,569 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-28 14:40:22,721 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 14:40:22,847 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-28 14:40:23,309 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 14:40:23,512 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 14:40:23,826 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 14:40:24,034 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 14:40:24,247 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 14:40:24,462 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 14:40:24,582 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 14:40:24,690 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 14:40:24,812 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 14:40:24,915 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 14:40:25,084 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 14:40:25,236 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 14:40:25,408 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 14:40:25,581 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 14:40:25,781 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 14:40:25,975 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 14:40:26,176 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 14:40:26,366 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 14:40:26,480 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 14:40:26,585 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-28 14:40:26,697 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 14:40:26,798 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-28 14:40:26,833 INFO L158 LiptonReduction]: Checked pairs total: 4086 [2021-04-28 14:40:26,833 INFO L160 LiptonReduction]: Total number of compositions: 119 [2021-04-28 14:40:26,837 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23089 [2021-04-28 14:40:26,857 INFO L129 PetriNetUnfolder]: 2/61 cut-off events. [2021-04-28 14:40:26,857 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 14:40:26,857 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:26,858 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-28 14:40:26,858 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:26,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:26,864 INFO L82 PathProgramCache]: Analyzing trace with hash 677114162, now seen corresponding path program 1 times [2021-04-28 14:40:26,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:26,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961066607] [2021-04-28 14:40:26,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:27,217 INFO L142 QuantifierPusher]: treesize reduction 12, result has 47.8 percent of original size [2021-04-28 14:40:27,220 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:27,257 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-04-28 14:40:27,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:27,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961066607] [2021-04-28 14:40:27,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:27,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 14:40:27,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796479293] [2021-04-28 14:40:27,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 14:40:27,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:27,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 14:40:27,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 14:40:27,310 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:27,318 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 70 transitions, 146 flow. Second operand has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:27,318 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:27,319 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:27,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:27,856 INFO L129 PetriNetUnfolder]: 1996/2995 cut-off events. [2021-04-28 14:40:27,856 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 14:40:27,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5706 conditions, 2995 events. 1996/2995 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 17223 event pairs, 140 based on Foata normal form. 0/625 useless extension candidates. Maximal degree in co-relation 5660. Up to 1942 conditions per place. [2021-04-28 14:40:27,902 INFO L132 encePairwiseOnDemand]: 149/181 looper letters, 16 selfloop transitions, 24 changer transitions 61/120 dead transitions. [2021-04-28 14:40:27,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 120 transitions, 422 flow [2021-04-28 14:40:27,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 14:40:27,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 14:40:27,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 577 transitions. [2021-04-28 14:40:27,922 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6375690607734806 [2021-04-28 14:40:27,922 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 577 transitions. [2021-04-28 14:40:27,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 577 transitions. [2021-04-28 14:40:27,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:27,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 577 transitions. [2021-04-28 14:40:27,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:27,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:27,944 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:27,946 INFO L185 Difference]: Start difference. First operand has 75 places, 70 transitions, 146 flow. Second operand 5 states and 577 transitions. [2021-04-28 14:40:27,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 120 transitions, 422 flow [2021-04-28 14:40:27,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 120 transitions, 420 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 14:40:27,954 INFO L241 Difference]: Finished difference. Result has 79 places, 54 transitions, 224 flow [2021-04-28 14:40:27,957 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=224, PETRI_PLACES=79, PETRI_TRANSITIONS=54} [2021-04-28 14:40:27,958 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 4 predicate places. [2021-04-28 14:40:27,958 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:27,958 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 54 transitions, 224 flow [2021-04-28 14:40:27,959 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 54 transitions, 224 flow [2021-04-28 14:40:27,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 54 transitions, 224 flow [2021-04-28 14:40:27,987 INFO L129 PetriNetUnfolder]: 155/312 cut-off events. [2021-04-28 14:40:27,988 INFO L130 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2021-04-28 14:40:27,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 312 events. 155/312 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 1664 event pairs, 16 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 743. Up to 154 conditions per place. [2021-04-28 14:40:27,994 INFO L146 LiptonReduction]: Number of co-enabled transitions 854 [2021-04-28 14:40:28,005 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:28,006 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:28,006 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-04-28 14:40:28,008 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 54 transitions, 224 flow [2021-04-28 14:40:28,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:28,008 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:28,009 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:28,009 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 14:40:28,009 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:28,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:28,010 INFO L82 PathProgramCache]: Analyzing trace with hash -2126902933, now seen corresponding path program 1 times [2021-04-28 14:40:28,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:28,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676996967] [2021-04-28 14:40:28,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:28,068 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:28,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,080 INFO L142 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size [2021-04-28 14:40:28,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:28,103 INFO L142 QuantifierPusher]: treesize reduction 10, result has 41.2 percent of original size [2021-04-28 14:40:28,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:28,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676996967] [2021-04-28 14:40:28,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:28,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 14:40:28,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851857847] [2021-04-28 14:40:28,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 14:40:28,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:28,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 14:40:28,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 14:40:28,122 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:28,123 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 54 transitions, 224 flow. Second operand has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:28,123 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:28,123 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:28,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:28,345 INFO L129 PetriNetUnfolder]: 361/562 cut-off events. [2021-04-28 14:40:28,345 INFO L130 PetriNetUnfolder]: For 190/232 co-relation queries the response was YES. [2021-04-28 14:40:28,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1770 conditions, 562 events. 361/562 cut-off events. For 190/232 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 2323 event pairs, 0 based on Foata normal form. 16/196 useless extension candidates. Maximal degree in co-relation 1758. Up to 439 conditions per place. [2021-04-28 14:40:28,353 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 16 selfloop transitions, 51 changer transitions 0/86 dead transitions. [2021-04-28 14:40:28,353 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 86 transitions, 520 flow [2021-04-28 14:40:28,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 14:40:28,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 14:40:28,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 748 transitions. [2021-04-28 14:40:28,357 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.590370955011839 [2021-04-28 14:40:28,358 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 748 transitions. [2021-04-28 14:40:28,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 748 transitions. [2021-04-28 14:40:28,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:28,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 748 transitions. [2021-04-28 14:40:28,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:28,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:28,367 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:28,367 INFO L185 Difference]: Start difference. First operand has 41 places, 54 transitions, 224 flow. Second operand 7 states and 748 transitions. [2021-04-28 14:40:28,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 86 transitions, 520 flow [2021-04-28 14:40:28,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 86 transitions, 520 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 14:40:28,374 INFO L241 Difference]: Finished difference. Result has 50 places, 81 transitions, 539 flow [2021-04-28 14:40:28,374 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=539, PETRI_PLACES=50, PETRI_TRANSITIONS=81} [2021-04-28 14:40:28,375 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -25 predicate places. [2021-04-28 14:40:28,375 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:28,375 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 81 transitions, 539 flow [2021-04-28 14:40:28,376 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 81 transitions, 539 flow [2021-04-28 14:40:28,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 81 transitions, 539 flow [2021-04-28 14:40:28,423 INFO L129 PetriNetUnfolder]: 285/482 cut-off events. [2021-04-28 14:40:28,424 INFO L130 PetriNetUnfolder]: For 296/325 co-relation queries the response was YES. [2021-04-28 14:40:28,426 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1835 conditions, 482 events. 285/482 cut-off events. For 296/325 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 2324 event pairs, 12 based on Foata normal form. 1/160 useless extension candidates. Maximal degree in co-relation 1820. Up to 225 conditions per place. [2021-04-28 14:40:28,434 INFO L146 LiptonReduction]: Number of co-enabled transitions 1232 [2021-04-28 14:40:28,449 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:28,450 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:28,450 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-04-28 14:40:28,451 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 81 transitions, 539 flow [2021-04-28 14:40:28,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:28,452 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:28,452 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:28,453 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 14:40:28,453 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:28,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:28,453 INFO L82 PathProgramCache]: Analyzing trace with hash -2126969769, now seen corresponding path program 1 times [2021-04-28 14:40:28,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:28,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50234532] [2021-04-28 14:40:28,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:28,498 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:28,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,509 INFO L142 QuantifierPusher]: treesize reduction 16, result has 38.5 percent of original size [2021-04-28 14:40:28,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:28,525 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:28,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:28,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50234532] [2021-04-28 14:40:28,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:28,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 14:40:28,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195995988] [2021-04-28 14:40:28,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 14:40:28,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:28,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 14:40:28,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 14:40:28,542 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:28,543 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 81 transitions, 539 flow. Second operand has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:28,543 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:28,543 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:28,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:28,712 INFO L129 PetriNetUnfolder]: 401/642 cut-off events. [2021-04-28 14:40:28,712 INFO L130 PetriNetUnfolder]: For 551/613 co-relation queries the response was YES. [2021-04-28 14:40:28,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2895 conditions, 642 events. 401/642 cut-off events. For 551/613 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 2880 event pairs, 0 based on Foata normal form. 30/228 useless extension candidates. Maximal degree in co-relation 2878. Up to 479 conditions per place. [2021-04-28 14:40:28,722 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 44 selfloop transitions, 29 changer transitions 3/95 dead transitions. [2021-04-28 14:40:28,722 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 95 transitions, 815 flow [2021-04-28 14:40:28,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 14:40:28,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 14:40:28,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 532 transitions. [2021-04-28 14:40:28,726 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5878453038674033 [2021-04-28 14:40:28,726 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 532 transitions. [2021-04-28 14:40:28,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 532 transitions. [2021-04-28 14:40:28,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:28,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 532 transitions. [2021-04-28 14:40:28,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.4) internal successors, (532), 5 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:28,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:28,732 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:28,732 INFO L185 Difference]: Start difference. First operand has 50 places, 81 transitions, 539 flow. Second operand 5 states and 532 transitions. [2021-04-28 14:40:28,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 95 transitions, 815 flow [2021-04-28 14:40:28,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 95 transitions, 708 flow, removed 43 selfloop flow, removed 2 redundant places. [2021-04-28 14:40:28,744 INFO L241 Difference]: Finished difference. Result has 53 places, 82 transitions, 544 flow [2021-04-28 14:40:28,744 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=544, PETRI_PLACES=53, PETRI_TRANSITIONS=82} [2021-04-28 14:40:28,745 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -22 predicate places. [2021-04-28 14:40:28,745 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:28,745 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 82 transitions, 544 flow [2021-04-28 14:40:28,746 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 82 transitions, 544 flow [2021-04-28 14:40:28,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 82 transitions, 544 flow [2021-04-28 14:40:28,798 INFO L129 PetriNetUnfolder]: 298/473 cut-off events. [2021-04-28 14:40:28,798 INFO L130 PetriNetUnfolder]: For 458/458 co-relation queries the response was YES. [2021-04-28 14:40:28,801 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1956 conditions, 473 events. 298/473 cut-off events. For 458/458 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 2050 event pairs, 12 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 1939. Up to 235 conditions per place. [2021-04-28 14:40:28,810 INFO L146 LiptonReduction]: Number of co-enabled transitions 1278 [2021-04-28 14:40:28,829 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:28,829 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:28,829 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 84 [2021-04-28 14:40:28,831 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 82 transitions, 544 flow [2021-04-28 14:40:28,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:28,832 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:28,832 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:28,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 14:40:28,832 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:28,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:28,833 INFO L82 PathProgramCache]: Analyzing trace with hash -2126927919, now seen corresponding path program 2 times [2021-04-28 14:40:28,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:28,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444679849] [2021-04-28 14:40:28,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:28,872 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:28,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,883 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-04-28 14:40:28,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:28,908 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:28,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:28,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444679849] [2021-04-28 14:40:28,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:28,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 14:40:28,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9649371] [2021-04-28 14:40:28,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 14:40:28,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:28,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 14:40:28,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 14:40:28,925 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:28,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 82 transitions, 544 flow. Second operand has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:28,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:28,926 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:28,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:29,197 INFO L129 PetriNetUnfolder]: 450/713 cut-off events. [2021-04-28 14:40:29,197 INFO L130 PetriNetUnfolder]: For 827/869 co-relation queries the response was YES. [2021-04-28 14:40:29,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3295 conditions, 713 events. 450/713 cut-off events. For 827/869 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 3176 event pairs, 0 based on Foata normal form. 30/248 useless extension candidates. Maximal degree in co-relation 3276. Up to 523 conditions per place. [2021-04-28 14:40:29,208 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 44 selfloop transitions, 56 changer transitions 0/119 dead transitions. [2021-04-28 14:40:29,208 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 119 transitions, 1030 flow [2021-04-28 14:40:29,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 14:40:29,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 14:40:29,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 745 transitions. [2021-04-28 14:40:29,211 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5880031570639306 [2021-04-28 14:40:29,211 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 745 transitions. [2021-04-28 14:40:29,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 745 transitions. [2021-04-28 14:40:29,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:29,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 745 transitions. [2021-04-28 14:40:29,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 106.42857142857143) internal successors, (745), 7 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:29,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:29,219 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:29,219 INFO L185 Difference]: Start difference. First operand has 53 places, 82 transitions, 544 flow. Second operand 7 states and 745 transitions. [2021-04-28 14:40:29,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 119 transitions, 1030 flow [2021-04-28 14:40:29,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 119 transitions, 971 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-04-28 14:40:29,230 INFO L241 Difference]: Finished difference. Result has 58 places, 109 transitions, 892 flow [2021-04-28 14:40:29,231 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=892, PETRI_PLACES=58, PETRI_TRANSITIONS=109} [2021-04-28 14:40:29,231 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -17 predicate places. [2021-04-28 14:40:29,231 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:29,231 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 109 transitions, 892 flow [2021-04-28 14:40:29,232 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 109 transitions, 892 flow [2021-04-28 14:40:29,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 109 transitions, 892 flow [2021-04-28 14:40:29,326 INFO L129 PetriNetUnfolder]: 410/645 cut-off events. [2021-04-28 14:40:29,326 INFO L130 PetriNetUnfolder]: For 942/942 co-relation queries the response was YES. [2021-04-28 14:40:29,330 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3224 conditions, 645 events. 410/645 cut-off events. For 942/942 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 2940 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 3205. Up to 295 conditions per place. [2021-04-28 14:40:29,341 INFO L146 LiptonReduction]: Number of co-enabled transitions 1614 [2021-04-28 14:40:29,382 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:29,383 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:29,383 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 152 [2021-04-28 14:40:29,385 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 109 transitions, 892 flow [2021-04-28 14:40:29,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:29,390 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:29,390 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:29,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 14:40:29,390 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:29,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:29,391 INFO L82 PathProgramCache]: Analyzing trace with hash -460834817, now seen corresponding path program 1 times [2021-04-28 14:40:29,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:29,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258266230] [2021-04-28 14:40:29,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:29,456 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:29,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:29,470 INFO L142 QuantifierPusher]: treesize reduction 7, result has 56.3 percent of original size [2021-04-28 14:40:29,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:29,484 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-04-28 14:40:29,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:29,511 INFO L142 QuantifierPusher]: treesize reduction 10, result has 41.2 percent of original size [2021-04-28 14:40:29,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:29,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:29,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258266230] [2021-04-28 14:40:29,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982353347] [2021-04-28 14:40:29,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-04-28 14:40:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:29,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-28 14:40:29,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:29,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:29,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:29,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:29,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:29,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:29,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:29,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:29,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:29,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:29,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:29,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:29,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:29,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:29,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:29,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:29,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:29,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:29,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:29,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:29,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:29,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:29,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:29,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:29,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:29,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:29,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:29,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:29,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:29,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:29,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:29,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:29,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:29,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:29,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:29,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:29,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:29,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:29,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:29,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:29,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:29,824 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-04-28 14:40:29,829 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-28 14:40:29,834 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:29,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:29,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:29,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:29,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:29,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:29,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:29,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-04-28 14:40:29,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386852662] [2021-04-28 14:40:29,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-04-28 14:40:29,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:29,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-04-28 14:40:29,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-04-28 14:40:29,879 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:29,880 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 109 transitions, 892 flow. Second operand has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:29,880 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:29,881 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:29,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:30,413 INFO L129 PetriNetUnfolder]: 640/980 cut-off events. [2021-04-28 14:40:30,414 INFO L130 PetriNetUnfolder]: For 1522/1552 co-relation queries the response was YES. [2021-04-28 14:40:30,418 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5473 conditions, 980 events. 640/980 cut-off events. For 1522/1552 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 4394 event pairs, 0 based on Foata normal form. 17/307 useless extension candidates. Maximal degree in co-relation 5452. Up to 742 conditions per place. [2021-04-28 14:40:30,432 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 47 selfloop transitions, 106 changer transitions 0/172 dead transitions. [2021-04-28 14:40:30,432 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 172 transitions, 1876 flow [2021-04-28 14:40:30,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 14:40:30,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 14:40:30,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1176 transitions. [2021-04-28 14:40:30,438 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5906579608237067 [2021-04-28 14:40:30,438 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1176 transitions. [2021-04-28 14:40:30,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1176 transitions. [2021-04-28 14:40:30,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:30,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1176 transitions. [2021-04-28 14:40:30,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 106.9090909090909) internal successors, (1176), 11 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:30,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 181.0) internal successors, (2172), 12 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:30,448 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 181.0) internal successors, (2172), 12 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:30,448 INFO L185 Difference]: Start difference. First operand has 58 places, 109 transitions, 892 flow. Second operand 11 states and 1176 transitions. [2021-04-28 14:40:30,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 172 transitions, 1876 flow [2021-04-28 14:40:30,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 172 transitions, 1742 flow, removed 58 selfloop flow, removed 2 redundant places. [2021-04-28 14:40:30,468 INFO L241 Difference]: Finished difference. Result has 69 places, 172 transitions, 1747 flow [2021-04-28 14:40:30,468 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1747, PETRI_PLACES=69, PETRI_TRANSITIONS=172} [2021-04-28 14:40:30,468 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -6 predicate places. [2021-04-28 14:40:30,469 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:30,469 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 172 transitions, 1747 flow [2021-04-28 14:40:30,469 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 172 transitions, 1747 flow [2021-04-28 14:40:30,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 172 transitions, 1747 flow [2021-04-28 14:40:30,601 INFO L129 PetriNetUnfolder]: 640/968 cut-off events. [2021-04-28 14:40:30,601 INFO L130 PetriNetUnfolder]: For 2083/2107 co-relation queries the response was YES. [2021-04-28 14:40:30,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5425 conditions, 968 events. 640/968 cut-off events. For 2083/2107 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 4316 event pairs, 0 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 5402. Up to 612 conditions per place. [2021-04-28 14:40:30,624 INFO L146 LiptonReduction]: Number of co-enabled transitions 2264 [2021-04-28 14:40:30,651 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:30,651 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:30,652 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 183 [2021-04-28 14:40:30,653 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 172 transitions, 1747 flow [2021-04-28 14:40:30,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:30,653 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:30,654 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:30,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:30,868 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:30,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:30,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1511529635, now seen corresponding path program 1 times [2021-04-28 14:40:30,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:30,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798615992] [2021-04-28 14:40:30,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:30,906 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:30,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,917 INFO L142 QuantifierPusher]: treesize reduction 16, result has 38.5 percent of original size [2021-04-28 14:40:30,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:30,933 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-04-28 14:40:30,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:30,950 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:40:30,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:30,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798615992] [2021-04-28 14:40:30,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408247589] [2021-04-28 14:40:30,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-04-28 14:40:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:31,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-28 14:40:31,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:31,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:31,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:31,120 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-04-28 14:40:31,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:31,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:31,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:31,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:31,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:31,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:31,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:31,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:31,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:31,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:31,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:31,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:31,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:31,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:31,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:31,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:31,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:31,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:31,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-04-28 14:40:31,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463594575] [2021-04-28 14:40:31,209 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-04-28 14:40:31,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:31,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-04-28 14:40:31,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-04-28 14:40:31,213 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:31,214 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 172 transitions, 1747 flow. Second operand has 9 states, 9 states have (on average 100.0) internal successors, (900), 9 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:31,214 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:31,214 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:31,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:31,518 INFO L129 PetriNetUnfolder]: 680/1064 cut-off events. [2021-04-28 14:40:31,518 INFO L130 PetriNetUnfolder]: For 2830/2892 co-relation queries the response was YES. [2021-04-28 14:40:31,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6795 conditions, 1064 events. 680/1064 cut-off events. For 2830/2892 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 5030 event pairs, 0 based on Foata normal form. 30/339 useless extension candidates. Maximal degree in co-relation 6770. Up to 816 conditions per place. [2021-04-28 14:40:31,536 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 137 selfloop transitions, 47 changer transitions 3/206 dead transitions. [2021-04-28 14:40:31,537 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 206 transitions, 2576 flow [2021-04-28 14:40:31,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 14:40:31,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 14:40:31,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 636 transitions. [2021-04-28 14:40:31,540 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.585635359116022 [2021-04-28 14:40:31,540 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 636 transitions. [2021-04-28 14:40:31,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 636 transitions. [2021-04-28 14:40:31,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:31,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 636 transitions. [2021-04-28 14:40:31,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 106.0) internal successors, (636), 6 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:31,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:31,546 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:31,546 INFO L185 Difference]: Start difference. First operand has 69 places, 172 transitions, 1747 flow. Second operand 6 states and 636 transitions. [2021-04-28 14:40:31,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 206 transitions, 2576 flow [2021-04-28 14:40:31,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 206 transitions, 1909 flow, removed 292 selfloop flow, removed 6 redundant places. [2021-04-28 14:40:31,578 INFO L241 Difference]: Finished difference. Result has 70 places, 178 transitions, 1490 flow [2021-04-28 14:40:31,578 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1285, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1490, PETRI_PLACES=70, PETRI_TRANSITIONS=178} [2021-04-28 14:40:31,579 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -5 predicate places. [2021-04-28 14:40:31,579 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:31,579 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 178 transitions, 1490 flow [2021-04-28 14:40:31,579 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 178 transitions, 1490 flow [2021-04-28 14:40:31,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 178 transitions, 1490 flow [2021-04-28 14:40:31,701 INFO L129 PetriNetUnfolder]: 665/991 cut-off events. [2021-04-28 14:40:31,701 INFO L130 PetriNetUnfolder]: For 2080/2080 co-relation queries the response was YES. [2021-04-28 14:40:31,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5129 conditions, 991 events. 665/991 cut-off events. For 2080/2080 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 4322 event pairs, 0 based on Foata normal form. 0/293 useless extension candidates. Maximal degree in co-relation 5105. Up to 646 conditions per place. [2021-04-28 14:40:31,719 INFO L146 LiptonReduction]: Number of co-enabled transitions 2318 [2021-04-28 14:40:31,745 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:31,745 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:31,746 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 167 [2021-04-28 14:40:31,746 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 178 transitions, 1490 flow [2021-04-28 14:40:31,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 100.0) internal successors, (900), 9 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:31,747 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:31,747 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:31,961 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:31,961 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:31,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:31,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1509540365, now seen corresponding path program 2 times [2021-04-28 14:40:31,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:31,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295009481] [2021-04-28 14:40:31,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:31,992 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:31,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,003 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:32,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:32,016 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-04-28 14:40:32,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:32,033 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:40:32,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:32,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295009481] [2021-04-28 14:40:32,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31748296] [2021-04-28 14:40:32,048 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 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 [2021-04-28 14:40:32,148 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:40:32,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:32,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-28 14:40:32,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:32,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:32,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:32,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:32,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:32,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:32,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:32,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:32,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:32,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:32,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:32,232 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-04-28 14:40:32,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:32,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:32,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:32,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:32,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:32,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:32,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:32,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:32,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:32,272 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:32,273 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:32,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:32,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:32,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:32,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-04-28 14:40:32,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481265674] [2021-04-28 14:40:32,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-04-28 14:40:32,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:32,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-04-28 14:40:32,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-04-28 14:40:32,288 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:32,290 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 178 transitions, 1490 flow. Second operand has 9 states, 9 states have (on average 100.0) internal successors, (900), 9 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:32,290 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:32,290 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:32,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:32,655 INFO L129 PetriNetUnfolder]: 705/1099 cut-off events. [2021-04-28 14:40:32,655 INFO L130 PetriNetUnfolder]: For 3046/3088 co-relation queries the response was YES. [2021-04-28 14:40:32,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6486 conditions, 1099 events. 705/1099 cut-off events. For 3046/3088 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 5165 event pairs, 0 based on Foata normal form. 30/348 useless extension candidates. Maximal degree in co-relation 6460. Up to 788 conditions per place. [2021-04-28 14:40:32,675 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 114 selfloop transitions, 71 changer transitions 3/207 dead transitions. [2021-04-28 14:40:32,675 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 207 transitions, 2094 flow [2021-04-28 14:40:32,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 14:40:32,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 14:40:32,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 744 transitions. [2021-04-28 14:40:32,679 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5872138910812944 [2021-04-28 14:40:32,679 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 744 transitions. [2021-04-28 14:40:32,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 744 transitions. [2021-04-28 14:40:32,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:32,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 744 transitions. [2021-04-28 14:40:32,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 106.28571428571429) internal successors, (744), 7 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:32,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:32,686 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:32,686 INFO L185 Difference]: Start difference. First operand has 70 places, 178 transitions, 1490 flow. Second operand 7 states and 744 transitions. [2021-04-28 14:40:32,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 207 transitions, 2094 flow [2021-04-28 14:40:32,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 207 transitions, 2042 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 14:40:32,753 INFO L241 Difference]: Finished difference. Result has 74 places, 179 transitions, 1666 flow [2021-04-28 14:40:32,753 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1438, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1666, PETRI_PLACES=74, PETRI_TRANSITIONS=179} [2021-04-28 14:40:32,754 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -1 predicate places. [2021-04-28 14:40:32,755 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:32,755 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 179 transitions, 1666 flow [2021-04-28 14:40:32,756 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 179 transitions, 1666 flow [2021-04-28 14:40:32,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 179 transitions, 1666 flow [2021-04-28 14:40:32,868 INFO L129 PetriNetUnfolder]: 690/1042 cut-off events. [2021-04-28 14:40:32,868 INFO L130 PetriNetUnfolder]: For 2483/2483 co-relation queries the response was YES. [2021-04-28 14:40:32,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5776 conditions, 1042 events. 690/1042 cut-off events. For 2483/2483 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 4700 event pairs, 0 based on Foata normal form. 0/306 useless extension candidates. Maximal degree in co-relation 5751. Up to 680 conditions per place. [2021-04-28 14:40:32,888 INFO L146 LiptonReduction]: Number of co-enabled transitions 2332 [2021-04-28 14:40:32,911 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:32,912 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:32,912 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 157 [2021-04-28 14:40:32,913 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 179 transitions, 1666 flow [2021-04-28 14:40:32,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 100.0) internal successors, (900), 9 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:32,914 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:32,914 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:33,127 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:33,127 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:33,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:33,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1509476412, now seen corresponding path program 1 times [2021-04-28 14:40:33,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:33,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602620438] [2021-04-28 14:40:33,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:33,179 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:33,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,191 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:33,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,205 INFO L142 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size [2021-04-28 14:40:33,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:33,230 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:33,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:33,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602620438] [2021-04-28 14:40:33,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927589018] [2021-04-28 14:40:33,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-04-28 14:40:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:33,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-28 14:40:33,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:33,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:33,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:33,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:33,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:33,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:33,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:33,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:33,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:33,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:40:33,486 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-04-28 14:40:33,488 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:33,489 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:33,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:33,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:33,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:33,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-04-28 14:40:33,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775320105] [2021-04-28 14:40:33,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-04-28 14:40:33,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:33,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-04-28 14:40:33,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-04-28 14:40:33,520 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:33,521 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 179 transitions, 1666 flow. Second operand has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:33,522 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:33,522 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:33,522 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:34,247 INFO L129 PetriNetUnfolder]: 818/1286 cut-off events. [2021-04-28 14:40:34,247 INFO L130 PetriNetUnfolder]: For 4886/4916 co-relation queries the response was YES. [2021-04-28 14:40:34,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8052 conditions, 1286 events. 818/1286 cut-off events. For 4886/4916 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 6249 event pairs, 0 based on Foata normal form. 50/417 useless extension candidates. Maximal degree in co-relation 8025. Up to 864 conditions per place. [2021-04-28 14:40:34,268 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 119 selfloop transitions, 116 changer transitions 9/263 dead transitions. [2021-04-28 14:40:34,269 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 263 transitions, 3102 flow [2021-04-28 14:40:34,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-28 14:40:34,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-04-28 14:40:34,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1281 transitions. [2021-04-28 14:40:34,275 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5897790055248618 [2021-04-28 14:40:34,276 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1281 transitions. [2021-04-28 14:40:34,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1281 transitions. [2021-04-28 14:40:34,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:34,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1281 transitions. [2021-04-28 14:40:34,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 106.75) internal successors, (1281), 12 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:34,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 181.0) internal successors, (2353), 13 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:34,286 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 181.0) internal successors, (2353), 13 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:34,286 INFO L185 Difference]: Start difference. First operand has 74 places, 179 transitions, 1666 flow. Second operand 12 states and 1281 transitions. [2021-04-28 14:40:34,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 263 transitions, 3102 flow [2021-04-28 14:40:34,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 263 transitions, 2902 flow, removed 30 selfloop flow, removed 6 redundant places. [2021-04-28 14:40:34,337 INFO L241 Difference]: Finished difference. Result has 83 places, 234 transitions, 2543 flow [2021-04-28 14:40:34,337 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1522, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2543, PETRI_PLACES=83, PETRI_TRANSITIONS=234} [2021-04-28 14:40:34,337 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 8 predicate places. [2021-04-28 14:40:34,338 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:34,338 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 234 transitions, 2543 flow [2021-04-28 14:40:34,338 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 234 transitions, 2543 flow [2021-04-28 14:40:34,341 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 234 transitions, 2543 flow [2021-04-28 14:40:34,525 INFO L129 PetriNetUnfolder]: 809/1277 cut-off events. [2021-04-28 14:40:34,526 INFO L130 PetriNetUnfolder]: For 3544/3544 co-relation queries the response was YES. [2021-04-28 14:40:34,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7470 conditions, 1277 events. 809/1277 cut-off events. For 3544/3544 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 6479 event pairs, 0 based on Foata normal form. 0/367 useless extension candidates. Maximal degree in co-relation 7442. Up to 855 conditions per place. [2021-04-28 14:40:34,548 INFO L146 LiptonReduction]: Number of co-enabled transitions 2798 [2021-04-28 14:40:34,589 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:34,589 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:34,589 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 251 [2021-04-28 14:40:34,591 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 234 transitions, 2543 flow [2021-04-28 14:40:34,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:34,592 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:34,593 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:34,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:34,805 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:34,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:34,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1041443248, now seen corresponding path program 1 times [2021-04-28 14:40:34,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:34,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873793913] [2021-04-28 14:40:34,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:34,865 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:34,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:34,877 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:40:34,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:34,891 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:40:34,893 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:40:34,924 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:34,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:34,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:34,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873793913] [2021-04-28 14:40:34,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:34,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 14:40:34,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428915275] [2021-04-28 14:40:34,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 14:40:34,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:34,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 14:40:34,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 14:40:34,944 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:34,945 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 234 transitions, 2543 flow. Second operand has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:34,945 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:34,945 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:34,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:35,338 INFO L129 PetriNetUnfolder]: 829/1317 cut-off events. [2021-04-28 14:40:35,339 INFO L130 PetriNetUnfolder]: For 5615/5657 co-relation queries the response was YES. [2021-04-28 14:40:35,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8861 conditions, 1317 events. 829/1317 cut-off events. For 5615/5657 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 6600 event pairs, 0 based on Foata normal form. 26/402 useless extension candidates. Maximal degree in co-relation 8831. Up to 983 conditions per place. [2021-04-28 14:40:35,370 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 171 selfloop transitions, 67 changer transitions 6/263 dead transitions. [2021-04-28 14:40:35,370 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 263 transitions, 3307 flow [2021-04-28 14:40:35,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 14:40:35,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 14:40:35,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 744 transitions. [2021-04-28 14:40:35,374 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5872138910812944 [2021-04-28 14:40:35,374 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 744 transitions. [2021-04-28 14:40:35,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 744 transitions. [2021-04-28 14:40:35,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:35,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 744 transitions. [2021-04-28 14:40:35,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 106.28571428571429) internal successors, (744), 7 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:35,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:35,381 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:35,381 INFO L185 Difference]: Start difference. First operand has 83 places, 234 transitions, 2543 flow. Second operand 7 states and 744 transitions. [2021-04-28 14:40:35,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 263 transitions, 3307 flow [2021-04-28 14:40:35,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 263 transitions, 2723 flow, removed 262 selfloop flow, removed 5 redundant places. [2021-04-28 14:40:35,438 INFO L241 Difference]: Finished difference. Result has 85 places, 232 transitions, 2159 flow [2021-04-28 14:40:35,439 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1999, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2159, PETRI_PLACES=85, PETRI_TRANSITIONS=232} [2021-04-28 14:40:35,439 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 10 predicate places. [2021-04-28 14:40:35,439 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:35,439 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 232 transitions, 2159 flow [2021-04-28 14:40:35,439 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 232 transitions, 2159 flow [2021-04-28 14:40:35,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 232 transitions, 2159 flow [2021-04-28 14:40:35,563 INFO L129 PetriNetUnfolder]: 799/1264 cut-off events. [2021-04-28 14:40:35,563 INFO L130 PetriNetUnfolder]: For 4422/4442 co-relation queries the response was YES. [2021-04-28 14:40:35,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6837 conditions, 1264 events. 799/1264 cut-off events. For 4422/4442 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 6383 event pairs, 0 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 6808. Up to 697 conditions per place. [2021-04-28 14:40:35,586 INFO L146 LiptonReduction]: Number of co-enabled transitions 2782 [2021-04-28 14:40:35,622 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:35,622 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:35,624 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 185 [2021-04-28 14:40:35,625 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 232 transitions, 2159 flow [2021-04-28 14:40:35,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:35,626 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:35,626 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:35,626 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 14:40:35,626 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:35,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:35,627 INFO L82 PathProgramCache]: Analyzing trace with hash 505669892, now seen corresponding path program 1 times [2021-04-28 14:40:35,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:35,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128078242] [2021-04-28 14:40:35,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:35,686 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:35,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,696 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:40:35,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:35,710 INFO L142 QuantifierPusher]: treesize reduction 12, result has 36.8 percent of original size [2021-04-28 14:40:35,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,726 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:35,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:35,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128078242] [2021-04-28 14:40:35,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:35,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 14:40:35,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19113664] [2021-04-28 14:40:35,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 14:40:35,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:35,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 14:40:35,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 14:40:35,744 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:35,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 232 transitions, 2159 flow. Second operand has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:35,745 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:35,745 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:35,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:36,213 INFO L129 PetriNetUnfolder]: 939/1527 cut-off events. [2021-04-28 14:40:36,213 INFO L130 PetriNetUnfolder]: For 8035/8097 co-relation queries the response was YES. [2021-04-28 14:40:36,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9541 conditions, 1527 events. 939/1527 cut-off events. For 8035/8097 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 8320 event pairs, 0 based on Foata normal form. 46/494 useless extension candidates. Maximal degree in co-relation 9510. Up to 1040 conditions per place. [2021-04-28 14:40:36,239 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 122 selfloop transitions, 146 changer transitions 0/287 dead transitions. [2021-04-28 14:40:36,239 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 287 transitions, 3319 flow [2021-04-28 14:40:36,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 14:40:36,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 14:40:36,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 957 transitions. [2021-04-28 14:40:36,244 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5874769797421732 [2021-04-28 14:40:36,244 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 957 transitions. [2021-04-28 14:40:36,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 957 transitions. [2021-04-28 14:40:36,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:36,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 957 transitions. [2021-04-28 14:40:36,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 106.33333333333333) internal successors, (957), 9 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:36,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 181.0) internal successors, (1810), 10 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:36,252 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 181.0) internal successors, (1810), 10 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:36,252 INFO L185 Difference]: Start difference. First operand has 85 places, 232 transitions, 2159 flow. Second operand 9 states and 957 transitions. [2021-04-28 14:40:36,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 287 transitions, 3319 flow [2021-04-28 14:40:36,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 287 transitions, 3191 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-04-28 14:40:36,322 INFO L241 Difference]: Finished difference. Result has 90 places, 267 transitions, 3003 flow [2021-04-28 14:40:36,323 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2035, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3003, PETRI_PLACES=90, PETRI_TRANSITIONS=267} [2021-04-28 14:40:36,323 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 15 predicate places. [2021-04-28 14:40:36,323 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:36,324 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 267 transitions, 3003 flow [2021-04-28 14:40:36,324 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 267 transitions, 3003 flow [2021-04-28 14:40:36,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 267 transitions, 3003 flow [2021-04-28 14:40:36,488 INFO L129 PetriNetUnfolder]: 939/1527 cut-off events. [2021-04-28 14:40:36,488 INFO L130 PetriNetUnfolder]: For 5850/5890 co-relation queries the response was YES. [2021-04-28 14:40:36,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9502 conditions, 1527 events. 939/1527 cut-off events. For 5850/5890 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 8431 event pairs, 0 based on Foata normal form. 0/444 useless extension candidates. Maximal degree in co-relation 9471. Up to 902 conditions per place. [2021-04-28 14:40:36,517 INFO L146 LiptonReduction]: Number of co-enabled transitions 3088 [2021-04-28 14:40:36,566 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:36,566 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:36,567 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 244 [2021-04-28 14:40:36,568 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 267 transitions, 3003 flow [2021-04-28 14:40:36,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:36,568 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:36,568 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:36,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 14:40:36,569 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:36,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:36,569 INFO L82 PathProgramCache]: Analyzing trace with hash 428174852, now seen corresponding path program 2 times [2021-04-28 14:40:36,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:36,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20223794] [2021-04-28 14:40:36,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:36,594 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:36,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,605 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:36,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:36,618 INFO L142 QuantifierPusher]: treesize reduction 12, result has 36.8 percent of original size [2021-04-28 14:40:36,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,634 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:36,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:36,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20223794] [2021-04-28 14:40:36,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:36,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 14:40:36,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436053930] [2021-04-28 14:40:36,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 14:40:36,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:36,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 14:40:36,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 14:40:36,651 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:36,652 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 267 transitions, 3003 flow. Second operand has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:36,652 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:36,652 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:36,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:37,177 INFO L129 PetriNetUnfolder]: 1059/1808 cut-off events. [2021-04-28 14:40:37,178 INFO L130 PetriNetUnfolder]: For 8984/9034 co-relation queries the response was YES. [2021-04-28 14:40:37,184 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12664 conditions, 1808 events. 1059/1808 cut-off events. For 8984/9034 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 11041 event pairs, 0 based on Foata normal form. 42/571 useless extension candidates. Maximal degree in co-relation 12631. Up to 1195 conditions per place. [2021-04-28 14:40:37,203 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 150 selfloop transitions, 154 changer transitions 0/323 dead transitions. [2021-04-28 14:40:37,203 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 323 transitions, 4359 flow [2021-04-28 14:40:37,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 14:40:37,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 14:40:37,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 957 transitions. [2021-04-28 14:40:37,208 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5874769797421732 [2021-04-28 14:40:37,208 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 957 transitions. [2021-04-28 14:40:37,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 957 transitions. [2021-04-28 14:40:37,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:37,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 957 transitions. [2021-04-28 14:40:37,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 106.33333333333333) internal successors, (957), 9 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:37,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 181.0) internal successors, (1810), 10 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:37,216 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 181.0) internal successors, (1810), 10 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:37,216 INFO L185 Difference]: Start difference. First operand has 90 places, 267 transitions, 3003 flow. Second operand 9 states and 957 transitions. [2021-04-28 14:40:37,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 323 transitions, 4359 flow [2021-04-28 14:40:37,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 323 transitions, 4201 flow, removed 42 selfloop flow, removed 5 redundant places. [2021-04-28 14:40:37,307 INFO L241 Difference]: Finished difference. Result has 96 places, 303 transitions, 3939 flow [2021-04-28 14:40:37,307 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2850, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3939, PETRI_PLACES=96, PETRI_TRANSITIONS=303} [2021-04-28 14:40:37,307 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 21 predicate places. [2021-04-28 14:40:37,308 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:37,308 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 303 transitions, 3939 flow [2021-04-28 14:40:37,308 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 303 transitions, 3939 flow [2021-04-28 14:40:37,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 303 transitions, 3939 flow [2021-04-28 14:40:37,519 INFO L129 PetriNetUnfolder]: 1059/1804 cut-off events. [2021-04-28 14:40:37,519 INFO L130 PetriNetUnfolder]: For 6700/6720 co-relation queries the response was YES. [2021-04-28 14:40:37,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12604 conditions, 1804 events. 1059/1804 cut-off events. For 6700/6720 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 11174 event pairs, 0 based on Foata normal form. 0/528 useless extension candidates. Maximal degree in co-relation 12570. Up to 1067 conditions per place. [2021-04-28 14:40:37,553 INFO L146 LiptonReduction]: Number of co-enabled transitions 3402 [2021-04-28 14:40:37,609 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:37,609 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:37,609 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 301 [2021-04-28 14:40:37,610 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 303 transitions, 3939 flow [2021-04-28 14:40:37,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:37,611 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:37,611 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:37,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 14:40:37,611 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:37,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:37,612 INFO L82 PathProgramCache]: Analyzing trace with hash 436459670, now seen corresponding path program 1 times [2021-04-28 14:40:37,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:37,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156122423] [2021-04-28 14:40:37,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:37,637 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:37,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,647 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:40:37,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:37,660 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:40:37,661 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:40:37,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:37,708 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:37,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:37,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156122423] [2021-04-28 14:40:37,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876587816] [2021-04-28 14:40:37,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-04-28 14:40:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:37,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:37,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:37,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:37,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:37,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:37,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:37,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:37,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:37,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:37,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:37,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:37,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:37,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:37,907 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:40:37,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:37,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:37,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:37,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:37,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:37,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:37,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:37,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:37,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:37,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:37,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:37,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:37,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:37,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:37,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:37,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:37,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:37,992 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:37,993 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:37,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:38,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:38,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:38,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-04-28 14:40:38,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781612208] [2021-04-28 14:40:38,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-28 14:40:38,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:38,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-28 14:40:38,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-04-28 14:40:38,021 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:38,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 303 transitions, 3939 flow. Second operand has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:38,032 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:38,032 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:38,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:38,666 INFO L129 PetriNetUnfolder]: 1079/1868 cut-off events. [2021-04-28 14:40:38,667 INFO L130 PetriNetUnfolder]: For 9223/9273 co-relation queries the response was YES. [2021-04-28 14:40:38,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14554 conditions, 1868 events. 1079/1868 cut-off events. For 9223/9273 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 11683 event pairs, 0 based on Foata normal form. 22/565 useless extension candidates. Maximal degree in co-relation 14518. Up to 1342 conditions per place. [2021-04-28 14:40:38,694 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 229 selfloop transitions, 95 changer transitions 9/352 dead transitions. [2021-04-28 14:40:38,695 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 352 transitions, 5170 flow [2021-04-28 14:40:38,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-28 14:40:38,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-04-28 14:40:38,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1059 transitions. [2021-04-28 14:40:38,700 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5850828729281768 [2021-04-28 14:40:38,700 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1059 transitions. [2021-04-28 14:40:38,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1059 transitions. [2021-04-28 14:40:38,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:38,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1059 transitions. [2021-04-28 14:40:38,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 105.9) internal successors, (1059), 10 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:38,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 181.0) internal successors, (1991), 11 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) [2021-04-28 14:40:38,709 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 181.0) internal successors, (1991), 11 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) [2021-04-28 14:40:38,709 INFO L185 Difference]: Start difference. First operand has 96 places, 303 transitions, 3939 flow. Second operand 10 states and 1059 transitions. [2021-04-28 14:40:38,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 352 transitions, 5170 flow [2021-04-28 14:40:38,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 352 transitions, 4960 flow, removed 74 selfloop flow, removed 5 redundant places. [2021-04-28 14:40:38,845 INFO L241 Difference]: Finished difference. Result has 103 places, 313 transitions, 4121 flow [2021-04-28 14:40:38,845 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=3744, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4121, PETRI_PLACES=103, PETRI_TRANSITIONS=313} [2021-04-28 14:40:38,846 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 28 predicate places. [2021-04-28 14:40:38,846 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:38,846 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 313 transitions, 4121 flow [2021-04-28 14:40:38,846 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 313 transitions, 4121 flow [2021-04-28 14:40:38,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 313 transitions, 4121 flow [2021-04-28 14:40:39,117 INFO L129 PetriNetUnfolder]: 1034/1796 cut-off events. [2021-04-28 14:40:39,117 INFO L130 PetriNetUnfolder]: For 6575/6615 co-relation queries the response was YES. [2021-04-28 14:40:39,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12479 conditions, 1796 events. 1034/1796 cut-off events. For 6575/6615 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 11406 event pairs, 0 based on Foata normal form. 0/537 useless extension candidates. Maximal degree in co-relation 12442. Up to 1047 conditions per place. [2021-04-28 14:40:39,149 INFO L146 LiptonReduction]: Number of co-enabled transitions 3542 [2021-04-28 14:40:39,201 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:39,201 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:39,201 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 355 [2021-04-28 14:40:39,202 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 313 transitions, 4121 flow [2021-04-28 14:40:39,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:39,203 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:39,203 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:39,416 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-04-28 14:40:39,417 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:39,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:39,417 INFO L82 PathProgramCache]: Analyzing trace with hash -480604288, now seen corresponding path program 1 times [2021-04-28 14:40:39,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:39,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059952975] [2021-04-28 14:40:39,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:39,445 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:39,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:39,454 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:39,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:39,467 INFO L142 QuantifierPusher]: treesize reduction 13, result has 45.8 percent of original size [2021-04-28 14:40:39,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:39,482 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-04-28 14:40:39,483 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-04-28 14:40:39,514 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:40:39,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:39,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:39,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059952975] [2021-04-28 14:40:39,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950135765] [2021-04-28 14:40:39,529 INFO L95 rtionOrderModulation]: Keeping assertion order 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 [2021-04-28 14:40:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:39,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:39,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:39,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:39,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:39,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:39,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:39,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:39,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:39,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:39,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:39,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:39,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:39,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:39,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:39,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:39,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:39,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:39,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:39,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:39,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:39,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:39,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:39,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:39,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:39,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:39,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:39,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:39,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:39,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:39,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:39,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:39,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:39,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:39,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:39,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:39,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:39,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:39,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:39,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:39,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:39,737 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-04-28 14:40:39,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:40:39,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:40:39,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:39,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:39,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:39,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:39,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:39,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:39,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:39,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:39,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:39,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:39,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:39,800 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:39,800 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:39,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:39,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:39,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:39,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-04-28 14:40:39,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726007461] [2021-04-28 14:40:39,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-28 14:40:39,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:39,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-28 14:40:39,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-04-28 14:40:39,817 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:39,818 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 313 transitions, 4121 flow. Second operand has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:39,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:39,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:39,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:40,435 INFO L129 PetriNetUnfolder]: 1074/1893 cut-off events. [2021-04-28 14:40:40,435 INFO L130 PetriNetUnfolder]: For 9444/9514 co-relation queries the response was YES. [2021-04-28 14:40:40,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14727 conditions, 1893 events. 1074/1893 cut-off events. For 9444/9514 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 12179 event pairs, 0 based on Foata normal form. 22/582 useless extension candidates. Maximal degree in co-relation 14688. Up to 1358 conditions per place. [2021-04-28 14:40:40,460 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 216 selfloop transitions, 108 changer transitions 3/346 dead transitions. [2021-04-28 14:40:40,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 346 transitions, 5205 flow [2021-04-28 14:40:40,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 14:40:40,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 14:40:40,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 956 transitions. [2021-04-28 14:40:40,465 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5868631062001227 [2021-04-28 14:40:40,465 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 956 transitions. [2021-04-28 14:40:40,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 956 transitions. [2021-04-28 14:40:40,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:40,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 956 transitions. [2021-04-28 14:40:40,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 106.22222222222223) internal successors, (956), 9 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:40,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 181.0) internal successors, (1810), 10 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:40,513 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 181.0) internal successors, (1810), 10 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:40,514 INFO L185 Difference]: Start difference. First operand has 103 places, 313 transitions, 4121 flow. Second operand 9 states and 956 transitions. [2021-04-28 14:40:40,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 346 transitions, 5205 flow [2021-04-28 14:40:40,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 346 transitions, 5005 flow, removed 40 selfloop flow, removed 6 redundant places. [2021-04-28 14:40:40,628 INFO L241 Difference]: Finished difference. Result has 106 places, 318 transitions, 4378 flow [2021-04-28 14:40:40,629 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=3945, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4378, PETRI_PLACES=106, PETRI_TRANSITIONS=318} [2021-04-28 14:40:40,629 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 31 predicate places. [2021-04-28 14:40:40,629 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:40,629 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 318 transitions, 4378 flow [2021-04-28 14:40:40,630 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 318 transitions, 4378 flow [2021-04-28 14:40:40,633 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 318 transitions, 4378 flow [2021-04-28 14:40:40,853 INFO L129 PetriNetUnfolder]: 1059/1871 cut-off events. [2021-04-28 14:40:40,854 INFO L130 PetriNetUnfolder]: For 7359/7399 co-relation queries the response was YES. [2021-04-28 14:40:40,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13121 conditions, 1871 events. 1059/1871 cut-off events. For 7359/7399 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 12139 event pairs, 0 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 13084. Up to 1072 conditions per place. [2021-04-28 14:40:40,886 INFO L146 LiptonReduction]: Number of co-enabled transitions 3582 [2021-04-28 14:40:40,935 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:40,935 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:40,935 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 306 [2021-04-28 14:40:40,936 INFO L480 AbstractCegarLoop]: Abstraction has has 106 places, 318 transitions, 4378 flow [2021-04-28 14:40:40,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:40,937 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:40,937 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:41,150 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:41,151 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:41,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:41,152 INFO L82 PathProgramCache]: Analyzing trace with hash 2077052564, now seen corresponding path program 2 times [2021-04-28 14:40:41,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:41,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617000977] [2021-04-28 14:40:41,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:41,177 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:41,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,195 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:40:41,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,208 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-04-28 14:40:41,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,222 INFO L142 QuantifierPusher]: treesize reduction 8, result has 57.9 percent of original size [2021-04-28 14:40:41,224 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:41,248 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:41,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:41,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617000977] [2021-04-28 14:40:41,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272415468] [2021-04-28 14:40:41,264 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 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 [2021-04-28 14:40:41,371 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:40:41,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:41,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:41,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:41,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:41,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:41,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:41,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:41,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:41,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:41,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:41,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:41,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:41,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:41,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:41,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:41,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:41,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:41,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:41,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:41,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:41,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:41,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:41,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:41,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:41,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:40:41,523 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-04-28 14:40:41,527 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:41,527 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:41,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:41,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:41,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:41,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-04-28 14:40:41,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681205921] [2021-04-28 14:40:41,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-28 14:40:41,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:41,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-28 14:40:41,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-04-28 14:40:41,549 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:41,551 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 318 transitions, 4378 flow. Second operand has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:41,551 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:41,551 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:41,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:42,802 INFO L129 PetriNetUnfolder]: 1419/2638 cut-off events. [2021-04-28 14:40:42,802 INFO L130 PetriNetUnfolder]: For 17219/17301 co-relation queries the response was YES. [2021-04-28 14:40:42,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20989 conditions, 2638 events. 1419/2638 cut-off events. For 17219/17301 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 19091 event pairs, 0 based on Foata normal form. 106/876 useless extension candidates. Maximal degree in co-relation 20950. Up to 1647 conditions per place. [2021-04-28 14:40:42,835 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 41 selfloop transitions, 365 changer transitions 9/434 dead transitions. [2021-04-28 14:40:42,835 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 434 transitions, 7354 flow [2021-04-28 14:40:42,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-28 14:40:42,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-04-28 14:40:42,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1920 transitions. [2021-04-28 14:40:42,842 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5893186003683242 [2021-04-28 14:40:42,842 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1920 transitions. [2021-04-28 14:40:42,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1920 transitions. [2021-04-28 14:40:42,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:42,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1920 transitions. [2021-04-28 14:40:42,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 106.66666666666667) internal successors, (1920), 18 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:42,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 181.0) internal successors, (3439), 19 states have internal predecessors, (3439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:42,858 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 181.0) internal successors, (3439), 19 states have internal predecessors, (3439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:42,858 INFO L185 Difference]: Start difference. First operand has 106 places, 318 transitions, 4378 flow. Second operand 18 states and 1920 transitions. [2021-04-28 14:40:42,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 434 transitions, 7354 flow [2021-04-28 14:40:43,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 434 transitions, 7150 flow, removed 10 selfloop flow, removed 8 redundant places. [2021-04-28 14:40:43,119 INFO L241 Difference]: Finished difference. Result has 120 places, 420 transitions, 7186 flow [2021-04-28 14:40:43,120 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=4186, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=280, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7186, PETRI_PLACES=120, PETRI_TRANSITIONS=420} [2021-04-28 14:40:43,120 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 45 predicate places. [2021-04-28 14:40:43,120 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:43,120 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 420 transitions, 7186 flow [2021-04-28 14:40:43,121 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 420 transitions, 7186 flow [2021-04-28 14:40:43,125 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 120 places, 420 transitions, 7186 flow [2021-04-28 14:40:43,472 INFO L129 PetriNetUnfolder]: 1374/2541 cut-off events. [2021-04-28 14:40:43,472 INFO L130 PetriNetUnfolder]: For 12143/12223 co-relation queries the response was YES. [2021-04-28 14:40:43,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20991 conditions, 2541 events. 1374/2541 cut-off events. For 12143/12223 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 18663 event pairs, 0 based on Foata normal form. 0/753 useless extension candidates. Maximal degree in co-relation 20950. Up to 1602 conditions per place. [2021-04-28 14:40:43,509 INFO L146 LiptonReduction]: Number of co-enabled transitions 4480 [2021-04-28 14:40:43,609 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:43,609 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:43,610 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 489 [2021-04-28 14:40:43,610 INFO L480 AbstractCegarLoop]: Abstraction has has 120 places, 420 transitions, 7186 flow [2021-04-28 14:40:43,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:43,612 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:43,612 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:43,826 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-04-28 14:40:43,826 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:43,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:43,827 INFO L82 PathProgramCache]: Analyzing trace with hash 821686413, now seen corresponding path program 2 times [2021-04-28 14:40:43,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:43,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056109125] [2021-04-28 14:40:43,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:43,856 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:43,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:43,866 INFO L142 QuantifierPusher]: treesize reduction 7, result has 56.3 percent of original size [2021-04-28 14:40:43,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:43,878 INFO L142 QuantifierPusher]: treesize reduction 7, result has 61.1 percent of original size [2021-04-28 14:40:43,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:43,892 INFO L142 QuantifierPusher]: treesize reduction 7, result has 61.1 percent of original size [2021-04-28 14:40:43,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:43,909 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-04-28 14:40:43,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:43,951 INFO L142 QuantifierPusher]: treesize reduction 10, result has 41.2 percent of original size [2021-04-28 14:40:43,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:43,966 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:43,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056109125] [2021-04-28 14:40:43,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643100862] [2021-04-28 14:40:43,967 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 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 [2021-04-28 14:40:44,069 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:40:44,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:44,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:44,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:44,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:44,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:44,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:44,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:44,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:44,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:44,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:44,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:44,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:44,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:44,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:44,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:44,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:44,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:44,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:44,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:44,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:44,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:44,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:44,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:44,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:44,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:44,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:44,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:44,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:44,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:44,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:44,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:44,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:44,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:44,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:44,266 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-04-28 14:40:44,267 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-28 14:40:44,268 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:44,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:44,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:44,310 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:44,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:44,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:40:44,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434015890] [2021-04-28 14:40:44,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:40:44,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:44,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:40:44,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:40:44,315 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:44,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 420 transitions, 7186 flow. Second operand has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:44,317 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:44,317 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:44,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:45,340 INFO L129 PetriNetUnfolder]: 1644/2976 cut-off events. [2021-04-28 14:40:45,341 INFO L130 PetriNetUnfolder]: For 16447/16529 co-relation queries the response was YES. [2021-04-28 14:40:45,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27282 conditions, 2976 events. 1644/2976 cut-off events. For 16447/16529 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 21155 event pairs, 0 based on Foata normal form. 21/891 useless extension candidates. Maximal degree in co-relation 27239. Up to 2189 conditions per place. [2021-04-28 14:40:45,380 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 292 selfloop transitions, 198 changer transitions 0/509 dead transitions. [2021-04-28 14:40:45,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 509 transitions, 9952 flow [2021-04-28 14:40:45,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-28 14:40:45,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-04-28 14:40:45,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1600 transitions. [2021-04-28 14:40:45,385 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5893186003683242 [2021-04-28 14:40:45,385 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1600 transitions. [2021-04-28 14:40:45,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1600 transitions. [2021-04-28 14:40:45,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:45,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1600 transitions. [2021-04-28 14:40:45,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 106.66666666666667) internal successors, (1600), 15 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:45,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 181.0) internal successors, (2896), 16 states have internal predecessors, (2896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:45,395 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 181.0) internal successors, (2896), 16 states have internal predecessors, (2896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:45,395 INFO L185 Difference]: Start difference. First operand has 120 places, 420 transitions, 7186 flow. Second operand 15 states and 1600 transitions. [2021-04-28 14:40:45,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 509 transitions, 9952 flow [2021-04-28 14:40:45,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 509 transitions, 8212 flow, removed 736 selfloop flow, removed 12 redundant places. [2021-04-28 14:40:45,835 INFO L241 Difference]: Finished difference. Result has 125 places, 509 transitions, 7786 flow [2021-04-28 14:40:45,836 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=5998, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7786, PETRI_PLACES=125, PETRI_TRANSITIONS=509} [2021-04-28 14:40:45,836 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 50 predicate places. [2021-04-28 14:40:45,836 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:45,836 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 509 transitions, 7786 flow [2021-04-28 14:40:45,837 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 509 transitions, 7786 flow [2021-04-28 14:40:45,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 125 places, 509 transitions, 7786 flow [2021-04-28 14:40:46,151 INFO L129 PetriNetUnfolder]: 1644/2932 cut-off events. [2021-04-28 14:40:46,151 INFO L130 PetriNetUnfolder]: For 12388/12434 co-relation queries the response was YES. [2021-04-28 14:40:46,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21143 conditions, 2932 events. 1644/2932 cut-off events. For 12388/12434 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 20720 event pairs, 0 based on Foata normal form. 0/857 useless extension candidates. Maximal degree in co-relation 21102. Up to 1425 conditions per place. [2021-04-28 14:40:46,197 INFO L146 LiptonReduction]: Number of co-enabled transitions 5526 [2021-04-28 14:40:46,268 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:46,268 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:46,268 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 432 [2021-04-28 14:40:46,269 INFO L480 AbstractCegarLoop]: Abstraction has has 125 places, 509 transitions, 7786 flow [2021-04-28 14:40:46,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:46,270 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:46,270 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:46,484 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-04-28 14:40:46,485 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:46,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:46,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1734478013, now seen corresponding path program 1 times [2021-04-28 14:40:46,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:46,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049644703] [2021-04-28 14:40:46,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:46,516 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:46,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,534 INFO L142 QuantifierPusher]: treesize reduction 16, result has 38.5 percent of original size [2021-04-28 14:40:46,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:46,557 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-04-28 14:40:46,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:46,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:46,602 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:40:46,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:46,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049644703] [2021-04-28 14:40:46,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525488659] [2021-04-28 14:40:46,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-04-28 14:40:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:46,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:46,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:46,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:46,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:46,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:46,757 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-04-28 14:40:46,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:46,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:46,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:46,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:46,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:46,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:46,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:46,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:46,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:46,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:46,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:46,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:46,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:46,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:46,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:46,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:46,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:46,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:46,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:46,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:46,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:46,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:46,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:46,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:46,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:46,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:46,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:46,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:46,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:46,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:46,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:46,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:46,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:46,862 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:46,863 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:46,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:46,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:46,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:46,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-04-28 14:40:46,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793948277] [2021-04-28 14:40:46,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-28 14:40:46,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:46,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-28 14:40:46,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-04-28 14:40:46,879 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:46,880 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 509 transitions, 7786 flow. Second operand has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:46,880 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:46,880 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:46,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:47,631 INFO L129 PetriNetUnfolder]: 1737/3118 cut-off events. [2021-04-28 14:40:47,631 INFO L130 PetriNetUnfolder]: For 15543/15625 co-relation queries the response was YES. [2021-04-28 14:40:47,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24806 conditions, 3118 events. 1737/3118 cut-off events. For 15543/15625 co-relation queries the response was YES. Maximal size of possible extension queue 440. Compared 22237 event pairs, 0 based on Foata normal form. 26/933 useless extension candidates. Maximal degree in co-relation 24763. Up to 2360 conditions per place. [2021-04-28 14:40:47,670 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 492 selfloop transitions, 91 changer transitions 3/605 dead transitions. [2021-04-28 14:40:47,670 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 605 transitions, 10112 flow [2021-04-28 14:40:47,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-28 14:40:47,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-28 14:40:47,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 844 transitions. [2021-04-28 14:40:47,673 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5828729281767956 [2021-04-28 14:40:47,673 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 844 transitions. [2021-04-28 14:40:47,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 844 transitions. [2021-04-28 14:40:47,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:47,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 844 transitions. [2021-04-28 14:40:47,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 105.5) internal successors, (844), 8 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:47,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:47,679 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:47,679 INFO L185 Difference]: Start difference. First operand has 125 places, 509 transitions, 7786 flow. Second operand 8 states and 844 transitions. [2021-04-28 14:40:47,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 605 transitions, 10112 flow [2021-04-28 14:40:47,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 605 transitions, 9559 flow, removed 198 selfloop flow, removed 8 redundant places. [2021-04-28 14:40:47,988 INFO L241 Difference]: Finished difference. Result has 127 places, 537 transitions, 7985 flow [2021-04-28 14:40:47,989 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=7266, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7985, PETRI_PLACES=127, PETRI_TRANSITIONS=537} [2021-04-28 14:40:47,989 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 52 predicate places. [2021-04-28 14:40:47,990 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:47,990 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 537 transitions, 7985 flow [2021-04-28 14:40:47,990 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 537 transitions, 7985 flow [2021-04-28 14:40:47,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 537 transitions, 7985 flow [2021-04-28 14:40:48,359 INFO L129 PetriNetUnfolder]: 1722/3088 cut-off events. [2021-04-28 14:40:48,360 INFO L130 PetriNetUnfolder]: For 13289/13309 co-relation queries the response was YES. [2021-04-28 14:40:48,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22071 conditions, 3088 events. 1722/3088 cut-off events. For 13289/13309 co-relation queries the response was YES. Maximal size of possible extension queue 444. Compared 22305 event pairs, 0 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 22026. Up to 1439 conditions per place. [2021-04-28 14:40:48,407 INFO L146 LiptonReduction]: Number of co-enabled transitions 5774 [2021-04-28 14:40:48,503 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:48,503 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:48,503 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 514 [2021-04-28 14:40:48,504 INFO L480 AbstractCegarLoop]: Abstraction has has 127 places, 537 transitions, 7985 flow [2021-04-28 14:40:48,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:48,505 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:48,505 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:48,719 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-04-28 14:40:48,720 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:48,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:48,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1075626102, now seen corresponding path program 1 times [2021-04-28 14:40:48,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:48,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593850379] [2021-04-28 14:40:48,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:48,758 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:48,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,768 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:48,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,781 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-04-28 14:40:48,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,796 INFO L142 QuantifierPusher]: treesize reduction 12, result has 36.8 percent of original size [2021-04-28 14:40:48,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,812 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:48,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:48,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593850379] [2021-04-28 14:40:48,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974680787] [2021-04-28 14:40:48,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-04-28 14:40:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:48,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:48,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:48,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:48,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:48,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:48,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:48,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:49,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:49,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:49,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:49,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:49,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:49,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:49,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:49,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:49,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:49,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:49,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:49,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:49,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:49,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:49,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:49,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:49,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:49,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:49,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:49,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:49,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:49,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:49,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:49,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:49,098 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-04-28 14:40:49,099 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-28 14:40:49,100 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:49,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:49,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:49,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:49,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:49,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:49,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-04-28 14:40:49,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951448013] [2021-04-28 14:40:49,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-28 14:40:49,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:49,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-28 14:40:49,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-04-28 14:40:49,138 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:49,139 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 537 transitions, 7985 flow. Second operand has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:49,139 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:49,139 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:49,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:50,652 INFO L129 PetriNetUnfolder]: 2122/4039 cut-off events. [2021-04-28 14:40:50,652 INFO L130 PetriNetUnfolder]: For 34753/34815 co-relation queries the response was YES. [2021-04-28 14:40:50,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30772 conditions, 4039 events. 2122/4039 cut-off events. For 34753/34815 co-relation queries the response was YES. Maximal size of possible extension queue 576. Compared 32224 event pairs, 0 based on Foata normal form. 106/1278 useless extension candidates. Maximal degree in co-relation 30725. Up to 1984 conditions per place. [2021-04-28 14:40:50,690 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 204 selfloop transitions, 482 changer transitions 18/723 dead transitions. [2021-04-28 14:40:50,690 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 723 transitions, 11888 flow [2021-04-28 14:40:50,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-04-28 14:40:50,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-04-28 14:40:50,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1816 transitions. [2021-04-28 14:40:50,696 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5901852453688657 [2021-04-28 14:40:50,696 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1816 transitions. [2021-04-28 14:40:50,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1816 transitions. [2021-04-28 14:40:50,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:50,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1816 transitions. [2021-04-28 14:40:50,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 106.82352941176471) internal successors, (1816), 17 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:50,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 181.0) internal successors, (3258), 18 states have internal predecessors, (3258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:50,706 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 181.0) internal successors, (3258), 18 states have internal predecessors, (3258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:50,706 INFO L185 Difference]: Start difference. First operand has 127 places, 537 transitions, 7985 flow. Second operand 17 states and 1816 transitions. [2021-04-28 14:40:50,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 723 transitions, 11888 flow [2021-04-28 14:40:50,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 723 transitions, 11781 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-04-28 14:40:50,990 INFO L241 Difference]: Finished difference. Result has 145 places, 665 transitions, 11299 flow [2021-04-28 14:40:50,991 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=7890, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=368, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=11299, PETRI_PLACES=145, PETRI_TRANSITIONS=665} [2021-04-28 14:40:50,991 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 70 predicate places. [2021-04-28 14:40:50,991 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:50,992 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 665 transitions, 11299 flow [2021-04-28 14:40:50,992 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 665 transitions, 11299 flow [2021-04-28 14:40:51,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 145 places, 665 transitions, 11299 flow [2021-04-28 14:40:51,466 INFO L129 PetriNetUnfolder]: 2032/3905 cut-off events. [2021-04-28 14:40:51,466 INFO L130 PetriNetUnfolder]: For 19336/19402 co-relation queries the response was YES. [2021-04-28 14:40:51,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30629 conditions, 3905 events. 2032/3905 cut-off events. For 19336/19402 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 31704 event pairs, 0 based on Foata normal form. 0/1157 useless extension candidates. Maximal degree in co-relation 30578. Up to 1894 conditions per place. [2021-04-28 14:40:51,511 INFO L146 LiptonReduction]: Number of co-enabled transitions 6906 [2021-04-28 14:40:51,755 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:51,755 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:51,755 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 764 [2021-04-28 14:40:51,756 INFO L480 AbstractCegarLoop]: Abstraction has has 145 places, 665 transitions, 11299 flow [2021-04-28 14:40:51,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:51,757 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:51,757 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:51,970 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:51,971 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:51,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:51,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1733795455, now seen corresponding path program 3 times [2021-04-28 14:40:51,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:51,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921356447] [2021-04-28 14:40:51,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:52,006 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:52,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,020 INFO L142 QuantifierPusher]: treesize reduction 16, result has 38.5 percent of original size [2021-04-28 14:40:52,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:52,034 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-04-28 14:40:52,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:52,050 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:40:52,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:52,068 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:40:52,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:52,088 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:52,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,105 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:52,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921356447] [2021-04-28 14:40:52,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044602995] [2021-04-28 14:40:52,106 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 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 [2021-04-28 14:40:52,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-04-28 14:40:52,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:52,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:52,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:52,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:52,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:52,274 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-04-28 14:40:52,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:52,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:52,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:52,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:52,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:52,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:52,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:52,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:52,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:52,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:52,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:52,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:52,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:52,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:52,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:52,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:52,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:52,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:52,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:52,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:52,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:52,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:52,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:52,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:52,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:52,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:52,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:52,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:52,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:52,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:52,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:52,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:52,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:52,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:52,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,428 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:52,429 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:52,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:52,463 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:52,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:52,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:40:52,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982662519] [2021-04-28 14:40:52,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:40:52,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:52,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:40:52,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:40:52,467 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:52,469 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 665 transitions, 11299 flow. Second operand has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:52,469 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:52,469 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:52,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:53,458 INFO L129 PetriNetUnfolder]: 2072/4037 cut-off events. [2021-04-28 14:40:53,459 INFO L130 PetriNetUnfolder]: For 26442/26524 co-relation queries the response was YES. [2021-04-28 14:40:53,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34356 conditions, 4037 events. 2072/4037 cut-off events. For 26442/26524 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 32936 event pairs, 0 based on Foata normal form. 30/1222 useless extension candidates. Maximal degree in co-relation 34303. Up to 3005 conditions per place. [2021-04-28 14:40:53,493 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 628 selfloop transitions, 79 changer transitions 3/729 dead transitions. [2021-04-28 14:40:53,493 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 729 transitions, 13524 flow [2021-04-28 14:40:53,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-28 14:40:53,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-28 14:40:53,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 844 transitions. [2021-04-28 14:40:53,498 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5828729281767956 [2021-04-28 14:40:53,498 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 844 transitions. [2021-04-28 14:40:53,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 844 transitions. [2021-04-28 14:40:53,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:53,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 844 transitions. [2021-04-28 14:40:53,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 105.5) internal successors, (844), 8 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:53,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:53,503 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:53,503 INFO L185 Difference]: Start difference. First operand has 145 places, 665 transitions, 11299 flow. Second operand 8 states and 844 transitions. [2021-04-28 14:40:53,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 729 transitions, 13524 flow [2021-04-28 14:40:54,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 729 transitions, 12530 flow, removed 378 selfloop flow, removed 9 redundant places. [2021-04-28 14:40:54,186 INFO L241 Difference]: Finished difference. Result has 145 places, 671 transitions, 10699 flow [2021-04-28 14:40:54,187 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=10345, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=665, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10699, PETRI_PLACES=145, PETRI_TRANSITIONS=671} [2021-04-28 14:40:54,187 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 70 predicate places. [2021-04-28 14:40:54,187 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:54,187 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 671 transitions, 10699 flow [2021-04-28 14:40:54,187 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 671 transitions, 10699 flow [2021-04-28 14:40:54,194 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 145 places, 671 transitions, 10699 flow [2021-04-28 14:40:54,654 INFO L129 PetriNetUnfolder]: 2057/3924 cut-off events. [2021-04-28 14:40:54,655 INFO L130 PetriNetUnfolder]: For 19651/19693 co-relation queries the response was YES. [2021-04-28 14:40:54,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29516 conditions, 3924 events. 2057/3924 cut-off events. For 19651/19693 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 31648 event pairs, 0 based on Foata normal form. 0/1161 useless extension candidates. Maximal degree in co-relation 29463. Up to 1925 conditions per place. [2021-04-28 14:40:54,707 INFO L146 LiptonReduction]: Number of co-enabled transitions 6960 [2021-04-28 14:40:54,844 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:54,844 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:54,845 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 658 [2021-04-28 14:40:54,845 INFO L480 AbstractCegarLoop]: Abstraction has has 145 places, 671 transitions, 10699 flow [2021-04-28 14:40:54,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:54,846 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:54,846 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:55,052 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-04-28 14:40:55,053 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:55,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:55,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1031415731, now seen corresponding path program 4 times [2021-04-28 14:40:55,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:55,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483613335] [2021-04-28 14:40:55,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:55,092 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:55,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,101 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:55,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:55,114 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-04-28 14:40:55,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:55,130 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:40:55,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:55,148 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:40:55,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:55,175 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:55,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,194 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:55,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483613335] [2021-04-28 14:40:55,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011124512] [2021-04-28 14:40:55,195 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 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 [2021-04-28 14:40:55,388 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-28 14:40:55,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:55,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:55,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:55,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:55,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:55,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:55,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:55,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:55,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:55,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:55,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:55,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:55,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:55,469 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-04-28 14:40:55,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:55,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:55,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:55,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:55,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:55,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:55,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:55,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:55,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:55,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:55,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:55,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:55,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:55,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:55,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:55,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:55,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:55,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:55,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:55,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:55,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:55,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:55,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:55,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:55,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,594 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:55,595 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:55,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:55,633 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:55,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:55,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:40:55,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883273265] [2021-04-28 14:40:55,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:40:55,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:55,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:40:55,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:40:55,637 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:55,639 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 671 transitions, 10699 flow. Second operand has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:55,639 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:55,639 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:55,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:56,692 INFO L129 PetriNetUnfolder]: 2125/4118 cut-off events. [2021-04-28 14:40:56,693 INFO L130 PetriNetUnfolder]: For 26598/26660 co-relation queries the response was YES. [2021-04-28 14:40:56,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33573 conditions, 4118 events. 2125/4118 cut-off events. For 26598/26660 co-relation queries the response was YES. Maximal size of possible extension queue 602. Compared 33488 event pairs, 0 based on Foata normal form. 30/1242 useless extension candidates. Maximal degree in co-relation 33518. Up to 2924 conditions per place. [2021-04-28 14:40:56,807 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 583 selfloop transitions, 133 changer transitions 3/738 dead transitions. [2021-04-28 14:40:56,808 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 738 transitions, 12986 flow [2021-04-28 14:40:56,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 14:40:56,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 14:40:56,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 952 transitions. [2021-04-28 14:40:56,810 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5844076120319214 [2021-04-28 14:40:56,810 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 952 transitions. [2021-04-28 14:40:56,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 952 transitions. [2021-04-28 14:40:56,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:56,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 952 transitions. [2021-04-28 14:40:56,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 105.77777777777777) internal successors, (952), 9 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) [2021-04-28 14:40:56,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 181.0) internal successors, (1810), 10 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:56,815 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 181.0) internal successors, (1810), 10 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:56,816 INFO L185 Difference]: Start difference. First operand has 145 places, 671 transitions, 10699 flow. Second operand 9 states and 952 transitions. [2021-04-28 14:40:56,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 738 transitions, 12986 flow [2021-04-28 14:40:57,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 738 transitions, 12868 flow, removed 16 selfloop flow, removed 5 redundant places. [2021-04-28 14:40:57,229 INFO L241 Difference]: Finished difference. Result has 151 places, 690 transitions, 11326 flow [2021-04-28 14:40:57,230 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=10581, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=671, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=11326, PETRI_PLACES=151, PETRI_TRANSITIONS=690} [2021-04-28 14:40:57,230 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 76 predicate places. [2021-04-28 14:40:57,230 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:57,230 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 690 transitions, 11326 flow [2021-04-28 14:40:57,231 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 690 transitions, 11326 flow [2021-04-28 14:40:57,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 151 places, 690 transitions, 11326 flow [2021-04-28 14:40:57,736 INFO L129 PetriNetUnfolder]: 2110/4005 cut-off events. [2021-04-28 14:40:57,737 INFO L130 PetriNetUnfolder]: For 20889/20935 co-relation queries the response was YES. [2021-04-28 14:40:57,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30805 conditions, 4005 events. 2110/4005 cut-off events. For 20889/20935 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 32216 event pairs, 0 based on Foata normal form. 0/1180 useless extension candidates. Maximal degree in co-relation 30749. Up to 1980 conditions per place. [2021-04-28 14:40:57,789 INFO L146 LiptonReduction]: Number of co-enabled transitions 7142 [2021-04-28 14:40:58,023 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:58,023 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:58,023 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 793 [2021-04-28 14:40:58,024 INFO L480 AbstractCegarLoop]: Abstraction has has 151 places, 690 transitions, 11326 flow [2021-04-28 14:40:58,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:58,024 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:58,024 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:58,230 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:58,231 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:58,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:58,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1093083101, now seen corresponding path program 5 times [2021-04-28 14:40:58,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:58,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699437666] [2021-04-28 14:40:58,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:58,261 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:58,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,274 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:58,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:58,286 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:40:58,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:58,301 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:40:58,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:58,318 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:40:58,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:58,336 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:58,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,354 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:58,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699437666] [2021-04-28 14:40:58,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133085869] [2021-04-28 14:40:58,355 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 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 [2021-04-28 14:40:58,470 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-04-28 14:40:58,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:58,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:58,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:58,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:58,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:58,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:58,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:58,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:58,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:58,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:58,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:58,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:58,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:58,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:58,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:58,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:58,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:58,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:58,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:58,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:58,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:58,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:58,609 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-04-28 14:40:58,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:58,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:58,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:58,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:58,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:58,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:58,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:58,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:58,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:58,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:58,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:58,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:58,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:58,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:58,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:58,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:58,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:58,695 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:58,696 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:58,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:58,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:58,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:40:58,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136089226] [2021-04-28 14:40:58,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:40:58,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:58,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:40:58,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:40:58,737 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:40:58,738 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 690 transitions, 11326 flow. Second operand has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:58,738 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:58,738 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:40:58,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:00,013 INFO L129 PetriNetUnfolder]: 2178/4195 cut-off events. [2021-04-28 14:41:00,014 INFO L130 PetriNetUnfolder]: For 29975/30037 co-relation queries the response was YES. [2021-04-28 14:41:00,031 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34976 conditions, 4195 events. 2178/4195 cut-off events. For 29975/30037 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 34066 event pairs, 0 based on Foata normal form. 30/1261 useless extension candidates. Maximal degree in co-relation 34918. Up to 2899 conditions per place. [2021-04-28 14:41:00,056 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 549 selfloop transitions, 171 changer transitions 3/742 dead transitions. [2021-04-28 14:41:00,057 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 742 transitions, 13435 flow [2021-04-28 14:41:00,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-28 14:41:00,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-04-28 14:41:00,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1060 transitions. [2021-04-28 14:41:00,059 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.585635359116022 [2021-04-28 14:41:00,060 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1060 transitions. [2021-04-28 14:41:00,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1060 transitions. [2021-04-28 14:41:00,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:00,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1060 transitions. [2021-04-28 14:41:00,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:00,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 181.0) internal successors, (1991), 11 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) [2021-04-28 14:41:00,066 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 181.0) internal successors, (1991), 11 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) [2021-04-28 14:41:00,066 INFO L185 Difference]: Start difference. First operand has 151 places, 690 transitions, 11326 flow. Second operand 10 states and 1060 transitions. [2021-04-28 14:41:00,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 742 transitions, 13435 flow [2021-04-28 14:41:00,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 742 transitions, 13256 flow, removed 24 selfloop flow, removed 5 redundant places. [2021-04-28 14:41:00,580 INFO L241 Difference]: Finished difference. Result has 157 places, 704 transitions, 11926 flow [2021-04-28 14:41:00,580 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=11165, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=690, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11926, PETRI_PLACES=157, PETRI_TRANSITIONS=704} [2021-04-28 14:41:00,581 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 82 predicate places. [2021-04-28 14:41:00,581 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:00,581 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 704 transitions, 11926 flow [2021-04-28 14:41:00,581 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 704 transitions, 11926 flow [2021-04-28 14:41:00,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 157 places, 704 transitions, 11926 flow [2021-04-28 14:41:01,146 INFO L129 PetriNetUnfolder]: 2163/4086 cut-off events. [2021-04-28 14:41:01,146 INFO L130 PetriNetUnfolder]: For 22374/22426 co-relation queries the response was YES. [2021-04-28 14:41:01,167 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32029 conditions, 4086 events. 2163/4086 cut-off events. For 22374/22426 co-relation queries the response was YES. Maximal size of possible extension queue 620. Compared 32766 event pairs, 0 based on Foata normal form. 0/1199 useless extension candidates. Maximal degree in co-relation 31971. Up to 2035 conditions per place. [2021-04-28 14:41:01,213 INFO L146 LiptonReduction]: Number of co-enabled transitions 7284 [2021-04-28 14:41:01,404 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:01,404 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:01,404 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 823 [2021-04-28 14:41:01,405 INFO L480 AbstractCegarLoop]: Abstraction has has 157 places, 704 transitions, 11926 flow [2021-04-28 14:41:01,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:01,406 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:01,406 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:01,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-04-28 14:41:01,613 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:01,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:01,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1095073115, now seen corresponding path program 1 times [2021-04-28 14:41:01,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:01,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348712953] [2021-04-28 14:41:01,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:01,657 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:01,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,668 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:41:01,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:01,681 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:41:01,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:01,696 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:41:01,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:01,716 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:41:01,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:01,735 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:41:01,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,753 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:01,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348712953] [2021-04-28 14:41:01,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584733971] [2021-04-28 14:41:01,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-04-28 14:41:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:01,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:41:01,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:01,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:01,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:01,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:01,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:01,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:01,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:01,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:01,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:01,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:01,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:01,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:01,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:01,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:01,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:41:01,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:01,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:41:01,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:01,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:02,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:02,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:02,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:02,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:02,013 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-04-28 14:41:02,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:02,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:02,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:02,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:02,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:02,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:02,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:02,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:02,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:02,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:02,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:02,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:02,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:02,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:02,057 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:02,060 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:02,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:02,090 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:02,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:02,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:41:02,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054140275] [2021-04-28 14:41:02,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:41:02,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:02,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:41:02,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:41:02,094 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:41:02,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 704 transitions, 11926 flow. Second operand has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:02,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:02,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:41:02,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:03,391 INFO L129 PetriNetUnfolder]: 2203/4230 cut-off events. [2021-04-28 14:41:03,391 INFO L130 PetriNetUnfolder]: For 30527/30589 co-relation queries the response was YES. [2021-04-28 14:41:03,410 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35977 conditions, 4230 events. 2203/4230 cut-off events. For 30527/30589 co-relation queries the response was YES. Maximal size of possible extension queue 621. Compared 34162 event pairs, 0 based on Foata normal form. 30/1270 useless extension candidates. Maximal degree in co-relation 35917. Up to 2871 conditions per place. [2021-04-28 14:41:03,443 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 521 selfloop transitions, 195 changer transitions 3/738 dead transitions. [2021-04-28 14:41:03,443 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 738 transitions, 13815 flow [2021-04-28 14:41:03,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 14:41:03,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 14:41:03,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1168 transitions. [2021-04-28 14:41:03,446 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.586639879457559 [2021-04-28 14:41:03,446 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1168 transitions. [2021-04-28 14:41:03,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1168 transitions. [2021-04-28 14:41:03,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:03,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1168 transitions. [2021-04-28 14:41:03,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 106.18181818181819) internal successors, (1168), 11 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:03,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 181.0) internal successors, (2172), 12 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:03,453 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 181.0) internal successors, (2172), 12 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:03,453 INFO L185 Difference]: Start difference. First operand has 157 places, 704 transitions, 11926 flow. Second operand 11 states and 1168 transitions. [2021-04-28 14:41:03,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 738 transitions, 13815 flow [2021-04-28 14:41:04,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 738 transitions, 13490 flow, removed 23 selfloop flow, removed 8 redundant places. [2021-04-28 14:41:04,105 INFO L241 Difference]: Finished difference. Result has 160 places, 705 transitions, 12203 flow [2021-04-28 14:41:04,105 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=11609, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=704, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=509, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12203, PETRI_PLACES=160, PETRI_TRANSITIONS=705} [2021-04-28 14:41:04,106 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 85 predicate places. [2021-04-28 14:41:04,106 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:04,106 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 705 transitions, 12203 flow [2021-04-28 14:41:04,106 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 705 transitions, 12203 flow [2021-04-28 14:41:04,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 160 places, 705 transitions, 12203 flow [2021-04-28 14:41:04,572 INFO L129 PetriNetUnfolder]: 2188/4105 cut-off events. [2021-04-28 14:41:04,573 INFO L130 PetriNetUnfolder]: For 24099/24151 co-relation queries the response was YES. [2021-04-28 14:41:04,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32604 conditions, 4105 events. 2188/4105 cut-off events. For 24099/24151 co-relation queries the response was YES. Maximal size of possible extension queue 608. Compared 32753 event pairs, 0 based on Foata normal form. 0/1204 useless extension candidates. Maximal degree in co-relation 32546. Up to 2066 conditions per place. [2021-04-28 14:41:04,624 INFO L146 LiptonReduction]: Number of co-enabled transitions 7298 [2021-04-28 14:41:05,187 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:05,187 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:05,187 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1081 [2021-04-28 14:41:05,188 INFO L480 AbstractCegarLoop]: Abstraction has has 160 places, 705 transitions, 12203 flow [2021-04-28 14:41:05,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:05,189 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:05,189 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:05,403 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:05,404 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:05,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:05,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1095114221, now seen corresponding path program 6 times [2021-04-28 14:41:05,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:05,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211833569] [2021-04-28 14:41:05,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:05,435 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:05,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,445 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:41:05,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:05,458 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:41:05,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:05,472 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:41:05,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:05,492 INFO L142 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size [2021-04-28 14:41:05,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:05,526 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:41:05,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,545 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:05,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211833569] [2021-04-28 14:41:05,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002379079] [2021-04-28 14:41:05,546 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 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 [2021-04-28 14:41:05,656 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-04-28 14:41:05,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:41:05,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:41:05,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:05,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:05,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:05,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:05,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:05,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:05,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:05,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:05,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:05,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:05,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:05,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:05,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:05,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:05,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:05,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:05,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:05,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:05,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:05,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:05,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:41:05,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:05,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:05,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:41:05,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:05,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:05,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:05,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:05,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:41:05,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:05,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:05,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:41:05,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:05,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:05,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:05,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:05,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:05,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:05,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:41:05,885 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-04-28 14:41:05,887 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:05,887 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:05,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:05,917 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:05,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:05,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:41:05,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807408636] [2021-04-28 14:41:05,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:41:05,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:05,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:41:05,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:41:05,921 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:41:05,922 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 705 transitions, 12203 flow. Second operand has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:05,922 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:05,922 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:41:05,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:07,556 INFO L129 PetriNetUnfolder]: 2316/4417 cut-off events. [2021-04-28 14:41:07,556 INFO L130 PetriNetUnfolder]: For 37576/37638 co-relation queries the response was YES. [2021-04-28 14:41:07,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37727 conditions, 4417 events. 2316/4417 cut-off events. For 37576/37638 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 35571 event pairs, 0 based on Foata normal form. 54/1343 useless extension candidates. Maximal degree in co-relation 37667. Up to 2939 conditions per place. [2021-04-28 14:41:07,609 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 526 selfloop transitions, 242 changer transitions 15/802 dead transitions. [2021-04-28 14:41:07,609 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 802 transitions, 15506 flow [2021-04-28 14:41:07,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-04-28 14:41:07,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-04-28 14:41:07,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1705 transitions. [2021-04-28 14:41:07,613 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5887430939226519 [2021-04-28 14:41:07,613 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1705 transitions. [2021-04-28 14:41:07,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1705 transitions. [2021-04-28 14:41:07,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:07,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1705 transitions. [2021-04-28 14:41:07,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 106.5625) internal successors, (1705), 16 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:07,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 181.0) internal successors, (3077), 17 states have internal predecessors, (3077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:07,621 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 181.0) internal successors, (3077), 17 states have internal predecessors, (3077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:07,622 INFO L185 Difference]: Start difference. First operand has 160 places, 705 transitions, 12203 flow. Second operand 16 states and 1705 transitions. [2021-04-28 14:41:07,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 802 transitions, 15506 flow [2021-04-28 14:41:08,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 802 transitions, 15190 flow, removed 29 selfloop flow, removed 9 redundant places. [2021-04-28 14:41:08,255 INFO L241 Difference]: Finished difference. Result has 170 places, 762 transitions, 13679 flow [2021-04-28 14:41:08,256 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=11951, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=705, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=13679, PETRI_PLACES=170, PETRI_TRANSITIONS=762} [2021-04-28 14:41:08,256 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 95 predicate places. [2021-04-28 14:41:08,257 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:08,257 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 170 places, 762 transitions, 13679 flow [2021-04-28 14:41:08,257 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 170 places, 762 transitions, 13679 flow [2021-04-28 14:41:08,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 170 places, 762 transitions, 13679 flow [2021-04-28 14:41:08,793 INFO L129 PetriNetUnfolder]: 2301/4318 cut-off events. [2021-04-28 14:41:08,793 INFO L130 PetriNetUnfolder]: For 27897/27949 co-relation queries the response was YES. [2021-04-28 14:41:08,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35086 conditions, 4318 events. 2301/4318 cut-off events. For 27897/27949 co-relation queries the response was YES. Maximal size of possible extension queue 666. Compared 34663 event pairs, 0 based on Foata normal form. 0/1261 useless extension candidates. Maximal degree in co-relation 35024. Up to 2235 conditions per place. [2021-04-28 14:41:08,855 INFO L146 LiptonReduction]: Number of co-enabled transitions 7824 [2021-04-28 14:41:08,990 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:08,991 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:08,991 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 734 [2021-04-28 14:41:08,991 INFO L480 AbstractCegarLoop]: Abstraction has has 170 places, 762 transitions, 13679 flow [2021-04-28 14:41:08,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:08,992 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:08,992 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:09,205 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-04-28 14:41:09,206 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:09,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:09,206 INFO L82 PathProgramCache]: Analyzing trace with hash -696458648, now seen corresponding path program 1 times [2021-04-28 14:41:09,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:09,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301289044] [2021-04-28 14:41:09,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:09,246 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:09,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,259 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:41:09,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:09,273 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:41:09,274 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:41:09,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:09,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:09,352 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:41:09,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:09,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301289044] [2021-04-28 14:41:09,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574037092] [2021-04-28 14:41:09,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-04-28 14:41:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:09,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:41:09,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:09,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:09,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:09,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:09,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:09,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:09,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:09,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:09,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:09,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:09,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:09,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:09,590 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:41:09,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:41:09,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:41:09,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:09,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:09,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:09,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:09,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:09,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:09,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:09,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:09,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:09,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:09,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:09,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:09,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:09,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:09,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:09,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:09,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:09,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:09,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:09,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:09,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:09,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:09,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:09,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:09,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:09,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:09,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:09,732 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:09,734 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:09,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:09,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:09,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:09,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:41:09,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12396161] [2021-04-28 14:41:09,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:41:09,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:09,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:41:09,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:41:09,770 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:41:09,771 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 762 transitions, 13679 flow. Second operand has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:09,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:09,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:41:09,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:11,476 INFO L129 PetriNetUnfolder]: 2361/4536 cut-off events. [2021-04-28 14:41:11,476 INFO L130 PetriNetUnfolder]: For 32203/32265 co-relation queries the response was YES. [2021-04-28 14:41:11,495 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39565 conditions, 4536 events. 2361/4536 cut-off events. For 32203/32265 co-relation queries the response was YES. Maximal size of possible extension queue 659. Compared 37005 event pairs, 0 based on Foata normal form. 26/1347 useless extension candidates. Maximal degree in co-relation 39501. Up to 3181 conditions per place. [2021-04-28 14:41:11,519 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 652 selfloop transitions, 181 changer transitions 12/864 dead transitions. [2021-04-28 14:41:11,519 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 864 transitions, 16611 flow [2021-04-28 14:41:11,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-28 14:41:11,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-04-28 14:41:11,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1267 transitions. [2021-04-28 14:41:11,523 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2021-04-28 14:41:11,523 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1267 transitions. [2021-04-28 14:41:11,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1267 transitions. [2021-04-28 14:41:11,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:11,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1267 transitions. [2021-04-28 14:41:11,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 105.58333333333333) internal successors, (1267), 12 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:11,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 181.0) internal successors, (2353), 13 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:11,529 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 181.0) internal successors, (2353), 13 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:11,529 INFO L185 Difference]: Start difference. First operand has 170 places, 762 transitions, 13679 flow. Second operand 12 states and 1267 transitions. [2021-04-28 14:41:11,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 864 transitions, 16611 flow [2021-04-28 14:41:12,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 864 transitions, 15770 flow, removed 366 selfloop flow, removed 7 redundant places. [2021-04-28 14:41:12,127 INFO L241 Difference]: Finished difference. Result has 177 places, 772 transitions, 13388 flow [2021-04-28 14:41:12,128 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=12838, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=762, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13388, PETRI_PLACES=177, PETRI_TRANSITIONS=772} [2021-04-28 14:41:12,128 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 102 predicate places. [2021-04-28 14:41:12,128 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:12,128 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 177 places, 772 transitions, 13388 flow [2021-04-28 14:41:12,128 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 177 places, 772 transitions, 13388 flow [2021-04-28 14:41:12,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 177 places, 772 transitions, 13388 flow [2021-04-28 14:41:12,671 INFO L129 PetriNetUnfolder]: 2301/4425 cut-off events. [2021-04-28 14:41:12,671 INFO L130 PetriNetUnfolder]: For 30946/30990 co-relation queries the response was YES. [2021-04-28 14:41:12,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35019 conditions, 4425 events. 2301/4425 cut-off events. For 30946/30990 co-relation queries the response was YES. Maximal size of possible extension queue 676. Compared 36879 event pairs, 0 based on Foata normal form. 0/1308 useless extension candidates. Maximal degree in co-relation 34953. Up to 2075 conditions per place. [2021-04-28 14:41:12,732 INFO L146 LiptonReduction]: Number of co-enabled transitions 7904 [2021-04-28 14:41:12,889 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:12,890 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:12,890 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 762 [2021-04-28 14:41:12,891 INFO L480 AbstractCegarLoop]: Abstraction has has 177 places, 772 transitions, 13388 flow [2021-04-28 14:41:12,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:12,891 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:12,891 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:13,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:13,092 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:13,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:13,093 INFO L82 PathProgramCache]: Analyzing trace with hash -731310088, now seen corresponding path program 1 times [2021-04-28 14:41:13,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:13,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307400967] [2021-04-28 14:41:13,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:13,136 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:13,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,155 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:41:13,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:13,168 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:41:13,174 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:41:13,203 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:41:13,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:13,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:13,239 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:41:13,240 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:41:13,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:13,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307400967] [2021-04-28 14:41:13,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330769825] [2021-04-28 14:41:13,267 INFO L95 rtionOrderModulation]: Keeping assertion order 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 [2021-04-28 14:41:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:13,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:41:13,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:13,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:13,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:13,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:13,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:13,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:13,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:13,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:13,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:13,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:13,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:13,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:13,447 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:41:13,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:41:13,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:41:13,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:13,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:13,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:13,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:13,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:13,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:13,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:13,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:13,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:13,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:13,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:13,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:13,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:13,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:13,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:13,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:13,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:13,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:13,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,544 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-04-28 14:41:13,545 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-04-28 14:41:13,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:41:13,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:13,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:13,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 14:41:13,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:13,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:41:13,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 14:41:13,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:13,607 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:13,610 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:13,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:13,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:13,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:13,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:41:13,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065541659] [2021-04-28 14:41:13,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:41:13,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:13,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:41:13,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:41:13,642 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:41:13,644 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 772 transitions, 13388 flow. Second operand has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:13,644 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:13,644 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:41:13,644 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:15,293 INFO L129 PetriNetUnfolder]: 2341/4554 cut-off events. [2021-04-28 14:41:15,293 INFO L130 PetriNetUnfolder]: For 37292/37374 co-relation queries the response was YES. [2021-04-28 14:41:15,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39339 conditions, 4554 events. 2341/4554 cut-off events. For 37292/37374 co-relation queries the response was YES. Maximal size of possible extension queue 657. Compared 37658 event pairs, 0 based on Foata normal form. 26/1366 useless extension candidates. Maximal degree in co-relation 39271. Up to 3257 conditions per place. [2021-04-28 14:41:15,346 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 667 selfloop transitions, 151 changer transitions 3/840 dead transitions. [2021-04-28 14:41:15,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 840 transitions, 15992 flow [2021-04-28 14:41:15,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-28 14:41:15,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-04-28 14:41:15,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1264 transitions. [2021-04-28 14:41:15,349 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.58195211786372 [2021-04-28 14:41:15,349 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1264 transitions. [2021-04-28 14:41:15,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1264 transitions. [2021-04-28 14:41:15,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:15,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1264 transitions. [2021-04-28 14:41:15,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 105.33333333333333) internal successors, (1264), 12 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:15,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 181.0) internal successors, (2353), 13 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:15,355 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 181.0) internal successors, (2353), 13 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:15,355 INFO L185 Difference]: Start difference. First operand has 177 places, 772 transitions, 13388 flow. Second operand 12 states and 1264 transitions. [2021-04-28 14:41:15,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 840 transitions, 15992 flow [2021-04-28 14:41:16,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 840 transitions, 15770 flow, removed 18 selfloop flow, removed 7 redundant places. [2021-04-28 14:41:16,025 INFO L241 Difference]: Finished difference. Result has 183 places, 787 transitions, 13934 flow [2021-04-28 14:41:16,025 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=13175, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=772, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=626, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13934, PETRI_PLACES=183, PETRI_TRANSITIONS=787} [2021-04-28 14:41:16,026 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 108 predicate places. [2021-04-28 14:41:16,026 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:16,026 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 183 places, 787 transitions, 13934 flow [2021-04-28 14:41:16,026 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 183 places, 787 transitions, 13934 flow [2021-04-28 14:41:16,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 183 places, 787 transitions, 13934 flow [2021-04-28 14:41:16,585 INFO L129 PetriNetUnfolder]: 2326/4540 cut-off events. [2021-04-28 14:41:16,585 INFO L130 PetriNetUnfolder]: For 33828/33868 co-relation queries the response was YES. [2021-04-28 14:41:16,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36040 conditions, 4540 events. 2326/4540 cut-off events. For 33828/33868 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 38559 event pairs, 0 based on Foata normal form. 0/1341 useless extension candidates. Maximal degree in co-relation 35972. Up to 2110 conditions per place. [2021-04-28 14:41:16,649 INFO L146 LiptonReduction]: Number of co-enabled transitions 8054 [2021-04-28 14:41:16,846 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:16,846 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:16,846 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 820 [2021-04-28 14:41:16,847 INFO L480 AbstractCegarLoop]: Abstraction has has 183 places, 787 transitions, 13934 flow [2021-04-28 14:41:16,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:16,847 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:16,847 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:17,052 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-04-28 14:41:17,053 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:17,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:17,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1457867136, now seen corresponding path program 2 times [2021-04-28 14:41:17,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:17,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111281999] [2021-04-28 14:41:17,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:17,085 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:17,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:17,098 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:41:17,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:17,111 INFO L142 QuantifierPusher]: treesize reduction 13, result has 45.8 percent of original size [2021-04-28 14:41:17,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:17,132 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-04-28 14:41:17,134 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-04-28 14:41:17,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:17,194 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:41:17,196 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:41:17,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:17,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111281999] [2021-04-28 14:41:17,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603638208] [2021-04-28 14:41:17,230 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 [2021-04-28 14:41:17,358 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:41:17,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:41:17,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:41:17,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:17,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:17,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:17,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:17,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:17,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:17,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:17,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:17,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:17,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:17,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:17,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:17,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:17,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:17,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:17,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:17,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:17,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:17,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:17,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:17,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:17,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:17,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:17,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:17,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:17,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:17,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:17,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:17,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:17,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:17,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:17,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:17,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:17,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:17,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:17,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:17,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:17,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:17,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:17,485 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-04-28 14:41:17,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:41:17,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:41:17,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:17,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:17,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:17,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:17,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:17,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:17,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:17,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:17,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:17,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:17,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,554 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-04-28 14:41:17,555 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-04-28 14:41:17,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:41:17,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:17,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:17,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 14:41:17,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:17,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:41:17,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 14:41:17,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:17,600 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:17,601 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:17,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:17,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:17,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:17,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:41:17,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255163569] [2021-04-28 14:41:17,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:41:17,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:17,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:41:17,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:41:17,632 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:41:17,633 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 787 transitions, 13934 flow. Second operand has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:17,634 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:17,634 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:41:17,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:19,222 INFO L129 PetriNetUnfolder]: 2346/4588 cut-off events. [2021-04-28 14:41:19,222 INFO L130 PetriNetUnfolder]: For 42784/42866 co-relation queries the response was YES. [2021-04-28 14:41:19,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40014 conditions, 4588 events. 2346/4588 cut-off events. For 42784/42866 co-relation queries the response was YES. Maximal size of possible extension queue 670. Compared 38466 event pairs, 0 based on Foata normal form. 26/1378 useless extension candidates. Maximal degree in co-relation 39944. Up to 3187 conditions per place. [2021-04-28 14:41:19,283 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 617 selfloop transitions, 199 changer transitions 6/841 dead transitions. [2021-04-28 14:41:19,283 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 841 transitions, 16260 flow [2021-04-28 14:41:19,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-28 14:41:19,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-04-28 14:41:19,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1375 transitions. [2021-04-28 14:41:19,286 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5843603909902253 [2021-04-28 14:41:19,286 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1375 transitions. [2021-04-28 14:41:19,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1375 transitions. [2021-04-28 14:41:19,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:19,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1375 transitions. [2021-04-28 14:41:19,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 105.76923076923077) internal successors, (1375), 13 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:19,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 181.0) internal successors, (2534), 14 states have internal predecessors, (2534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:19,292 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 181.0) internal successors, (2534), 14 states have internal predecessors, (2534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:19,292 INFO L185 Difference]: Start difference. First operand has 183 places, 787 transitions, 13934 flow. Second operand 13 states and 1375 transitions. [2021-04-28 14:41:19,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 841 transitions, 16260 flow [2021-04-28 14:41:19,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 841 transitions, 16061 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-04-28 14:41:19,850 INFO L241 Difference]: Finished difference. Result has 188 places, 785 transitions, 14264 flow [2021-04-28 14:41:19,851 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=13735, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=787, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=14264, PETRI_PLACES=188, PETRI_TRANSITIONS=785} [2021-04-28 14:41:19,852 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 113 predicate places. [2021-04-28 14:41:19,852 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:19,852 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 188 places, 785 transitions, 14264 flow [2021-04-28 14:41:19,852 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 188 places, 785 transitions, 14264 flow [2021-04-28 14:41:19,864 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 188 places, 785 transitions, 14264 flow [2021-04-28 14:41:20,595 INFO L129 PetriNetUnfolder]: 2316/4515 cut-off events. [2021-04-28 14:41:20,595 INFO L130 PetriNetUnfolder]: For 38248/38368 co-relation queries the response was YES. [2021-04-28 14:41:20,620 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36825 conditions, 4515 events. 2316/4515 cut-off events. For 38248/38368 co-relation queries the response was YES. Maximal size of possible extension queue 743. Compared 38184 event pairs, 0 based on Foata normal form. 0/1334 useless extension candidates. Maximal degree in co-relation 36756. Up to 2105 conditions per place. [2021-04-28 14:41:20,664 INFO L146 LiptonReduction]: Number of co-enabled transitions 8038 [2021-04-28 14:41:20,903 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:20,903 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:20,903 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1051 [2021-04-28 14:41:20,904 INFO L480 AbstractCegarLoop]: Abstraction has has 188 places, 785 transitions, 14264 flow [2021-04-28 14:41:20,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:20,905 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:20,905 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:21,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-04-28 14:41:21,106 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:21,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:21,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1101887992, now seen corresponding path program 1 times [2021-04-28 14:41:21,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:21,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190572006] [2021-04-28 14:41:21,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:21,154 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:21,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:21,164 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:41:21,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:21,176 INFO L142 QuantifierPusher]: treesize reduction 13, result has 45.8 percent of original size [2021-04-28 14:41:21,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,191 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-04-28 14:41:21,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:21,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:21,223 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:41:21,224 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:41:21,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:21,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190572006] [2021-04-28 14:41:21,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586472707] [2021-04-28 14:41:21,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-04-28 14:41:21,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:21,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:41:21,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:21,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:21,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:21,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:21,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:21,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:21,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:21,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:21,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:21,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:21,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:21,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:21,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:21,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:21,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:21,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:21,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:21,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:21,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:21,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:21,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:21,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:21,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:21,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:21,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:21,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:21,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:21,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:21,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:21,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:21,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:21,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,538 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-04-28 14:41:21,540 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-04-28 14:41:21,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:21,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-28 14:41:21,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-28 14:41:21,576 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-04-28 14:41:21,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-04-28 14:41:21,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-04-28 14:41:21,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:21,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:21,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 14:41:21,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:21,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:41:21,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 14:41:21,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:21,654 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:21,655 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:21,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:21,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:21,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:21,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:41:21,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067159743] [2021-04-28 14:41:21,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:41:21,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:21,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:41:21,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:41:21,684 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 181 [2021-04-28 14:41:21,685 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 785 transitions, 14264 flow. Second operand has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:21,685 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:21,685 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 181 [2021-04-28 14:41:21,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:23,586 INFO L129 PetriNetUnfolder]: 2461/4831 cut-off events. [2021-04-28 14:41:23,586 INFO L130 PetriNetUnfolder]: For 49176/49258 co-relation queries the response was YES. [2021-04-28 14:41:23,613 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42712 conditions, 4831 events. 2461/4831 cut-off events. For 49176/49258 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 40906 event pairs, 0 based on Foata normal form. 26/1461 useless extension candidates. Maximal degree in co-relation 42641. Up to 3033 conditions per place. [2021-04-28 14:41:23,640 INFO L132 encePairwiseOnDemand]: 170/181 looper letters, 539 selfloop transitions, 307 changer transitions 6/871 dead transitions. [2021-04-28 14:41:23,640 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 871 transitions, 17192 flow [2021-04-28 14:41:23,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-28 14:41:23,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-04-28 14:41:23,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1487 transitions. [2021-04-28 14:41:23,643 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5868192580899764 [2021-04-28 14:41:23,643 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1487 transitions. [2021-04-28 14:41:23,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1487 transitions. [2021-04-28 14:41:23,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:23,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1487 transitions. [2021-04-28 14:41:23,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 106.21428571428571) internal successors, (1487), 14 states have internal predecessors, (1487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:23,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 181.0) internal successors, (2715), 15 states have internal predecessors, (2715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:23,649 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 181.0) internal successors, (2715), 15 states have internal predecessors, (2715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:23,649 INFO L185 Difference]: Start difference. First operand has 188 places, 785 transitions, 14264 flow. Second operand 14 states and 1487 transitions. [2021-04-28 14:41:23,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 871 transitions, 17192 flow [2021-04-28 14:41:24,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 871 transitions, 16982 flow, removed 7 selfloop flow, removed 8 redundant places. [2021-04-28 14:41:24,629 INFO L241 Difference]: Finished difference. Result has 196 places, 815 transitions, 15585 flow [2021-04-28 14:41:24,631 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=14054, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=785, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=274, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=478, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=15585, PETRI_PLACES=196, PETRI_TRANSITIONS=815} [2021-04-28 14:41:24,631 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 121 predicate places. [2021-04-28 14:41:24,631 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:24,631 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 815 transitions, 15585 flow [2021-04-28 14:41:24,632 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 196 places, 815 transitions, 15585 flow [2021-04-28 14:41:24,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 196 places, 815 transitions, 15585 flow [2021-04-28 14:41:25,322 INFO L129 PetriNetUnfolder]: 2431/4778 cut-off events. [2021-04-28 14:41:25,322 INFO L130 PetriNetUnfolder]: For 40658/40698 co-relation queries the response was YES. [2021-04-28 14:41:25,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40451 conditions, 4778 events. 2431/4778 cut-off events. For 40658/40698 co-relation queries the response was YES. Maximal size of possible extension queue 734. Compared 41475 event pairs, 0 based on Foata normal form. 0/1430 useless extension candidates. Maximal degree in co-relation 40379. Up to 2220 conditions per place. [2021-04-28 14:41:25,389 INFO L146 LiptonReduction]: Number of co-enabled transitions 8304 [2021-04-28 14:41:25,600 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:25,600 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:25,601 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 970 [2021-04-28 14:41:25,601 INFO L480 AbstractCegarLoop]: Abstraction has has 196 places, 815 transitions, 15585 flow [2021-04-28 14:41:25,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:25,601 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:25,602 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:25,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-04-28 14:41:25,802 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:25,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:25,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1843677432, now seen corresponding path program 2 times [2021-04-28 14:41:25,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:25,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789159221] [2021-04-28 14:41:25,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:25,828 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:25,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,838 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:41:25,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:25,851 INFO L142 QuantifierPusher]: treesize reduction 13, result has 45.8 percent of original size [2021-04-28 14:41:25,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:25,866 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-04-28 14:41:25,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:25,884 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-04-28 14:41:25,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,904 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:41:25,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:25,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789159221] [2021-04-28 14:41:25,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165732863] [2021-04-28 14:41:25,922 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 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 [2021-04-28 14:41:26,031 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:41:26,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:41:26,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:41:26,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:26,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:26,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:26,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:26,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:26,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:26,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:26,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:26,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:26,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:26,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:26,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:26,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:26,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:26,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:26,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:26,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:26,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:26,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:26,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:26,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:26,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:26,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:26,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:26,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:26,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:26,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:26,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:26,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:26,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:26,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:26,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:26,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:26,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:26,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:26,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:26,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:26,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:26,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:26,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:26,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:26,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:26,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:26,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:26,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:26,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:26,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:26,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,164 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-04-28 14:41:26,165 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-04-28 14:41:26,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:26,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:26,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:26,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-04-28 14:41:26,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:26,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:26,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-04-28 14:41:26,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:26,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:26,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 14:41:26,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:26,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-04-28 14:41:26,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 14:41:26,239 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-04-28 14:41:26,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:26,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,246 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-04-28 14:41:26,247 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:26,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,252 INFO L147 QuantifierPusher]: treesize reduction -4, result has 107.4 percent of original size 58 [2021-04-28 14:41:26,253 INFO L147 QuantifierPusher]: treesize reduction -4, result has 107.4 percent of original size 58 [2021-04-28 14:41:26,254 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-04-28 14:41:26,255 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:26,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:26,257 INFO L142 QuantifierPusher]: treesize reduction -4, result has 105.9 percent of original size [2021-04-28 14:41:26,336 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown