/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-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 14:39:43,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 14:39:43,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 14:39:43,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 14:39:43,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 14:39:43,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 14:39:43,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 14:39:43,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 14:39:43,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 14:39:43,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 14:39:43,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 14:39:43,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 14:39:43,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 14:39:43,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 14:39:43,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 14:39:43,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 14:39:43,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 14:39:43,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 14:39:43,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 14:39:43,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 14:39:43,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 14:39:43,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 14:39:43,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 14:39:43,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 14:39:43,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-28 14:39:43,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-28 14:39:43,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-28 14:39:43,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-28 14:39:43,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-28 14:39:43,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-28 14:39:43,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 14:39:43,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 14:39:43,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 14:39:43,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 14:39:43,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 14:39:43,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 14:39:43,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 14:39:43,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 14:39:43,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 14:39:43,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 14:39:43,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 14:39:43,372 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 14:39:43,399 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 14:39:43,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 14:39:43,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 14:39:43,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 14:39:43,401 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 14:39:43,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 14:39:43,402 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 14:39:43,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 14:39:43,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 14:39:43,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 14:39:43,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 14:39:43,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 14:39:43,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 14:39:43,403 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 14:39:43,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 14:39:43,404 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 14:39:43,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 14:39:43,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 14:39:43,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 14:39:43,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 14:39:43,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 14:39:43,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 14:39:43,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 14:39:43,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 14:39:43,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 14:39:43,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 14:39:43,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 14:39:43,407 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 14:39:43,408 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 14:39:43,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 14:39:43,408 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 14:39:43,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 14:39:43,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 14:39:43,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 14:39:43,850 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 14:39:43,851 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 14:39:43,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_bench-1.i [2021-04-28 14:39:43,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48b8d5b42/a87fd7c947a745468c5e5ab4ee9dd528/FLAG3a5e18acc [2021-04-28 14:39:44,641 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 14:39:44,642 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench-1.i [2021-04-28 14:39:44,656 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48b8d5b42/a87fd7c947a745468c5e5ab4ee9dd528/FLAG3a5e18acc [2021-04-28 14:39:44,844 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48b8d5b42/a87fd7c947a745468c5e5ab4ee9dd528 [2021-04-28 14:39:44,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 14:39:44,917 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 14:39:44,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 14:39:44,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 14:39:44,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 14:39:44,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 02:39:44" (1/1) ... [2021-04-28 14:39:44,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a1d1244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:44, skipping insertion in model container [2021-04-28 14:39:44,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 02:39:44" (1/1) ... [2021-04-28 14:39:44,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 14:39:44,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 14:39:45,383 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-1.i[30920,30933] [2021-04-28 14:39:45,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 14:39:45,395 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 14:39:45,441 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-1.i[30920,30933] [2021-04-28 14:39:45,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 14:39:45,590 INFO L208 MainTranslator]: Completed translation [2021-04-28 14:39:45,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45 WrapperNode [2021-04-28 14:39:45,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 14:39:45,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 14:39:45,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 14:39:45,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 14:39:45,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 14:39:45,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 14:39:45,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 14:39:45,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 14:39:45,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 14:39:45,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 14:39:45,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 14:39:45,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 14:39:45,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (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 14:39:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-04-28 14:39:45,817 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-04-28 14:39:45,817 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-04-28 14:39:45,817 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-04-28 14:39:45,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 14:39:45,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 14:39:45,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 14:39:45,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 14:39:45,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 14:39:45,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 14:39:45,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 14:39:45,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 14:39:45,820 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 14:39:46,337 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 14:39:46,337 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-04-28 14:39:46,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 02:39:46 BoogieIcfgContainer [2021-04-28 14:39:46,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 14:39:46,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 14:39:46,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 14:39:46,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 14:39:46,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 02:39:44" (1/3) ... [2021-04-28 14:39:46,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e546c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 02:39:46, skipping insertion in model container [2021-04-28 14:39:46,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (2/3) ... [2021-04-28 14:39:46,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e546c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 02:39:46, skipping insertion in model container [2021-04-28 14:39:46,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 02:39:46" (3/3) ... [2021-04-28 14:39:46,376 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_bench-1.i [2021-04-28 14:39:46,383 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 14:39:46,388 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 14:39:46,389 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 14:39:46,434 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,434 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,434 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,434 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,435 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,435 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,435 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,435 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,436 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,436 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,437 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,437 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,437 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,437 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,438 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,438 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,439 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,439 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,440 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,440 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,440 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,441 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,441 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,441 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,441 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,441 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,443 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,443 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,443 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,444 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,444 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,444 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,445 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,445 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,446 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,446 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,446 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,447 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,447 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,447 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,448 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,448 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,448 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,448 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,448 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,449 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,450 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,450 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,450 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,451 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,451 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,451 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,451 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,452 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,452 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,453 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,453 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,455 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,455 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,457 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,458 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,458 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,458 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,459 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,465 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,465 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,466 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,466 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,466 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,467 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,469 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 14:39:46,498 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-28 14:39:46,537 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 14:39:46,538 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 14:39:46,538 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 14:39:46,539 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 14:39:46,539 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 14:39:46,539 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 14:39:46,539 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 14:39:46,539 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 14:39:46,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 134 flow [2021-04-28 14:39:46,596 INFO L129 PetriNetUnfolder]: 5/60 cut-off events. [2021-04-28 14:39:46,596 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 14:39:46,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 60 events. 5/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 14:39:46,601 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 62 transitions, 134 flow [2021-04-28 14:39:46,606 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 60 transitions, 126 flow [2021-04-28 14:39:46,607 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:39:46,622 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 60 transitions, 126 flow [2021-04-28 14:39:46,626 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 60 transitions, 126 flow [2021-04-28 14:39:46,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 60 transitions, 126 flow [2021-04-28 14:39:46,645 INFO L129 PetriNetUnfolder]: 5/60 cut-off events. [2021-04-28 14:39:46,646 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 14:39:46,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 60 events. 5/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 96 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 14:39:46,650 INFO L146 LiptonReduction]: Number of co-enabled transitions 1080 [2021-04-28 14:39:52,665 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 14:39:52,896 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 14:39:53,585 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-04-28 14:39:53,704 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 14:39:53,959 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-04-28 14:39:54,273 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-04-28 14:39:54,616 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-04-28 14:39:57,172 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 14:39:57,308 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 14:39:57,432 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 14:39:57,554 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 14:39:57,932 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 14:39:58,059 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 14:39:58,199 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 14:39:58,324 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 14:39:59,604 INFO L158 LiptonReduction]: Checked pairs total: 3991 [2021-04-28 14:39:59,604 INFO L160 LiptonReduction]: Total number of compositions: 121 [2021-04-28 14:39:59,608 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13002 [2021-04-28 14:39:59,633 INFO L129 PetriNetUnfolder]: 2/51 cut-off events. [2021-04-28 14:39:59,634 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 14:39:59,634 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:39:59,635 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-28 14:39:59,635 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:39:59,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:39:59,641 INFO L82 PathProgramCache]: Analyzing trace with hash 705684432, now seen corresponding path program 1 times [2021-04-28 14:39:59,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:39:59,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355076389] [2021-04-28 14:39:59,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:39:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:39:59,876 INFO L142 QuantifierPusher]: treesize reduction 12, result has 36.8 percent of original size [2021-04-28 14:39:59,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:39:59,889 INFO L142 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-04-28 14:39:59,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:39:59,903 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 14:39:59,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355076389] [2021-04-28 14:39:59,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:39:59,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 14:39:59,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231052619] [2021-04-28 14:39:59,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 14:39:59,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:39:59,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 14:39:59,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 14:39:59,937 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:39:59,944 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 69 transitions, 144 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 14:39:59,944 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:39:59,944 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:39:59,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:00,317 INFO L129 PetriNetUnfolder]: 1392/1995 cut-off events. [2021-04-28 14:40:00,318 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 14:40:00,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3828 conditions, 1995 events. 1392/1995 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 9895 event pairs, 224 based on Foata normal form. 0/446 useless extension candidates. Maximal degree in co-relation 3782. Up to 1666 conditions per place. [2021-04-28 14:40:00,335 INFO L132 encePairwiseOnDemand]: 159/183 looper letters, 14 selfloop transitions, 22 changer transitions 58/114 dead transitions. [2021-04-28 14:40:00,335 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 114 transitions, 396 flow [2021-04-28 14:40:00,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 14:40:00,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 14:40:00,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 577 transitions. [2021-04-28 14:40:00,365 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6306010928961748 [2021-04-28 14:40:00,366 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 577 transitions. [2021-04-28 14:40:00,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 577 transitions. [2021-04-28 14:40:00,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:00,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 577 transitions. [2021-04-28 14:40:00,381 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 14:40:00,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 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 14:40:00,393 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 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 14:40:00,396 INFO L185 Difference]: Start difference. First operand has 74 places, 69 transitions, 144 flow. Second operand 5 states and 577 transitions. [2021-04-28 14:40:00,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 114 transitions, 396 flow [2021-04-28 14:40:00,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 114 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 14:40:00,404 INFO L241 Difference]: Finished difference. Result has 78 places, 52 transitions, 209 flow [2021-04-28 14:40:00,407 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=209, PETRI_PLACES=78, PETRI_TRANSITIONS=52} [2021-04-28 14:40:00,407 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 4 predicate places. [2021-04-28 14:40:00,408 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:00,408 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 52 transitions, 209 flow [2021-04-28 14:40:00,409 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 52 transitions, 209 flow [2021-04-28 14:40:00,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 52 transitions, 209 flow [2021-04-28 14:40:00,442 INFO L129 PetriNetUnfolder]: 149/312 cut-off events. [2021-04-28 14:40:00,443 INFO L130 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2021-04-28 14:40:00,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 312 events. 149/312 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 1713 event pairs, 13 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 707. Up to 145 conditions per place. [2021-04-28 14:40:00,450 INFO L146 LiptonReduction]: Number of co-enabled transitions 826 [2021-04-28 14:40:00,459 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:00,459 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:00,459 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-04-28 14:40:00,463 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 52 transitions, 209 flow [2021-04-28 14:40:00,464 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 14:40:00,464 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:00,464 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:00,465 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 14:40:00,465 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:00,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:00,476 INFO L82 PathProgramCache]: Analyzing trace with hash -441323291, now seen corresponding path program 1 times [2021-04-28 14:40:00,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:00,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248574993] [2021-04-28 14:40:00,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:00,622 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:00,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:00,633 INFO L142 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size [2021-04-28 14:40:00,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:00,646 INFO L142 QuantifierPusher]: treesize reduction 10, result has 41.2 percent of original size [2021-04-28 14:40:00,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:00,652 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 14:40:00,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248574993] [2021-04-28 14:40:00,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:00,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 14:40:00,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129770499] [2021-04-28 14:40:00,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 14:40:00,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:00,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 14:40:00,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 14:40:00,660 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:00,661 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 52 transitions, 209 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 14:40:00,662 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:00,662 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:00,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:00,782 INFO L129 PetriNetUnfolder]: 292/476 cut-off events. [2021-04-28 14:40:00,783 INFO L130 PetriNetUnfolder]: For 163/193 co-relation queries the response was YES. [2021-04-28 14:40:00,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1459 conditions, 476 events. 292/476 cut-off events. For 163/193 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 2007 event pairs, 0 based on Foata normal form. 14/171 useless extension candidates. Maximal degree in co-relation 1447. Up to 357 conditions per place. [2021-04-28 14:40:00,788 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 14 selfloop transitions, 47 changer transitions 0/81 dead transitions. [2021-04-28 14:40:00,789 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 81 transitions, 475 flow [2021-04-28 14:40:00,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 14:40:00,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 14:40:00,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 748 transitions. [2021-04-28 14:40:00,792 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5839188134270101 [2021-04-28 14:40:00,792 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 748 transitions. [2021-04-28 14:40:00,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 748 transitions. [2021-04-28 14:40:00,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:00,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 748 transitions. [2021-04-28 14:40:00,796 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 14:40:00,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 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 14:40:00,800 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 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 14:40:00,800 INFO L185 Difference]: Start difference. First operand has 41 places, 52 transitions, 209 flow. Second operand 7 states and 748 transitions. [2021-04-28 14:40:00,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 81 transitions, 475 flow [2021-04-28 14:40:00,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 81 transitions, 475 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 14:40:00,806 INFO L241 Difference]: Finished difference. Result has 50 places, 77 transitions, 495 flow [2021-04-28 14:40:00,806 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=495, PETRI_PLACES=50, PETRI_TRANSITIONS=77} [2021-04-28 14:40:00,807 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, -24 predicate places. [2021-04-28 14:40:00,807 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:00,807 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 77 transitions, 495 flow [2021-04-28 14:40:00,808 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 77 transitions, 495 flow [2021-04-28 14:40:00,809 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 77 transitions, 495 flow [2021-04-28 14:40:00,845 INFO L129 PetriNetUnfolder]: 220/399 cut-off events. [2021-04-28 14:40:00,846 INFO L130 PetriNetUnfolder]: For 256/277 co-relation queries the response was YES. [2021-04-28 14:40:00,848 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1477 conditions, 399 events. 220/399 cut-off events. For 256/277 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 1988 event pairs, 9 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 1462. Up to 181 conditions per place. [2021-04-28 14:40:00,855 INFO L146 LiptonReduction]: Number of co-enabled transitions 1178 [2021-04-28 14:40:00,872 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:00,872 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:00,873 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-04-28 14:40:00,874 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 77 transitions, 495 flow [2021-04-28 14:40:00,875 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 14:40:00,875 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:00,875 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:00,875 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 14:40:00,876 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:00,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:00,876 INFO L82 PathProgramCache]: Analyzing trace with hash -442091440, now seen corresponding path program 1 times [2021-04-28 14:40:00,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:00,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467933379] [2021-04-28 14:40:00,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:00,939 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:00,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:00,951 INFO L142 QuantifierPusher]: treesize reduction 16, result has 38.5 percent of original size [2021-04-28 14:40:00,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:00,962 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:00,964 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:00,975 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 14:40:00,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467933379] [2021-04-28 14:40:00,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:00,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 14:40:00,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123738341] [2021-04-28 14:40:00,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 14:40:00,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:00,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 14:40:00,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 14:40:00,984 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:00,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 77 transitions, 495 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 14:40:00,986 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:00,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:00,986 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:01,187 INFO L129 PetriNetUnfolder]: 324/544 cut-off events. [2021-04-28 14:40:01,188 INFO L130 PetriNetUnfolder]: For 485/527 co-relation queries the response was YES. [2021-04-28 14:40:01,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2373 conditions, 544 events. 324/544 cut-off events. For 485/527 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 2494 event pairs, 0 based on Foata normal form. 26/200 useless extension candidates. Maximal degree in co-relation 2356. Up to 389 conditions per place. [2021-04-28 14:40:01,198 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 39 selfloop transitions, 27 changer transitions 3/89 dead transitions. [2021-04-28 14:40:01,198 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 89 transitions, 737 flow [2021-04-28 14:40:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 14:40:01,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 14:40:01,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 532 transitions. [2021-04-28 14:40:01,202 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5814207650273224 [2021-04-28 14:40:01,202 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 532 transitions. [2021-04-28 14:40:01,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 532 transitions. [2021-04-28 14:40:01,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:01,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 532 transitions. [2021-04-28 14:40:01,206 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 14:40:01,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 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 14:40:01,210 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 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 14:40:01,210 INFO L185 Difference]: Start difference. First operand has 50 places, 77 transitions, 495 flow. Second operand 5 states and 532 transitions. [2021-04-28 14:40:01,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 89 transitions, 737 flow [2021-04-28 14:40:01,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 89 transitions, 644 flow, removed 37 selfloop flow, removed 2 redundant places. [2021-04-28 14:40:01,225 INFO L241 Difference]: Finished difference. Result has 53 places, 78 transitions, 505 flow [2021-04-28 14:40:01,226 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=505, PETRI_PLACES=53, PETRI_TRANSITIONS=78} [2021-04-28 14:40:01,226 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, -21 predicate places. [2021-04-28 14:40:01,226 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:01,227 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 78 transitions, 505 flow [2021-04-28 14:40:01,228 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 78 transitions, 505 flow [2021-04-28 14:40:01,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 78 transitions, 505 flow [2021-04-28 14:40:01,280 INFO L129 PetriNetUnfolder]: 268/451 cut-off events. [2021-04-28 14:40:01,280 INFO L130 PetriNetUnfolder]: For 441/444 co-relation queries the response was YES. [2021-04-28 14:40:01,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1711 conditions, 451 events. 268/451 cut-off events. For 441/444 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 1994 event pairs, 0 based on Foata normal form. 1/148 useless extension candidates. Maximal degree in co-relation 1694. Up to 189 conditions per place. [2021-04-28 14:40:01,291 INFO L146 LiptonReduction]: Number of co-enabled transitions 1216 [2021-04-28 14:40:01,308 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:01,308 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:01,309 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 83 [2021-04-28 14:40:01,313 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 78 transitions, 505 flow [2021-04-28 14:40:01,313 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 14:40:01,314 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:01,314 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:01,316 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 14:40:01,316 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:01,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:01,316 INFO L82 PathProgramCache]: Analyzing trace with hash -441466480, now seen corresponding path program 2 times [2021-04-28 14:40:01,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:01,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693414460] [2021-04-28 14:40:01,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:01,410 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:01,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:01,418 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-04-28 14:40:01,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:01,436 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:01,438 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:01,448 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 14:40:01,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693414460] [2021-04-28 14:40:01,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:01,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 14:40:01,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127657872] [2021-04-28 14:40:01,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 14:40:01,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:01,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 14:40:01,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 14:40:01,453 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:01,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 78 transitions, 505 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 14:40:01,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:01,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:01,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:01,642 INFO L129 PetriNetUnfolder]: 364/607 cut-off events. [2021-04-28 14:40:01,642 INFO L130 PetriNetUnfolder]: For 729/759 co-relation queries the response was YES. [2021-04-28 14:40:01,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2707 conditions, 607 events. 364/607 cut-off events. For 729/759 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 2801 event pairs, 0 based on Foata normal form. 26/219 useless extension candidates. Maximal degree in co-relation 2688. Up to 425 conditions per place. [2021-04-28 14:40:01,652 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 39 selfloop transitions, 52 changer transitions 0/111 dead transitions. [2021-04-28 14:40:01,653 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 111 transitions, 937 flow [2021-04-28 14:40:01,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 14:40:01,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 14:40:01,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 745 transitions. [2021-04-28 14:40:01,657 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5815768930523029 [2021-04-28 14:40:01,657 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 745 transitions. [2021-04-28 14:40:01,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 745 transitions. [2021-04-28 14:40:01,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:01,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 745 transitions. [2021-04-28 14:40:01,661 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 14:40:01,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 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 14:40:01,666 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 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 14:40:01,666 INFO L185 Difference]: Start difference. First operand has 53 places, 78 transitions, 505 flow. Second operand 7 states and 745 transitions. [2021-04-28 14:40:01,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 111 transitions, 937 flow [2021-04-28 14:40:01,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 111 transitions, 882 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-04-28 14:40:01,681 INFO L241 Difference]: Finished difference. Result has 58 places, 103 transitions, 821 flow [2021-04-28 14:40:01,681 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=821, PETRI_PLACES=58, PETRI_TRANSITIONS=103} [2021-04-28 14:40:01,682 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, -16 predicate places. [2021-04-28 14:40:01,682 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:01,684 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 103 transitions, 821 flow [2021-04-28 14:40:01,686 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 103 transitions, 821 flow [2021-04-28 14:40:01,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 103 transitions, 821 flow [2021-04-28 14:40:01,755 INFO L129 PetriNetUnfolder]: 344/566 cut-off events. [2021-04-28 14:40:01,755 INFO L130 PetriNetUnfolder]: For 908/921 co-relation queries the response was YES. [2021-04-28 14:40:01,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2701 conditions, 566 events. 344/566 cut-off events. For 908/921 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 2552 event pairs, 0 based on Foata normal form. 1/182 useless extension candidates. Maximal degree in co-relation 2682. Up to 237 conditions per place. [2021-04-28 14:40:01,769 INFO L146 LiptonReduction]: Number of co-enabled transitions 1544 [2021-04-28 14:40:01,817 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:01,817 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:01,818 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 136 [2021-04-28 14:40:01,824 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 103 transitions, 821 flow [2021-04-28 14:40:01,827 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 14:40:01,827 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:01,827 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:01,827 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 14:40:01,827 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:01,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:01,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1134497849, now seen corresponding path program 1 times [2021-04-28 14:40:01,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:01,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977204516] [2021-04-28 14:40:01,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:01,914 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:01,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:01,931 INFO L142 QuantifierPusher]: treesize reduction 7, result has 56.3 percent of original size [2021-04-28 14:40:01,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:01,947 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-04-28 14:40:01,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:01,963 INFO L142 QuantifierPusher]: treesize reduction 10, result has 41.2 percent of original size [2021-04-28 14:40:01,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:01,972 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 14:40:01,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977204516] [2021-04-28 14:40:01,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930034819] [2021-04-28 14:40:01,974 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 14:40:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:02,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-28 14:40:02,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:02,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:02,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:02,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:02,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:02,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:02,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:02,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:02,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:02,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:02,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:02,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:02,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:02,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:02,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:02,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:02,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:02,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:02,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:02,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:02,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:02,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:02,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:02,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:02,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:02,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:02,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:02,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:02,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:02,234 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-04-28 14:40:02,239 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-28 14:40:02,244 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:02,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:02,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:02,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:02,292 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 14:40:02,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:02,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-04-28 14:40:02,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546324331] [2021-04-28 14:40:02,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-04-28 14:40:02,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:02,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-04-28 14:40:02,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-04-28 14:40:02,302 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:02,304 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 103 transitions, 821 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 14:40:02,304 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:02,304 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:02,304 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:02,664 INFO L129 PetriNetUnfolder]: 516/827 cut-off events. [2021-04-28 14:40:02,664 INFO L130 PetriNetUnfolder]: For 1323/1353 co-relation queries the response was YES. [2021-04-28 14:40:02,668 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4466 conditions, 827 events. 516/827 cut-off events. For 1323/1353 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 3796 event pairs, 0 based on Foata normal form. 18/272 useless extension candidates. Maximal degree in co-relation 4445. Up to 602 conditions per place. [2021-04-28 14:40:02,679 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 43 selfloop transitions, 98 changer transitions 0/161 dead transitions. [2021-04-28 14:40:02,680 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 161 transitions, 1711 flow [2021-04-28 14:40:02,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 14:40:02,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 14:40:02,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1176 transitions. [2021-04-28 14:40:02,685 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5842026825633383 [2021-04-28 14:40:02,685 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1176 transitions. [2021-04-28 14:40:02,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1176 transitions. [2021-04-28 14:40:02,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:02,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1176 transitions. [2021-04-28 14:40:02,690 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 14:40:02,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 0 states have call successors, (0), 0 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 14:40:02,694 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 0 states have call successors, (0), 0 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 14:40:02,694 INFO L185 Difference]: Start difference. First operand has 58 places, 103 transitions, 821 flow. Second operand 11 states and 1176 transitions. [2021-04-28 14:40:02,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 161 transitions, 1711 flow [2021-04-28 14:40:02,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 161 transitions, 1595 flow, removed 50 selfloop flow, removed 2 redundant places. [2021-04-28 14:40:02,714 INFO L241 Difference]: Finished difference. Result has 69 places, 161 transitions, 1599 flow [2021-04-28 14:40:02,714 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1599, PETRI_PLACES=69, PETRI_TRANSITIONS=161} [2021-04-28 14:40:02,715 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, -5 predicate places. [2021-04-28 14:40:02,715 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:02,715 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 161 transitions, 1599 flow [2021-04-28 14:40:02,715 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 161 transitions, 1599 flow [2021-04-28 14:40:02,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 161 transitions, 1599 flow [2021-04-28 14:40:02,827 INFO L129 PetriNetUnfolder]: 516/835 cut-off events. [2021-04-28 14:40:02,827 INFO L130 PetriNetUnfolder]: For 1830/1842 co-relation queries the response was YES. [2021-04-28 14:40:02,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4439 conditions, 835 events. 516/835 cut-off events. For 1830/1842 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 4065 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 4416. Up to 494 conditions per place. [2021-04-28 14:40:02,846 INFO L146 LiptonReduction]: Number of co-enabled transitions 2176 [2021-04-28 14:40:02,895 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:02,895 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:02,895 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 180 [2021-04-28 14:40:02,898 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 161 transitions, 1599 flow [2021-04-28 14:40:02,899 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 14:40:02,899 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:02,899 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:03,113 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:03,113 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:03,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:03,114 INFO L82 PathProgramCache]: Analyzing trace with hash -802057991, now seen corresponding path program 1 times [2021-04-28 14:40:03,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:03,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100497105] [2021-04-28 14:40:03,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:03,167 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:03,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,176 INFO L142 QuantifierPusher]: treesize reduction 16, result has 38.5 percent of original size [2021-04-28 14:40:03,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:03,187 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-04-28 14:40:03,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:03,201 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:03,204 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:03,217 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 14:40:03,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100497105] [2021-04-28 14:40:03,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296551819] [2021-04-28 14:40:03,218 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 14:40:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:03,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-28 14:40:03,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:03,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:03,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:03,349 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-04-28 14:40:03,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:03,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:03,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:03,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:03,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:03,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:03,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:03,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:03,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:03,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:03,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:03,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:03,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:03,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:03,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:03,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:03,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:03,437 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 14:40:03,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:03,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-04-28 14:40:03,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749002590] [2021-04-28 14:40:03,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-04-28 14:40:03,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:03,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-04-28 14:40:03,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-04-28 14:40:03,441 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:03,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 161 transitions, 1599 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 14:40:03,469 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:03,469 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:03,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:03,692 INFO L129 PetriNetUnfolder]: 548/896 cut-off events. [2021-04-28 14:40:03,693 INFO L130 PetriNetUnfolder]: For 2454/2496 co-relation queries the response was YES. [2021-04-28 14:40:03,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5532 conditions, 896 events. 548/896 cut-off events. For 2454/2496 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 4282 event pairs, 0 based on Foata normal form. 26/297 useless extension candidates. Maximal degree in co-relation 5507. Up to 661 conditions per place. [2021-04-28 14:40:03,714 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 122 selfloop transitions, 44 changer transitions 3/189 dead transitions. [2021-04-28 14:40:03,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 189 transitions, 2309 flow [2021-04-28 14:40:03,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 14:40:03,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 14:40:03,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 636 transitions. [2021-04-28 14:40:03,719 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5792349726775956 [2021-04-28 14:40:03,719 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 636 transitions. [2021-04-28 14:40:03,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 636 transitions. [2021-04-28 14:40:03,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:03,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 636 transitions. [2021-04-28 14:40:03,722 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 14:40:03,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 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 14:40:03,726 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 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 14:40:03,726 INFO L185 Difference]: Start difference. First operand has 69 places, 161 transitions, 1599 flow. Second operand 6 states and 636 transitions. [2021-04-28 14:40:03,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 189 transitions, 2309 flow [2021-04-28 14:40:03,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 189 transitions, 1756 flow, removed 240 selfloop flow, removed 6 redundant places. [2021-04-28 14:40:03,768 INFO L241 Difference]: Finished difference. Result has 70 places, 166 transitions, 1398 flow [2021-04-28 14:40:03,768 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=1210, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1398, PETRI_PLACES=70, PETRI_TRANSITIONS=166} [2021-04-28 14:40:03,768 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, -4 predicate places. [2021-04-28 14:40:03,769 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:03,769 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 166 transitions, 1398 flow [2021-04-28 14:40:03,769 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 166 transitions, 1398 flow [2021-04-28 14:40:03,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 166 transitions, 1398 flow [2021-04-28 14:40:03,848 INFO L129 PetriNetUnfolder]: 536/821 cut-off events. [2021-04-28 14:40:03,848 INFO L130 PetriNetUnfolder]: For 1900/1900 co-relation queries the response was YES. [2021-04-28 14:40:03,852 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4175 conditions, 821 events. 536/821 cut-off events. For 1900/1900 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 3549 event pairs, 0 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 4151. Up to 522 conditions per place. [2021-04-28 14:40:03,864 INFO L146 LiptonReduction]: Number of co-enabled transitions 2230 [2021-04-28 14:40:03,887 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:03,887 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:03,887 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 118 [2021-04-28 14:40:03,889 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 166 transitions, 1398 flow [2021-04-28 14:40:03,890 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 14:40:03,890 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:03,890 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:04,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:04,106 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:04,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:04,106 INFO L82 PathProgramCache]: Analyzing trace with hash -800558831, now seen corresponding path program 2 times [2021-04-28 14:40:04,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:04,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702147885] [2021-04-28 14:40:04,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:04,155 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:04,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,164 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:04,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:04,175 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-04-28 14:40:04,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:04,187 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:04,189 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:04,204 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 14:40:04,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702147885] [2021-04-28 14:40:04,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228767808] [2021-04-28 14:40:04,205 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 14:40:04,272 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:40:04,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:04,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-28 14:40:04,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:04,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:04,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:04,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:04,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:04,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:04,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:04,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:04,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:04,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:04,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:04,345 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-04-28 14:40:04,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:04,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:04,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:04,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:04,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:04,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:04,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:04,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:04,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,389 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:04,389 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:04,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:04,409 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 14:40:04,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:04,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-04-28 14:40:04,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246289191] [2021-04-28 14:40:04,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-04-28 14:40:04,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:04,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-04-28 14:40:04,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-04-28 14:40:04,414 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:04,415 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 166 transitions, 1398 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 14:40:04,416 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:04,416 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:04,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:04,697 INFO L129 PetriNetUnfolder]: 568/929 cut-off events. [2021-04-28 14:40:04,697 INFO L130 PetriNetUnfolder]: For 2570/2600 co-relation queries the response was YES. [2021-04-28 14:40:04,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5296 conditions, 929 events. 568/929 cut-off events. For 2570/2600 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 4477 event pairs, 0 based on Foata normal form. 26/306 useless extension candidates. Maximal degree in co-relation 5270. Up to 637 conditions per place. [2021-04-28 14:40:04,713 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 101 selfloop transitions, 66 changer transitions 3/190 dead transitions. [2021-04-28 14:40:04,713 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 190 transitions, 1930 flow [2021-04-28 14:40:04,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 14:40:04,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 14:40:04,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 744 transitions. [2021-04-28 14:40:04,717 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5807962529274004 [2021-04-28 14:40:04,717 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 744 transitions. [2021-04-28 14:40:04,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 744 transitions. [2021-04-28 14:40:04,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:04,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 744 transitions. [2021-04-28 14:40:04,721 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 14:40:04,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 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 14:40:04,726 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 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 14:40:04,726 INFO L185 Difference]: Start difference. First operand has 70 places, 166 transitions, 1398 flow. Second operand 7 states and 744 transitions. [2021-04-28 14:40:04,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 190 transitions, 1930 flow [2021-04-28 14:40:04,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 190 transitions, 1881 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 14:40:04,756 INFO L241 Difference]: Finished difference. Result has 74 places, 167 transitions, 1564 flow [2021-04-28 14:40:04,756 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=1349, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1564, PETRI_PLACES=74, PETRI_TRANSITIONS=167} [2021-04-28 14:40:04,757 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 0 predicate places. [2021-04-28 14:40:04,757 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:04,757 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 167 transitions, 1564 flow [2021-04-28 14:40:04,757 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 167 transitions, 1564 flow [2021-04-28 14:40:04,759 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 167 transitions, 1564 flow [2021-04-28 14:40:04,858 INFO L129 PetriNetUnfolder]: 556/897 cut-off events. [2021-04-28 14:40:04,858 INFO L130 PetriNetUnfolder]: For 2209/2209 co-relation queries the response was YES. [2021-04-28 14:40:04,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4738 conditions, 897 events. 556/897 cut-off events. For 2209/2209 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 4375 event pairs, 0 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 4713. Up to 550 conditions per place. [2021-04-28 14:40:04,876 INFO L146 LiptonReduction]: Number of co-enabled transitions 2244 [2021-04-28 14:40:04,915 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:04,915 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:04,916 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 159 [2021-04-28 14:40:04,916 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 167 transitions, 1564 flow [2021-04-28 14:40:04,918 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 14:40:04,918 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:04,918 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:05,131 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:05,131 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:05,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:05,132 INFO L82 PathProgramCache]: Analyzing trace with hash -800507681, now seen corresponding path program 1 times [2021-04-28 14:40:05,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:05,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273851323] [2021-04-28 14:40:05,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:05,182 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:05,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,189 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:05,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:05,197 INFO L142 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size [2021-04-28 14:40:05,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:05,213 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:05,214 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:05,228 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 14:40:05,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273851323] [2021-04-28 14:40:05,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108745494] [2021-04-28 14:40:05,228 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 14:40:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:05,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-28 14:40:05,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:05,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:05,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:05,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:05,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:05,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:05,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:05,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:05,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:05,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:05,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:05,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:05,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:05,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:05,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:05,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:05,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:05,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:05,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:05,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:05,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:40:05,380 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-04-28 14:40:05,381 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:05,382 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:05,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:05,394 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 14:40:05,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:05,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-04-28 14:40:05,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599260304] [2021-04-28 14:40:05,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-04-28 14:40:05,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:05,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-04-28 14:40:05,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-04-28 14:40:05,398 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:05,400 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 167 transitions, 1564 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 14:40:05,400 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:05,400 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:05,400 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:05,814 INFO L129 PetriNetUnfolder]: 660/1094 cut-off events. [2021-04-28 14:40:05,814 INFO L130 PetriNetUnfolder]: For 4120/4150 co-relation queries the response was YES. [2021-04-28 14:40:05,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6597 conditions, 1094 events. 660/1094 cut-off events. For 4120/4150 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 5555 event pairs, 0 based on Foata normal form. 46/373 useless extension candidates. Maximal degree in co-relation 6570. Up to 702 conditions per place. [2021-04-28 14:40:05,832 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 105 selfloop transitions, 107 changer transitions 9/241 dead transitions. [2021-04-28 14:40:05,832 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 241 transitions, 2858 flow [2021-04-28 14:40:05,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-28 14:40:05,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-04-28 14:40:05,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1281 transitions. [2021-04-28 14:40:05,837 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2021-04-28 14:40:05,838 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1281 transitions. [2021-04-28 14:40:05,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1281 transitions. [2021-04-28 14:40:05,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:05,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1281 transitions. [2021-04-28 14:40:05,842 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 14:40:05,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 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 14:40:05,848 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 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 14:40:05,848 INFO L185 Difference]: Start difference. First operand has 74 places, 167 transitions, 1564 flow. Second operand 12 states and 1281 transitions. [2021-04-28 14:40:05,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 241 transitions, 2858 flow [2021-04-28 14:40:05,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 241 transitions, 2668 flow, removed 30 selfloop flow, removed 6 redundant places. [2021-04-28 14:40:05,872 INFO L241 Difference]: Finished difference. Result has 83 places, 216 transitions, 2348 flow [2021-04-28 14:40:05,873 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=1430, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2348, PETRI_PLACES=83, PETRI_TRANSITIONS=216} [2021-04-28 14:40:05,873 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 9 predicate places. [2021-04-28 14:40:05,873 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:05,873 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 216 transitions, 2348 flow [2021-04-28 14:40:05,874 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 216 transitions, 2348 flow [2021-04-28 14:40:05,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 216 transitions, 2348 flow [2021-04-28 14:40:05,989 INFO L129 PetriNetUnfolder]: 651/1089 cut-off events. [2021-04-28 14:40:05,989 INFO L130 PetriNetUnfolder]: For 3158/3158 co-relation queries the response was YES. [2021-04-28 14:40:05,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6114 conditions, 1089 events. 651/1089 cut-off events. For 3158/3158 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 5700 event pairs, 0 based on Foata normal form. 0/322 useless extension candidates. Maximal degree in co-relation 6086. Up to 693 conditions per place. [2021-04-28 14:40:06,009 INFO L146 LiptonReduction]: Number of co-enabled transitions 2726 [2021-04-28 14:40:06,043 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:06,043 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:06,043 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 170 [2021-04-28 14:40:06,044 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 216 transitions, 2348 flow [2021-04-28 14:40:06,045 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 14:40:06,045 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:06,045 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:06,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:06,259 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:06,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:06,260 INFO L82 PathProgramCache]: Analyzing trace with hash 2079376961, now seen corresponding path program 1 times [2021-04-28 14:40:06,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:06,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172297286] [2021-04-28 14:40:06,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:06,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:06,285 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:06,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,292 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:40:06,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:06,301 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:40:06,301 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:40:06,320 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:40:06,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,328 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 14:40:06,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172297286] [2021-04-28 14:40:06,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:06,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 14:40:06,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429749064] [2021-04-28 14:40:06,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 14:40:06,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:06,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 14:40:06,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 14:40:06,332 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:06,333 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 216 transitions, 2348 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 14:40:06,333 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:06,333 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:06,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:06,585 INFO L129 PetriNetUnfolder]: 667/1117 cut-off events. [2021-04-28 14:40:06,585 INFO L130 PetriNetUnfolder]: For 4668/4698 co-relation queries the response was YES. [2021-04-28 14:40:06,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7235 conditions, 1117 events. 667/1117 cut-off events. For 4668/4698 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 5792 event pairs, 0 based on Foata normal form. 22/357 useless extension candidates. Maximal degree in co-relation 7205. Up to 798 conditions per place. [2021-04-28 14:40:06,603 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 151 selfloop transitions, 63 changer transitions 6/240 dead transitions. [2021-04-28 14:40:06,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 240 transitions, 3020 flow [2021-04-28 14:40:06,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 14:40:06,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 14:40:06,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 744 transitions. [2021-04-28 14:40:06,607 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5807962529274004 [2021-04-28 14:40:06,607 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 744 transitions. [2021-04-28 14:40:06,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 744 transitions. [2021-04-28 14:40:06,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:06,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 744 transitions. [2021-04-28 14:40:06,610 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 14:40:06,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 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 14:40:06,613 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 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 14:40:06,614 INFO L185 Difference]: Start difference. First operand has 83 places, 216 transitions, 2348 flow. Second operand 7 states and 744 transitions. [2021-04-28 14:40:06,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 240 transitions, 3020 flow [2021-04-28 14:40:06,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 240 transitions, 2508 flow, removed 229 selfloop flow, removed 5 redundant places. [2021-04-28 14:40:06,661 INFO L241 Difference]: Finished difference. Result has 85 places, 214 transitions, 2019 flow [2021-04-28 14:40:06,661 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=1868, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2019, PETRI_PLACES=85, PETRI_TRANSITIONS=214} [2021-04-28 14:40:06,661 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 11 predicate places. [2021-04-28 14:40:06,661 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:06,662 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 214 transitions, 2019 flow [2021-04-28 14:40:06,662 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 214 transitions, 2019 flow [2021-04-28 14:40:06,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 214 transitions, 2019 flow [2021-04-28 14:40:06,765 INFO L129 PetriNetUnfolder]: 643/1073 cut-off events. [2021-04-28 14:40:06,766 INFO L130 PetriNetUnfolder]: For 3709/3733 co-relation queries the response was YES. [2021-04-28 14:40:06,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5585 conditions, 1073 events. 643/1073 cut-off events. For 3709/3733 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 5503 event pairs, 0 based on Foata normal form. 0/325 useless extension candidates. Maximal degree in co-relation 5556. Up to 562 conditions per place. [2021-04-28 14:40:06,786 INFO L146 LiptonReduction]: Number of co-enabled transitions 2710 [2021-04-28 14:40:06,848 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:06,849 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:06,849 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 188 [2021-04-28 14:40:06,850 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 214 transitions, 2019 flow [2021-04-28 14:40:06,850 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 14:40:06,850 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:06,850 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:06,850 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 14:40:06,851 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:06,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:06,851 INFO L82 PathProgramCache]: Analyzing trace with hash 928944542, now seen corresponding path program 1 times [2021-04-28 14:40:06,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:06,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17431027] [2021-04-28 14:40:06,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:06,875 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:06,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,882 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:40:06,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:06,890 INFO L142 QuantifierPusher]: treesize reduction 8, result has 57.9 percent of original size [2021-04-28 14:40:06,891 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:06,907 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:06,907 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:06,921 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 14:40:06,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17431027] [2021-04-28 14:40:06,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:06,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 14:40:06,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775320105] [2021-04-28 14:40:06,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 14:40:06,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:06,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 14:40:06,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 14:40:06,924 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:06,925 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 214 transitions, 2019 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 14:40:06,925 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:06,925 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:06,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:07,255 INFO L129 PetriNetUnfolder]: 755/1293 cut-off events. [2021-04-28 14:40:07,256 INFO L130 PetriNetUnfolder]: For 6584/6626 co-relation queries the response was YES. [2021-04-28 14:40:07,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7770 conditions, 1293 events. 755/1293 cut-off events. For 6584/6626 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 7259 event pairs, 0 based on Foata normal form. 38/435 useless extension candidates. Maximal degree in co-relation 7739. Up to 842 conditions per place. [2021-04-28 14:40:07,275 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 108 selfloop transitions, 135 changer transitions 0/263 dead transitions. [2021-04-28 14:40:07,276 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 263 transitions, 3075 flow [2021-04-28 14:40:07,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 14:40:07,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 14:40:07,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 957 transitions. [2021-04-28 14:40:07,279 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.581056466302368 [2021-04-28 14:40:07,279 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 957 transitions. [2021-04-28 14:40:07,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 957 transitions. [2021-04-28 14:40:07,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:07,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 957 transitions. [2021-04-28 14:40:07,283 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 14:40:07,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 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 14:40:07,287 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 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 14:40:07,287 INFO L185 Difference]: Start difference. First operand has 85 places, 214 transitions, 2019 flow. Second operand 9 states and 957 transitions. [2021-04-28 14:40:07,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 263 transitions, 3075 flow [2021-04-28 14:40:07,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 263 transitions, 2955 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-04-28 14:40:07,320 INFO L241 Difference]: Finished difference. Result has 90 places, 247 transitions, 2808 flow [2021-04-28 14:40:07,321 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=1903, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2808, PETRI_PLACES=90, PETRI_TRANSITIONS=247} [2021-04-28 14:40:07,321 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 16 predicate places. [2021-04-28 14:40:07,321 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:07,321 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 247 transitions, 2808 flow [2021-04-28 14:40:07,321 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 247 transitions, 2808 flow [2021-04-28 14:40:07,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 247 transitions, 2808 flow [2021-04-28 14:40:07,444 INFO L129 PetriNetUnfolder]: 755/1283 cut-off events. [2021-04-28 14:40:07,444 INFO L130 PetriNetUnfolder]: For 4914/4950 co-relation queries the response was YES. [2021-04-28 14:40:07,449 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7725 conditions, 1283 events. 755/1283 cut-off events. For 4914/4950 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 7262 event pairs, 0 based on Foata normal form. 0/389 useless extension candidates. Maximal degree in co-relation 7694. Up to 726 conditions per place. [2021-04-28 14:40:07,468 INFO L146 LiptonReduction]: Number of co-enabled transitions 3016 [2021-04-28 14:40:07,525 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:07,525 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:07,525 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 204 [2021-04-28 14:40:07,526 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 247 transitions, 2808 flow [2021-04-28 14:40:07,527 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 14:40:07,527 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:07,527 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:07,527 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 14:40:07,527 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:07,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:07,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1067673541, now seen corresponding path program 1 times [2021-04-28 14:40:07,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:07,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873793913] [2021-04-28 14:40:07,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:07,552 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:07,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:07,559 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-04-28 14:40:07,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:07,574 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-04-28 14:40:07,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:07,583 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:40:07,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:07,597 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 14:40:07,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873793913] [2021-04-28 14:40:07,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:07,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 14:40:07,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195032757] [2021-04-28 14:40:07,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 14:40:07,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:07,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 14:40:07,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 14:40:07,600 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:07,601 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 247 transitions, 2808 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 14:40:07,601 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:07,601 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:07,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:07,968 INFO L129 PetriNetUnfolder]: 851/1533 cut-off events. [2021-04-28 14:40:07,969 INFO L130 PetriNetUnfolder]: For 7584/7626 co-relation queries the response was YES. [2021-04-28 14:40:07,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10292 conditions, 1533 events. 851/1533 cut-off events. For 7584/7626 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 9688 event pairs, 0 based on Foata normal form. 38/505 useless extension candidates. Maximal degree in co-relation 10259. Up to 1022 conditions per place. [2021-04-28 14:40:08,002 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 166 selfloop transitions, 114 changer transitions 0/300 dead transitions. [2021-04-28 14:40:08,002 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 300 transitions, 4072 flow [2021-04-28 14:40:08,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 14:40:08,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 14:40:08,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 957 transitions. [2021-04-28 14:40:08,007 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.581056466302368 [2021-04-28 14:40:08,007 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 957 transitions. [2021-04-28 14:40:08,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 957 transitions. [2021-04-28 14:40:08,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:08,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 957 transitions. [2021-04-28 14:40:08,011 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 14:40:08,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 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 14:40:08,015 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 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 14:40:08,015 INFO L185 Difference]: Start difference. First operand has 90 places, 247 transitions, 2808 flow. Second operand 9 states and 957 transitions. [2021-04-28 14:40:08,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 300 transitions, 4072 flow [2021-04-28 14:40:08,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 300 transitions, 3933 flow, removed 37 selfloop flow, removed 5 redundant places. [2021-04-28 14:40:08,103 INFO L241 Difference]: Finished difference. Result has 96 places, 280 transitions, 3581 flow [2021-04-28 14:40:08,103 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=2673, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3581, PETRI_PLACES=96, PETRI_TRANSITIONS=280} [2021-04-28 14:40:08,105 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 22 predicate places. [2021-04-28 14:40:08,105 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:08,105 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 280 transitions, 3581 flow [2021-04-28 14:40:08,106 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 280 transitions, 3581 flow [2021-04-28 14:40:08,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 280 transitions, 3581 flow [2021-04-28 14:40:08,269 INFO L129 PetriNetUnfolder]: 851/1525 cut-off events. [2021-04-28 14:40:08,270 INFO L130 PetriNetUnfolder]: For 6245/6281 co-relation queries the response was YES. [2021-04-28 14:40:08,277 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10041 conditions, 1525 events. 851/1525 cut-off events. For 6245/6281 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 9746 event pairs, 0 based on Foata normal form. 0/460 useless extension candidates. Maximal degree in co-relation 10007. Up to 858 conditions per place. [2021-04-28 14:40:08,336 INFO L146 LiptonReduction]: Number of co-enabled transitions 3330 [2021-04-28 14:40:08,408 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:08,408 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:08,408 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 303 [2021-04-28 14:40:08,409 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 280 transitions, 3581 flow [2021-04-28 14:40:08,410 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 14:40:08,410 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:08,410 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:08,410 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 14:40:08,410 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:08,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:08,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1779013755, now seen corresponding path program 1 times [2021-04-28 14:40:08,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:08,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683159423] [2021-04-28 14:40:08,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:08,444 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:08,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:08,451 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:40:08,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:08,460 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:40:08,460 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:40:08,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:08,492 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:08,494 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:08,509 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 14:40:08,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683159423] [2021-04-28 14:40:08,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696415395] [2021-04-28 14:40:08,510 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 14:40:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:08,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:08,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:08,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:08,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:08,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:08,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:08,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:08,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:08,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:08,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:08,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:08,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:08,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:08,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:08,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:08,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:08,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:08,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:08,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:08,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:08,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:08,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:08,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:08,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:08,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:08,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:08,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:08,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:08,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:08,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:08,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:08,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:08,643 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:40:08,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:08,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:08,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:08,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:08,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:08,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:08,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:08,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:08,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:08,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:08,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:08,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:08,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:08,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:08,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:08,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:08,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:08,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:08,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:08,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:08,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:08,713 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:08,714 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:08,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:08,731 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 14:40:08,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:08,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-04-28 14:40:08,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505826472] [2021-04-28 14:40:08,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-28 14:40:08,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:08,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-28 14:40:08,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-04-28 14:40:08,735 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:08,737 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 280 transitions, 3581 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 14:40:08,737 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:08,737 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:08,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:09,228 INFO L129 PetriNetUnfolder]: 867/1585 cut-off events. [2021-04-28 14:40:09,228 INFO L130 PetriNetUnfolder]: For 7709/7751 co-relation queries the response was YES. [2021-04-28 14:40:09,235 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11622 conditions, 1585 events. 867/1585 cut-off events. For 7709/7751 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 10290 event pairs, 0 based on Foata normal form. 22/501 useless extension candidates. Maximal degree in co-relation 11586. Up to 1085 conditions per place. [2021-04-28 14:40:09,251 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 204 selfloop transitions, 87 changer transitions 9/320 dead transitions. [2021-04-28 14:40:09,251 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 320 transitions, 4633 flow [2021-04-28 14:40:09,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-28 14:40:09,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-04-28 14:40:09,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1059 transitions. [2021-04-28 14:40:09,256 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.578688524590164 [2021-04-28 14:40:09,256 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1059 transitions. [2021-04-28 14:40:09,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1059 transitions. [2021-04-28 14:40:09,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:09,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1059 transitions. [2021-04-28 14:40:09,260 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 14:40:09,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 0 states have call successors, (0), 0 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 14:40:09,264 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 0 states have call successors, (0), 0 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 14:40:09,264 INFO L185 Difference]: Start difference. First operand has 96 places, 280 transitions, 3581 flow. Second operand 10 states and 1059 transitions. [2021-04-28 14:40:09,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 320 transitions, 4633 flow [2021-04-28 14:40:09,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 320 transitions, 4450 flow, removed 71 selfloop flow, removed 4 redundant places. [2021-04-28 14:40:09,367 INFO L241 Difference]: Finished difference. Result has 104 places, 287 transitions, 3720 flow [2021-04-28 14:40:09,368 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=3406, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3720, PETRI_PLACES=104, PETRI_TRANSITIONS=287} [2021-04-28 14:40:09,368 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 30 predicate places. [2021-04-28 14:40:09,368 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:09,368 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 287 transitions, 3720 flow [2021-04-28 14:40:09,368 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 287 transitions, 3720 flow [2021-04-28 14:40:09,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 287 transitions, 3720 flow [2021-04-28 14:40:09,534 INFO L129 PetriNetUnfolder]: 831/1510 cut-off events. [2021-04-28 14:40:09,534 INFO L130 PetriNetUnfolder]: For 6474/6534 co-relation queries the response was YES. [2021-04-28 14:40:09,542 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9938 conditions, 1510 events. 831/1510 cut-off events. For 6474/6534 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 9776 event pairs, 0 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 9900. Up to 842 conditions per place. [2021-04-28 14:40:09,566 INFO L146 LiptonReduction]: Number of co-enabled transitions 3458 [2021-04-28 14:40:09,633 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:09,634 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:09,634 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 266 [2021-04-28 14:40:09,635 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 287 transitions, 3720 flow [2021-04-28 14:40:09,635 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 14:40:09,636 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:09,636 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:09,849 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-04-28 14:40:09,850 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:09,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:09,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1268711540, now seen corresponding path program 1 times [2021-04-28 14:40:09,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:09,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691167880] [2021-04-28 14:40:09,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:09,877 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:09,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,883 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:09,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:09,891 INFO L142 QuantifierPusher]: treesize reduction 13, result has 45.8 percent of original size [2021-04-28 14:40:09,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:09,902 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-04-28 14:40:09,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:09,919 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:09,920 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:09,933 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 14:40:09,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691167880] [2021-04-28 14:40:09,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979504441] [2021-04-28 14:40:09,934 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 14:40:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:10,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:10,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:10,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:10,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:10,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:10,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:10,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:10,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:10,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:10,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:10,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:10,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:10,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:10,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:10,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:10,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:10,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:10,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:10,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:10,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:10,084 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-04-28 14:40:10,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:40:10,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:40:10,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:10,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:10,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:10,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:10,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:10,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:10,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:10,121 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:10,122 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:10,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:10,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:10,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:10,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-04-28 14:40:10,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139104047] [2021-04-28 14:40:10,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-28 14:40:10,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:10,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-28 14:40:10,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-04-28 14:40:10,140 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:10,142 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 287 transitions, 3720 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 14:40:10,142 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:10,142 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:10,142 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:10,579 INFO L129 PetriNetUnfolder]: 863/1609 cut-off events. [2021-04-28 14:40:10,580 INFO L130 PetriNetUnfolder]: For 8541/8595 co-relation queries the response was YES. [2021-04-28 14:40:10,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11770 conditions, 1609 events. 863/1609 cut-off events. For 8541/8595 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 10697 event pairs, 0 based on Foata normal form. 22/515 useless extension candidates. Maximal degree in co-relation 11730. Up to 1098 conditions per place. [2021-04-28 14:40:10,601 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 192 selfloop transitions, 100 changer transitions 3/315 dead transitions. [2021-04-28 14:40:10,601 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 315 transitions, 4690 flow [2021-04-28 14:40:10,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 14:40:10,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 14:40:10,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 956 transitions. [2021-04-28 14:40:10,606 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5804493017607771 [2021-04-28 14:40:10,606 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 956 transitions. [2021-04-28 14:40:10,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 956 transitions. [2021-04-28 14:40:10,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:10,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 956 transitions. [2021-04-28 14:40:10,610 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 14:40:10,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 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 14:40:10,614 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 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 14:40:10,614 INFO L185 Difference]: Start difference. First operand has 104 places, 287 transitions, 3720 flow. Second operand 9 states and 956 transitions. [2021-04-28 14:40:10,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 315 transitions, 4690 flow [2021-04-28 14:40:10,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 315 transitions, 4514 flow, removed 33 selfloop flow, removed 6 redundant places. [2021-04-28 14:40:10,705 INFO L241 Difference]: Finished difference. Result has 107 places, 292 transitions, 3979 flow [2021-04-28 14:40:10,705 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=3564, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3979, PETRI_PLACES=107, PETRI_TRANSITIONS=292} [2021-04-28 14:40:10,705 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 33 predicate places. [2021-04-28 14:40:10,705 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:10,706 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 292 transitions, 3979 flow [2021-04-28 14:40:10,706 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 292 transitions, 3979 flow [2021-04-28 14:40:10,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 292 transitions, 3979 flow [2021-04-28 14:40:10,869 INFO L129 PetriNetUnfolder]: 851/1573 cut-off events. [2021-04-28 14:40:10,869 INFO L130 PetriNetUnfolder]: For 7074/7146 co-relation queries the response was YES. [2021-04-28 14:40:10,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10457 conditions, 1573 events. 851/1573 cut-off events. For 7074/7146 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 10382 event pairs, 0 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 10419. Up to 862 conditions per place. [2021-04-28 14:40:10,895 INFO L146 LiptonReduction]: Number of co-enabled transitions 3498 [2021-04-28 14:40:10,935 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:10,935 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:10,935 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 230 [2021-04-28 14:40:10,936 INFO L480 AbstractCegarLoop]: Abstraction has has 107 places, 292 transitions, 3979 flow [2021-04-28 14:40:10,937 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 14:40:10,937 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:10,937 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:11,150 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:11,151 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:11,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:11,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1798409835, now seen corresponding path program 2 times [2021-04-28 14:40:11,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:11,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265237463] [2021-04-28 14:40:11,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:11,193 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:11,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,200 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:40:11,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,208 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-04-28 14:40:11,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,217 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-04-28 14:40:11,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,227 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:40:11,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,236 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 14:40:11,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265237463] [2021-04-28 14:40:11,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079553739] [2021-04-28 14:40:11,237 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 14:40:11,319 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:40:11,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:11,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:11,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:11,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:11,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:11,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:11,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:11,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:11,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:11,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:11,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:11,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:11,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:11,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:11,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:11,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:11,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:11,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:11,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:11,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:11,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:11,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:11,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:11,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:11,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:40:11,435 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-04-28 14:40:11,438 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:11,438 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:11,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:11,446 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 14:40:11,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:11,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-04-28 14:40:11,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102695258] [2021-04-28 14:40:11,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-28 14:40:11,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:11,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-28 14:40:11,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-04-28 14:40:11,449 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:11,451 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 292 transitions, 3979 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 14:40:11,451 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:11,451 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:11,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:12,290 INFO L129 PetriNetUnfolder]: 1107/2134 cut-off events. [2021-04-28 14:40:12,291 INFO L130 PetriNetUnfolder]: For 12198/12252 co-relation queries the response was YES. [2021-04-28 14:40:12,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15975 conditions, 2134 events. 1107/2134 cut-off events. For 12198/12252 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 15453 event pairs, 0 based on Foata normal form. 54/702 useless extension candidates. Maximal degree in co-relation 15935. Up to 1258 conditions per place. [2021-04-28 14:40:12,319 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 47 selfloop transitions, 304 changer transitions 3/374 dead transitions. [2021-04-28 14:40:12,319 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 374 transitions, 6307 flow [2021-04-28 14:40:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-28 14:40:12,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-04-28 14:40:12,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1600 transitions. [2021-04-28 14:40:12,324 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5828779599271403 [2021-04-28 14:40:12,324 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1600 transitions. [2021-04-28 14:40:12,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1600 transitions. [2021-04-28 14:40:12,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:12,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1600 transitions. [2021-04-28 14:40:12,328 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 14:40:12,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 183.0) internal successors, (2928), 16 states have internal predecessors, (2928), 0 states have call successors, (0), 0 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 14:40:12,335 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 183.0) internal successors, (2928), 16 states have internal predecessors, (2928), 0 states have call successors, (0), 0 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 14:40:12,335 INFO L185 Difference]: Start difference. First operand has 107 places, 292 transitions, 3979 flow. Second operand 15 states and 1600 transitions. [2021-04-28 14:40:12,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 374 transitions, 6307 flow [2021-04-28 14:40:12,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 374 transitions, 6124 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-04-28 14:40:12,437 INFO L241 Difference]: Finished difference. Result has 116 places, 371 transitions, 6238 flow [2021-04-28 14:40:12,438 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=3808, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6238, PETRI_PLACES=116, PETRI_TRANSITIONS=371} [2021-04-28 14:40:12,438 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 42 predicate places. [2021-04-28 14:40:12,438 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:12,438 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 371 transitions, 6238 flow [2021-04-28 14:40:12,438 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 371 transitions, 6238 flow [2021-04-28 14:40:12,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 371 transitions, 6238 flow [2021-04-28 14:40:12,664 INFO L129 PetriNetUnfolder]: 1095/2110 cut-off events. [2021-04-28 14:40:12,664 INFO L130 PetriNetUnfolder]: For 9433/9505 co-relation queries the response was YES. [2021-04-28 14:40:12,672 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16152 conditions, 2110 events. 1095/2110 cut-off events. For 9433/9505 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 15604 event pairs, 0 based on Foata normal form. 0/640 useless extension candidates. Maximal degree in co-relation 16112. Up to 1246 conditions per place. [2021-04-28 14:40:12,696 INFO L146 LiptonReduction]: Number of co-enabled transitions 4230 [2021-04-28 14:40:12,772 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:12,772 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:12,772 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 334 [2021-04-28 14:40:12,773 INFO L480 AbstractCegarLoop]: Abstraction has has 116 places, 371 transitions, 6238 flow [2021-04-28 14:40:12,774 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 14:40:12,774 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:12,774 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:12,987 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-04-28 14:40:12,988 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:12,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:12,989 INFO L82 PathProgramCache]: Analyzing trace with hash 877133305, now seen corresponding path program 1 times [2021-04-28 14:40:12,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:12,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680534507] [2021-04-28 14:40:12,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:13,021 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:13,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,027 INFO L142 QuantifierPusher]: treesize reduction 7, result has 56.3 percent of original size [2021-04-28 14:40:13,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:13,034 INFO L142 QuantifierPusher]: treesize reduction 7, result has 61.1 percent of original size [2021-04-28 14:40:13,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,043 INFO L142 QuantifierPusher]: treesize reduction 7, result has 61.1 percent of original size [2021-04-28 14:40:13,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,052 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-04-28 14:40:13,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:13,070 INFO L142 QuantifierPusher]: treesize reduction 10, result has 41.2 percent of original size [2021-04-28 14:40:13,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,079 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 14:40:13,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680534507] [2021-04-28 14:40:13,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271468524] [2021-04-28 14:40:13,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 14:40:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:13,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:13,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:13,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:13,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:13,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:13,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:13,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:13,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:13,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:13,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:13,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:13,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:13,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:13,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:13,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:13,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:13,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:13,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:13,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:13,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:13,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:13,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:13,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:13,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:13,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:13,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:13,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:13,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:13,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:13,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:13,289 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-04-28 14:40:13,290 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-28 14:40:13,291 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:13,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:13,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:13,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:13,316 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 14:40:13,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:13,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:40:13,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891232625] [2021-04-28 14:40:13,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:40:13,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:13,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:40:13,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:40:13,319 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:13,322 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 371 transitions, 6238 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 14:40:13,322 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:13,322 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:13,322 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:14,126 INFO L129 PetriNetUnfolder]: 1311/2414 cut-off events. [2021-04-28 14:40:14,126 INFO L130 PetriNetUnfolder]: For 13035/13089 co-relation queries the response was YES. [2021-04-28 14:40:14,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21113 conditions, 2414 events. 1311/2414 cut-off events. For 13035/13089 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 16734 event pairs, 0 based on Foata normal form. 18/746 useless extension candidates. Maximal degree in co-relation 21071. Up to 1723 conditions per place. [2021-04-28 14:40:14,157 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 256 selfloop transitions, 177 changer transitions 0/453 dead transitions. [2021-04-28 14:40:14,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 453 transitions, 8792 flow [2021-04-28 14:40:14,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-28 14:40:14,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-04-28 14:40:14,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1600 transitions. [2021-04-28 14:40:14,165 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5828779599271403 [2021-04-28 14:40:14,165 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1600 transitions. [2021-04-28 14:40:14,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1600 transitions. [2021-04-28 14:40:14,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:14,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1600 transitions. [2021-04-28 14:40:14,174 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 14:40:14,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 183.0) internal successors, (2928), 16 states have internal predecessors, (2928), 0 states have call successors, (0), 0 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 14:40:14,180 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 183.0) internal successors, (2928), 16 states have internal predecessors, (2928), 0 states have call successors, (0), 0 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 14:40:14,180 INFO L185 Difference]: Start difference. First operand has 116 places, 371 transitions, 6238 flow. Second operand 15 states and 1600 transitions. [2021-04-28 14:40:14,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 453 transitions, 8792 flow [2021-04-28 14:40:14,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 453 transitions, 7555 flow, removed 473 selfloop flow, removed 12 redundant places. [2021-04-28 14:40:14,497 INFO L241 Difference]: Finished difference. Result has 121 places, 453 transitions, 7181 flow [2021-04-28 14:40:14,497 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=5365, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7181, PETRI_PLACES=121, PETRI_TRANSITIONS=453} [2021-04-28 14:40:14,498 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 47 predicate places. [2021-04-28 14:40:14,498 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:14,498 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 453 transitions, 7181 flow [2021-04-28 14:40:14,498 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 453 transitions, 7181 flow [2021-04-28 14:40:14,503 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 453 transitions, 7181 flow [2021-04-28 14:40:14,729 INFO L129 PetriNetUnfolder]: 1311/2430 cut-off events. [2021-04-28 14:40:14,729 INFO L130 PetriNetUnfolder]: For 9877/9907 co-relation queries the response was YES. [2021-04-28 14:40:14,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16937 conditions, 2430 events. 1311/2430 cut-off events. For 9877/9907 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 17493 event pairs, 0 based on Foata normal form. 0/730 useless extension candidates. Maximal degree in co-relation 16897. Up to 1185 conditions per place. [2021-04-28 14:40:14,769 INFO L146 LiptonReduction]: Number of co-enabled transitions 5222 [2021-04-28 14:40:14,865 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:14,865 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:14,865 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 367 [2021-04-28 14:40:14,866 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 453 transitions, 7181 flow [2021-04-28 14:40:14,866 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 14:40:14,866 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:14,867 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:15,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-04-28 14:40:15,081 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:15,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:15,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1927529747, now seen corresponding path program 1 times [2021-04-28 14:40:15,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:15,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848861572] [2021-04-28 14:40:15,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:15,131 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:15,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,137 INFO L142 QuantifierPusher]: treesize reduction 16, result has 38.5 percent of original size [2021-04-28 14:40:15,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:15,146 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-04-28 14:40:15,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:15,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:15,168 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:15,168 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:15,182 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 14:40:15,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848861572] [2021-04-28 14:40:15,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777225077] [2021-04-28 14:40:15,183 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 14:40:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:15,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:15,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:15,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:15,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:15,266 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-04-28 14:40:15,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:15,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:15,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:15,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:15,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:15,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:15,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:15,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:15,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:15,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:15,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:15,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:15,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:15,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:15,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:15,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:15,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:15,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:15,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:15,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:15,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:15,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:15,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:15,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:15,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:15,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:15,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:15,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:15,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,338 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:15,339 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:15,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:15,354 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 14:40:15,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:15,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-04-28 14:40:15,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027803172] [2021-04-28 14:40:15,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-28 14:40:15,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:15,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-28 14:40:15,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-04-28 14:40:15,358 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:15,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 453 transitions, 7181 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 14:40:15,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:15,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:15,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:16,040 INFO L129 PetriNetUnfolder]: 1386/2570 cut-off events. [2021-04-28 14:40:16,040 INFO L130 PetriNetUnfolder]: For 11367/11421 co-relation queries the response was YES. [2021-04-28 14:40:16,052 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19842 conditions, 2570 events. 1386/2570 cut-off events. For 11367/11421 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 18250 event pairs, 0 based on Foata normal form. 22/790 useless extension candidates. Maximal degree in co-relation 19800. Up to 1860 conditions per place. [2021-04-28 14:40:16,081 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 426 selfloop transitions, 85 changer transitions 3/534 dead transitions. [2021-04-28 14:40:16,081 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 534 transitions, 9170 flow [2021-04-28 14:40:16,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-28 14:40:16,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-28 14:40:16,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 844 transitions. [2021-04-28 14:40:16,084 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5765027322404371 [2021-04-28 14:40:16,084 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 844 transitions. [2021-04-28 14:40:16,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 844 transitions. [2021-04-28 14:40:16,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:16,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 844 transitions. [2021-04-28 14:40:16,087 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 14:40:16,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 183.0) internal successors, (1647), 9 states have internal predecessors, (1647), 0 states have call successors, (0), 0 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 14:40:16,090 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 183.0) internal successors, (1647), 9 states have internal predecessors, (1647), 0 states have call successors, (0), 0 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 14:40:16,090 INFO L185 Difference]: Start difference. First operand has 121 places, 453 transitions, 7181 flow. Second operand 8 states and 844 transitions. [2021-04-28 14:40:16,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 534 transitions, 9170 flow [2021-04-28 14:40:16,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 534 transitions, 8767 flow, removed 136 selfloop flow, removed 8 redundant places. [2021-04-28 14:40:16,263 INFO L241 Difference]: Finished difference. Result has 123 places, 479 transitions, 7452 flow [2021-04-28 14:40:16,263 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=6790, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7452, PETRI_PLACES=123, PETRI_TRANSITIONS=479} [2021-04-28 14:40:16,264 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 49 predicate places. [2021-04-28 14:40:16,264 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:16,264 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 479 transitions, 7452 flow [2021-04-28 14:40:16,264 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 479 transitions, 7452 flow [2021-04-28 14:40:16,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 479 transitions, 7452 flow [2021-04-28 14:40:16,477 INFO L129 PetriNetUnfolder]: 1374/2555 cut-off events. [2021-04-28 14:40:16,477 INFO L130 PetriNetUnfolder]: For 11358/11370 co-relation queries the response was YES. [2021-04-28 14:40:16,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17890 conditions, 2555 events. 1374/2555 cut-off events. For 11358/11370 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 18638 event pairs, 0 based on Foata normal form. 0/767 useless extension candidates. Maximal degree in co-relation 17846. Up to 1213 conditions per place. [2021-04-28 14:40:16,517 INFO L146 LiptonReduction]: Number of co-enabled transitions 5470 [2021-04-28 14:40:16,598 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:16,598 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:16,598 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 334 [2021-04-28 14:40:16,599 INFO L480 AbstractCegarLoop]: Abstraction has has 123 places, 479 transitions, 7452 flow [2021-04-28 14:40:16,600 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 14:40:16,600 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:16,600 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:16,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-04-28 14:40:16,812 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:16,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:16,813 INFO L82 PathProgramCache]: Analyzing trace with hash -514212925, now seen corresponding path program 1 times [2021-04-28 14:40:16,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:16,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395091224] [2021-04-28 14:40:16,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:16,843 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:16,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,856 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:16,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,864 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-04-28 14:40:16,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,876 INFO L142 QuantifierPusher]: treesize reduction 12, result has 36.8 percent of original size [2021-04-28 14:40:16,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,889 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:16,890 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:16,903 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 14:40:16,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395091224] [2021-04-28 14:40:16,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86537617] [2021-04-28 14:40:16,903 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 14:40:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:16,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:16,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:16,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:17,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:17,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:17,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:17,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:17,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:17,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:17,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:17,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:17,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:17,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:17,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:17,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:17,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:17,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:17,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:17,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:17,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:17,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:17,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:17,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:17,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:17,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:17,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:17,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:17,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:17,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:17,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:17,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:17,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:17,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:17,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:17,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:17,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:17,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:17,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:17,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:17,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:17,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:17,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:17,078 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-04-28 14:40:17,079 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-28 14:40:17,080 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:17,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:17,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:17,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:17,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:17,100 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 14:40:17,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:17,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-04-28 14:40:17,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095046795] [2021-04-28 14:40:17,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-28 14:40:17,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:17,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-28 14:40:17,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-04-28 14:40:17,104 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:17,106 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 479 transitions, 7452 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 14:40:17,106 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:17,106 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:17,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:18,004 INFO L129 PetriNetUnfolder]: 1694/3343 cut-off events. [2021-04-28 14:40:18,004 INFO L130 PetriNetUnfolder]: For 25845/25887 co-relation queries the response was YES. [2021-04-28 14:40:18,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25479 conditions, 3343 events. 1694/3343 cut-off events. For 25845/25887 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 26579 event pairs, 0 based on Foata normal form. 86/1083 useless extension candidates. Maximal degree in co-relation 25433. Up to 1681 conditions per place. [2021-04-28 14:40:18,041 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 162 selfloop transitions, 434 changer transitions 18/634 dead transitions. [2021-04-28 14:40:18,041 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 634 transitions, 11157 flow [2021-04-28 14:40:18,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-04-28 14:40:18,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-04-28 14:40:18,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1816 transitions. [2021-04-28 14:40:18,046 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5837351333976214 [2021-04-28 14:40:18,046 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1816 transitions. [2021-04-28 14:40:18,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1816 transitions. [2021-04-28 14:40:18,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:18,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1816 transitions. [2021-04-28 14:40:18,051 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 14:40:18,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 0 states have call successors, (0), 0 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 14:40:18,056 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 0 states have call successors, (0), 0 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 14:40:18,056 INFO L185 Difference]: Start difference. First operand has 123 places, 479 transitions, 7452 flow. Second operand 17 states and 1816 transitions. [2021-04-28 14:40:18,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 634 transitions, 11157 flow [2021-04-28 14:40:18,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 634 transitions, 11056 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-04-28 14:40:18,365 INFO L241 Difference]: Finished difference. Result has 141 places, 588 transitions, 10591 flow [2021-04-28 14:40:18,366 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=7363, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=479, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=336, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=10591, PETRI_PLACES=141, PETRI_TRANSITIONS=588} [2021-04-28 14:40:18,366 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 67 predicate places. [2021-04-28 14:40:18,366 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:18,366 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 588 transitions, 10591 flow [2021-04-28 14:40:18,367 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 588 transitions, 10591 flow [2021-04-28 14:40:18,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 141 places, 588 transitions, 10591 flow [2021-04-28 14:40:18,700 INFO L129 PetriNetUnfolder]: 1622/3222 cut-off events. [2021-04-28 14:40:18,700 INFO L130 PetriNetUnfolder]: For 18030/18072 co-relation queries the response was YES. [2021-04-28 14:40:18,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25320 conditions, 3222 events. 1622/3222 cut-off events. For 18030/18072 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 26203 event pairs, 0 based on Foata normal form. 0/984 useless extension candidates. Maximal degree in co-relation 25270. Up to 1609 conditions per place. [2021-04-28 14:40:18,739 INFO L146 LiptonReduction]: Number of co-enabled transitions 6556 [2021-04-28 14:40:18,887 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:18,889 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:18,889 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 523 [2021-04-28 14:40:18,889 INFO L480 AbstractCegarLoop]: Abstraction has has 141 places, 588 transitions, 10591 flow [2021-04-28 14:40:18,890 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 14:40:18,890 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:18,890 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:19,103 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:19,104 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:19,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:19,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1977716260, now seen corresponding path program 1 times [2021-04-28 14:40:19,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:19,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49081090] [2021-04-28 14:40:19,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:19,142 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:19,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,149 INFO L142 QuantifierPusher]: treesize reduction 16, result has 38.5 percent of original size [2021-04-28 14:40:19,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:19,157 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-04-28 14:40:19,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:19,167 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:40:19,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:19,178 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:40:19,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:19,190 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:19,191 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:19,206 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 14:40:19,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49081090] [2021-04-28 14:40:19,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378908046] [2021-04-28 14:40:19,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:19,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:19,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:19,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:19,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:19,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:19,317 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-04-28 14:40:19,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:19,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:19,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:19,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:19,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:19,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:19,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:19,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:19,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:19,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:19,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:19,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:19,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:19,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:19,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:19,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:19,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:19,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:19,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:19,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:19,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:19,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:19,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:19,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:19,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:19,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:19,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:19,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:19,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:19,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:19,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:19,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:19,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:19,413 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:19,414 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:19,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:19,436 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 14:40:19,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:19,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:40:19,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75169754] [2021-04-28 14:40:19,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:40:19,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:19,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:40:19,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:40:19,440 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:19,441 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 588 transitions, 10591 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 14:40:19,441 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:19,442 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:19,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:20,092 INFO L129 PetriNetUnfolder]: 1654/3337 cut-off events. [2021-04-28 14:40:20,093 INFO L130 PetriNetUnfolder]: For 22396/22450 co-relation queries the response was YES. [2021-04-28 14:40:20,105 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28344 conditions, 3337 events. 1654/3337 cut-off events. For 22396/22450 co-relation queries the response was YES. Maximal size of possible extension queue 493. Compared 27138 event pairs, 0 based on Foata normal form. 26/1039 useless extension candidates. Maximal degree in co-relation 28292. Up to 2376 conditions per place. [2021-04-28 14:40:20,131 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 543 selfloop transitions, 74 changer transitions 3/640 dead transitions. [2021-04-28 14:40:20,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 640 transitions, 12491 flow [2021-04-28 14:40:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-28 14:40:20,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-28 14:40:20,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 844 transitions. [2021-04-28 14:40:20,134 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5765027322404371 [2021-04-28 14:40:20,134 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 844 transitions. [2021-04-28 14:40:20,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 844 transitions. [2021-04-28 14:40:20,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:20,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 844 transitions. [2021-04-28 14:40:20,137 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 14:40:20,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 183.0) internal successors, (1647), 9 states have internal predecessors, (1647), 0 states have call successors, (0), 0 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 14:40:20,139 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 183.0) internal successors, (1647), 9 states have internal predecessors, (1647), 0 states have call successors, (0), 0 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 14:40:20,139 INFO L185 Difference]: Start difference. First operand has 141 places, 588 transitions, 10591 flow. Second operand 8 states and 844 transitions. [2021-04-28 14:40:20,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 640 transitions, 12491 flow [2021-04-28 14:40:20,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 640 transitions, 11326 flow, removed 498 selfloop flow, removed 10 redundant places. [2021-04-28 14:40:20,647 INFO L241 Difference]: Finished difference. Result has 140 places, 593 transitions, 9792 flow [2021-04-28 14:40:20,647 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=9466, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9792, PETRI_PLACES=140, PETRI_TRANSITIONS=593} [2021-04-28 14:40:20,647 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 66 predicate places. [2021-04-28 14:40:20,647 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:20,648 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 593 transitions, 9792 flow [2021-04-28 14:40:20,648 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 593 transitions, 9792 flow [2021-04-28 14:40:20,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 140 places, 593 transitions, 9792 flow [2021-04-28 14:40:20,995 INFO L129 PetriNetUnfolder]: 1642/3267 cut-off events. [2021-04-28 14:40:20,995 INFO L130 PetriNetUnfolder]: For 15173/15197 co-relation queries the response was YES. [2021-04-28 14:40:21,006 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23972 conditions, 3267 events. 1642/3267 cut-off events. For 15173/15197 co-relation queries the response was YES. Maximal size of possible extension queue 481. Compared 26467 event pairs, 0 based on Foata normal form. 0/996 useless extension candidates. Maximal degree in co-relation 23921. Up to 1586 conditions per place. [2021-04-28 14:40:21,033 INFO L146 LiptonReduction]: Number of co-enabled transitions 6610 [2021-04-28 14:40:21,151 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:21,151 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:21,151 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 504 [2021-04-28 14:40:21,152 INFO L480 AbstractCegarLoop]: Abstraction has has 140 places, 593 transitions, 9792 flow [2021-04-28 14:40:21,152 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 14:40:21,152 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:21,153 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:21,365 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-04-28 14:40:21,366 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:21,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:21,366 INFO L82 PathProgramCache]: Analyzing trace with hash -537024399, now seen corresponding path program 3 times [2021-04-28 14:40:21,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:21,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922837522] [2021-04-28 14:40:21,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:21,392 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:21,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,406 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:21,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:21,421 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-04-28 14:40:21,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:21,431 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:40:21,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:21,443 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:40:21,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:21,454 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:21,455 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:21,472 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 14:40:21,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922837522] [2021-04-28 14:40:21,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079611025] [2021-04-28 14:40:21,473 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 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 14:40:21,537 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-04-28 14:40:21,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:21,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:21,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:21,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:21,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:21,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:21,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:21,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:21,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:21,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:21,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:21,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:21,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:21,586 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-04-28 14:40:21,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:21,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:21,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:21,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:21,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:21,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:21,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:21,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:21,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:21,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:21,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:21,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:21,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:21,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:21,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:21,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:21,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:21,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:21,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:21,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:21,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:21,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:21,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:21,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:21,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,662 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:21,662 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:21,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:21,681 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 14:40:21,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:21,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:40:21,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930883875] [2021-04-28 14:40:21,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:40:21,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:21,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:40:21,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:40:21,684 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:21,686 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 593 transitions, 9792 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 14:40:21,686 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:21,686 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:21,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:22,519 INFO L129 PetriNetUnfolder]: 1697/3408 cut-off events. [2021-04-28 14:40:22,520 INFO L130 PetriNetUnfolder]: For 19952/19994 co-relation queries the response was YES. [2021-04-28 14:40:22,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27195 conditions, 3408 events. 1697/3408 cut-off events. For 19952/19994 co-relation queries the response was YES. Maximal size of possible extension queue 506. Compared 27778 event pairs, 0 based on Foata normal form. 26/1057 useless extension candidates. Maximal degree in co-relation 27142. Up to 2310 conditions per place. [2021-04-28 14:40:22,546 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 502 selfloop transitions, 124 changer transitions 3/649 dead transitions. [2021-04-28 14:40:22,546 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 649 transitions, 11722 flow [2021-04-28 14:40:22,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 14:40:22,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 14:40:22,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 952 transitions. [2021-04-28 14:40:22,550 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5780206435944141 [2021-04-28 14:40:22,550 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 952 transitions. [2021-04-28 14:40:22,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 952 transitions. [2021-04-28 14:40:22,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:22,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 952 transitions. [2021-04-28 14:40:22,552 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 14:40:22,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 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 14:40:22,555 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 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 14:40:22,555 INFO L185 Difference]: Start difference. First operand has 140 places, 593 transitions, 9792 flow. Second operand 9 states and 952 transitions. [2021-04-28 14:40:22,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 649 transitions, 11722 flow [2021-04-28 14:40:22,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 649 transitions, 11537 flow, removed 52 selfloop flow, removed 5 redundant places. [2021-04-28 14:40:22,789 INFO L241 Difference]: Finished difference. Result has 146 places, 610 transitions, 10254 flow [2021-04-28 14:40:22,790 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=9607, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=593, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10254, PETRI_PLACES=146, PETRI_TRANSITIONS=610} [2021-04-28 14:40:22,790 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 72 predicate places. [2021-04-28 14:40:22,790 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:22,790 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 610 transitions, 10254 flow [2021-04-28 14:40:22,790 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 610 transitions, 10254 flow [2021-04-28 14:40:22,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 146 places, 610 transitions, 10254 flow [2021-04-28 14:40:23,151 INFO L129 PetriNetUnfolder]: 1685/3324 cut-off events. [2021-04-28 14:40:23,152 INFO L130 PetriNetUnfolder]: For 17232/17244 co-relation queries the response was YES. [2021-04-28 14:40:23,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24857 conditions, 3324 events. 1685/3324 cut-off events. For 17232/17244 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 26839 event pairs, 0 based on Foata normal form. 0/1013 useless extension candidates. Maximal degree in co-relation 24803. Up to 1631 conditions per place. [2021-04-28 14:40:23,191 INFO L146 LiptonReduction]: Number of co-enabled transitions 6792 [2021-04-28 14:40:23,298 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:23,299 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:23,299 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 509 [2021-04-28 14:40:23,299 INFO L480 AbstractCegarLoop]: Abstraction has has 146 places, 610 transitions, 10254 flow [2021-04-28 14:40:23,300 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 14:40:23,300 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:23,300 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:23,507 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:23,508 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:23,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:23,508 INFO L82 PathProgramCache]: Analyzing trace with hash -489050349, now seen corresponding path program 2 times [2021-04-28 14:40:23,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:23,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282109631] [2021-04-28 14:40:23,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:23,548 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:23,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,554 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:23,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:23,561 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:40:23,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:23,568 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:40:23,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:23,583 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:40:23,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:23,597 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:23,597 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:23,611 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 14:40:23,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282109631] [2021-04-28 14:40:23,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973545159] [2021-04-28 14:40:23,612 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 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 14:40:23,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:40:23,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:23,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:23,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:23,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:23,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:23,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:23,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:23,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:23,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:23,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:23,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:23,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:23,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:23,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:23,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:23,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:23,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:23,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:23,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:23,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:23,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:23,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:23,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:23,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:23,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:23,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:23,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:23,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:23,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:23,770 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-04-28 14:40:23,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:23,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:23,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:23,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:23,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:23,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:23,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:23,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:23,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,797 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:23,804 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:23,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:23,819 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 14:40:23,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:23,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:40:23,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029331773] [2021-04-28 14:40:23,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:40:23,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:23,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:40:23,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:40:23,828 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:23,829 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 610 transitions, 10254 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 14:40:23,829 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:23,830 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:23,830 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:24,689 INFO L129 PetriNetUnfolder]: 1717/3447 cut-off events. [2021-04-28 14:40:24,689 INFO L130 PetriNetUnfolder]: For 22762/22804 co-relation queries the response was YES. [2021-04-28 14:40:24,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28007 conditions, 3447 events. 1717/3447 cut-off events. For 22762/22804 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 28170 event pairs, 0 based on Foata normal form. 26/1067 useless extension candidates. Maximal degree in co-relation 27951. Up to 2229 conditions per place. [2021-04-28 14:40:24,718 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 447 selfloop transitions, 168 changer transitions 3/638 dead transitions. [2021-04-28 14:40:24,718 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 638 transitions, 11878 flow [2021-04-28 14:40:24,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 14:40:24,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 14:40:24,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1168 transitions. [2021-04-28 14:40:24,721 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5802285146547441 [2021-04-28 14:40:24,721 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1168 transitions. [2021-04-28 14:40:24,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1168 transitions. [2021-04-28 14:40:24,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:24,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1168 transitions. [2021-04-28 14:40:24,724 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 14:40:24,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 0 states have call successors, (0), 0 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 14:40:24,727 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 0 states have call successors, (0), 0 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 14:40:24,727 INFO L185 Difference]: Start difference. First operand has 146 places, 610 transitions, 10254 flow. Second operand 11 states and 1168 transitions. [2021-04-28 14:40:24,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 638 transitions, 11878 flow [2021-04-28 14:40:25,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 638 transitions, 11720 flow, removed 17 selfloop flow, removed 5 redundant places. [2021-04-28 14:40:25,153 INFO L241 Difference]: Finished difference. Result has 152 places, 611 transitions, 10638 flow [2021-04-28 14:40:25,153 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=10104, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=610, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10638, PETRI_PLACES=152, PETRI_TRANSITIONS=611} [2021-04-28 14:40:25,154 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 78 predicate places. [2021-04-28 14:40:25,154 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:25,154 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 611 transitions, 10638 flow [2021-04-28 14:40:25,154 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 611 transitions, 10638 flow [2021-04-28 14:40:25,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 152 places, 611 transitions, 10638 flow [2021-04-28 14:40:25,502 INFO L129 PetriNetUnfolder]: 1705/3358 cut-off events. [2021-04-28 14:40:25,502 INFO L130 PetriNetUnfolder]: For 18277/18289 co-relation queries the response was YES. [2021-04-28 14:40:25,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25673 conditions, 3358 events. 1705/3358 cut-off events. For 18277/18289 co-relation queries the response was YES. Maximal size of possible extension queue 507. Compared 27120 event pairs, 0 based on Foata normal form. 0/1022 useless extension candidates. Maximal degree in co-relation 25618. Up to 1656 conditions per place. [2021-04-28 14:40:25,543 INFO L146 LiptonReduction]: Number of co-enabled transitions 6806 [2021-04-28 14:40:25,637 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:25,637 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:25,637 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 483 [2021-04-28 14:40:25,638 INFO L480 AbstractCegarLoop]: Abstraction has has 152 places, 611 transitions, 10638 flow [2021-04-28 14:40:25,638 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 14:40:25,638 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:25,638 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:25,852 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-04-28 14:40:25,853 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:25,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:25,854 INFO L82 PathProgramCache]: Analyzing trace with hash -489002051, now seen corresponding path program 3 times [2021-04-28 14:40:25,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:25,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987853761] [2021-04-28 14:40:25,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:25,876 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:25,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,882 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:25,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:25,889 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:40:25,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:25,897 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:40:25,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:25,907 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:40:25,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:25,917 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:40:25,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,927 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 14:40:25,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987853761] [2021-04-28 14:40:25,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774818410] [2021-04-28 14:40:25,928 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 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 14:40:25,996 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-04-28 14:40:25,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:25,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:25,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:25,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:26,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:26,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:26,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:26,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:26,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:26,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:26,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:26,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:26,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:26,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:26,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:26,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:26,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:26,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:26,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:26,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:26,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:26,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:26,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:26,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:26,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:26,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:26,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:26,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:26,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:26,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:26,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:26,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:26,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:26,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:26,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:26,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:26,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:26,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:26,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:26,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:26,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:40:26,145 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-04-28 14:40:26,145 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:26,146 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:26,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:26,156 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 14:40:26,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:26,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-04-28 14:40:26,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451703917] [2021-04-28 14:40:26,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-28 14:40:26,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:26,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-28 14:40:26,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-04-28 14:40:26,159 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:26,160 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 611 transitions, 10638 flow. Second operand has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 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 14:40:26,160 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:26,160 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:26,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:27,036 INFO L129 PetriNetUnfolder]: 1757/3510 cut-off events. [2021-04-28 14:40:27,036 INFO L130 PetriNetUnfolder]: For 22360/22402 co-relation queries the response was YES. [2021-04-28 14:40:27,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29077 conditions, 3510 events. 1757/3510 cut-off events. For 22360/22402 co-relation queries the response was YES. Maximal size of possible extension queue 524. Compared 28531 event pairs, 0 based on Foata normal form. 26/1086 useless extension candidates. Maximal degree in co-relation 29020. Up to 2265 conditions per place. [2021-04-28 14:40:27,068 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 447 selfloop transitions, 201 changer transitions 0/668 dead transitions. [2021-04-28 14:40:27,069 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 668 transitions, 13008 flow [2021-04-28 14:40:27,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-28 14:40:27,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-04-28 14:40:27,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1381 transitions. [2021-04-28 14:40:27,071 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5804960067255149 [2021-04-28 14:40:27,071 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1381 transitions. [2021-04-28 14:40:27,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1381 transitions. [2021-04-28 14:40:27,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:27,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1381 transitions. [2021-04-28 14:40:27,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 106.23076923076923) internal successors, (1381), 13 states have internal predecessors, (1381), 0 states have call successors, (0), 0 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 14:40:27,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 183.0) internal successors, (2562), 14 states have internal predecessors, (2562), 0 states have call successors, (0), 0 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 14:40:27,077 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 183.0) internal successors, (2562), 14 states have internal predecessors, (2562), 0 states have call successors, (0), 0 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 14:40:27,078 INFO L185 Difference]: Start difference. First operand has 152 places, 611 transitions, 10638 flow. Second operand 13 states and 1381 transitions. [2021-04-28 14:40:27,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 668 transitions, 13008 flow [2021-04-28 14:40:27,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 668 transitions, 12663 flow, removed 18 selfloop flow, removed 10 redundant places. [2021-04-28 14:40:27,457 INFO L241 Difference]: Finished difference. Result has 157 places, 644 transitions, 11682 flow [2021-04-28 14:40:27,458 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=10329, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=611, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=172, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=11682, PETRI_PLACES=157, PETRI_TRANSITIONS=644} [2021-04-28 14:40:27,458 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 83 predicate places. [2021-04-28 14:40:27,458 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:27,458 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 644 transitions, 11682 flow [2021-04-28 14:40:27,459 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 644 transitions, 11682 flow [2021-04-28 14:40:27,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 157 places, 644 transitions, 11682 flow [2021-04-28 14:40:27,867 INFO L129 PetriNetUnfolder]: 1757/3478 cut-off events. [2021-04-28 14:40:27,867 INFO L130 PetriNetUnfolder]: For 18923/18935 co-relation queries the response was YES. [2021-04-28 14:40:27,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27034 conditions, 3478 events. 1757/3478 cut-off events. For 18923/18935 co-relation queries the response was YES. Maximal size of possible extension queue 518. Compared 28379 event pairs, 0 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 26977. Up to 1732 conditions per place. [2021-04-28 14:40:27,906 INFO L146 LiptonReduction]: Number of co-enabled transitions 7166 [2021-04-28 14:40:28,040 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:28,040 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:28,040 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 582 [2021-04-28 14:40:28,041 INFO L480 AbstractCegarLoop]: Abstraction has has 157 places, 644 transitions, 11682 flow [2021-04-28 14:40:28,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 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 14:40:28,041 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:28,041 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:28,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:28,242 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:28,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:28,243 INFO L82 PathProgramCache]: Analyzing trace with hash -685120444, now seen corresponding path program 1 times [2021-04-28 14:40:28,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:28,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946016785] [2021-04-28 14:40:28,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:28,298 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:28,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,307 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:40:28,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:28,316 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:40:28,317 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:40:28,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:28,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:28,357 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:40:28,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,370 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:28,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946016785] [2021-04-28 14:40:28,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173976956] [2021-04-28 14:40:28,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 14:40:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:28,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:28,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:28,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:28,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:28,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:28,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:28,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:28,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:28,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:28,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:28,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:28,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:28,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:28,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:28,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:28,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:28,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:28,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:28,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:28,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:28,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:28,486 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:40:28,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:28,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:28,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:28,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:28,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:28,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:28,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:28,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:28,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:28,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:28,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:28,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:28,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:28,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:28,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:28,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:28,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:28,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:28,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:28,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:28,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:28,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:28,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:28,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:28,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:28,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:28,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:28,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:28,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:28,587 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:28,588 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:28,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:28,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:28,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:28,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-04-28 14:40:28,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016332485] [2021-04-28 14:40:28,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-28 14:40:28,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:28,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-28 14:40:28,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-04-28 14:40:28,600 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:28,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 644 transitions, 11682 flow. Second operand has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 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 14:40:28,602 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:28,602 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:28,602 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:29,650 INFO L129 PetriNetUnfolder]: 1773/3562 cut-off events. [2021-04-28 14:40:29,650 INFO L130 PetriNetUnfolder]: For 21417/21449 co-relation queries the response was YES. [2021-04-28 14:40:29,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30098 conditions, 3562 events. 1773/3562 cut-off events. For 21417/21449 co-relation queries the response was YES. Maximal size of possible extension queue 540. Compared 29271 event pairs, 0 based on Foata normal form. 18/1090 useless extension candidates. Maximal degree in co-relation 30039. Up to 2423 conditions per place. [2021-04-28 14:40:29,692 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 525 selfloop transitions, 157 changer transitions 6/708 dead transitions. [2021-04-28 14:40:29,692 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 708 transitions, 13874 flow [2021-04-28 14:40:29,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-28 14:40:29,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-04-28 14:40:29,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1371 transitions. [2021-04-28 14:40:29,695 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5762925598991173 [2021-04-28 14:40:29,695 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1371 transitions. [2021-04-28 14:40:29,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1371 transitions. [2021-04-28 14:40:29,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:29,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1371 transitions. [2021-04-28 14:40:29,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 105.46153846153847) internal successors, (1371), 13 states have internal predecessors, (1371), 0 states have call successors, (0), 0 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 14:40:29,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 183.0) internal successors, (2562), 14 states have internal predecessors, (2562), 0 states have call successors, (0), 0 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 14:40:29,701 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 183.0) internal successors, (2562), 14 states have internal predecessors, (2562), 0 states have call successors, (0), 0 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 14:40:29,702 INFO L185 Difference]: Start difference. First operand has 157 places, 644 transitions, 11682 flow. Second operand 13 states and 1371 transitions. [2021-04-28 14:40:29,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 708 transitions, 13874 flow [2021-04-28 14:40:30,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 708 transitions, 13242 flow, removed 264 selfloop flow, removed 8 redundant places. [2021-04-28 14:40:30,144 INFO L241 Difference]: Finished difference. Result has 164 places, 654 transitions, 11693 flow [2021-04-28 14:40:30,145 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=11050, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=491, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=11693, PETRI_PLACES=164, PETRI_TRANSITIONS=654} [2021-04-28 14:40:30,145 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 90 predicate places. [2021-04-28 14:40:30,145 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:30,146 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 654 transitions, 11693 flow [2021-04-28 14:40:30,146 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 654 transitions, 11693 flow [2021-04-28 14:40:30,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 164 places, 654 transitions, 11693 flow [2021-04-28 14:40:30,511 INFO L129 PetriNetUnfolder]: 1749/3473 cut-off events. [2021-04-28 14:40:30,511 INFO L130 PetriNetUnfolder]: For 22360/22396 co-relation queries the response was YES. [2021-04-28 14:40:30,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27501 conditions, 3473 events. 1749/3473 cut-off events. For 22360/22396 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 28508 event pairs, 0 based on Foata normal form. 0/1057 useless extension candidates. Maximal degree in co-relation 27440. Up to 1660 conditions per place. [2021-04-28 14:40:30,555 INFO L146 LiptonReduction]: Number of co-enabled transitions 7270 [2021-04-28 14:40:30,656 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:30,656 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:30,656 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 511 [2021-04-28 14:40:30,657 INFO L480 AbstractCegarLoop]: Abstraction has has 164 places, 654 transitions, 11693 flow [2021-04-28 14:40:30,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 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 14:40:30,657 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:30,658 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:30,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-04-28 14:40:30,871 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:30,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:30,871 INFO L82 PathProgramCache]: Analyzing trace with hash -611601190, now seen corresponding path program 1 times [2021-04-28 14:40:30,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:30,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787314328] [2021-04-28 14:40:30,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:30,896 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:30,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,902 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:40:30,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:30,909 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-04-28 14:40:30,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:30,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:30,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:30,942 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:40:30,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,952 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:30,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787314328] [2021-04-28 14:40:30,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836159609] [2021-04-28 14:40:30,952 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 14:40:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:31,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:31,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:31,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:31,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:31,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:31,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:31,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:31,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:31,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:31,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:31,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:31,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:31,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:31,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:31,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:31,092 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 14 [2021-04-28 14:40:31,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:31,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:31,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:31,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [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 17 [2021-04-28 14:40:31,116 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-04-28 14:40:31,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:31,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:31,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:31,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:31,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [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 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:31,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:31,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [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 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:31,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:31,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:31,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:31,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:31,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:31,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:31,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:31,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:31,169 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:31,170 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:31,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:31,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:31,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:31,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-04-28 14:40:31,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096216439] [2021-04-28 14:40:31,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-28 14:40:31,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:31,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-28 14:40:31,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-04-28 14:40:31,189 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:31,190 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 654 transitions, 11693 flow. Second operand has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 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 14:40:31,190 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:31,190 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:31,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:32,319 INFO L129 PetriNetUnfolder]: 1813/3631 cut-off events. [2021-04-28 14:40:32,320 INFO L130 PetriNetUnfolder]: For 24201/24255 co-relation queries the response was YES. [2021-04-28 14:40:32,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31239 conditions, 3631 events. 1813/3631 cut-off events. For 24201/24255 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 29746 event pairs, 0 based on Foata normal form. 22/1117 useless extension candidates. Maximal degree in co-relation 31176. Up to 2249 conditions per place. [2021-04-28 14:40:32,353 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 435 selfloop transitions, 257 changer transitions 6/718 dead transitions. [2021-04-28 14:40:32,353 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 718 transitions, 14013 flow [2021-04-28 14:40:32,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-04-28 14:40:32,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-04-28 14:40:32,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1691 transitions. [2021-04-28 14:40:32,356 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5775273224043715 [2021-04-28 14:40:32,356 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1691 transitions. [2021-04-28 14:40:32,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1691 transitions. [2021-04-28 14:40:32,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:32,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1691 transitions. [2021-04-28 14:40:32,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 105.6875) internal successors, (1691), 16 states have internal predecessors, (1691), 0 states have call successors, (0), 0 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 14:40:32,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 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 14:40:32,363 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 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 14:40:32,363 INFO L185 Difference]: Start difference. First operand has 164 places, 654 transitions, 11693 flow. Second operand 16 states and 1691 transitions. [2021-04-28 14:40:32,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 718 transitions, 14013 flow [2021-04-28 14:40:32,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 718 transitions, 13822 flow, removed 19 selfloop flow, removed 6 redundant places. [2021-04-28 14:40:32,659 INFO L241 Difference]: Finished difference. Result has 176 places, 672 transitions, 12638 flow [2021-04-28 14:40:32,659 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=11502, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=654, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=236, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=12638, PETRI_PLACES=176, PETRI_TRANSITIONS=672} [2021-04-28 14:40:32,660 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 102 predicate places. [2021-04-28 14:40:32,660 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:32,660 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 176 places, 672 transitions, 12638 flow [2021-04-28 14:40:32,660 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 176 places, 672 transitions, 12638 flow [2021-04-28 14:40:32,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 176 places, 672 transitions, 12638 flow [2021-04-28 14:40:33,049 INFO L129 PetriNetUnfolder]: 1789/3603 cut-off events. [2021-04-28 14:40:33,050 INFO L130 PetriNetUnfolder]: For 24096/24120 co-relation queries the response was YES. [2021-04-28 14:40:33,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29335 conditions, 3603 events. 1789/3603 cut-off events. For 24096/24120 co-relation queries the response was YES. Maximal size of possible extension queue 599. Compared 30406 event pairs, 0 based on Foata normal form. 0/1095 useless extension candidates. Maximal degree in co-relation 29271. Up to 1700 conditions per place. [2021-04-28 14:40:33,096 INFO L146 LiptonReduction]: Number of co-enabled transitions 7430 [2021-04-28 14:40:33,242 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:33,242 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:33,242 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 582 [2021-04-28 14:40:33,243 INFO L480 AbstractCegarLoop]: Abstraction has has 176 places, 672 transitions, 12638 flow [2021-04-28 14:40:33,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 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 14:40:33,243 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:33,243 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:33,456 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:33,457 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:33,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:33,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1342271426, now seen corresponding path program 1 times [2021-04-28 14:40:33,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:33,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862084729] [2021-04-28 14:40:33,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:33,487 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:33,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,493 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:40:33,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,501 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:40:33,501 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:40:33,519 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:40:33,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,529 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:40:33,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,540 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:40:33,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,549 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:33,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862084729] [2021-04-28 14:40:33,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264178116] [2021-04-28 14:40:33,550 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 14:40:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:33,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:33,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:33,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:33,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:33,707 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:40:33,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:33,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:33,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:33,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:33,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:33,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:33,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:33,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:33,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:33,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:33,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:33,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:33,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:33,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:33,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,831 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:33,832 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:33,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:33,842 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:33,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:33,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-04-28 14:40:33,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013268034] [2021-04-28 14:40:33,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-28 14:40:33,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:33,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-28 14:40:33,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-04-28 14:40:33,846 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:33,848 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 672 transitions, 12638 flow. Second operand has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 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 14:40:33,848 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:33,848 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:33,848 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:34,753 INFO L129 PetriNetUnfolder]: 1805/3652 cut-off events. [2021-04-28 14:40:34,754 INFO L130 PetriNetUnfolder]: For 25134/25188 co-relation queries the response was YES. [2021-04-28 14:40:34,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32448 conditions, 3652 events. 1805/3652 cut-off events. For 25134/25188 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 30325 event pairs, 0 based on Foata normal form. 22/1127 useless extension candidates. Maximal degree in co-relation 32382. Up to 2517 conditions per place. [2021-04-28 14:40:34,789 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 582 selfloop transitions, 108 changer transitions 6/716 dead transitions. [2021-04-28 14:40:34,789 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 716 transitions, 14630 flow [2021-04-28 14:40:34,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 14:40:34,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 14:40:34,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 952 transitions. [2021-04-28 14:40:34,791 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5780206435944141 [2021-04-28 14:40:34,791 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 952 transitions. [2021-04-28 14:40:34,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 952 transitions. [2021-04-28 14:40:34,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:34,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 952 transitions. [2021-04-28 14:40:34,794 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 14:40:34,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 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 14:40:34,796 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 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 14:40:34,796 INFO L185 Difference]: Start difference. First operand has 176 places, 672 transitions, 12638 flow. Second operand 9 states and 952 transitions. [2021-04-28 14:40:34,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 716 transitions, 14630 flow [2021-04-28 14:40:35,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 716 transitions, 14161 flow, removed 48 selfloop flow, removed 15 redundant places. [2021-04-28 14:40:35,167 INFO L241 Difference]: Finished difference. Result has 171 places, 674 transitions, 12413 flow [2021-04-28 14:40:35,167 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=12177, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=12413, PETRI_PLACES=171, PETRI_TRANSITIONS=674} [2021-04-28 14:40:35,167 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 97 predicate places. [2021-04-28 14:40:35,168 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:35,168 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 171 places, 674 transitions, 12413 flow [2021-04-28 14:40:35,168 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 171 places, 674 transitions, 12413 flow [2021-04-28 14:40:35,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 171 places, 674 transitions, 12413 flow [2021-04-28 14:40:35,556 INFO L129 PetriNetUnfolder]: 1781/3593 cut-off events. [2021-04-28 14:40:35,556 INFO L130 PetriNetUnfolder]: For 25571/25595 co-relation queries the response was YES. [2021-04-28 14:40:35,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28780 conditions, 3593 events. 1781/3593 cut-off events. For 25571/25595 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 30251 event pairs, 0 based on Foata normal form. 0/1099 useless extension candidates. Maximal degree in co-relation 28717. Up to 1700 conditions per place. [2021-04-28 14:40:35,602 INFO L146 LiptonReduction]: Number of co-enabled transitions 7478 [2021-04-28 14:40:35,802 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:35,802 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:35,802 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 634 [2021-04-28 14:40:35,803 INFO L480 AbstractCegarLoop]: Abstraction has has 171 places, 674 transitions, 12413 flow [2021-04-28 14:40:35,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 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 14:40:35,803 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:35,803 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:36,003 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-04-28 14:40:36,004 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:36,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:36,005 INFO L82 PathProgramCache]: Analyzing trace with hash -715340086, now seen corresponding path program 1 times [2021-04-28 14:40:36,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:36,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462826802] [2021-04-28 14:40:36,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:36,029 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:36,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,035 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:40:36,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:36,042 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:40:36,043 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:40:36,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:36,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:36,080 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:36,080 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:36,095 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 14:40:36,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462826802] [2021-04-28 14:40:36,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457119387] [2021-04-28 14:40:36,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 14:40:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:36,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:36,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:36,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:36,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:36,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:36,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:36,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:36,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:36,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:36,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:36,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:36,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:36,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:36,218 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:40:36,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:36,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:36,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:36,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:36,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:36,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:36,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:36,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:36,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:36,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:36,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:36,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:36,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:36,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:36,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:36,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:36,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:36,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:36,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:36,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:36,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:36,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:36,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:36,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:36,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:36,301 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:36,302 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:36,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:36,320 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 14:40:36,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:36,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:40:36,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832203381] [2021-04-28 14:40:36,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:40:36,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:36,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:40:36,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:40:36,324 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:36,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 674 transitions, 12413 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 14:40:36,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:36,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:36,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:37,434 INFO L129 PetriNetUnfolder]: 1813/3688 cut-off events. [2021-04-28 14:40:37,434 INFO L130 PetriNetUnfolder]: For 29184/29238 co-relation queries the response was YES. [2021-04-28 14:40:37,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32215 conditions, 3688 events. 1813/3688 cut-off events. For 29184/29238 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 30810 event pairs, 0 based on Foata normal form. 22/1141 useless extension candidates. Maximal degree in co-relation 32150. Up to 2459 conditions per place. [2021-04-28 14:40:37,470 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 543 selfloop transitions, 169 changer transitions 6/738 dead transitions. [2021-04-28 14:40:37,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 738 transitions, 14745 flow [2021-04-28 14:40:37,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-28 14:40:37,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-04-28 14:40:37,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1264 transitions. [2021-04-28 14:40:37,472 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.575591985428051 [2021-04-28 14:40:37,472 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1264 transitions. [2021-04-28 14:40:37,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1264 transitions. [2021-04-28 14:40:37,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:37,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1264 transitions. [2021-04-28 14:40:37,475 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 14:40:37,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 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 14:40:37,478 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 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 14:40:37,478 INFO L185 Difference]: Start difference. First operand has 171 places, 674 transitions, 12413 flow. Second operand 12 states and 1264 transitions. [2021-04-28 14:40:37,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 738 transitions, 14745 flow [2021-04-28 14:40:37,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 738 transitions, 14612 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-04-28 14:40:37,840 INFO L241 Difference]: Finished difference. Result has 178 places, 680 transitions, 12893 flow [2021-04-28 14:40:37,840 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=12280, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=505, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12893, PETRI_PLACES=178, PETRI_TRANSITIONS=680} [2021-04-28 14:40:37,841 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 104 predicate places. [2021-04-28 14:40:37,841 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:37,841 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 178 places, 680 transitions, 12893 flow [2021-04-28 14:40:37,841 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 178 places, 680 transitions, 12893 flow [2021-04-28 14:40:37,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 178 places, 680 transitions, 12893 flow [2021-04-28 14:40:38,281 INFO L129 PetriNetUnfolder]: 1789/3649 cut-off events. [2021-04-28 14:40:38,281 INFO L130 PetriNetUnfolder]: For 27265/27289 co-relation queries the response was YES. [2021-04-28 14:40:38,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29730 conditions, 3649 events. 1789/3649 cut-off events. For 27265/27289 co-relation queries the response was YES. Maximal size of possible extension queue 581. Compared 31192 event pairs, 0 based on Foata normal form. 0/1117 useless extension candidates. Maximal degree in co-relation 29665. Up to 1716 conditions per place. [2021-04-28 14:40:38,326 INFO L146 LiptonReduction]: Number of co-enabled transitions 7534 [2021-04-28 14:40:38,439 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:38,439 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:38,439 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 598 [2021-04-28 14:40:38,440 INFO L480 AbstractCegarLoop]: Abstraction has has 178 places, 680 transitions, 12893 flow [2021-04-28 14:40:38,440 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 14:40:38,440 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:38,440 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:38,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-04-28 14:40:38,641 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:38,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:38,642 INFO L82 PathProgramCache]: Analyzing trace with hash -83013334, now seen corresponding path program 3 times [2021-04-28 14:40:38,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:38,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247011044] [2021-04-28 14:40:38,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:38,669 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:38,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,675 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:40:38,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,682 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-04-28 14:40:38,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:38,690 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-04-28 14:40:38,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,702 INFO L142 QuantifierPusher]: treesize reduction 8, result has 57.9 percent of original size [2021-04-28 14:40:38,703 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:38,722 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:38,723 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:38,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:38,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247011044] [2021-04-28 14:40:38,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180674169] [2021-04-28 14:40:38,739 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:38,801 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-04-28 14:40:38,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:38,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:38,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:38,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:38,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:38,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:38,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:38,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:38,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:38,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:38,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:38,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:38,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:38,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:38,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:38,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:38,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:38,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:38,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:38,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:38,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:38,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:38,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:38,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:38,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:38,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:38,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:38,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:38,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:38,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:38,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:38,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:38,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:40:38,922 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-04-28 14:40:38,923 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:38,923 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:38,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:38,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:38,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:38,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:40:38,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043144583] [2021-04-28 14:40:38,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:40:38,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:38,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:40:38,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:40:38,939 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:38,940 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 680 transitions, 12893 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 14:40:38,940 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:38,940 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:38,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:40,744 INFO L129 PetriNetUnfolder]: 2189/4515 cut-off events. [2021-04-28 14:40:40,744 INFO L130 PetriNetUnfolder]: For 59135/59189 co-relation queries the response was YES. [2021-04-28 14:40:40,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40520 conditions, 4515 events. 2189/4515 cut-off events. For 59135/59189 co-relation queries the response was YES. Maximal size of possible extension queue 657. Compared 39566 event pairs, 0 based on Foata normal form. 86/1450 useless extension candidates. Maximal degree in co-relation 40453. Up to 2288 conditions per place. [2021-04-28 14:40:40,784 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 187 selfloop transitions, 617 changer transitions 15/839 dead transitions. [2021-04-28 14:40:40,784 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 839 transitions, 17974 flow [2021-04-28 14:40:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-04-28 14:40:40,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-04-28 14:40:40,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2451 transitions. [2021-04-28 14:40:40,788 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5823235923022095 [2021-04-28 14:40:40,788 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2451 transitions. [2021-04-28 14:40:40,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2451 transitions. [2021-04-28 14:40:40,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:40,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2451 transitions. [2021-04-28 14:40:40,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 106.56521739130434) internal successors, (2451), 23 states have internal predecessors, (2451), 0 states have call successors, (0), 0 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 14:40:40,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 183.0) internal successors, (4392), 24 states have internal predecessors, (4392), 0 states have call successors, (0), 0 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 14:40:40,797 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 183.0) internal successors, (4392), 24 states have internal predecessors, (4392), 0 states have call successors, (0), 0 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 14:40:40,797 INFO L185 Difference]: Start difference. First operand has 178 places, 680 transitions, 12893 flow. Second operand 23 states and 2451 transitions. [2021-04-28 14:40:40,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 839 transitions, 17974 flow [2021-04-28 14:40:41,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 839 transitions, 17729 flow, removed 15 selfloop flow, removed 9 redundant places. [2021-04-28 14:40:41,427 INFO L241 Difference]: Finished difference. Result has 196 places, 808 transitions, 17409 flow [2021-04-28 14:40:41,427 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=12664, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=680, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=503, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=17409, PETRI_PLACES=196, PETRI_TRANSITIONS=808} [2021-04-28 14:40:41,428 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 122 predicate places. [2021-04-28 14:40:41,428 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:41,428 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 808 transitions, 17409 flow [2021-04-28 14:40:41,428 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 196 places, 808 transitions, 17409 flow [2021-04-28 14:40:41,440 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 196 places, 808 transitions, 17409 flow [2021-04-28 14:40:42,152 INFO L129 PetriNetUnfolder]: 2129/4501 cut-off events. [2021-04-28 14:40:42,153 INFO L130 PetriNetUnfolder]: For 36111/36135 co-relation queries the response was YES. [2021-04-28 14:40:42,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40252 conditions, 4501 events. 2129/4501 cut-off events. For 36111/36135 co-relation queries the response was YES. Maximal size of possible extension queue 711. Compared 41134 event pairs, 0 based on Foata normal form. 0/1375 useless extension candidates. Maximal degree in co-relation 40182. Up to 2228 conditions per place. [2021-04-28 14:40:42,256 INFO L146 LiptonReduction]: Number of co-enabled transitions 8740 [2021-04-28 14:40:42,544 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:42,544 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:42,544 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1116 [2021-04-28 14:40:42,545 INFO L480 AbstractCegarLoop]: Abstraction has has 196 places, 808 transitions, 17409 flow [2021-04-28 14:40:42,545 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 14:40:42,545 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:42,545 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:42,759 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-04-28 14:40:42,760 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:42,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:42,761 INFO L82 PathProgramCache]: Analyzing trace with hash -28159736, now seen corresponding path program 2 times [2021-04-28 14:40:42,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:42,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129995482] [2021-04-28 14:40:42,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:42,785 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:42,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:42,791 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:42,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:42,799 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:40:42,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,807 INFO L142 QuantifierPusher]: treesize reduction 13, result has 45.8 percent of original size [2021-04-28 14:40:42,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,817 INFO L142 QuantifierPusher]: treesize reduction 8, result has 57.9 percent of original size [2021-04-28 14:40:42,817 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:42,832 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:42,833 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:42,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:42,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129995482] [2021-04-28 14:40:42,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970397336] [2021-04-28 14:40:42,847 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 14:40:42,923 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:40:42,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:42,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-28 14:40:42,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:42,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:42,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:42,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:42,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:42,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:42,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:42,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:42,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:42,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:42,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:42,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:42,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:42,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:42,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:42,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:42,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:42,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:42,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:42,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:42,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:42,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:42,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:42,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:42,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:42,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:42,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:42,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:42,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:42,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:42,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:42,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:42,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,971 INFO L147 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size 15 [2021-04-28 14:40:42,972 INFO L142 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size [2021-04-28 14:40:42,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:42,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:42,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:42,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-28 14:40:42,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:42,990 INFO L142 QuantifierPusher]: treesize reduction 13, result has 35.0 percent of original size [2021-04-28 14:40:42,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:42,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:42,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:43,003 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:43,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:43,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-04-28 14:40:43,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574767274] [2021-04-28 14:40:43,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-28 14:40:43,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:43,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-28 14:40:43,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-04-28 14:40:43,006 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:43,006 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 808 transitions, 17409 flow. Second operand has 11 states, 11 states have (on average 100.0909090909091) internal successors, (1101), 11 states have internal predecessors, (1101), 0 states have call successors, (0), 0 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 14:40:43,006 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:43,006 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:43,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:44,775 INFO L129 PetriNetUnfolder]: 2545/5418 cut-off events. [2021-04-28 14:40:44,776 INFO L130 PetriNetUnfolder]: For 74368/74422 co-relation queries the response was YES. [2021-04-28 14:40:44,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53025 conditions, 5418 events. 2545/5418 cut-off events. For 74368/74422 co-relation queries the response was YES. Maximal size of possible extension queue 795. Compared 50222 event pairs, 0 based on Foata normal form. 86/1734 useless extension candidates. Maximal degree in co-relation 52953. Up to 2852 conditions per place. [2021-04-28 14:40:44,834 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 394 selfloop transitions, 554 changer transitions 12/980 dead transitions. [2021-04-28 14:40:44,835 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 980 transitions, 23646 flow [2021-04-28 14:40:44,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-04-28 14:40:44,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-04-28 14:40:44,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1816 transitions. [2021-04-28 14:40:44,838 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5837351333976214 [2021-04-28 14:40:44,838 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1816 transitions. [2021-04-28 14:40:44,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1816 transitions. [2021-04-28 14:40:44,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:44,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1816 transitions. [2021-04-28 14:40:44,841 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 14:40:44,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 0 states have call successors, (0), 0 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 14:40:44,845 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 0 states have call successors, (0), 0 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 14:40:44,845 INFO L185 Difference]: Start difference. First operand has 196 places, 808 transitions, 17409 flow. Second operand 17 states and 1816 transitions. [2021-04-28 14:40:44,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 980 transitions, 23646 flow [2021-04-28 14:40:46,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 980 transitions, 21476 flow, removed 944 selfloop flow, removed 16 redundant places. [2021-04-28 14:40:47,005 INFO L241 Difference]: Finished difference. Result has 202 places, 940 transitions, 20817 flow [2021-04-28 14:40:47,006 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=15821, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=808, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=433, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=20817, PETRI_PLACES=202, PETRI_TRANSITIONS=940} [2021-04-28 14:40:47,007 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 128 predicate places. [2021-04-28 14:40:47,007 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:47,007 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 202 places, 940 transitions, 20817 flow [2021-04-28 14:40:47,007 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 202 places, 940 transitions, 20817 flow [2021-04-28 14:40:47,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 202 places, 940 transitions, 20817 flow [2021-04-28 14:40:47,913 INFO L129 PetriNetUnfolder]: 2497/5343 cut-off events. [2021-04-28 14:40:47,913 INFO L130 PetriNetUnfolder]: For 43413/43449 co-relation queries the response was YES. [2021-04-28 14:40:47,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48243 conditions, 5343 events. 2497/5343 cut-off events. For 43413/43449 co-relation queries the response was YES. Maximal size of possible extension queue 836. Compared 50774 event pairs, 0 based on Foata normal form. 0/1640 useless extension candidates. Maximal degree in co-relation 48170. Up to 2528 conditions per place. [2021-04-28 14:40:48,183 INFO L146 LiptonReduction]: Number of co-enabled transitions 10004 [2021-04-28 14:40:48,491 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:48,491 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:48,491 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1484 [2021-04-28 14:40:48,492 INFO L480 AbstractCegarLoop]: Abstraction has has 202 places, 940 transitions, 20817 flow [2021-04-28 14:40:48,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 100.0909090909091) internal successors, (1101), 11 states have internal predecessors, (1101), 0 states have call successors, (0), 0 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 14:40:48,493 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:48,493 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:48,697 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:48,698 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:48,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:48,698 INFO L82 PathProgramCache]: Analyzing trace with hash -761413018, now seen corresponding path program 1 times [2021-04-28 14:40:48,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:48,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509946336] [2021-04-28 14:40:48,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:48,725 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:48,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,732 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:48,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,741 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-04-28 14:40:48,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:48,751 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-04-28 14:40:48,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,762 INFO L142 QuantifierPusher]: treesize reduction 8, result has 57.9 percent of original size [2021-04-28 14:40:48,763 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:48,779 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:48,780 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:48,794 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:48,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509946336] [2021-04-28 14:40:48,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320546514] [2021-04-28 14:40:48,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:48,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:48,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:48,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:48,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:48,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:48,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:48,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,931 WARN L159 QuantifierPusher]: Ignoring assumption. [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 14 [2021-04-28 14:40:48,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:48,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:48,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:48,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:48,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,952 WARN L159 QuantifierPusher]: Ignoring assumption. [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 14 [2021-04-28 14:40:48,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:48,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,955 WARN L159 QuantifierPusher]: Ignoring assumption. [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 14 [2021-04-28 14:40:48,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [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 9 [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 9 [2021-04-28 14:40:48,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,976 WARN L159 QuantifierPusher]: Ignoring assumption. [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 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:48,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:48,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:48,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:48,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [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 11 [2021-04-28 14:40:48,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:49,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:49,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:49,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:49,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:49,004 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-04-28 14:40:49,005 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-28 14:40:49,006 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:49,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:49,007 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 13 [2021-04-28 14:40:49,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [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 17 [2021-04-28 14:40:49,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:49,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:49,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:40:49,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199454611] [2021-04-28 14:40:49,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:40:49,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:49,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:40:49,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:40:49,033 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:49,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 940 transitions, 20817 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 14:40:49,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:49,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:49,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:51,724 INFO L129 PetriNetUnfolder]: 2785/6040 cut-off events. [2021-04-28 14:40:51,724 INFO L130 PetriNetUnfolder]: For 94452/94506 co-relation queries the response was YES. [2021-04-28 14:40:51,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59652 conditions, 6040 events. 2785/6040 cut-off events. For 94452/94506 co-relation queries the response was YES. Maximal size of possible extension queue 905. Compared 57585 event pairs, 0 based on Foata normal form. 86/1924 useless extension candidates. Maximal degree in co-relation 59577. Up to 2984 conditions per place. [2021-04-28 14:40:51,781 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 263 selfloop transitions, 758 changer transitions 21/1062 dead transitions. [2021-04-28 14:40:51,781 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 1062 transitions, 26105 flow [2021-04-28 14:40:51,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-04-28 14:40:51,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-04-28 14:40:51,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2452 transitions. [2021-04-28 14:40:51,784 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5825611784271798 [2021-04-28 14:40:51,784 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2452 transitions. [2021-04-28 14:40:51,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2452 transitions. [2021-04-28 14:40:51,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:51,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2452 transitions. [2021-04-28 14:40:51,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 106.6086956521739) internal successors, (2452), 23 states have internal predecessors, (2452), 0 states have call successors, (0), 0 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 14:40:51,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 183.0) internal successors, (4392), 24 states have internal predecessors, (4392), 0 states have call successors, (0), 0 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 14:40:51,792 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 183.0) internal successors, (4392), 24 states have internal predecessors, (4392), 0 states have call successors, (0), 0 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 14:40:51,792 INFO L185 Difference]: Start difference. First operand has 202 places, 940 transitions, 20817 flow. Second operand 23 states and 2452 transitions. [2021-04-28 14:40:51,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 1062 transitions, 26105 flow [2021-04-28 14:40:53,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 1062 transitions, 24735 flow, removed 609 selfloop flow, removed 9 redundant places. [2021-04-28 14:40:53,376 INFO L241 Difference]: Finished difference. Result has 220 places, 1021 transitions, 24015 flow [2021-04-28 14:40:53,376 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=19479, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=940, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=688, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=24015, PETRI_PLACES=220, PETRI_TRANSITIONS=1021} [2021-04-28 14:40:53,376 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 146 predicate places. [2021-04-28 14:40:53,376 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:53,377 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 220 places, 1021 transitions, 24015 flow [2021-04-28 14:40:53,377 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 220 places, 1021 transitions, 24015 flow [2021-04-28 14:40:53,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 220 places, 1021 transitions, 24015 flow [2021-04-28 14:40:54,311 INFO L129 PetriNetUnfolder]: 2701/5924 cut-off events. [2021-04-28 14:40:54,312 INFO L130 PetriNetUnfolder]: For 49802/49826 co-relation queries the response was YES. [2021-04-28 14:40:54,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56570 conditions, 5924 events. 2701/5924 cut-off events. For 49802/49826 co-relation queries the response was YES. Maximal size of possible extension queue 950. Compared 58697 event pairs, 0 based on Foata normal form. 0/1831 useless extension candidates. Maximal degree in co-relation 56492. Up to 2912 conditions per place. [2021-04-28 14:40:54,529 INFO L146 LiptonReduction]: Number of co-enabled transitions 10776 [2021-04-28 14:40:54,863 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:54,863 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:54,863 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1487 [2021-04-28 14:40:54,864 INFO L480 AbstractCegarLoop]: Abstraction has has 220 places, 1021 transitions, 24015 flow [2021-04-28 14:40:54,864 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 14:40:54,864 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:54,864 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:55,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:55,070 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:55,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:55,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1131070216, now seen corresponding path program 2 times [2021-04-28 14:40:55,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:55,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694401980] [2021-04-28 14:40:55,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:55,097 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:55,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,105 INFO L142 QuantifierPusher]: treesize reduction 16, result has 38.5 percent of original size [2021-04-28 14:40:55,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:55,114 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-04-28 14:40:55,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:55,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:55,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:55,143 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:40:55,144 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:55,159 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:55,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694401980] [2021-04-28 14:40:55,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227310988] [2021-04-28 14:40:55,160 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:55,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:40:55,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:55,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:55,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:55,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:55,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:55,256 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-04-28 14:40:55,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:55,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:55,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:55,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:55,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:55,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:55,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:55,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:55,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:55,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:55,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:55,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:55,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:55,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:55,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:55,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:55,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:55,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:55,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:55,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:55,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:55,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:55,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:55,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:55,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:55,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:55,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:55,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:55,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:55,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:55,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:55,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:55,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:55,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:55,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:55,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:55,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:55,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:55,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:55,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:55,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:55,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:55,367 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:55,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:55,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:40:55,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396439926] [2021-04-28 14:40:55,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:40:55,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:55,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:40:55,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:40:55,371 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:55,372 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 1021 transitions, 24015 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 14:40:55,372 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:55,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:55,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:57,518 INFO L129 PetriNetUnfolder]: 2821/6200 cut-off events. [2021-04-28 14:40:57,519 INFO L130 PetriNetUnfolder]: For 58410/58464 co-relation queries the response was YES. [2021-04-28 14:40:57,554 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63738 conditions, 6200 events. 2821/6200 cut-off events. For 58410/58464 co-relation queries the response was YES. Maximal size of possible extension queue 951. Compared 60390 event pairs, 0 based on Foata normal form. 22/1923 useless extension candidates. Maximal degree in co-relation 63658. Up to 4254 conditions per place. [2021-04-28 14:40:57,732 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 979 selfloop transitions, 149 changer transitions 3/1151 dead transitions. [2021-04-28 14:40:57,732 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 1151 transitions, 29011 flow [2021-04-28 14:40:57,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-28 14:40:57,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-04-28 14:40:57,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1052 transitions. [2021-04-28 14:40:57,734 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5748633879781421 [2021-04-28 14:40:57,734 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1052 transitions. [2021-04-28 14:40:57,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1052 transitions. [2021-04-28 14:40:57,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:57,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1052 transitions. [2021-04-28 14:40:57,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 105.2) internal successors, (1052), 10 states have internal predecessors, (1052), 0 states have call successors, (0), 0 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 14:40:57,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 0 states have call successors, (0), 0 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 14:40:57,737 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 0 states have call successors, (0), 0 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 14:40:57,737 INFO L185 Difference]: Start difference. First operand has 220 places, 1021 transitions, 24015 flow. Second operand 10 states and 1052 transitions. [2021-04-28 14:40:57,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 1151 transitions, 29011 flow [2021-04-28 14:40:59,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 1151 transitions, 27107 flow, removed 750 selfloop flow, removed 14 redundant places. [2021-04-28 14:40:59,212 INFO L241 Difference]: Finished difference. Result has 218 places, 1060 transitions, 23895 flow [2021-04-28 14:40:59,214 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=22337, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1021, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=872, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=23895, PETRI_PLACES=218, PETRI_TRANSITIONS=1060} [2021-04-28 14:40:59,214 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 144 predicate places. [2021-04-28 14:40:59,214 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:59,214 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 218 places, 1060 transitions, 23895 flow [2021-04-28 14:40:59,214 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 218 places, 1060 transitions, 23895 flow [2021-04-28 14:40:59,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 218 places, 1060 transitions, 23895 flow [2021-04-28 14:41:00,171 INFO L129 PetriNetUnfolder]: 2809/6193 cut-off events. [2021-04-28 14:41:00,171 INFO L130 PetriNetUnfolder]: For 49864/49876 co-relation queries the response was YES. [2021-04-28 14:41:00,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56238 conditions, 6193 events. 2809/6193 cut-off events. For 49864/49876 co-relation queries the response was YES. Maximal size of possible extension queue 982. Compared 61695 event pairs, 0 based on Foata normal form. 0/1901 useless extension candidates. Maximal degree in co-relation 56158. Up to 3000 conditions per place. [2021-04-28 14:41:00,266 INFO L146 LiptonReduction]: Number of co-enabled transitions 11136 [2021-04-28 14:41:00,687 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:00,687 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:00,687 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1473 [2021-04-28 14:41:00,688 INFO L480 AbstractCegarLoop]: Abstraction has has 218 places, 1060 transitions, 23895 flow [2021-04-28 14:41:00,688 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 14:41:00,688 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:00,688 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:00,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:00,893 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:00,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:00,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1180472839, now seen corresponding path program 1 times [2021-04-28 14:41:00,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:00,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800047961] [2021-04-28 14:41:00,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:00,921 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:00,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:00,928 INFO L142 QuantifierPusher]: treesize reduction 16, result has 38.5 percent of original size [2021-04-28 14:41:00,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:00,937 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-04-28 14:41:00,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:00,948 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:41:00,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:00,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:00,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:00,976 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:41:00,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:00,990 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:00,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800047961] [2021-04-28 14:41:00,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898526829] [2021-04-28 14:41:00,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:01,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:41:01,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:01,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:01,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:01,090 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-04-28 14:41:01,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:01,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:01,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:01,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:01,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:01,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:01,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:01,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:01,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:01,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:01,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:01,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:01,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:01,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:01,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:01,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:01,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:01,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:01,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:01,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:01,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:01,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:01,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,175 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-04-28 14:41:01,176 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-04-28 14:41:01,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:41:01,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:41:01,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 14:41:01,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:41:01,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 14:41:01,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,210 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:01,211 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:01,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:01,221 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:01,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:01,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-04-28 14:41:01,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179502179] [2021-04-28 14:41:01,222 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-28 14:41:01,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:01,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-28 14:41:01,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-04-28 14:41:01,226 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:41:01,227 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 1060 transitions, 23895 flow. Second operand has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 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 14:41:01,227 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:01,228 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:41:01,228 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:03,607 INFO L129 PetriNetUnfolder]: 2825/6218 cut-off events. [2021-04-28 14:41:03,607 INFO L130 PetriNetUnfolder]: For 56748/56790 co-relation queries the response was YES. [2021-04-28 14:41:03,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61203 conditions, 6218 events. 2825/6218 cut-off events. For 56748/56790 co-relation queries the response was YES. Maximal size of possible extension queue 951. Compared 60643 event pairs, 0 based on Foata normal form. 22/1930 useless extension candidates. Maximal degree in co-relation 61121. Up to 4306 conditions per place. [2021-04-28 14:41:03,695 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1001 selfloop transitions, 108 changer transitions 3/1132 dead transitions. [2021-04-28 14:41:03,696 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 1132 transitions, 27287 flow [2021-04-28 14:41:03,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 14:41:03,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 14:41:03,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 948 transitions. [2021-04-28 14:41:03,697 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.575591985428051 [2021-04-28 14:41:03,698 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 948 transitions. [2021-04-28 14:41:03,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 948 transitions. [2021-04-28 14:41:03,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:03,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 948 transitions. [2021-04-28 14:41:03,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 105.33333333333333) internal successors, (948), 9 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:03,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 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 14:41:03,700 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 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 14:41:03,700 INFO L185 Difference]: Start difference. First operand has 218 places, 1060 transitions, 23895 flow. Second operand 9 states and 948 transitions. [2021-04-28 14:41:03,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 1132 transitions, 27287 flow [2021-04-28 14:41:04,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 1132 transitions, 27109 flow, removed 17 selfloop flow, removed 6 redundant places. [2021-04-28 14:41:04,874 INFO L241 Difference]: Finished difference. Result has 222 places, 1065 transitions, 24169 flow [2021-04-28 14:41:04,875 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=23717, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1060, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=952, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=24169, PETRI_PLACES=222, PETRI_TRANSITIONS=1065} [2021-04-28 14:41:04,875 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 148 predicate places. [2021-04-28 14:41:04,875 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:04,875 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 222 places, 1065 transitions, 24169 flow [2021-04-28 14:41:04,875 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 222 places, 1065 transitions, 24169 flow [2021-04-28 14:41:04,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 222 places, 1065 transitions, 24169 flow [2021-04-28 14:41:05,944 INFO L129 PetriNetUnfolder]: 2813/6221 cut-off events. [2021-04-28 14:41:05,945 INFO L130 PetriNetUnfolder]: For 52416/52434 co-relation queries the response was YES. [2021-04-28 14:41:05,977 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56642 conditions, 6221 events. 2813/6221 cut-off events. For 52416/52434 co-relation queries the response was YES. Maximal size of possible extension queue 1066. Compared 61923 event pairs, 0 based on Foata normal form. 0/1908 useless extension candidates. Maximal degree in co-relation 56560. Up to 2992 conditions per place. [2021-04-28 14:41:06,031 INFO L146 LiptonReduction]: Number of co-enabled transitions 11184 [2021-04-28 14:41:06,349 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:06,349 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:06,349 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1474 [2021-04-28 14:41:06,350 INFO L480 AbstractCegarLoop]: Abstraction has has 222 places, 1065 transitions, 24169 flow [2021-04-28 14:41:06,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 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 14:41:06,350 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:06,350 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:06,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-04-28 14:41:06,554 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:06,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:06,554 INFO L82 PathProgramCache]: Analyzing trace with hash 506997210, now seen corresponding path program 1 times [2021-04-28 14:41:06,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:06,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821755093] [2021-04-28 14:41:06,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:06,575 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:06,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,581 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:41:06,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,588 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-04-28 14:41:06,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:06,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:06,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,616 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:41:06,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,626 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:06,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821755093] [2021-04-28 14:41:06,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393698123] [2021-04-28 14:41:06,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:06,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:41:06,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:06,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:06,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:06,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:06,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:06,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:06,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:06,747 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-04-28 14:41:06,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:06,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:06,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:06,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:06,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:06,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:06,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:06,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:06,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:06,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:06,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:06,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:06,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:06,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:06,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:06,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:06,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:06,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:06,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:06,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:06,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:06,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:06,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:06,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:06,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:06,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:06,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:06,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:06,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,819 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:06,819 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:06,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:06,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:06,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:06,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-04-28 14:41:06,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289504885] [2021-04-28 14:41:06,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-28 14:41:06,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:06,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-28 14:41:06,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-04-28 14:41:06,831 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:41:06,832 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 1065 transitions, 24169 flow. Second operand has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 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 14:41:06,832 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:06,832 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:41:06,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:09,315 INFO L129 PetriNetUnfolder]: 2877/6350 cut-off events. [2021-04-28 14:41:09,316 INFO L130 PetriNetUnfolder]: For 62057/62099 co-relation queries the response was YES. [2021-04-28 14:41:09,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62455 conditions, 6350 events. 2877/6350 cut-off events. For 62057/62099 co-relation queries the response was YES. Maximal size of possible extension queue 995. Compared 62384 event pairs, 0 based on Foata normal form. 22/1963 useless extension candidates. Maximal degree in co-relation 62371. Up to 4179 conditions per place. [2021-04-28 14:41:09,393 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 917 selfloop transitions, 229 changer transitions 3/1169 dead transitions. [2021-04-28 14:41:09,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 1169 transitions, 28371 flow [2021-04-28 14:41:09,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-28 14:41:09,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-04-28 14:41:09,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1264 transitions. [2021-04-28 14:41:09,395 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.575591985428051 [2021-04-28 14:41:09,395 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1264 transitions. [2021-04-28 14:41:09,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1264 transitions. [2021-04-28 14:41:09,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:09,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1264 transitions. [2021-04-28 14:41:09,398 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 14:41:09,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 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 14:41:09,400 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 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 14:41:09,400 INFO L185 Difference]: Start difference. First operand has 222 places, 1065 transitions, 24169 flow. Second operand 12 states and 1264 transitions. [2021-04-28 14:41:09,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 1169 transitions, 28371 flow [2021-04-28 14:41:10,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 1169 transitions, 28257 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-04-28 14:41:10,606 INFO L241 Difference]: Finished difference. Result has 229 places, 1082 transitions, 25205 flow [2021-04-28 14:41:10,606 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=24055, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1065, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=213, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=837, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=25205, PETRI_PLACES=229, PETRI_TRANSITIONS=1082} [2021-04-28 14:41:10,607 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 155 predicate places. [2021-04-28 14:41:10,607 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:10,607 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 229 places, 1082 transitions, 25205 flow [2021-04-28 14:41:10,607 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 229 places, 1082 transitions, 25205 flow [2021-04-28 14:41:10,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 229 places, 1082 transitions, 25205 flow [2021-04-28 14:41:11,635 INFO L129 PetriNetUnfolder]: 2865/6353 cut-off events. [2021-04-28 14:41:11,635 INFO L130 PetriNetUnfolder]: For 55523/55535 co-relation queries the response was YES. [2021-04-28 14:41:11,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58792 conditions, 6353 events. 2865/6353 cut-off events. For 55523/55535 co-relation queries the response was YES. Maximal size of possible extension queue 1044. Compared 63645 event pairs, 0 based on Foata normal form. 0/1947 useless extension candidates. Maximal degree in co-relation 58708. Up to 3060 conditions per place. [2021-04-28 14:41:11,734 INFO L146 LiptonReduction]: Number of co-enabled transitions 11328 [2021-04-28 14:41:12,112 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:12,112 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:12,112 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1505 [2021-04-28 14:41:12,113 INFO L480 AbstractCegarLoop]: Abstraction has has 229 places, 1082 transitions, 25205 flow [2021-04-28 14:41:12,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 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 14:41:12,113 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:12,113 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:12,316 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:12,317 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:12,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:12,317 INFO L82 PathProgramCache]: Analyzing trace with hash 531328800, now seen corresponding path program 3 times [2021-04-28 14:41:12,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:12,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855150333] [2021-04-28 14:41:12,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:12,342 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:12,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,348 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:41:12,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,357 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-04-28 14:41:12,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:12,367 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:41:12,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:12,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,387 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:41:12,388 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:41:12,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:12,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855150333] [2021-04-28 14:41:12,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533187176] [2021-04-28 14:41:12,404 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 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:12,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-04-28 14:41:12,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:41:12,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-28 14:41:12,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:12,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:12,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:12,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:12,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:12,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:12,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:12,516 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-04-28 14:41:12,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:12,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:12,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:12,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:12,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:12,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:12,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:12,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:12,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:12,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:12,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:12,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:12,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:12,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:12,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:12,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:12,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,565 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-04-28 14:41:12,565 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-04-28 14:41:12,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:41:12,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:41:12,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 14:41:12,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:41:12,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 14:41:12,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,599 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:12,599 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:12,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:12,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:12,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:12,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:41:12,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311214618] [2021-04-28 14:41:12,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:41:12,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:12,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:41:12,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:41:12,618 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:41:12,619 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 1082 transitions, 25205 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 14:41:12,619 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:12,619 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:41:12,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:14,958 INFO L129 PetriNetUnfolder]: 2897/6387 cut-off events. [2021-04-28 14:41:14,959 INFO L130 PetriNetUnfolder]: For 67023/67065 co-relation queries the response was YES. [2021-04-28 14:41:15,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64138 conditions, 6387 events. 2897/6387 cut-off events. For 67023/67065 co-relation queries the response was YES. Maximal size of possible extension queue 1007. Compared 62801 event pairs, 0 based on Foata normal form. 22/1979 useless extension candidates. Maximal degree in co-relation 64052. Up to 4259 conditions per place. [2021-04-28 14:41:15,053 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 951 selfloop transitions, 180 changer transitions 3/1154 dead transitions. [2021-04-28 14:41:15,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 1154 transitions, 28717 flow [2021-04-28 14:41:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-28 14:41:15,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-04-28 14:41:15,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1264 transitions. [2021-04-28 14:41:15,055 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.575591985428051 [2021-04-28 14:41:15,055 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1264 transitions. [2021-04-28 14:41:15,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1264 transitions. [2021-04-28 14:41:15,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:15,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1264 transitions. [2021-04-28 14:41:15,058 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 14:41:15,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 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 14:41:15,059 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 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 14:41:15,059 INFO L185 Difference]: Start difference. First operand has 229 places, 1082 transitions, 25205 flow. Second operand 12 states and 1264 transitions. [2021-04-28 14:41:15,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 1154 transitions, 28717 flow [2021-04-28 14:41:16,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 1154 transitions, 28616 flow, removed 21 selfloop flow, removed 6 redundant places. [2021-04-28 14:41:16,877 INFO L241 Difference]: Finished difference. Result has 236 places, 1091 transitions, 25938 flow [2021-04-28 14:41:16,878 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=25104, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1082, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=902, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=25938, PETRI_PLACES=236, PETRI_TRANSITIONS=1091} [2021-04-28 14:41:16,878 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 162 predicate places. [2021-04-28 14:41:16,878 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:16,878 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 236 places, 1091 transitions, 25938 flow [2021-04-28 14:41:16,878 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 236 places, 1091 transitions, 25938 flow [2021-04-28 14:41:16,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 236 places, 1091 transitions, 25938 flow [2021-04-28 14:41:17,919 INFO L129 PetriNetUnfolder]: 2885/6417 cut-off events. [2021-04-28 14:41:17,919 INFO L130 PetriNetUnfolder]: For 58165/58177 co-relation queries the response was YES. [2021-04-28 14:41:17,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60270 conditions, 6417 events. 2885/6417 cut-off events. For 58165/58177 co-relation queries the response was YES. Maximal size of possible extension queue 1097. Compared 64794 event pairs, 0 based on Foata normal form. 0/1965 useless extension candidates. Maximal degree in co-relation 60183. Up to 3080 conditions per place. [2021-04-28 14:41:18,033 INFO L146 LiptonReduction]: Number of co-enabled transitions 11408 [2021-04-28 14:41:18,336 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:18,336 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:18,337 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1459 [2021-04-28 14:41:18,337 INFO L480 AbstractCegarLoop]: Abstraction has has 236 places, 1091 transitions, 25938 flow [2021-04-28 14:41:18,337 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 14:41:18,337 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:18,337 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:18,538 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-04-28 14:41:18,538 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:18,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:18,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1240779331, now seen corresponding path program 1 times [2021-04-28 14:41:18,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:18,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606976407] [2021-04-28 14:41:18,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:18,559 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:18,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,565 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:41:18,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:18,572 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-04-28 14:41:18,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:18,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:18,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:18,604 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:41:18,605 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:41:18,623 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:18,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606976407] [2021-04-28 14:41:18,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866421957] [2021-04-28 14:41:18,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:18,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:41:18,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:18,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:18,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:18,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:18,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:18,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:18,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:18,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:18,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:18,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:18,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:18,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:18,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:18,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:18,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:18,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:18,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:18,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:18,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:18,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:18,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:18,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:18,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:18,768 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:41:18,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:41:18,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:41:18,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:18,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:18,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:18,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:18,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:18,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:18,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:18,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:18,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:18,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:18,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:18,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:18,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:18,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:18,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,831 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:18,832 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:18,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:18,849 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:18,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:18,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:41:18,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903702720] [2021-04-28 14:41:18,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:41:18,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:18,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:41:18,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:41:18,852 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:41:18,853 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 1091 transitions, 25938 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 14:41:18,854 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:18,854 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:41:18,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:21,526 INFO L129 PetriNetUnfolder]: 2976/6536 cut-off events. [2021-04-28 14:41:21,527 INFO L130 PetriNetUnfolder]: For 75117/75159 co-relation queries the response was YES. [2021-04-28 14:41:21,562 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66592 conditions, 6536 events. 2976/6536 cut-off events. For 75117/75159 co-relation queries the response was YES. Maximal size of possible extension queue 1052. Compared 65066 event pairs, 0 based on Foata normal form. 22/2026 useless extension candidates. Maximal degree in co-relation 66503. Up to 4074 conditions per place. [2021-04-28 14:41:21,598 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 799 selfloop transitions, 366 changer transitions 3/1188 dead transitions. [2021-04-28 14:41:21,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 1188 transitions, 29975 flow [2021-04-28 14:41:21,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-04-28 14:41:21,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-04-28 14:41:21,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1688 transitions. [2021-04-28 14:41:21,600 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5765027322404371 [2021-04-28 14:41:21,600 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1688 transitions. [2021-04-28 14:41:21,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1688 transitions. [2021-04-28 14:41:21,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:21,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1688 transitions. [2021-04-28 14:41:21,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 105.5) internal successors, (1688), 16 states have internal predecessors, (1688), 0 states have call successors, (0), 0 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 14:41:21,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 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 14:41:21,605 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 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 14:41:21,605 INFO L185 Difference]: Start difference. First operand has 236 places, 1091 transitions, 25938 flow. Second operand 16 states and 1688 transitions. [2021-04-28 14:41:21,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 1188 transitions, 29975 flow [2021-04-28 14:41:23,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 1188 transitions, 29764 flow, removed 13 selfloop flow, removed 9 redundant places. [2021-04-28 14:41:23,239 INFO L241 Difference]: Finished difference. Result has 245 places, 1121 transitions, 27567 flow [2021-04-28 14:41:23,240 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=25727, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1091, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=337, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=726, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=27567, PETRI_PLACES=245, PETRI_TRANSITIONS=1121} [2021-04-28 14:41:23,240 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 171 predicate places. [2021-04-28 14:41:23,240 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:23,240 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 245 places, 1121 transitions, 27567 flow [2021-04-28 14:41:23,240 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 245 places, 1121 transitions, 27567 flow [2021-04-28 14:41:23,252 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 245 places, 1121 transitions, 27567 flow [2021-04-28 14:41:24,325 INFO L129 PetriNetUnfolder]: 2964/6576 cut-off events. [2021-04-28 14:41:24,325 INFO L130 PetriNetUnfolder]: For 63160/63202 co-relation queries the response was YES. [2021-04-28 14:41:24,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63409 conditions, 6576 events. 2964/6576 cut-off events. For 63160/63202 co-relation queries the response was YES. Maximal size of possible extension queue 1111. Compared 66460 event pairs, 0 based on Foata normal form. 0/2006 useless extension candidates. Maximal degree in co-relation 63320. Up to 3169 conditions per place. [2021-04-28 14:41:24,438 INFO L146 LiptonReduction]: Number of co-enabled transitions 11694 [2021-04-28 14:41:24,841 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:24,842 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:24,842 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1602 [2021-04-28 14:41:24,842 INFO L480 AbstractCegarLoop]: Abstraction has has 245 places, 1121 transitions, 27567 flow [2021-04-28 14:41:24,843 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 14:41:24,843 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:24,843 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:25,043 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-04-28 14:41:25,043 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:25,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:25,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1242299881, now seen corresponding path program 2 times [2021-04-28 14:41:25,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:25,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393703970] [2021-04-28 14:41:25,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:25,074 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:25,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,082 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:41:25,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:25,089 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-04-28 14:41:25,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:25,097 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-04-28 14:41:25,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:25,107 INFO L142 QuantifierPusher]: treesize reduction 8, result has 57.9 percent of original size [2021-04-28 14:41:25,107 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:41:25,126 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:41:25,126 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:41:25,144 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:25,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393703970] [2021-04-28 14:41:25,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689989061] [2021-04-28 14:41:25,144 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 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:25,206 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:41:25,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:41:25,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:41:25,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:25,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:25,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:25,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:25,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:25,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:25,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:25,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:25,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:25,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:25,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:25,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:25,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:25,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:25,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:25,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:25,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:25,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:25,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:25,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:25,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:25,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:25,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:25,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:25,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:25,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:25,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:25,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:25,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:25,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:25,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:25,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:25,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:25,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:25,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:25,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:25,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:25,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:25,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:25,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:25,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:25,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:25,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:41:25,339 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-04-28 14:41:25,340 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:25,340 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:25,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:25,352 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:25,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:25,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:41:25,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550898116] [2021-04-28 14:41:25,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:41:25,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:25,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:41:25,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:41:25,355 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:41:25,356 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 1121 transitions, 27567 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 14:41:25,356 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:25,356 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:41:25,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:28,866 INFO L129 PetriNetUnfolder]: 3412/7504 cut-off events. [2021-04-28 14:41:28,866 INFO L130 PetriNetUnfolder]: For 144351/144405 co-relation queries the response was YES. [2021-04-28 14:41:28,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79514 conditions, 7504 events. 3412/7504 cut-off events. For 144351/144405 co-relation queries the response was YES. Maximal size of possible extension queue 1250. Compared 75576 event pairs, 0 based on Foata normal form. 86/2381 useless extension candidates. Maximal degree in co-relation 79423. Up to 3801 conditions per place. [2021-04-28 14:41:28,974 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 373 selfloop transitions, 909 changer transitions 15/1317 dead transitions. [2021-04-28 14:41:28,975 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 1317 transitions, 35467 flow [2021-04-28 14:41:28,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-04-28 14:41:28,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-04-28 14:41:28,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2556 transitions. [2021-04-28 14:41:28,978 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5819672131147541 [2021-04-28 14:41:28,978 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2556 transitions. [2021-04-28 14:41:28,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2556 transitions. [2021-04-28 14:41:28,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:28,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2556 transitions. [2021-04-28 14:41:28,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 106.5) internal successors, (2556), 24 states have internal predecessors, (2556), 0 states have call successors, (0), 0 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 14:41:28,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 183.0) internal successors, (4575), 25 states have internal predecessors, (4575), 0 states have call successors, (0), 0 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 14:41:28,986 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 183.0) internal successors, (4575), 25 states have internal predecessors, (4575), 0 states have call successors, (0), 0 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 14:41:28,986 INFO L185 Difference]: Start difference. First operand has 245 places, 1121 transitions, 27567 flow. Second operand 24 states and 2556 transitions. [2021-04-28 14:41:28,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 1317 transitions, 35467 flow [2021-04-28 14:41:31,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 1317 transitions, 35225 flow, removed 27 selfloop flow, removed 11 redundant places. [2021-04-28 14:41:31,049 INFO L241 Difference]: Finished difference. Result has 263 places, 1262 transitions, 34303 flow [2021-04-28 14:41:31,050 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=27329, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=785, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=34303, PETRI_PLACES=263, PETRI_TRANSITIONS=1262} [2021-04-28 14:41:31,050 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 189 predicate places. [2021-04-28 14:41:31,050 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:31,050 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 263 places, 1262 transitions, 34303 flow [2021-04-28 14:41:31,051 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 263 places, 1262 transitions, 34303 flow [2021-04-28 14:41:31,065 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 263 places, 1262 transitions, 34303 flow [2021-04-28 14:41:32,511 INFO L129 PetriNetUnfolder]: 3352/7480 cut-off events. [2021-04-28 14:41:32,512 INFO L130 PetriNetUnfolder]: For 83505/83529 co-relation queries the response was YES. [2021-04-28 14:41:32,565 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79139 conditions, 7480 events. 3352/7480 cut-off events. For 83505/83529 co-relation queries the response was YES. Maximal size of possible extension queue 1346. Compared 77614 event pairs, 0 based on Foata normal form. 0/2300 useless extension candidates. Maximal degree in co-relation 79044. Up to 3733 conditions per place. [2021-04-28 14:41:32,647 INFO L146 LiptonReduction]: Number of co-enabled transitions 13038 [2021-04-28 14:41:33,110 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:33,110 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:33,110 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2060 [2021-04-28 14:41:33,111 INFO L480 AbstractCegarLoop]: Abstraction has has 263 places, 1262 transitions, 34303 flow [2021-04-28 14:41:33,111 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 14:41:33,111 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:33,111 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:33,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-04-28 14:41:33,312 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:33,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:33,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1194088433, now seen corresponding path program 4 times [2021-04-28 14:41:33,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:33,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633773035] [2021-04-28 14:41:33,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:33,333 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:33,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,345 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:41:33,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:33,352 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:41:33,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:33,361 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-04-28 14:41:33,361 INFO L147 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size 9 [2021-04-28 14:41:33,376 INFO L142 QuantifierPusher]: treesize reduction 12, result has 36.8 percent of original size [2021-04-28 14:41:33,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,386 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:41:33,387 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:41:33,400 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 14:41:33,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633773035] [2021-04-28 14:41:33,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266674513] [2021-04-28 14:41:33,401 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 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:33,470 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-28 14:41:33,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:41:33,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:41:33,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:33,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:33,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:33,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:33,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:33,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:33,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:33,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:33,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:33,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:33,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:33,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:33,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:33,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:33,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:33,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:33,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:33,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:33,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:33,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:33,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:33,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:33,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:33,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:33,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:33,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:33,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:33,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:33,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,548 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-04-28 14:41:33,549 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-04-28 14:41:33,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:33,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:33,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:33,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-04-28 14:41:33,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:33,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:33,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-04-28 14:41:33,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:33,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:33,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 14:41:33,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:33,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:33,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-04-28 14:41:33,591 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-04-28 14:41:33,592 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-28 14:41:33,593 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:33,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:33,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-28 14:41:33,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:33,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-28 14:41:33,616 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 14:41:33,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:33,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:41:33,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742921893] [2021-04-28 14:41:33,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:41:33,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:33,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:41:33,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:41:33,619 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:41:33,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 1262 transitions, 34303 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 14:41:33,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:33,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:41:33,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:37,332 INFO L129 PetriNetUnfolder]: 3656/8135 cut-off events. [2021-04-28 14:41:37,332 INFO L130 PetriNetUnfolder]: For 178983/179037 co-relation queries the response was YES. [2021-04-28 14:41:37,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94175 conditions, 8135 events. 3656/8135 cut-off events. For 178983/179037 co-relation queries the response was YES. Maximal size of possible extension queue 1327. Compared 83880 event pairs, 0 based on Foata normal form. 86/2572 useless extension candidates. Maximal degree in co-relation 94078. Up to 4189 conditions per place. [2021-04-28 14:41:37,457 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 596 selfloop transitions, 771 changer transitions 21/1408 dead transitions. [2021-04-28 14:41:37,457 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 1408 transitions, 41627 flow [2021-04-28 14:41:37,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-04-28 14:41:37,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-04-28 14:41:37,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2028 transitions. [2021-04-28 14:41:37,460 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5832614322691976 [2021-04-28 14:41:37,460 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2028 transitions. [2021-04-28 14:41:37,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2028 transitions. [2021-04-28 14:41:37,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:37,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2028 transitions. [2021-04-28 14:41:37,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 106.73684210526316) internal successors, (2028), 19 states have internal predecessors, (2028), 0 states have call successors, (0), 0 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 14:41:37,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 183.0) internal successors, (3660), 20 states have internal predecessors, (3660), 0 states have call successors, (0), 0 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 14:41:37,465 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 183.0) internal successors, (3660), 20 states have internal predecessors, (3660), 0 states have call successors, (0), 0 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 14:41:37,465 INFO L185 Difference]: Start difference. First operand has 263 places, 1262 transitions, 34303 flow. Second operand 19 states and 2028 transitions. [2021-04-28 14:41:37,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 1408 transitions, 41627 flow [2021-04-28 14:41:43,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 1408 transitions, 39524 flow, removed 840 selfloop flow, removed 15 redundant places. [2021-04-28 14:41:44,019 INFO L241 Difference]: Finished difference. Result has 271 places, 1355 transitions, 37873 flow [2021-04-28 14:41:44,020 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=32200, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=693, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=37873, PETRI_PLACES=271, PETRI_TRANSITIONS=1355} [2021-04-28 14:41:44,021 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 197 predicate places. [2021-04-28 14:41:44,021 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:44,021 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 271 places, 1355 transitions, 37873 flow [2021-04-28 14:41:44,021 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 271 places, 1355 transitions, 37873 flow [2021-04-28 14:41:44,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 271 places, 1355 transitions, 37873 flow [2021-04-28 14:41:45,681 INFO L129 PetriNetUnfolder]: 3572/8015 cut-off events. [2021-04-28 14:41:45,681 INFO L130 PetriNetUnfolder]: For 95682/95706 co-relation queries the response was YES. [2021-04-28 14:41:45,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87650 conditions, 8015 events. 3572/8015 cut-off events. For 95682/95706 co-relation queries the response was YES. Maximal size of possible extension queue 1386. Compared 84408 event pairs, 0 based on Foata normal form. 0/2475 useless extension candidates. Maximal degree in co-relation 87551. Up to 4056 conditions per place. [2021-04-28 14:41:45,831 INFO L146 LiptonReduction]: Number of co-enabled transitions 13922 [2021-04-28 14:41:46,329 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:46,329 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:46,329 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2308 [2021-04-28 14:41:46,330 INFO L480 AbstractCegarLoop]: Abstraction has has 271 places, 1355 transitions, 37873 flow [2021-04-28 14:41:46,330 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 14:41:46,330 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:46,330 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:46,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-04-28 14:41:46,537 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:46,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:46,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1105926612, now seen corresponding path program 4 times [2021-04-28 14:41:46,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:46,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794474277] [2021-04-28 14:41:46,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:46,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:46,560 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:46,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,566 INFO L142 QuantifierPusher]: treesize reduction 16, result has 38.5 percent of original size [2021-04-28 14:41:46,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:46,575 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-04-28 14:41:46,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:46,584 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:41:46,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,595 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:41:46,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,607 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:41:46,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,620 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:41:46,620 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:41:46,642 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:46,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794474277] [2021-04-28 14:41:46,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658592592] [2021-04-28 14:41:46,642 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 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:46,704 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-28 14:41:46,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:41:46,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:41:46,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:46,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:46,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:46,735 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-04-28 14:41:46,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:46,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:46,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:46,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:46,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:46,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:46,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:46,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:46,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:46,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:46,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:46,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:46,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:46,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:46,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:46,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:46,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:46,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:46,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:46,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:46,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:46,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:46,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:46,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:46,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:46,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:46,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:46,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:46,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,857 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:46,857 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:46,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:46,879 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:46,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:46,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-04-28 14:41:46,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938424962] [2021-04-28 14:41:46,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-28 14:41:46,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:46,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-28 14:41:46,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-04-28 14:41:46,883 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:41:46,884 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 1355 transitions, 37873 flow. Second operand has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 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 14:41:46,884 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:46,884 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:41:46,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:50,596 INFO L129 PetriNetUnfolder]: 3604/8126 cut-off events. [2021-04-28 14:41:50,597 INFO L130 PetriNetUnfolder]: For 121223/121277 co-relation queries the response was YES. [2021-04-28 14:41:50,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94434 conditions, 8126 events. 3604/8126 cut-off events. For 121223/121277 co-relation queries the response was YES. Maximal size of possible extension queue 1348. Compared 84590 event pairs, 0 based on Foata normal form. 26/2527 useless extension candidates. Maximal degree in co-relation 94333. Up to 5627 conditions per place. [2021-04-28 14:41:50,705 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1302 selfloop transitions, 86 changer transitions 3/1411 dead transitions. [2021-04-28 14:41:50,705 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 1411 transitions, 41747 flow [2021-04-28 14:41:50,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 14:41:50,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 14:41:50,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 948 transitions. [2021-04-28 14:41:50,707 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.575591985428051 [2021-04-28 14:41:50,707 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 948 transitions. [2021-04-28 14:41:50,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 948 transitions. [2021-04-28 14:41:50,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:50,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 948 transitions. [2021-04-28 14:41:50,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 105.33333333333333) internal successors, (948), 9 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:50,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 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 14:41:50,710 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 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 14:41:50,710 INFO L185 Difference]: Start difference. First operand has 271 places, 1355 transitions, 37873 flow. Second operand 9 states and 948 transitions. [2021-04-28 14:41:50,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 1411 transitions, 41747 flow [2021-04-28 14:41:55,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 1411 transitions, 40562 flow, removed 498 selfloop flow, removed 9 redundant places. [2021-04-28 14:41:56,034 INFO L241 Difference]: Finished difference. Result has 272 places, 1360 transitions, 37196 flow [2021-04-28 14:41:56,035 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=36744, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=37196, PETRI_PLACES=272, PETRI_TRANSITIONS=1360} [2021-04-28 14:41:56,035 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 198 predicate places. [2021-04-28 14:41:56,035 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:56,036 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 272 places, 1360 transitions, 37196 flow [2021-04-28 14:41:56,036 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 272 places, 1360 transitions, 37196 flow [2021-04-28 14:41:56,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 272 places, 1360 transitions, 37196 flow [2021-04-28 14:41:57,783 INFO L129 PetriNetUnfolder]: 3592/8069 cut-off events. [2021-04-28 14:41:57,783 INFO L130 PetriNetUnfolder]: For 92552/92576 co-relation queries the response was YES. [2021-04-28 14:41:57,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86556 conditions, 8069 events. 3592/8069 cut-off events. For 92552/92576 co-relation queries the response was YES. Maximal size of possible extension queue 1368. Compared 85327 event pairs, 0 based on Foata normal form. 0/2488 useless extension candidates. Maximal degree in co-relation 86455. Up to 4084 conditions per place. [2021-04-28 14:41:57,930 INFO L146 LiptonReduction]: Number of co-enabled transitions 13976 [2021-04-28 14:41:58,451 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:58,451 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:58,451 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2416 [2021-04-28 14:41:58,452 INFO L480 AbstractCegarLoop]: Abstraction has has 272 places, 1360 transitions, 37196 flow [2021-04-28 14:41:58,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 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 14:41:58,453 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:58,453 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:58,653 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-04-28 14:41:58,653 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:58,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:58,654 INFO L82 PathProgramCache]: Analyzing trace with hash 532140783, now seen corresponding path program 2 times [2021-04-28 14:41:58,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:58,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705878393] [2021-04-28 14:41:58,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:58,683 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:58,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,689 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:41:58,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:58,697 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-04-28 14:41:58,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:58,706 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:41:58,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:58,716 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:41:58,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:58,729 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:41:58,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:58,741 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:41:58,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,756 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:58,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705878393] [2021-04-28 14:41:58,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467548018] [2021-04-28 14:41:58,756 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 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:58,817 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:41:58,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:41:58,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:41:58,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:58,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:58,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:58,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:58,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:58,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:58,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:58,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:58,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:58,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:58,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:58,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:58,869 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-04-28 14:41:58,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:58,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:58,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:58,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:58,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:58,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:58,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:58,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:58,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:58,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:58,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:58,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:58,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:58,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:58,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:58,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:58,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:58,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:58,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:58,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:58,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:58,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:58,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:58,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:58,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:58,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:58,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:58,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:58,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:58,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:58,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:58,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:58,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:58,975 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:58,976 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:58,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:58,987 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:58,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:58,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-04-28 14:41:58,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033405185] [2021-04-28 14:41:58,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-28 14:41:58,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:58,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-28 14:41:58,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-04-28 14:41:58,990 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:41:58,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 1360 transitions, 37196 flow. Second operand has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:58,991 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:58,991 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:41:58,991 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:42:02,626 INFO L129 PetriNetUnfolder]: 3624/8176 cut-off events. [2021-04-28 14:42:02,626 INFO L130 PetriNetUnfolder]: For 118907/118961 co-relation queries the response was YES. [2021-04-28 14:42:02,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93381 conditions, 8176 events. 3624/8176 cut-off events. For 118907/118961 co-relation queries the response was YES. Maximal size of possible extension queue 1348. Compared 85207 event pairs, 0 based on Foata normal form. 26/2539 useless extension candidates. Maximal degree in co-relation 93278. Up to 5512 conditions per place. [2021-04-28 14:42:02,746 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1238 selfloop transitions, 151 changer transitions 3/1412 dead transitions. [2021-04-28 14:42:02,746 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 1412 transitions, 40948 flow [2021-04-28 14:42:02,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-28 14:42:02,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-04-28 14:42:02,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1056 transitions. [2021-04-28 14:42:02,748 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5770491803278689 [2021-04-28 14:42:02,748 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1056 transitions. [2021-04-28 14:42:02,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1056 transitions. [2021-04-28 14:42:02,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:42:02,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1056 transitions. [2021-04-28 14:42:02,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 105.6) internal successors, (1056), 10 states have internal predecessors, (1056), 0 states have call successors, (0), 0 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 14:42:02,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 0 states have call successors, (0), 0 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 14:42:02,752 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 0 states have call successors, (0), 0 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 14:42:02,752 INFO L185 Difference]: Start difference. First operand has 272 places, 1360 transitions, 37196 flow. Second operand 10 states and 1056 transitions. [2021-04-28 14:42:02,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 1412 transitions, 40948 flow [2021-04-28 14:42:06,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 1412 transitions, 40854 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-04-28 14:42:06,187 INFO L241 Difference]: Finished difference. Result has 277 places, 1365 transitions, 37771 flow [2021-04-28 14:42:06,187 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=37102, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=37771, PETRI_PLACES=277, PETRI_TRANSITIONS=1365} [2021-04-28 14:42:06,188 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 203 predicate places. [2021-04-28 14:42:06,188 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:42:06,188 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 277 places, 1365 transitions, 37771 flow [2021-04-28 14:42:06,188 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 277 places, 1365 transitions, 37771 flow [2021-04-28 14:42:06,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 277 places, 1365 transitions, 37771 flow [2021-04-28 14:42:07,860 INFO L129 PetriNetUnfolder]: 3612/8126 cut-off events. [2021-04-28 14:42:07,860 INFO L130 PetriNetUnfolder]: For 100781/100817 co-relation queries the response was YES. [2021-04-28 14:42:07,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87923 conditions, 8126 events. 3612/8126 cut-off events. For 100781/100817 co-relation queries the response was YES. Maximal size of possible extension queue 1430. Compared 85532 event pairs, 0 based on Foata normal form. 0/2500 useless extension candidates. Maximal degree in co-relation 87820. Up to 4112 conditions per place. [2021-04-28 14:42:08,236 INFO L146 LiptonReduction]: Number of co-enabled transitions 14030 [2021-04-28 14:42:08,884 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:42:08,885 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:42:08,885 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2697 [2021-04-28 14:42:08,886 INFO L480 AbstractCegarLoop]: Abstraction has has 277 places, 1365 transitions, 37771 flow [2021-04-28 14:42:08,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:08,886 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:42:08,886 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:42:09,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:42:09,087 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:42:09,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:42:09,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1972833574, now seen corresponding path program 3 times [2021-04-28 14:42:09,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:42:09,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464576119] [2021-04-28 14:42:09,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:42:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:42:09,109 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:42:09,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,115 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:42:09,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:09,123 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:42:09,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:09,132 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:42:09,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:09,142 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:42:09,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:09,154 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:42:09,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:09,167 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:42:09,167 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:42:09,183 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:09,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464576119] [2021-04-28 14:42:09,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503676503] [2021-04-28 14:42:09,185 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 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:42:09,263 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-04-28 14:42:09,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:42:09,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:42:09,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:42:09,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:09,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:09,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:09,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:09,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:09,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:09,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:09,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:09,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:09,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:09,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:09,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:09,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:09,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:09,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:09,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:09,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:09,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:09,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:09,343 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-04-28 14:42:09,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:09,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:09,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:09,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:09,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:09,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:09,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:09,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:09,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:09,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:09,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:09,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:09,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:09,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:09,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:09,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:09,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:09,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:09,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:09,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:09,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:09,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:09,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:09,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:09,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:09,422 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:42:09,422 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:42:09,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:09,445 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:09,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:42:09,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-04-28 14:42:09,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363715631] [2021-04-28 14:42:09,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-28 14:42:09,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:42:09,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-28 14:42:09,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2021-04-28 14:42:09,449 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:42:09,450 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 1365 transitions, 37771 flow. Second operand has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 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 14:42:09,451 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:42:09,451 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:42:09,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:42:13,280 INFO L129 PetriNetUnfolder]: 3676/8258 cut-off events. [2021-04-28 14:42:13,280 INFO L130 PetriNetUnfolder]: For 125364/125418 co-relation queries the response was YES. [2021-04-28 14:42:13,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95406 conditions, 8258 events. 3676/8258 cut-off events. For 125364/125418 co-relation queries the response was YES. Maximal size of possible extension queue 1365. Compared 85814 event pairs, 0 based on Foata normal form. 26/2560 useless extension candidates. Maximal degree in co-relation 95301. Up to 5458 conditions per place. [2021-04-28 14:42:13,392 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1189 selfloop transitions, 201 changer transitions 3/1413 dead transitions. [2021-04-28 14:42:13,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 1413 transitions, 41605 flow [2021-04-28 14:42:13,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 14:42:13,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 14:42:13,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1164 transitions. [2021-04-28 14:42:13,394 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5782414307004471 [2021-04-28 14:42:13,394 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1164 transitions. [2021-04-28 14:42:13,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1164 transitions. [2021-04-28 14:42:13,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:42:13,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1164 transitions. [2021-04-28 14:42:13,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 105.81818181818181) internal successors, (1164), 11 states have internal predecessors, (1164), 0 states have call successors, (0), 0 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 14:42:13,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 0 states have call successors, (0), 0 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 14:42:13,397 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 0 states have call successors, (0), 0 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 14:42:13,397 INFO L185 Difference]: Start difference. First operand has 277 places, 1365 transitions, 37771 flow. Second operand 11 states and 1164 transitions. [2021-04-28 14:42:13,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 1413 transitions, 41605 flow [2021-04-28 14:42:16,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 1413 transitions, 41406 flow, removed 17 selfloop flow, removed 7 redundant places. [2021-04-28 14:42:16,618 INFO L241 Difference]: Finished difference. Result has 282 places, 1378 transitions, 38663 flow [2021-04-28 14:42:16,619 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=37588, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=38663, PETRI_PLACES=282, PETRI_TRANSITIONS=1378} [2021-04-28 14:42:16,619 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 208 predicate places. [2021-04-28 14:42:16,619 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:42:16,619 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 282 places, 1378 transitions, 38663 flow [2021-04-28 14:42:16,620 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 282 places, 1378 transitions, 38663 flow [2021-04-28 14:42:16,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 282 places, 1378 transitions, 38663 flow [2021-04-28 14:42:18,526 INFO L129 PetriNetUnfolder]: 3664/8195 cut-off events. [2021-04-28 14:42:18,526 INFO L130 PetriNetUnfolder]: For 100230/100254 co-relation queries the response was YES. [2021-04-28 14:42:18,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89848 conditions, 8195 events. 3664/8195 cut-off events. For 100230/100254 co-relation queries the response was YES. Maximal size of possible extension queue 1414. Compared 86569 event pairs, 0 based on Foata normal form. 0/2520 useless extension candidates. Maximal degree in co-relation 89743. Up to 4140 conditions per place. [2021-04-28 14:42:18,686 INFO L146 LiptonReduction]: Number of co-enabled transitions 14148 [2021-04-28 14:42:19,385 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:42:19,385 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:42:19,385 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2766 [2021-04-28 14:42:19,386 INFO L480 AbstractCegarLoop]: Abstraction has has 282 places, 1378 transitions, 38663 flow [2021-04-28 14:42:19,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 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 14:42:19,386 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:42:19,386 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:42:19,589 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:42:19,590 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:42:19,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:42:19,591 INFO L82 PathProgramCache]: Analyzing trace with hash 2020806694, now seen corresponding path program 4 times [2021-04-28 14:42:19,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:42:19,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616501856] [2021-04-28 14:42:19,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:42:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:42:19,610 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:42:19,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,616 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:42:19,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:19,624 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:42:19,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:19,632 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:42:19,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:19,642 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:42:19,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:19,653 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-04-28 14:42:19,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:19,664 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:42:19,664 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:42:19,678 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:19,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616501856] [2021-04-28 14:42:19,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144296785] [2021-04-28 14:42:19,679 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 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:42:19,751 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-28 14:42:19,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:42:19,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:42:19,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:42:19,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:19,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:19,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:19,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:19,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:19,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:19,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:19,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:19,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:19,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:19,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:19,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:19,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:19,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:19,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:19,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:19,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:19,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:19,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:19,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:19,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:19,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:19,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:19,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:19,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:19,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:19,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:19,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:19,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:19,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:19,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:19,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:19,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:19,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:19,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:19,867 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-04-28 14:42:19,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:19,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:19,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:19,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:19,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:19,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:19,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:19,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:19,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:19,890 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:42:19,891 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:42:19,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:19,908 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:19,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:42:19,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-04-28 14:42:19,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219422283] [2021-04-28 14:42:19,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-28 14:42:19,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:42:19,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-28 14:42:19,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2021-04-28 14:42:19,911 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:42:19,913 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 1378 transitions, 38663 flow. Second operand has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 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 14:42:19,913 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:42:19,913 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:42:19,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:42:23,920 INFO L129 PetriNetUnfolder]: 3696/8315 cut-off events. [2021-04-28 14:42:23,920 INFO L130 PetriNetUnfolder]: For 129165/129219 co-relation queries the response was YES. [2021-04-28 14:42:23,977 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96796 conditions, 8315 events. 3696/8315 cut-off events. For 129165/129219 co-relation queries the response was YES. Maximal size of possible extension queue 1379. Compared 86566 event pairs, 0 based on Foata normal form. 26/2574 useless extension candidates. Maximal degree in co-relation 96689. Up to 5365 conditions per place. [2021-04-28 14:42:24,030 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1126 selfloop transitions, 254 changer transitions 6/1406 dead transitions. [2021-04-28 14:42:24,030 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 1406 transitions, 42083 flow [2021-04-28 14:42:24,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-28 14:42:24,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-04-28 14:42:24,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1380 transitions. [2021-04-28 14:42:24,032 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5800756620428752 [2021-04-28 14:42:24,032 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1380 transitions. [2021-04-28 14:42:24,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1380 transitions. [2021-04-28 14:42:24,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:42:24,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1380 transitions. [2021-04-28 14:42:24,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 106.15384615384616) internal successors, (1380), 13 states have internal predecessors, (1380), 0 states have call successors, (0), 0 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 14:42:24,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 183.0) internal successors, (2562), 14 states have internal predecessors, (2562), 0 states have call successors, (0), 0 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 14:42:24,036 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 183.0) internal successors, (2562), 14 states have internal predecessors, (2562), 0 states have call successors, (0), 0 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 14:42:24,036 INFO L185 Difference]: Start difference. First operand has 282 places, 1378 transitions, 38663 flow. Second operand 13 states and 1380 transitions. [2021-04-28 14:42:24,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 1406 transitions, 42083 flow [2021-04-28 14:42:26,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 1406 transitions, 41837 flow, removed 13 selfloop flow, removed 8 redundant places. [2021-04-28 14:42:26,909 INFO L241 Difference]: Finished difference. Result has 287 places, 1376 transitions, 39255 flow [2021-04-28 14:42:26,910 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=38425, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=250, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=39255, PETRI_PLACES=287, PETRI_TRANSITIONS=1376} [2021-04-28 14:42:26,910 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 213 predicate places. [2021-04-28 14:42:26,910 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:42:26,910 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 287 places, 1376 transitions, 39255 flow [2021-04-28 14:42:26,910 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 287 places, 1376 transitions, 39255 flow [2021-04-28 14:42:26,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 287 places, 1376 transitions, 39255 flow [2021-04-28 14:42:28,643 INFO L129 PetriNetUnfolder]: 3681/8219 cut-off events. [2021-04-28 14:42:28,643 INFO L130 PetriNetUnfolder]: For 107603/107627 co-relation queries the response was YES. [2021-04-28 14:42:28,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91233 conditions, 8219 events. 3681/8219 cut-off events. For 107603/107627 co-relation queries the response was YES. Maximal size of possible extension queue 1431. Compared 86458 event pairs, 0 based on Foata normal form. 0/2528 useless extension candidates. Maximal degree in co-relation 91127. Up to 4168 conditions per place. [2021-04-28 14:42:28,805 INFO L146 LiptonReduction]: Number of co-enabled transitions 14120 [2021-04-28 14:42:29,732 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:42:29,732 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:42:29,732 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2822 [2021-04-28 14:42:29,733 INFO L480 AbstractCegarLoop]: Abstraction has has 287 places, 1376 transitions, 39255 flow [2021-04-28 14:42:29,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 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 14:42:29,733 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:42:29,733 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:42:29,933 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-04-28 14:42:29,934 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:42:29,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:42:29,935 INFO L82 PathProgramCache]: Analyzing trace with hash 2020856914, now seen corresponding path program 5 times [2021-04-28 14:42:29,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:42:29,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681023113] [2021-04-28 14:42:29,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:42:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:42:29,961 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:42:29,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:29,971 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:42:29,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:29,980 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:42:29,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:29,990 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:42:29,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:30,000 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:42:30,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:30,013 INFO L142 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size [2021-04-28 14:42:30,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:42:30,037 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:42:30,038 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:42:30,058 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:30,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681023113] [2021-04-28 14:42:30,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843577283] [2021-04-28 14:42:30,058 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 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:42:30,123 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-04-28 14:42:30,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:42:30,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:42:30,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:42:30,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:30,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:30,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:30,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:30,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:30,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:30,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:30,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:30,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:30,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:30,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:30,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:30,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:30,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:30,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:30,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:30,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:30,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:30,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:30,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:30,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:30,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:30,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:30,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:30,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:30,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:30,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:30,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:30,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:30,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:30,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:30,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:30,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:30,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:30,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:30,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:30,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:30,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:30,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:30,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:30,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:30,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:30,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:30,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:30,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:30,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:42:30,291 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-04-28 14:42:30,292 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:42:30,293 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:42:30,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:30,312 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:30,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:42:30,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-04-28 14:42:30,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149631934] [2021-04-28 14:42:30,313 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-28 14:42:30,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:42:30,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-28 14:42:30,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-04-28 14:42:30,316 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:42:30,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 1376 transitions, 39255 flow. Second operand has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 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 14:42:30,318 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:42:30,318 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:42:30,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:42:34,744 INFO L129 PetriNetUnfolder]: 3785/8477 cut-off events. [2021-04-28 14:42:34,745 INFO L130 PetriNetUnfolder]: For 157031/157085 co-relation queries the response was YES. [2021-04-28 14:42:34,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100101 conditions, 8477 events. 3785/8477 cut-off events. For 157031/157085 co-relation queries the response was YES. Maximal size of possible extension queue 1392. Compared 87993 event pairs, 0 based on Foata normal form. 46/2641 useless extension candidates. Maximal degree in co-relation 99993. Up to 5417 conditions per place. [2021-04-28 14:42:34,868 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1130 selfloop transitions, 297 changer transitions 15/1462 dead transitions. [2021-04-28 14:42:34,868 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 1462 transitions, 45459 flow [2021-04-28 14:42:34,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-28 14:42:34,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-04-28 14:42:34,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1917 transitions. [2021-04-28 14:42:34,870 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5819672131147541 [2021-04-28 14:42:34,870 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1917 transitions. [2021-04-28 14:42:34,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1917 transitions. [2021-04-28 14:42:34,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:42:34,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1917 transitions. [2021-04-28 14:42:34,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 106.5) internal successors, (1917), 18 states have internal predecessors, (1917), 0 states have call successors, (0), 0 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 14:42:34,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 183.0) internal successors, (3477), 19 states have internal predecessors, (3477), 0 states have call successors, (0), 0 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 14:42:34,876 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 183.0) internal successors, (3477), 19 states have internal predecessors, (3477), 0 states have call successors, (0), 0 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 14:42:34,877 INFO L185 Difference]: Start difference. First operand has 287 places, 1376 transitions, 39255 flow. Second operand 18 states and 1917 transitions. [2021-04-28 14:42:34,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 1462 transitions, 45459 flow [2021-04-28 14:42:39,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 1462 transitions, 44896 flow, removed 30 selfloop flow, removed 12 redundant places. [2021-04-28 14:42:39,308 INFO L241 Difference]: Finished difference. Result has 296 places, 1427 transitions, 41710 flow [2021-04-28 14:42:39,309 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=38756, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=263, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=41710, PETRI_PLACES=296, PETRI_TRANSITIONS=1427} [2021-04-28 14:42:39,309 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 222 predicate places. [2021-04-28 14:42:39,309 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:42:39,309 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 296 places, 1427 transitions, 41710 flow [2021-04-28 14:42:39,309 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 296 places, 1427 transitions, 41710 flow [2021-04-28 14:42:39,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 296 places, 1427 transitions, 41710 flow [2021-04-28 14:42:41,589 INFO L129 PetriNetUnfolder]: 3770/8390 cut-off events. [2021-04-28 14:42:41,589 INFO L130 PetriNetUnfolder]: For 109888/109912 co-relation queries the response was YES. [2021-04-28 14:42:41,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94173 conditions, 8390 events. 3770/8390 cut-off events. For 109888/109912 co-relation queries the response was YES. Maximal size of possible extension queue 1411. Compared 88478 event pairs, 0 based on Foata normal form. 0/2580 useless extension candidates. Maximal degree in co-relation 94064. Up to 4305 conditions per place. [2021-04-28 14:42:41,843 INFO L146 LiptonReduction]: Number of co-enabled transitions 14646 [2021-04-28 14:42:42,471 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:42:42,471 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:42:42,471 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3162 [2021-04-28 14:42:42,473 INFO L480 AbstractCegarLoop]: Abstraction has has 296 places, 1427 transitions, 41710 flow [2021-04-28 14:42:42,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 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 14:42:42,474 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:42:42,474 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:42:42,687 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:42:42,688 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:42:42,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:42:42,689 INFO L82 PathProgramCache]: Analyzing trace with hash -700566773, now seen corresponding path program 2 times [2021-04-28 14:42:42,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:42:42,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490365732] [2021-04-28 14:42:42,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:42:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:42:42,715 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:42:42,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,721 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:42:42,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:42,729 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:42:42,730 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:42:42,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:42,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:42,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:42,793 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:42:42,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,809 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:42,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490365732] [2021-04-28 14:42:42,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9792007] [2021-04-28 14:42:42,809 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:42:42,875 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:42:42,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:42:42,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:42:42,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:42:42,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:42,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:42,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:42,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:42,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:42,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:42,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:42,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:42,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:42,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:42:42,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:42:42,993 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:42:42,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:42:42,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:42,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:42:43,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:43,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:43,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:43,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:43,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:43,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:43,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:42:43,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:42:43,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:43,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:43,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:43,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:43,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:43,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:43,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:43,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:43,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:43,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:43,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:43,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:43,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:43,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:43,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,072 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-04-28 14:42:43,073 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-04-28 14:42:43,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:43,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:43,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:42:43,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 14:42:43,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:43,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:42:43,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 14:42:43,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:43,109 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:42:43,110 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:42:43,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:43,129 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:43,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:42:43,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-04-28 14:42:43,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289797700] [2021-04-28 14:42:43,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-28 14:42:43,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:42:43,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-28 14:42:43,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-04-28 14:42:43,132 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:42:43,134 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 1427 transitions, 41710 flow. Second operand has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 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 14:42:43,134 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:42:43,134 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:42:43,134 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:42:48,349 INFO L129 PetriNetUnfolder]: 3850/8598 cut-off events. [2021-04-28 14:42:48,350 INFO L130 PetriNetUnfolder]: For 128029/128083 co-relation queries the response was YES. [2021-04-28 14:42:48,410 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102132 conditions, 8598 events. 3850/8598 cut-off events. For 128029/128083 co-relation queries the response was YES. Maximal size of possible extension queue 1400. Compared 89782 event pairs, 0 based on Foata normal form. 22/2650 useless extension candidates. Maximal degree in co-relation 102021. Up to 5633 conditions per place. [2021-04-28 14:42:48,465 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1244 selfloop transitions, 295 changer transitions 12/1571 dead transitions. [2021-04-28 14:42:48,465 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 1571 transitions, 47588 flow [2021-04-28 14:42:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-04-28 14:42:48,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-04-28 14:42:48,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1683 transitions. [2021-04-28 14:42:48,467 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5747950819672131 [2021-04-28 14:42:48,467 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1683 transitions. [2021-04-28 14:42:48,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1683 transitions. [2021-04-28 14:42:48,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:42:48,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1683 transitions. [2021-04-28 14:42:48,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 105.1875) internal successors, (1683), 16 states have internal predecessors, (1683), 0 states have call successors, (0), 0 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 14:42:48,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 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 14:42:48,471 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 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 14:42:48,471 INFO L185 Difference]: Start difference. First operand has 296 places, 1427 transitions, 41710 flow. Second operand 16 states and 1683 transitions. [2021-04-28 14:42:48,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 1571 transitions, 47588 flow [2021-04-28 14:42:54,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 1571 transitions, 45782 flow, removed 827 selfloop flow, removed 10 redundant places. [2021-04-28 14:42:54,057 INFO L241 Difference]: Finished difference. Result has 304 places, 1451 transitions, 41318 flow [2021-04-28 14:42:54,058 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=39904, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=259, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=41318, PETRI_PLACES=304, PETRI_TRANSITIONS=1451} [2021-04-28 14:42:54,059 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 230 predicate places. [2021-04-28 14:42:54,059 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:42:54,059 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 304 places, 1451 transitions, 41318 flow [2021-04-28 14:42:54,059 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 304 places, 1451 transitions, 41318 flow [2021-04-28 14:42:54,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 304 places, 1451 transitions, 41318 flow [2021-04-28 14:42:56,265 INFO L129 PetriNetUnfolder]: 3802/8510 cut-off events. [2021-04-28 14:42:56,265 INFO L130 PetriNetUnfolder]: For 121071/121107 co-relation queries the response was YES. [2021-04-28 14:42:56,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94321 conditions, 8510 events. 3802/8510 cut-off events. For 121071/121107 co-relation queries the response was YES. Maximal size of possible extension queue 1468. Compared 90511 event pairs, 0 based on Foata normal form. 0/2619 useless extension candidates. Maximal degree in co-relation 94208. Up to 4220 conditions per place. [2021-04-28 14:42:56,564 INFO L146 LiptonReduction]: Number of co-enabled transitions 14870 [2021-04-28 14:42:57,157 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:42:57,157 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:42:57,157 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3098 [2021-04-28 14:42:57,158 INFO L480 AbstractCegarLoop]: Abstraction has has 304 places, 1451 transitions, 41318 flow [2021-04-28 14:42:57,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 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 14:42:57,158 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:42:57,158 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:42:57,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-04-28 14:42:57,359 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:42:57,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:42:57,360 INFO L82 PathProgramCache]: Analyzing trace with hash -891497994, now seen corresponding path program 3 times [2021-04-28 14:42:57,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:42:57,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718955951] [2021-04-28 14:42:57,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:42:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:42:57,384 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:42:57,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:57,390 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:42:57,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:57,397 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:42:57,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:57,405 INFO L142 QuantifierPusher]: treesize reduction 13, result has 45.8 percent of original size [2021-04-28 14:42:57,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:57,415 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-04-28 14:42:57,415 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-04-28 14:42:57,433 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:42:57,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:57,446 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:42:57,447 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:42:57,466 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 14:42:57,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718955951] [2021-04-28 14:42:57,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742871661] [2021-04-28 14:42:57,466 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:42:57,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-04-28 14:42:57,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:42:57,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-28 14:42:57,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:42:57,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:57,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:57,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:57,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:57,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:57,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:57,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:57,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:57,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:57,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:57,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:57,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:57,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:57,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:57,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:57,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:57,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:57,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:57,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:57,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:57,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:57,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:57,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:57,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:57,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:57,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:57,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:57,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:57,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:57,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:57,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:57,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:57,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:57,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:57,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:57,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:57,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:57,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:57,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:57,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:57,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:57,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:57,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:57,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:57,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:57,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:57,578 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-04-28 14:42:57,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:42:57,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:42:57,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:57,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:57,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:57,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:57,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:57,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:57,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:57,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:57,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:42:57,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:57,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:57,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:57,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:57,613 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 14:42:57,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:42:57,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-04-28 14:42:57,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97698285] [2021-04-28 14:42:57,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-28 14:42:57,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:42:57,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-28 14:42:57,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-04-28 14:42:57,616 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:42:57,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 1451 transitions, 41318 flow. Second operand has 11 states, 11 states have (on average 100.0909090909091) internal successors, (1101), 11 states have internal predecessors, (1101), 0 states have call successors, (0), 0 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 14:42:57,617 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:42:57,617 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:42:57,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:43:02,264 INFO L129 PetriNetUnfolder]: 3854/8694 cut-off events. [2021-04-28 14:43:02,264 INFO L130 PetriNetUnfolder]: For 134752/134818 co-relation queries the response was YES. [2021-04-28 14:43:02,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102012 conditions, 8694 events. 3854/8694 cut-off events. For 134752/134818 co-relation queries the response was YES. Maximal size of possible extension queue 1432. Compared 91330 event pairs, 0 based on Foata normal form. 22/2686 useless extension candidates. Maximal degree in co-relation 101897. Up to 5760 conditions per place. [2021-04-28 14:43:02,385 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1265 selfloop transitions, 199 changer transitions 12/1496 dead transitions. [2021-04-28 14:43:02,385 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 1496 transitions, 45447 flow [2021-04-28 14:43:02,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-28 14:43:02,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-04-28 14:43:02,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1272 transitions. [2021-04-28 14:43:02,388 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5792349726775956 [2021-04-28 14:43:02,388 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1272 transitions. [2021-04-28 14:43:02,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1272 transitions. [2021-04-28 14:43:02,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:43:02,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1272 transitions. [2021-04-28 14:43:02,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:02,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 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 14:43:02,392 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 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 14:43:02,392 INFO L185 Difference]: Start difference. First operand has 304 places, 1451 transitions, 41318 flow. Second operand 12 states and 1272 transitions. [2021-04-28 14:43:02,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 1496 transitions, 45447 flow [2021-04-28 14:43:06,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 1496 transitions, 45137 flow, removed 4 selfloop flow, removed 12 redundant places. [2021-04-28 14:43:06,612 INFO L241 Difference]: Finished difference. Result has 304 places, 1452 transitions, 41485 flow [2021-04-28 14:43:06,614 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=41008, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=41485, PETRI_PLACES=304, PETRI_TRANSITIONS=1452} [2021-04-28 14:43:06,614 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 230 predicate places. [2021-04-28 14:43:06,614 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:43:06,614 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 304 places, 1452 transitions, 41485 flow [2021-04-28 14:43:06,614 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 304 places, 1452 transitions, 41485 flow [2021-04-28 14:43:06,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 304 places, 1452 transitions, 41485 flow [2021-04-28 14:43:08,859 INFO L129 PetriNetUnfolder]: 3806/8586 cut-off events. [2021-04-28 14:43:08,859 INFO L130 PetriNetUnfolder]: For 125832/125904 co-relation queries the response was YES. [2021-04-28 14:43:08,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94706 conditions, 8586 events. 3806/8586 cut-off events. For 125832/125904 co-relation queries the response was YES. Maximal size of possible extension queue 1436. Compared 91319 event pairs, 0 based on Foata normal form. 0/2649 useless extension candidates. Maximal degree in co-relation 94592. Up to 4240 conditions per place. [2021-04-28 14:43:09,047 INFO L146 LiptonReduction]: Number of co-enabled transitions 14878 [2021-04-28 14:43:09,567 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:43:09,567 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:43:09,567 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2953 [2021-04-28 14:43:09,567 INFO L480 AbstractCegarLoop]: Abstraction has has 304 places, 1452 transitions, 41485 flow [2021-04-28 14:43:09,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 100.0909090909091) internal successors, (1101), 11 states have internal predecessors, (1101), 0 states have call successors, (0), 0 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 14:43:09,568 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:43:09,568 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:43:09,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:43:09,775 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:43:09,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:43:09,776 INFO L82 PathProgramCache]: Analyzing trace with hash 627043525, now seen corresponding path program 1 times [2021-04-28 14:43:09,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:43:09,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157449664] [2021-04-28 14:43:09,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:43:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:43:09,800 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:43:09,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:09,807 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:43:09,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:09,816 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:43:09,817 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:43:09,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:09,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:09,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:09,872 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:43:09,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:09,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:43:09,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157449664] [2021-04-28 14:43:09,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653405320] [2021-04-28 14:43:09,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:43:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:43:09,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:43:09,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:43:09,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:09,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:09,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:09,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:09,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:09,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:09,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:09,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:09,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:09,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:09,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:09,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:09,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:09,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:09,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:09,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:09,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:09,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:09,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:09,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:09,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:10,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:10,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:10,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:10,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:10,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:10,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:10,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:10,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:10,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:43:10,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:43:10,012 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:43:10,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:43:10,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:43:10,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:43:10,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:43:10,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:43:10,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:43:10,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:10,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:10,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:10,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:10,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:10,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:10,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:43:10,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:43:10,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:10,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:10,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:10,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:10,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:10,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:10,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:43:10,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:43:10,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:10,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:10,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:10,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:10,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:10,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:10,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:43:10,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:43:10,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:10,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:10,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:10,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:10,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:10,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:10,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:10,129 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:43:10,130 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:43:10,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:10,151 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:43:10,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:43:10,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-04-28 14:43:10,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326587861] [2021-04-28 14:43:10,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-28 14:43:10,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:43:10,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-28 14:43:10,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2021-04-28 14:43:10,155 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:43:10,157 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 1452 transitions, 41485 flow. Second operand has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 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 14:43:10,157 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:43:10,157 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:43:10,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:43:15,199 INFO L129 PetriNetUnfolder]: 3854/8743 cut-off events. [2021-04-28 14:43:15,199 INFO L130 PetriNetUnfolder]: For 150586/150652 co-relation queries the response was YES. [2021-04-28 14:43:15,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102134 conditions, 8743 events. 3854/8743 cut-off events. For 150586/150652 co-relation queries the response was YES. Maximal size of possible extension queue 1424. Compared 92386 event pairs, 0 based on Foata normal form. 22/2709 useless extension candidates. Maximal degree in co-relation 102018. Up to 5681 conditions per place. [2021-04-28 14:43:15,319 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1266 selfloop transitions, 296 changer transitions 6/1588 dead transitions. [2021-04-28 14:43:15,319 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 1588 transitions, 47149 flow [2021-04-28 14:43:15,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-04-28 14:43:15,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-04-28 14:43:15,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1683 transitions. [2021-04-28 14:43:15,321 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5747950819672131 [2021-04-28 14:43:15,321 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1683 transitions. [2021-04-28 14:43:15,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1683 transitions. [2021-04-28 14:43:15,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:43:15,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1683 transitions. [2021-04-28 14:43:15,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 105.1875) internal successors, (1683), 16 states have internal predecessors, (1683), 0 states have call successors, (0), 0 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 14:43:15,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 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 14:43:15,327 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 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 14:43:15,327 INFO L185 Difference]: Start difference. First operand has 304 places, 1452 transitions, 41485 flow. Second operand 16 states and 1683 transitions. [2021-04-28 14:43:15,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 1588 transitions, 47149 flow [2021-04-28 14:43:19,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 1588 transitions, 46894 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-04-28 14:43:19,408 INFO L241 Difference]: Finished difference. Result has 314 places, 1470 transitions, 42647 flow [2021-04-28 14:43:19,410 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=41238, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=272, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=42647, PETRI_PLACES=314, PETRI_TRANSITIONS=1470} [2021-04-28 14:43:19,410 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 240 predicate places. [2021-04-28 14:43:19,410 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:43:19,410 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 314 places, 1470 transitions, 42647 flow [2021-04-28 14:43:19,410 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 314 places, 1470 transitions, 42647 flow [2021-04-28 14:43:19,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 314 places, 1470 transitions, 42647 flow [2021-04-28 14:43:21,790 INFO L129 PetriNetUnfolder]: 3830/8633 cut-off events. [2021-04-28 14:43:21,790 INFO L130 PetriNetUnfolder]: For 131682/131718 co-relation queries the response was YES. [2021-04-28 14:43:21,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96638 conditions, 8633 events. 3830/8633 cut-off events. For 131682/131718 co-relation queries the response was YES. Maximal size of possible extension queue 1426. Compared 92305 event pairs, 0 based on Foata normal form. 0/2668 useless extension candidates. Maximal degree in co-relation 96521. Up to 4276 conditions per place. [2021-04-28 14:43:21,947 INFO L146 LiptonReduction]: Number of co-enabled transitions 15046 [2021-04-28 14:43:22,453 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:43:22,453 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:43:22,453 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3043 [2021-04-28 14:43:22,454 INFO L480 AbstractCegarLoop]: Abstraction has has 314 places, 1470 transitions, 42647 flow [2021-04-28 14:43:22,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 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 14:43:22,454 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:43:22,455 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:43:22,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-04-28 14:43:22,664 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:43:22,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:43:22,664 INFO L82 PathProgramCache]: Analyzing trace with hash 63402470, now seen corresponding path program 1 times [2021-04-28 14:43:22,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:43:22,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841219154] [2021-04-28 14:43:22,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:43:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:43:22,684 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:43:22,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:22,689 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:43:22,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:22,698 INFO L142 QuantifierPusher]: treesize reduction 13, result has 45.8 percent of original size [2021-04-28 14:43:22,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:22,709 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-04-28 14:43:22,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:43:22,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:22,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:43:22,755 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:43:22,756 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:43:22,775 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:43:22,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841219154] [2021-04-28 14:43:22,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984817622] [2021-04-28 14:43:22,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:43:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:43:22,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:43:22,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:43:22,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:22,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:22,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:22,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:22,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:22,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:22,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:22,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:22,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:22,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:22,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:22,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:22,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:22,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:22,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:22,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:22,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:22,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:22,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:22,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:22,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:22,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:22,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:22,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:22,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:22,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:22,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:22,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:22,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:22,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:22,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:22,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:22,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:22,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:22,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:22,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:22,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:22,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:22,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:22,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:22,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:22,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:22,921 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-04-28 14:43:22,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:43:22,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:43:22,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:22,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:22,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:43:22,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:22,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:22,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:43:22,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,956 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-04-28 14:43:22,957 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-04-28 14:43:22,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:43:22,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:22,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:22,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 14:43:22,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:22,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:22,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 14:43:22,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:43:22,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:22,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:43:23,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:23,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:23,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:23,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:23,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-04-28 14:43:23,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:23,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:23,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:23,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-04-28 14:43:23,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-04-28 14:43:23,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:23,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:43:23,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:23,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:43:23,060 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:43:23,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:43:23,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-04-28 14:43:23,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529573276] [2021-04-28 14:43:23,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-28 14:43:23,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:43:23,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-28 14:43:23,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2021-04-28 14:43:23,064 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:43:23,065 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 1470 transitions, 42647 flow. Second operand has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 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 14:43:23,066 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:43:23,066 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:43:23,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:43:28,411 INFO L129 PetriNetUnfolder]: 3930/8890 cut-off events. [2021-04-28 14:43:28,411 INFO L130 PetriNetUnfolder]: For 163551/163617 co-relation queries the response was YES. [2021-04-28 14:43:28,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105634 conditions, 8890 events. 3930/8890 cut-off events. For 163551/163617 co-relation queries the response was YES. Maximal size of possible extension queue 1454. Compared 93921 event pairs, 0 based on Foata normal form. 22/2752 useless extension candidates. Maximal degree in co-relation 105515. Up to 5806 conditions per place. [2021-04-28 14:43:28,556 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1265 selfloop transitions, 291 changer transitions 3/1579 dead transitions. [2021-04-28 14:43:28,557 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 1579 transitions, 48280 flow [2021-04-28 14:43:28,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-04-28 14:43:28,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-04-28 14:43:28,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1684 transitions. [2021-04-28 14:43:28,559 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.575136612021858 [2021-04-28 14:43:28,559 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1684 transitions. [2021-04-28 14:43:28,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1684 transitions. [2021-04-28 14:43:28,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:43:28,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1684 transitions. [2021-04-28 14:43:28,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 105.25) internal successors, (1684), 16 states have internal predecessors, (1684), 0 states have call successors, (0), 0 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 14:43:28,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 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 14:43:28,564 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 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 14:43:28,564 INFO L185 Difference]: Start difference. First operand has 314 places, 1470 transitions, 42647 flow. Second operand 16 states and 1684 transitions. [2021-04-28 14:43:28,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 1579 transitions, 48280 flow [2021-04-28 14:43:34,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 1579 transitions, 47840 flow, removed 50 selfloop flow, removed 12 redundant places. [2021-04-28 14:43:34,142 INFO L241 Difference]: Finished difference. Result has 320 places, 1504 transitions, 44422 flow [2021-04-28 14:43:34,143 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=42215, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=254, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=44422, PETRI_PLACES=320, PETRI_TRANSITIONS=1504} [2021-04-28 14:43:34,143 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 246 predicate places. [2021-04-28 14:43:34,143 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:43:34,143 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 320 places, 1504 transitions, 44422 flow [2021-04-28 14:43:34,144 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 320 places, 1504 transitions, 44422 flow [2021-04-28 14:43:34,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 320 places, 1504 transitions, 44422 flow [2021-04-28 14:43:36,520 INFO L129 PetriNetUnfolder]: 3918/8826 cut-off events. [2021-04-28 14:43:36,520 INFO L130 PetriNetUnfolder]: For 138699/138735 co-relation queries the response was YES. [2021-04-28 14:43:36,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99969 conditions, 8826 events. 3918/8826 cut-off events. For 138699/138735 co-relation queries the response was YES. Maximal size of possible extension queue 1512. Compared 94688 event pairs, 0 based on Foata normal form. 0/2719 useless extension candidates. Maximal degree in co-relation 99849. Up to 4376 conditions per place. [2021-04-28 14:43:36,682 INFO L146 LiptonReduction]: Number of co-enabled transitions 15342 [2021-04-28 14:43:37,353 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:43:37,354 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:43:37,354 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3211 [2021-04-28 14:43:37,354 INFO L480 AbstractCegarLoop]: Abstraction has has 320 places, 1504 transitions, 44422 flow [2021-04-28 14:43:37,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 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 14:43:37,354 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:43:37,354 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:43:37,555 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-04-28 14:43:37,555 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:43:37,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:43:37,556 INFO L82 PathProgramCache]: Analyzing trace with hash 145857591, now seen corresponding path program 1 times [2021-04-28 14:43:37,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:43:37,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742229523] [2021-04-28 14:43:37,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:43:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:43:37,584 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:43:37,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:37,589 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:43:37,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:37,596 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:43:37,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,604 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:43:37,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,616 INFO L142 QuantifierPusher]: treesize reduction 13, result has 45.8 percent of original size [2021-04-28 14:43:37,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,629 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-04-28 14:43:37,630 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-04-28 14:43:37,652 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:43:37,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:37,662 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 14:43:37,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742229523] [2021-04-28 14:43:37,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062282070] [2021-04-28 14:43:37,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:43:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:43:37,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:43:37,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:43:37,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:37,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:37,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:37,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:37,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:37,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:37,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:37,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:37,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:37,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:37,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:37,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:37,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:37,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:37,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:37,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:37,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:37,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:37,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:37,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:37,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:37,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:37,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:37,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:37,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:37,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:37,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:43:37,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:37,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:37,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:43:37,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:37,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:37,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:43:37,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:37,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:37,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:43:37,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:37,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:37,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:37,844 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-04-28 14:43:37,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:43:37,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:43:37,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:37,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:37,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:37,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:37,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:37,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:37,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:43:37,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:37,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:37,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:43:37,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:37,890 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:43:37,890 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:43:37,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:37,899 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 14:43:37,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:43:37,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-04-28 14:43:37,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147342480] [2021-04-28 14:43:37,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-28 14:43:37,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:43:37,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-28 14:43:37,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-04-28 14:43:37,902 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:43:37,903 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 1504 transitions, 44422 flow. Second operand has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:37,903 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:43:37,903 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:43:37,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:43:43,186 INFO L129 PetriNetUnfolder]: 3934/8921 cut-off events. [2021-04-28 14:43:43,186 INFO L130 PetriNetUnfolder]: For 174907/174973 co-relation queries the response was YES. [2021-04-28 14:43:43,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107019 conditions, 8921 events. 3934/8921 cut-off events. For 174907/174973 co-relation queries the response was YES. Maximal size of possible extension queue 1471. Compared 94493 event pairs, 0 based on Foata normal form. 22/2762 useless extension candidates. Maximal degree in co-relation 106897. Up to 5880 conditions per place. [2021-04-28 14:43:43,319 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1291 selfloop transitions, 234 changer transitions 3/1548 dead transitions. [2021-04-28 14:43:43,319 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 1548 transitions, 48450 flow [2021-04-28 14:43:43,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-28 14:43:43,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-04-28 14:43:43,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1380 transitions. [2021-04-28 14:43:43,321 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5800756620428752 [2021-04-28 14:43:43,321 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1380 transitions. [2021-04-28 14:43:43,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1380 transitions. [2021-04-28 14:43:43,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:43:43,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1380 transitions. [2021-04-28 14:43:43,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 106.15384615384616) internal successors, (1380), 13 states have internal predecessors, (1380), 0 states have call successors, (0), 0 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 14:43:43,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 183.0) internal successors, (2562), 14 states have internal predecessors, (2562), 0 states have call successors, (0), 0 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 14:43:43,326 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 183.0) internal successors, (2562), 14 states have internal predecessors, (2562), 0 states have call successors, (0), 0 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 14:43:43,326 INFO L185 Difference]: Start difference. First operand has 320 places, 1504 transitions, 44422 flow. Second operand 13 states and 1380 transitions. [2021-04-28 14:43:43,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 1548 transitions, 48450 flow [2021-04-28 14:43:48,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 1548 transitions, 48077 flow, removed 57 selfloop flow, removed 9 redundant places. [2021-04-28 14:43:48,174 INFO L241 Difference]: Finished difference. Result has 324 places, 1505 transitions, 44878 flow [2021-04-28 14:43:48,175 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=44049, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=44878, PETRI_PLACES=324, PETRI_TRANSITIONS=1505} [2021-04-28 14:43:48,175 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 250 predicate places. [2021-04-28 14:43:48,175 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:43:48,175 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 324 places, 1505 transitions, 44878 flow [2021-04-28 14:43:48,176 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 324 places, 1505 transitions, 44878 flow [2021-04-28 14:43:48,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 324 places, 1505 transitions, 44878 flow [2021-04-28 14:43:50,435 INFO L129 PetriNetUnfolder]: 3922/8834 cut-off events. [2021-04-28 14:43:50,435 INFO L130 PetriNetUnfolder]: For 147822/147894 co-relation queries the response was YES. [2021-04-28 14:43:50,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100972 conditions, 8834 events. 3922/8834 cut-off events. For 147822/147894 co-relation queries the response was YES. Maximal size of possible extension queue 1543. Compared 94398 event pairs, 0 based on Foata normal form. 0/2722 useless extension candidates. Maximal degree in co-relation 100851. Up to 4368 conditions per place. [2021-04-28 14:43:50,612 INFO L146 LiptonReduction]: Number of co-enabled transitions 15350 [2021-04-28 14:43:51,211 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:43:51,211 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:43:51,211 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3036 [2021-04-28 14:43:51,212 INFO L480 AbstractCegarLoop]: Abstraction has has 324 places, 1505 transitions, 44878 flow [2021-04-28 14:43:51,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:51,212 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:43:51,212 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:43:51,413 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-04-28 14:43:51,413 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:43:51,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:43:51,414 INFO L82 PathProgramCache]: Analyzing trace with hash -536406819, now seen corresponding path program 1 times [2021-04-28 14:43:51,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:43:51,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884138528] [2021-04-28 14:43:51,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:43:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:43:51,439 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:43:51,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:51,447 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:43:51,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:51,454 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:43:51,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,463 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:43:51,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,472 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-04-28 14:43:51,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:51,483 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-04-28 14:43:51,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:51,494 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:43:51,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:51,504 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 14:43:51,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884138528] [2021-04-28 14:43:51,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290840609] [2021-04-28 14:43:51,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:43:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:43:51,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:43:51,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:43:51,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:51,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:51,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:51,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:51,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:51,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:51,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:51,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:51,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:51,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:51,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:51,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:51,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:51,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:51,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:51,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:51,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:51,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:51,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:51,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:51,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:51,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:51,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:51,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:51,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:51,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:51,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:43:51,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:51,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:51,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:43:51,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,645 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-04-28 14:43:51,645 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-04-28 14:43:51,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:43:51,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:51,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:43:51,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-04-28 14:43:51,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:51,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:43:51,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-04-28 14:43:51,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,690 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size 20 [2021-04-28 14:43:51,691 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size [2021-04-28 14:43:51,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:43:51,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:51,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-04-28 14:43:51,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-04-28 14:43:51,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:51,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-04-28 14:43:51,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-04-28 14:43:51,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,723 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size 21 [2021-04-28 14:43:51,724 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size [2021-04-28 14:43:51,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:43:51,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:43:51,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:51,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:43:51,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-04-28 14:43:51,762 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-04-28 14:43:51,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:51,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,766 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-28 14:43:51,769 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:51,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,773 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.6 percent of original size 19 [2021-04-28 14:43:51,774 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.6 percent of original size 19 [2021-04-28 14:43:51,775 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-04-28 14:43:51,776 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:51,777 INFO L142 QuantifierPusher]: treesize reduction -1, result has 103.0 percent of original size [2021-04-28 14:43:51,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:51,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:43:51,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:51,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:43:51,790 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 14:43:51,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:43:51,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-04-28 14:43:51,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878426516] [2021-04-28 14:43:51,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-28 14:43:51,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:43:51,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-28 14:43:51,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-04-28 14:43:51,793 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:43:51,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 1505 transitions, 44878 flow. Second operand has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:51,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:43:51,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:43:51,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:43:58,087 INFO L129 PetriNetUnfolder]: 4386/9911 cut-off events. [2021-04-28 14:43:58,088 INFO L130 PetriNetUnfolder]: For 255193/255259 co-relation queries the response was YES. [2021-04-28 14:43:58,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120540 conditions, 9911 events. 4386/9911 cut-off events. For 255193/255259 co-relation queries the response was YES. Maximal size of possible extension queue 1561. Compared 105957 event pairs, 0 based on Foata normal form. 54/3104 useless extension candidates. Maximal degree in co-relation 120417. Up to 5696 conditions per place. [2021-04-28 14:43:58,228 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1033 selfloop transitions, 633 changer transitions 0/1686 dead transitions. [2021-04-28 14:43:58,228 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 1686 transitions, 53714 flow [2021-04-28 14:43:58,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-28 14:43:58,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-04-28 14:43:58,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2236 transitions. [2021-04-28 14:43:58,231 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5818371064272704 [2021-04-28 14:43:58,231 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2236 transitions. [2021-04-28 14:43:58,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2236 transitions. [2021-04-28 14:43:58,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:43:58,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2236 transitions. [2021-04-28 14:43:58,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 106.47619047619048) internal successors, (2236), 21 states have internal predecessors, (2236), 0 states have call successors, (0), 0 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 14:43:58,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 183.0) internal successors, (4026), 22 states have internal predecessors, (4026), 0 states have call successors, (0), 0 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 14:43:58,238 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 183.0) internal successors, (4026), 22 states have internal predecessors, (4026), 0 states have call successors, (0), 0 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 14:43:58,238 INFO L185 Difference]: Start difference. First operand has 324 places, 1505 transitions, 44878 flow. Second operand 21 states and 2236 transitions. [2021-04-28 14:43:58,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 1686 transitions, 53714 flow [2021-04-28 14:44:08,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 1686 transitions, 53403 flow, removed 0 selfloop flow, removed 10 redundant places. [2021-04-28 14:44:08,448 INFO L241 Difference]: Finished difference. Result has 340 places, 1666 transitions, 51822 flow [2021-04-28 14:44:08,449 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=44591, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=489, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=949, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=51822, PETRI_PLACES=340, PETRI_TRANSITIONS=1666} [2021-04-28 14:44:08,450 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 266 predicate places. [2021-04-28 14:44:08,450 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:44:08,450 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 340 places, 1666 transitions, 51822 flow [2021-04-28 14:44:08,450 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 340 places, 1666 transitions, 51822 flow [2021-04-28 14:44:08,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 340 places, 1666 transitions, 51822 flow [2021-04-28 14:44:11,443 INFO L129 PetriNetUnfolder]: 4386/9888 cut-off events. [2021-04-28 14:44:11,443 INFO L130 PetriNetUnfolder]: For 154473/154509 co-relation queries the response was YES. [2021-04-28 14:44:11,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118070 conditions, 9888 events. 4386/9888 cut-off events. For 154473/154509 co-relation queries the response was YES. Maximal size of possible extension queue 1599. Compared 107568 event pairs, 0 based on Foata normal form. 0/3045 useless extension candidates. Maximal degree in co-relation 117943. Up to 5088 conditions per place. [2021-04-28 14:44:11,635 INFO L146 LiptonReduction]: Number of co-enabled transitions 16888 [2021-04-28 14:44:12,325 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:44:12,325 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:44:12,325 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3875 [2021-04-28 14:44:12,326 INFO L480 AbstractCegarLoop]: Abstraction has has 340 places, 1666 transitions, 51822 flow [2021-04-28 14:44:12,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:44:12,326 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:44:12,326 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:44:12,526 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:44:12,527 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:44:12,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:44:12,528 INFO L82 PathProgramCache]: Analyzing trace with hash -512357794, now seen corresponding path program 3 times [2021-04-28 14:44:12,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:44:12,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35709484] [2021-04-28 14:44:12,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:44:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:44:12,547 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:44:12,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,553 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:44:12,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:12,561 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:44:12,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:44:12,579 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-04-28 14:44:12,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:12,589 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-04-28 14:44:12,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,603 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-04-28 14:44:12,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,614 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:44:12,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35709484] [2021-04-28 14:44:12,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490267613] [2021-04-28 14:44:12,614 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 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:44:12,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-04-28 14:44:12,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:44:12,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:44:12,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:44:12,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:12,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:44:12,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:12,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:44:12,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:12,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:12,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:44:12,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:44:12,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:44:12,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:44:12,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:44:12,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:44:12,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,763 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-04-28 14:44:12,763 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-04-28 14:44:12,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:44:12,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:44:12,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-04-28 14:44:12,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:44:12,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-04-28 14:44:12,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,790 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size 20 [2021-04-28 14:44:12,790 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size [2021-04-28 14:44:12,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:44:12,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-28 14:44:12,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-04-28 14:44:12,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-28 14:44:12,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-04-28 14:44:12,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,827 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.1 percent of original size 51 [2021-04-28 14:44:12,828 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.1 percent of original size [2021-04-28 14:44:12,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-04-28 14:44:12,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-04-28 14:44:12,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-28 14:44:12,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-28 14:44:12,869 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-04-28 14:44:12,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,873 INFO L147 QuantifierPusher]: treesize reduction -4, result has 113.3 percent of original size 34 [2021-04-28 14:44:12,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,875 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.0 percent of original size [2021-04-28 14:44:12,875 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-04-28 14:44:12,876 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,879 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.7 percent of original size 60 [2021-04-28 14:44:12,880 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.7 percent of original size 60 [2021-04-28 14:44:12,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,889 INFO L147 QuantifierPusher]: treesize reduction -2, result has 108.7 percent of original size 25 [2021-04-28 14:44:12,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,892 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-04-28 14:44:12,892 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,922 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:44:12,984 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:44:13,374 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:44:14,790 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:44:17,300 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:44:20,531 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:44:24,195 INFO L842 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:44:26,930 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 1653 DAG size of output: 1639 [2021-04-28 14:44:26,973 INFO L147 QuantifierPusher]: treesize reduction -532, result has 101.0 percent of original size 54633 [2021-04-28 14:44:27,378 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 1653 DAG size of output: 1639 [2021-04-28 14:44:27,418 INFO L147 QuantifierPusher]: treesize reduction -532, result has 101.0 percent of original size 54633 [2021-04-28 14:44:27,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:27,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:27,666 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size 22 [2021-04-28 14:44:27,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:27,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:27,772 INFO L147 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size 23 [2021-04-28 14:44:27,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:28,084 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 1653 DAG size of output: 1653 [2021-04-28 14:44:28,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:28,188 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-04-28 14:44:28,192 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:28,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:28,500 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 1653 DAG size of output: 1653 [2021-04-28 14:44:28,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:13,066 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:46:48,623 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:48:42,234 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:50:49,785 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:53:16,489 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown