/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_bench_longest-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 02:47:14,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 02:47:14,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 02:47:14,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 02:47:14,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 02:47:14,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 02:47:14,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 02:47:14,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 02:47:14,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 02:47:14,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 02:47:14,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 02:47:14,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 02:47:14,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 02:47:14,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 02:47:14,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 02:47:14,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 02:47:14,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 02:47:14,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 02:47:14,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 02:47:14,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 02:47:14,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 02:47:14,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 02:47:14,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 02:47:14,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 02:47:14,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 02:47:14,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 02:47:14,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 02:47:14,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 02:47:14,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 02:47:14,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 02:47:14,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 02:47:14,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 02:47:14,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 02:47:14,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 02:47:14,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 02:47:14,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 02:47:14,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 02:47:14,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 02:47:14,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 02:47:14,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 02:47:14,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 02:47:14,644 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-RepeatedVariableLbe.epf [2021-03-25 02:47:14,669 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 02:47:14,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 02:47:14,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 02:47:14,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 02:47:14,673 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 02:47:14,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 02:47:14,673 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 02:47:14,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 02:47:14,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 02:47:14,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 02:47:14,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 02:47:14,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 02:47:14,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 02:47:14,674 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 02:47:14,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 02:47:14,675 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 02:47:14,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 02:47:14,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 02:47:14,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 02:47:14,675 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 02:47:14,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 02:47:14,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 02:47:14,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 02:47:14,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 02:47:14,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 02:47:14,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 02:47:14,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 02:47:14,676 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 02:47:14,676 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 02:47:14,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 02:47:14,676 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 02:47:14,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 02:47:15,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 02:47:15,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 02:47:15,013 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 02:47:15,014 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 02:47:15,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_bench_longest-2.i [2021-03-25 02:47:15,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9905bad27/601b16a9aea941a5bf62dc5ae70bc133/FLAG074341f48 [2021-03-25 02:47:15,603 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 02:47:15,603 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longest-2.i [2021-03-25 02:47:15,620 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9905bad27/601b16a9aea941a5bf62dc5ae70bc133/FLAG074341f48 [2021-03-25 02:47:16,071 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9905bad27/601b16a9aea941a5bf62dc5ae70bc133 [2021-03-25 02:47:16,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 02:47:16,074 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 02:47:16,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 02:47:16,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 02:47:16,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 02:47:16,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:47:16" (1/1) ... [2021-03-25 02:47:16,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f9dadb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:16, skipping insertion in model container [2021-03-25 02:47:16,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:47:16" (1/1) ... [2021-03-25 02:47:16,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 02:47:16,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 02:47:16,427 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longest-2.i[30286,30299] [2021-03-25 02:47:16,444 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longest-2.i[31040,31053] [2021-03-25 02:47:16,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 02:47:16,455 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 02:47:16,493 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longest-2.i[30286,30299] [2021-03-25 02:47:16,503 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longest-2.i[31040,31053] [2021-03-25 02:47:16,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 02:47:16,556 INFO L208 MainTranslator]: Completed translation [2021-03-25 02:47:16,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:16 WrapperNode [2021-03-25 02:47:16,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 02:47:16,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 02:47:16,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 02:47:16,558 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 02:47:16,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:16" (1/1) ... [2021-03-25 02:47:16,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:16" (1/1) ... [2021-03-25 02:47:16,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 02:47:16,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 02:47:16,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 02:47:16,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 02:47:16,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:16" (1/1) ... [2021-03-25 02:47:16,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:16" (1/1) ... [2021-03-25 02:47:16,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:16" (1/1) ... [2021-03-25 02:47:16,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:16" (1/1) ... [2021-03-25 02:47:16,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:16" (1/1) ... [2021-03-25 02:47:16,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:16" (1/1) ... [2021-03-25 02:47:16,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:16" (1/1) ... [2021-03-25 02:47:16,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 02:47:16,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 02:47:16,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 02:47:16,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 02:47:16,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 02:47:16,719 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-03-25 02:47:16,719 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-03-25 02:47:16,720 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-03-25 02:47:16,720 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-03-25 02:47:16,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 02:47:16,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 02:47:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 02:47:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 02:47:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 02:47:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 02:47:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 02:47:16,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 02:47:16,724 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 02:47:17,099 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 02:47:17,100 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-03-25 02:47:17,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:47:17 BoogieIcfgContainer [2021-03-25 02:47:17,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 02:47:17,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 02:47:17,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 02:47:17,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 02:47:17,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 02:47:16" (1/3) ... [2021-03-25 02:47:17,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50be015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:47:17, skipping insertion in model container [2021-03-25 02:47:17,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:16" (2/3) ... [2021-03-25 02:47:17,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50be015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:47:17, skipping insertion in model container [2021-03-25 02:47:17,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:47:17" (3/3) ... [2021-03-25 02:47:17,108 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_bench_longest-2.i [2021-03-25 02:47:17,112 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 02:47:17,115 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 02:47:17,116 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 02:47:17,147 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,147 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,147 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,148 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,149 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,149 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,149 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,150 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,150 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,150 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,150 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,151 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,151 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,151 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,152 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,152 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,153 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,153 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,153 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,153 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,154 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,154 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,154 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,154 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,155 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,155 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,155 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,155 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,155 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,155 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,156 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,156 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,156 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,157 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,157 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,157 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,157 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,157 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,157 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,158 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,158 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,158 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,158 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,158 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,158 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,159 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,159 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,159 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,159 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,159 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,161 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,161 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,161 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,161 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,161 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,162 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,162 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,162 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,164 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,164 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,166 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,166 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,167 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,167 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,167 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,167 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,172 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,172 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,172 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,172 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,172 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,172 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 02:47:17,174 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 02:47:17,190 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-25 02:47:17,219 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 02:47:17,220 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 02:47:17,220 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 02:47:17,220 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 02:47:17,220 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 02:47:17,220 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 02:47:17,220 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 02:47:17,220 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 02:47:17,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 134 flow [2021-03-25 02:47:17,278 INFO L129 PetriNetUnfolder]: 5/60 cut-off events. [2021-03-25 02:47:17,278 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 02:47:17,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 60 events. 5/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 91 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-25 02:47:17,289 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 62 transitions, 134 flow [2021-03-25 02:47:17,295 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 60 transitions, 126 flow [2021-03-25 02:47:17,297 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:17,304 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 60 transitions, 126 flow [2021-03-25 02:47:17,307 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 60 transitions, 126 flow [2021-03-25 02:47:17,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 60 transitions, 126 flow [2021-03-25 02:47:17,332 INFO L129 PetriNetUnfolder]: 5/60 cut-off events. [2021-03-25 02:47:17,332 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 02:47:17,333 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 60 events. 5/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 91 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-25 02:47:17,335 INFO L142 LiptonReduction]: Number of co-enabled transitions 1080 [2021-03-25 02:47:18,877 INFO L154 LiptonReduction]: Checked pairs total: 529 [2021-03-25 02:47:18,877 INFO L156 LiptonReduction]: Total number of compositions: 36 [2021-03-25 02:47:18,879 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1583 [2021-03-25 02:47:18,886 INFO L129 PetriNetUnfolder]: 1/17 cut-off events. [2021-03-25 02:47:18,886 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 02:47:18,886 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:18,887 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:18,887 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:18,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:18,891 INFO L82 PathProgramCache]: Analyzing trace with hash 616202235, now seen corresponding path program 1 times [2021-03-25 02:47:18,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:18,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022024695] [2021-03-25 02:47:18,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:19,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:19,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:19,070 INFO L142 QuantifierPusher]: treesize reduction 12, result has 36.8 percent of original size [2021-03-25 02:47:19,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:19,079 INFO L142 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-03-25 02:47:19,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:19,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:19,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022024695] [2021-03-25 02:47:19,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:19,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 02:47:19,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536569063] [2021-03-25 02:47:19,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 02:47:19,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:19,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 02:47:19,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 02:47:19,107 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 98 [2021-03-25 02:47:19,109 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:19,109 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:19,109 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 98 [2021-03-25 02:47:19,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:19,176 INFO L129 PetriNetUnfolder]: 40/129 cut-off events. [2021-03-25 02:47:19,176 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 02:47:19,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 129 events. 40/129 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 498 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 188. Up to 51 conditions per place. [2021-03-25 02:47:19,179 INFO L132 encePairwiseOnDemand]: 93/98 looper letters, 5 selfloop transitions, 7 changer transitions 8/37 dead transitions. [2021-03-25 02:47:19,179 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 37 transitions, 116 flow [2021-03-25 02:47:19,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 02:47:19,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 02:47:19,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 385 transitions. [2021-03-25 02:47:19,200 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7857142857142857 [2021-03-25 02:47:19,200 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 385 transitions. [2021-03-25 02:47:19,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 385 transitions. [2021-03-25 02:47:19,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:19,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 385 transitions. [2021-03-25 02:47:19,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:19,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:19,219 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:19,220 INFO L185 Difference]: Start difference. First operand has 31 places, 26 transitions, 58 flow. Second operand 5 states and 385 transitions. [2021-03-25 02:47:19,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 37 transitions, 116 flow [2021-03-25 02:47:19,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 02:47:19,224 INFO L241 Difference]: Finished difference. Result has 36 places, 28 transitions, 95 flow [2021-03-25 02:47:19,225 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=95, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2021-03-25 02:47:19,226 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2021-03-25 02:47:19,226 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:19,226 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 28 transitions, 95 flow [2021-03-25 02:47:19,227 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 28 transitions, 95 flow [2021-03-25 02:47:19,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 28 transitions, 95 flow [2021-03-25 02:47:19,237 INFO L129 PetriNetUnfolder]: 14/65 cut-off events. [2021-03-25 02:47:19,237 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-03-25 02:47:19,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 65 events. 14/65 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 188 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 106. Up to 16 conditions per place. [2021-03-25 02:47:19,240 INFO L142 LiptonReduction]: Number of co-enabled transitions 252 [2021-03-25 02:47:19,451 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2021-03-25 02:47:19,733 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2021-03-25 02:47:20,298 INFO L154 LiptonReduction]: Checked pairs total: 83 [2021-03-25 02:47:20,298 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-25 02:47:20,299 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1073 [2021-03-25 02:47:20,299 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 83 flow [2021-03-25 02:47:20,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:20,300 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:20,300 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:20,300 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 02:47:20,300 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:20,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:20,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1147891409, now seen corresponding path program 1 times [2021-03-25 02:47:20,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:20,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905339985] [2021-03-25 02:47:20,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:20,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:20,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:20,402 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 02:47:20,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:20,410 INFO L142 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size [2021-03-25 02:47:20,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:20,426 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-25 02:47:20,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:20,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:20,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905339985] [2021-03-25 02:47:20,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:20,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:20,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89821786] [2021-03-25 02:47:20,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 02:47:20,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:20,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 02:47:20,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 02:47:20,435 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 106 [2021-03-25 02:47:20,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:20,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:20,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 106 [2021-03-25 02:47:20,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:20,484 INFO L129 PetriNetUnfolder]: 38/104 cut-off events. [2021-03-25 02:47:20,484 INFO L130 PetriNetUnfolder]: For 87/93 co-relation queries the response was YES. [2021-03-25 02:47:20,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 104 events. 38/104 cut-off events. For 87/93 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 378 event pairs, 2 based on Foata normal form. 8/95 useless extension candidates. Maximal degree in co-relation 262. Up to 54 conditions per place. [2021-03-25 02:47:20,485 INFO L132 encePairwiseOnDemand]: 99/106 looper letters, 5 selfloop transitions, 14 changer transitions 0/30 dead transitions. [2021-03-25 02:47:20,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 30 transitions, 160 flow [2021-03-25 02:47:20,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 02:47:20,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 02:47:20,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 560 transitions. [2021-03-25 02:47:20,493 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7547169811320755 [2021-03-25 02:47:20,493 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 560 transitions. [2021-03-25 02:47:20,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 560 transitions. [2021-03-25 02:47:20,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:20,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 560 transitions. [2021-03-25 02:47:20,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 80.0) internal successors, (560), 7 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:20,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 106.0) internal successors, (848), 8 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:20,497 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 106.0) internal successors, (848), 8 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:20,497 INFO L185 Difference]: Start difference. First operand has 26 places, 22 transitions, 83 flow. Second operand 7 states and 560 transitions. [2021-03-25 02:47:20,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 30 transitions, 160 flow [2021-03-25 02:47:20,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 160 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 02:47:20,499 INFO L241 Difference]: Finished difference. Result has 35 places, 29 transitions, 168 flow [2021-03-25 02:47:20,499 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=168, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2021-03-25 02:47:20,499 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2021-03-25 02:47:20,500 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:20,500 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 29 transitions, 168 flow [2021-03-25 02:47:20,500 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 29 transitions, 168 flow [2021-03-25 02:47:20,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 29 transitions, 168 flow [2021-03-25 02:47:20,508 INFO L129 PetriNetUnfolder]: 26/89 cut-off events. [2021-03-25 02:47:20,508 INFO L130 PetriNetUnfolder]: For 148/148 co-relation queries the response was YES. [2021-03-25 02:47:20,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 89 events. 26/89 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 337 event pairs, 1 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 250. Up to 29 conditions per place. [2021-03-25 02:47:20,510 INFO L142 LiptonReduction]: Number of co-enabled transitions 204 [2021-03-25 02:47:20,580 INFO L154 LiptonReduction]: Checked pairs total: 75 [2021-03-25 02:47:20,580 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 02:47:20,580 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 80 [2021-03-25 02:47:20,581 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 168 flow [2021-03-25 02:47:20,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:20,581 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:20,581 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:20,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 02:47:20,582 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:20,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:20,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1327699939, now seen corresponding path program 1 times [2021-03-25 02:47:20,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:20,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491356052] [2021-03-25 02:47:20,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:20,632 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:20,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:20,639 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-25 02:47:20,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:20,646 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-25 02:47:20,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:20,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:20,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491356052] [2021-03-25 02:47:20,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:20,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 02:47:20,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274326562] [2021-03-25 02:47:20,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 02:47:20,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:20,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 02:47:20,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 02:47:20,658 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 111 [2021-03-25 02:47:20,658 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 29 transitions, 168 flow. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:20,658 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:20,659 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 111 [2021-03-25 02:47:20,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:20,711 INFO L129 PetriNetUnfolder]: 42/113 cut-off events. [2021-03-25 02:47:20,712 INFO L130 PetriNetUnfolder]: For 297/303 co-relation queries the response was YES. [2021-03-25 02:47:20,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 113 events. 42/113 cut-off events. For 297/303 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 447 event pairs, 4 based on Foata normal form. 8/103 useless extension candidates. Maximal degree in co-relation 396. Up to 62 conditions per place. [2021-03-25 02:47:20,713 INFO L132 encePairwiseOnDemand]: 101/111 looper letters, 12 selfloop transitions, 9 changer transitions 0/32 dead transitions. [2021-03-25 02:47:20,713 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 32 transitions, 236 flow [2021-03-25 02:47:20,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 02:47:20,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 02:47:20,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 400 transitions. [2021-03-25 02:47:20,715 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7207207207207207 [2021-03-25 02:47:20,715 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 400 transitions. [2021-03-25 02:47:20,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 400 transitions. [2021-03-25 02:47:20,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:20,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 400 transitions. [2021-03-25 02:47:20,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:20,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 111.0) internal successors, (666), 6 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:20,718 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 111.0) internal successors, (666), 6 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:20,718 INFO L185 Difference]: Start difference. First operand has 35 places, 29 transitions, 168 flow. Second operand 5 states and 400 transitions. [2021-03-25 02:47:20,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 32 transitions, 236 flow [2021-03-25 02:47:20,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 32 transitions, 209 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-03-25 02:47:20,721 INFO L241 Difference]: Finished difference. Result has 38 places, 30 transitions, 178 flow [2021-03-25 02:47:20,722 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=178, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2021-03-25 02:47:20,722 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2021-03-25 02:47:20,722 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:20,722 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 30 transitions, 178 flow [2021-03-25 02:47:20,722 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 30 transitions, 178 flow [2021-03-25 02:47:20,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 30 transitions, 178 flow [2021-03-25 02:47:20,730 INFO L129 PetriNetUnfolder]: 32/105 cut-off events. [2021-03-25 02:47:20,730 INFO L130 PetriNetUnfolder]: For 184/185 co-relation queries the response was YES. [2021-03-25 02:47:20,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 105 events. 32/105 cut-off events. For 184/185 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 423 event pairs, 2 based on Foata normal form. 1/85 useless extension candidates. Maximal degree in co-relation 298. Up to 30 conditions per place. [2021-03-25 02:47:20,732 INFO L142 LiptonReduction]: Number of co-enabled transitions 210 [2021-03-25 02:47:20,835 INFO L154 LiptonReduction]: Checked pairs total: 59 [2021-03-25 02:47:20,835 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 02:47:20,835 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 113 [2021-03-25 02:47:20,837 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 176 flow [2021-03-25 02:47:20,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:20,838 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:20,838 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:20,838 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 02:47:20,838 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:20,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:20,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1427106436, now seen corresponding path program 1 times [2021-03-25 02:47:20,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:20,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022287638] [2021-03-25 02:47:20,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:20,869 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:20,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:20,874 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-25 02:47:20,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:20,881 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:20,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:20,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:20,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022287638] [2021-03-25 02:47:20,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:20,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 02:47:20,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784314719] [2021-03-25 02:47:20,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 02:47:20,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:20,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 02:47:20,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 02:47:20,893 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 116 [2021-03-25 02:47:20,894 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 176 flow. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:20,894 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:20,894 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 116 [2021-03-25 02:47:20,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:20,986 INFO L129 PetriNetUnfolder]: 35/98 cut-off events. [2021-03-25 02:47:20,987 INFO L130 PetriNetUnfolder]: For 259/265 co-relation queries the response was YES. [2021-03-25 02:47:20,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 98 events. 35/98 cut-off events. For 259/265 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 363 event pairs, 0 based on Foata normal form. 8/90 useless extension candidates. Maximal degree in co-relation 340. Up to 47 conditions per place. [2021-03-25 02:47:20,988 INFO L132 encePairwiseOnDemand]: 105/116 looper letters, 12 selfloop transitions, 16 changer transitions 0/38 dead transitions. [2021-03-25 02:47:20,988 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 38 transitions, 299 flow [2021-03-25 02:47:20,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 02:47:20,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 02:47:20,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 561 transitions. [2021-03-25 02:47:20,990 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6908866995073891 [2021-03-25 02:47:20,990 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 561 transitions. [2021-03-25 02:47:20,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 561 transitions. [2021-03-25 02:47:20,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:20,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 561 transitions. [2021-03-25 02:47:20,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 80.14285714285714) internal successors, (561), 7 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:20,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:20,994 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:20,994 INFO L185 Difference]: Start difference. First operand has 37 places, 29 transitions, 176 flow. Second operand 7 states and 561 transitions. [2021-03-25 02:47:20,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 38 transitions, 299 flow [2021-03-25 02:47:20,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 38 transitions, 280 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-25 02:47:20,997 INFO L241 Difference]: Finished difference. Result has 42 places, 36 transitions, 267 flow [2021-03-25 02:47:20,997 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=267, PETRI_PLACES=42, PETRI_TRANSITIONS=36} [2021-03-25 02:47:20,998 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 11 predicate places. [2021-03-25 02:47:20,998 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:20,998 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 36 transitions, 267 flow [2021-03-25 02:47:20,998 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 36 transitions, 267 flow [2021-03-25 02:47:20,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 36 transitions, 267 flow [2021-03-25 02:47:21,005 INFO L129 PetriNetUnfolder]: 34/97 cut-off events. [2021-03-25 02:47:21,006 INFO L130 PetriNetUnfolder]: For 346/347 co-relation queries the response was YES. [2021-03-25 02:47:21,006 INFO L84 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 97 events. 34/97 cut-off events. For 346/347 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 376 event pairs, 0 based on Foata normal form. 1/80 useless extension candidates. Maximal degree in co-relation 347. Up to 28 conditions per place. [2021-03-25 02:47:21,008 INFO L142 LiptonReduction]: Number of co-enabled transitions 230 [2021-03-25 02:47:21,127 INFO L154 LiptonReduction]: Checked pairs total: 69 [2021-03-25 02:47:21,128 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 02:47:21,128 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 130 [2021-03-25 02:47:21,128 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 36 transitions, 267 flow [2021-03-25 02:47:21,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:21,129 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:21,129 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:21,129 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 02:47:21,129 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:21,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:21,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1285636230, now seen corresponding path program 1 times [2021-03-25 02:47:21,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:21,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836408920] [2021-03-25 02:47:21,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:21,192 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 02:47:21,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:21,198 INFO L142 QuantifierPusher]: treesize reduction 6, result has 60.0 percent of original size [2021-03-25 02:47:21,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:21,214 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-03-25 02:47:21,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:21,230 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-25 02:47:21,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:21,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:21,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836408920] [2021-03-25 02:47:21,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992908640] [2021-03-25 02:47:21,237 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 [2021-03-25 02:47:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:21,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 02:47:21,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:21,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:21,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:21,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:21,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:21,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:21,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:21,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:21,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:21,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:21,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:21,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:21,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:21,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:21,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:21,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:21,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:21,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:21,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:21,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:21,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:21,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:21,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:21,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:21,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:21,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:21,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:21,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:21,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:21,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:21,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:21,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:21,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:21,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:21,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:21,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:21,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:21,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:21,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:21,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:21,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:21,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:21,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:21,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:21,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:21,494 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-25 02:47:21,497 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 02:47:21,505 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:21,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:21,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:21,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:21,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:21,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:21,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:21,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-25 02:47:21,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161654706] [2021-03-25 02:47:21,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 02:47:21,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:21,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 02:47:21,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-03-25 02:47:21,536 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 121 [2021-03-25 02:47:21,537 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 36 transitions, 267 flow. Second operand has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:21,537 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:21,537 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 121 [2021-03-25 02:47:21,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:21,713 INFO L129 PetriNetUnfolder]: 46/133 cut-off events. [2021-03-25 02:47:21,715 INFO L130 PetriNetUnfolder]: For 682/690 co-relation queries the response was YES. [2021-03-25 02:47:21,716 INFO L84 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 133 events. 46/133 cut-off events. For 682/690 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 529 event pairs, 0 based on Foata normal form. 9/118 useless extension candidates. Maximal degree in co-relation 556. Up to 59 conditions per place. [2021-03-25 02:47:21,717 INFO L132 encePairwiseOnDemand]: 108/121 looper letters, 13 selfloop transitions, 29 changer transitions 0/52 dead transitions. [2021-03-25 02:47:21,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 52 transitions, 515 flow [2021-03-25 02:47:21,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 02:47:21,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 02:47:21,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 887 transitions. [2021-03-25 02:47:21,720 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6664162283996995 [2021-03-25 02:47:21,720 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 887 transitions. [2021-03-25 02:47:21,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 887 transitions. [2021-03-25 02:47:21,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:21,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 887 transitions. [2021-03-25 02:47:21,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 80.63636363636364) internal successors, (887), 11 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:21,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 121.0) internal successors, (1452), 12 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:21,725 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 121.0) internal successors, (1452), 12 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:21,725 INFO L185 Difference]: Start difference. First operand has 42 places, 36 transitions, 267 flow. Second operand 11 states and 887 transitions. [2021-03-25 02:47:21,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 52 transitions, 515 flow [2021-03-25 02:47:21,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 52 transitions, 480 flow, removed 14 selfloop flow, removed 2 redundant places. [2021-03-25 02:47:21,731 INFO L241 Difference]: Finished difference. Result has 53 places, 52 transitions, 484 flow [2021-03-25 02:47:21,731 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=484, PETRI_PLACES=53, PETRI_TRANSITIONS=52} [2021-03-25 02:47:21,731 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 22 predicate places. [2021-03-25 02:47:21,732 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:21,732 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 52 transitions, 484 flow [2021-03-25 02:47:21,732 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 52 transitions, 484 flow [2021-03-25 02:47:21,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 52 transitions, 484 flow [2021-03-25 02:47:21,744 INFO L129 PetriNetUnfolder]: 46/133 cut-off events. [2021-03-25 02:47:21,745 INFO L130 PetriNetUnfolder]: For 773/773 co-relation queries the response was YES. [2021-03-25 02:47:21,745 INFO L84 FinitePrefix]: Finished finitePrefix Result has 574 conditions, 133 events. 46/133 cut-off events. For 773/773 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 532 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 551. Up to 46 conditions per place. [2021-03-25 02:47:21,749 INFO L142 LiptonReduction]: Number of co-enabled transitions 316 [2021-03-25 02:47:21,986 INFO L154 LiptonReduction]: Checked pairs total: 214 [2021-03-25 02:47:21,986 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-25 02:47:21,986 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 254 [2021-03-25 02:47:21,989 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 51 transitions, 477 flow [2021-03-25 02:47:21,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:21,989 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:21,989 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:22,203 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 02:47:22,204 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:22,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:22,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1327631584, now seen corresponding path program 1 times [2021-03-25 02:47:22,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:22,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176125682] [2021-03-25 02:47:22,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:22,260 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:22,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,271 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-25 02:47:22,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:22,281 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-03-25 02:47:22,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:47:22,293 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:22,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:22,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176125682] [2021-03-25 02:47:22,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079067084] [2021-03-25 02:47:22,304 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 [2021-03-25 02:47:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:22,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 02:47:22,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:22,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:22,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:22,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:22,404 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-25 02:47:22,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:22,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:22,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:22,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:22,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:22,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:22,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:22,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:22,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:22,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:22,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:22,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:22,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:47:22,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:47:22,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:22,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:22,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:22,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:22,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:22,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:22,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:22,459 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-25 02:47:22,461 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-25 02:47:22,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:22,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:22,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:22,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 02:47:22,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709233309] [2021-03-25 02:47:22,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 02:47:22,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:22,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 02:47:22,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-03-25 02:47:22,470 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 130 [2021-03-25 02:47:22,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 51 transitions, 477 flow. Second operand has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:22,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:22,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 130 [2021-03-25 02:47:22,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:22,572 INFO L129 PetriNetUnfolder]: 47/140 cut-off events. [2021-03-25 02:47:22,573 INFO L130 PetriNetUnfolder]: For 1034/1049 co-relation queries the response was YES. [2021-03-25 02:47:22,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 684 conditions, 140 events. 47/140 cut-off events. For 1034/1049 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 596 event pairs, 0 based on Foata normal form. 10/123 useless extension candidates. Maximal degree in co-relation 659. Up to 69 conditions per place. [2021-03-25 02:47:22,574 INFO L132 encePairwiseOnDemand]: 116/130 looper letters, 33 selfloop transitions, 15 changer transitions 0/58 dead transitions. [2021-03-25 02:47:22,574 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 58 transitions, 666 flow [2021-03-25 02:47:22,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 02:47:22,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 02:47:22,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 492 transitions. [2021-03-25 02:47:22,576 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6307692307692307 [2021-03-25 02:47:22,576 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 492 transitions. [2021-03-25 02:47:22,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 492 transitions. [2021-03-25 02:47:22,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:22,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 492 transitions. [2021-03-25 02:47:22,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:22,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:22,580 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:22,580 INFO L185 Difference]: Start difference. First operand has 53 places, 51 transitions, 477 flow. Second operand 6 states and 492 transitions. [2021-03-25 02:47:22,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 58 transitions, 666 flow [2021-03-25 02:47:22,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 58 transitions, 513 flow, removed 64 selfloop flow, removed 6 redundant places. [2021-03-25 02:47:22,585 INFO L241 Difference]: Finished difference. Result has 54 places, 53 transitions, 429 flow [2021-03-25 02:47:22,585 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=429, PETRI_PLACES=54, PETRI_TRANSITIONS=53} [2021-03-25 02:47:22,585 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 23 predicate places. [2021-03-25 02:47:22,585 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:22,585 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 53 transitions, 429 flow [2021-03-25 02:47:22,585 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 53 transitions, 429 flow [2021-03-25 02:47:22,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 53 transitions, 429 flow [2021-03-25 02:47:22,596 INFO L129 PetriNetUnfolder]: 47/140 cut-off events. [2021-03-25 02:47:22,596 INFO L130 PetriNetUnfolder]: For 512/516 co-relation queries the response was YES. [2021-03-25 02:47:22,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 516 conditions, 140 events. 47/140 cut-off events. For 512/516 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 608 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 492. Up to 50 conditions per place. [2021-03-25 02:47:22,598 INFO L142 LiptonReduction]: Number of co-enabled transitions 316 [2021-03-25 02:47:22,785 INFO L154 LiptonReduction]: Checked pairs total: 122 [2021-03-25 02:47:22,785 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-25 02:47:22,785 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 200 [2021-03-25 02:47:22,787 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 440 flow [2021-03-25 02:47:22,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:22,787 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:22,787 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:23,010 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 02:47:23,010 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:23,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:23,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1362032009, now seen corresponding path program 1 times [2021-03-25 02:47:23,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:23,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377712544] [2021-03-25 02:47:23,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:23,053 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:23,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,058 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:47:23,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:23,093 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-03-25 02:47:23,094 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-03-25 02:47:23,107 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:23,108 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:23,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:23,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377712544] [2021-03-25 02:47:23,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:23,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:23,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707439355] [2021-03-25 02:47:23,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 02:47:23,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:23,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 02:47:23,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 02:47:23,120 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 136 [2021-03-25 02:47:23,121 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 440 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:23,121 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:23,121 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 136 [2021-03-25 02:47:23,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:23,220 INFO L129 PetriNetUnfolder]: 50/145 cut-off events. [2021-03-25 02:47:23,220 INFO L130 PetriNetUnfolder]: For 702/728 co-relation queries the response was YES. [2021-03-25 02:47:23,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 145 events. 50/145 cut-off events. For 702/728 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 636 event pairs, 0 based on Foata normal form. 20/137 useless extension candidates. Maximal degree in co-relation 615. Up to 58 conditions per place. [2021-03-25 02:47:23,222 INFO L132 encePairwiseOnDemand]: 112/136 looper letters, 17 selfloop transitions, 29 changer transitions 0/56 dead transitions. [2021-03-25 02:47:23,222 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 56 transitions, 562 flow [2021-03-25 02:47:23,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 02:47:23,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 02:47:23,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 573 transitions. [2021-03-25 02:47:23,224 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.601890756302521 [2021-03-25 02:47:23,224 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 573 transitions. [2021-03-25 02:47:23,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 573 transitions. [2021-03-25 02:47:23,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:23,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 573 transitions. [2021-03-25 02:47:23,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 81.85714285714286) internal successors, (573), 7 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:23,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:23,228 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:23,228 INFO L185 Difference]: Start difference. First operand has 54 places, 53 transitions, 440 flow. Second operand 7 states and 573 transitions. [2021-03-25 02:47:23,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 56 transitions, 562 flow [2021-03-25 02:47:23,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 56 transitions, 535 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-25 02:47:23,235 INFO L241 Difference]: Finished difference. Result has 59 places, 55 transitions, 521 flow [2021-03-25 02:47:23,236 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=521, PETRI_PLACES=59, PETRI_TRANSITIONS=55} [2021-03-25 02:47:23,236 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 28 predicate places. [2021-03-25 02:47:23,236 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:23,236 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 55 transitions, 521 flow [2021-03-25 02:47:23,236 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 55 transitions, 521 flow [2021-03-25 02:47:23,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 55 transitions, 521 flow [2021-03-25 02:47:23,251 INFO L129 PetriNetUnfolder]: 50/145 cut-off events. [2021-03-25 02:47:23,251 INFO L130 PetriNetUnfolder]: For 697/705 co-relation queries the response was YES. [2021-03-25 02:47:23,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 145 events. 50/145 cut-off events. For 697/705 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 665 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 581. Up to 56 conditions per place. [2021-03-25 02:47:23,253 INFO L142 LiptonReduction]: Number of co-enabled transitions 326 [2021-03-25 02:47:23,305 INFO L154 LiptonReduction]: Checked pairs total: 32 [2021-03-25 02:47:23,305 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 02:47:23,305 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-03-25 02:47:23,306 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 55 transitions, 521 flow [2021-03-25 02:47:23,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:23,307 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:23,307 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:23,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 02:47:23,307 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:23,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:23,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1327617789, now seen corresponding path program 1 times [2021-03-25 02:47:23,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:23,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819761776] [2021-03-25 02:47:23,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:23,340 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:23,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,345 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-25 02:47:23,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:23,353 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-25 02:47:23,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:23,362 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:23,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:23,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819761776] [2021-03-25 02:47:23,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032093482] [2021-03-25 02:47:23,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-25 02:47:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:23,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 02:47:23,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:23,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:23,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:23,444 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-25 02:47:23,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:23,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:23,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:23,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:23,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:23,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:23,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:23,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:23,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:23,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:23,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:23,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:23,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:23,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:23,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:23,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:23,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:23,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:23,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:23,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:23,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:23,505 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-25 02:47:23,506 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-25 02:47:23,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:23,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:23,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:23,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 02:47:23,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011366506] [2021-03-25 02:47:23,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 02:47:23,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:23,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 02:47:23,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-03-25 02:47:23,513 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 138 [2021-03-25 02:47:23,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 55 transitions, 521 flow. Second operand has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:23,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:23,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 138 [2021-03-25 02:47:23,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:23,621 INFO L129 PetriNetUnfolder]: 47/142 cut-off events. [2021-03-25 02:47:23,621 INFO L130 PetriNetUnfolder]: For 759/776 co-relation queries the response was YES. [2021-03-25 02:47:23,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 663 conditions, 142 events. 47/142 cut-off events. For 759/776 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 637 event pairs, 0 based on Foata normal form. 6/119 useless extension candidates. Maximal degree in co-relation 635. Up to 67 conditions per place. [2021-03-25 02:47:23,623 INFO L132 encePairwiseOnDemand]: 122/138 looper letters, 34 selfloop transitions, 19 changer transitions 0/63 dead transitions. [2021-03-25 02:47:23,623 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 63 transitions, 710 flow [2021-03-25 02:47:23,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 02:47:23,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 02:47:23,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 499 transitions. [2021-03-25 02:47:23,625 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6026570048309179 [2021-03-25 02:47:23,625 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 499 transitions. [2021-03-25 02:47:23,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 499 transitions. [2021-03-25 02:47:23,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:23,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 499 transitions. [2021-03-25 02:47:23,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 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) [2021-03-25 02:47:23,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 138.0) internal successors, (966), 7 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:23,628 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 138.0) internal successors, (966), 7 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:23,628 INFO L185 Difference]: Start difference. First operand has 59 places, 55 transitions, 521 flow. Second operand 6 states and 499 transitions. [2021-03-25 02:47:23,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 63 transitions, 710 flow [2021-03-25 02:47:23,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 63 transitions, 650 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-03-25 02:47:23,633 INFO L241 Difference]: Finished difference. Result has 59 places, 58 transitions, 566 flow [2021-03-25 02:47:23,633 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=566, PETRI_PLACES=59, PETRI_TRANSITIONS=58} [2021-03-25 02:47:23,633 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 28 predicate places. [2021-03-25 02:47:23,633 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:23,633 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 58 transitions, 566 flow [2021-03-25 02:47:23,633 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 58 transitions, 566 flow [2021-03-25 02:47:23,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 58 transitions, 566 flow [2021-03-25 02:47:23,643 INFO L129 PetriNetUnfolder]: 47/142 cut-off events. [2021-03-25 02:47:23,644 INFO L130 PetriNetUnfolder]: For 736/745 co-relation queries the response was YES. [2021-03-25 02:47:23,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 142 events. 47/142 cut-off events. For 736/745 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 639 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 569. Up to 53 conditions per place. [2021-03-25 02:47:23,645 INFO L142 LiptonReduction]: Number of co-enabled transitions 328 [2021-03-25 02:47:23,698 INFO L154 LiptonReduction]: Checked pairs total: 62 [2021-03-25 02:47:23,698 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 02:47:23,698 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-03-25 02:47:23,699 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 58 transitions, 566 flow [2021-03-25 02:47:23,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:23,699 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:23,699 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:23,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 02:47:23,912 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:23,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:23,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1289761240, now seen corresponding path program 1 times [2021-03-25 02:47:23,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:23,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586855870] [2021-03-25 02:47:23,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:23,952 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:23,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,957 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-25 02:47:23,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:23,963 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-03-25 02:47:23,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:47:23,971 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:23,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:23,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:23,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586855870] [2021-03-25 02:47:23,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578817341] [2021-03-25 02:47:23,977 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 [2021-03-25 02:47:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:24,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 02:47:24,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:24,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:24,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:24,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:24,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:24,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:24,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:24,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:24,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:24,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:24,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:24,098 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-03-25 02:47:24,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:47:24,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:47:24,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:24,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:24,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:24,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:24,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:24,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:24,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:24,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:24,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:24,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 02:47:24,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9010191] [2021-03-25 02:47:24,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 02:47:24,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:24,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 02:47:24,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-03-25 02:47:24,123 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 140 [2021-03-25 02:47:24,124 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 58 transitions, 566 flow. Second operand has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:24,124 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:24,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 140 [2021-03-25 02:47:24,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:24,286 INFO L129 PetriNetUnfolder]: 49/150 cut-off events. [2021-03-25 02:47:24,286 INFO L130 PetriNetUnfolder]: For 892/916 co-relation queries the response was YES. [2021-03-25 02:47:24,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 150 events. 49/150 cut-off events. For 892/916 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 690 event pairs, 0 based on Foata normal form. 14/133 useless extension candidates. Maximal degree in co-relation 688. Up to 67 conditions per place. [2021-03-25 02:47:24,288 INFO L132 encePairwiseOnDemand]: 121/140 looper letters, 30 selfloop transitions, 24 changer transitions 0/64 dead transitions. [2021-03-25 02:47:24,288 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 64 transitions, 730 flow [2021-03-25 02:47:24,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 02:47:24,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 02:47:24,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 579 transitions. [2021-03-25 02:47:24,290 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5908163265306122 [2021-03-25 02:47:24,290 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 579 transitions. [2021-03-25 02:47:24,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 579 transitions. [2021-03-25 02:47:24,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:24,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 579 transitions. [2021-03-25 02:47:24,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:24,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 140.0) internal successors, (1120), 8 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:24,294 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 140.0) internal successors, (1120), 8 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:24,294 INFO L185 Difference]: Start difference. First operand has 59 places, 58 transitions, 566 flow. Second operand 7 states and 579 transitions. [2021-03-25 02:47:24,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 64 transitions, 730 flow [2021-03-25 02:47:24,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 696 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-25 02:47:24,299 INFO L241 Difference]: Finished difference. Result has 63 places, 59 transitions, 614 flow [2021-03-25 02:47:24,299 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=614, PETRI_PLACES=63, PETRI_TRANSITIONS=59} [2021-03-25 02:47:24,300 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 32 predicate places. [2021-03-25 02:47:24,300 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:24,300 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 59 transitions, 614 flow [2021-03-25 02:47:24,300 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 59 transitions, 614 flow [2021-03-25 02:47:24,301 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 59 transitions, 614 flow [2021-03-25 02:47:24,312 INFO L129 PetriNetUnfolder]: 49/148 cut-off events. [2021-03-25 02:47:24,312 INFO L130 PetriNetUnfolder]: For 897/899 co-relation queries the response was YES. [2021-03-25 02:47:24,313 INFO L84 FinitePrefix]: Finished finitePrefix Result has 654 conditions, 148 events. 49/148 cut-off events. For 897/899 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 685 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 628. Up to 55 conditions per place. [2021-03-25 02:47:24,314 INFO L142 LiptonReduction]: Number of co-enabled transitions 334 [2021-03-25 02:47:24,349 INFO L154 LiptonReduction]: Checked pairs total: 24 [2021-03-25 02:47:24,350 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 02:47:24,350 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-25 02:47:24,350 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 59 transitions, 614 flow [2021-03-25 02:47:24,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:24,350 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:24,351 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:24,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 02:47:24,572 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:24,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:24,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1872617982, now seen corresponding path program 1 times [2021-03-25 02:47:24,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:24,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780294892] [2021-03-25 02:47:24,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:24,621 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:24,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:24,626 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-03-25 02:47:24,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:24,632 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-25 02:47:24,633 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:24,644 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:24,644 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:24,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:24,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780294892] [2021-03-25 02:47:24,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:24,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:24,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443727194] [2021-03-25 02:47:24,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 02:47:24,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:24,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 02:47:24,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 02:47:24,656 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 141 [2021-03-25 02:47:24,657 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 59 transitions, 614 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:24,657 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:24,657 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 141 [2021-03-25 02:47:24,657 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:24,817 INFO L129 PetriNetUnfolder]: 55/172 cut-off events. [2021-03-25 02:47:24,818 INFO L130 PetriNetUnfolder]: For 1219/1231 co-relation queries the response was YES. [2021-03-25 02:47:24,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 851 conditions, 172 events. 55/172 cut-off events. For 1219/1231 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 863 event pairs, 0 based on Foata normal form. 10/146 useless extension candidates. Maximal degree in co-relation 823. Up to 67 conditions per place. [2021-03-25 02:47:24,819 INFO L132 encePairwiseOnDemand]: 111/141 looper letters, 10 selfloop transitions, 48 changer transitions 0/68 dead transitions. [2021-03-25 02:47:24,819 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 68 transitions, 860 flow [2021-03-25 02:47:24,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 02:47:24,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 02:47:24,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 741 transitions. [2021-03-25 02:47:24,821 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5839243498817966 [2021-03-25 02:47:24,822 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 741 transitions. [2021-03-25 02:47:24,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 741 transitions. [2021-03-25 02:47:24,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:24,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 741 transitions. [2021-03-25 02:47:24,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.33333333333333) internal successors, (741), 9 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:24,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 141.0) internal successors, (1410), 10 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:24,826 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 141.0) internal successors, (1410), 10 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:24,826 INFO L185 Difference]: Start difference. First operand has 63 places, 59 transitions, 614 flow. Second operand 9 states and 741 transitions. [2021-03-25 02:47:24,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 68 transitions, 860 flow [2021-03-25 02:47:24,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 68 transitions, 815 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-03-25 02:47:24,831 INFO L241 Difference]: Finished difference. Result has 68 places, 67 transitions, 847 flow [2021-03-25 02:47:24,832 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=847, PETRI_PLACES=68, PETRI_TRANSITIONS=67} [2021-03-25 02:47:24,832 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 37 predicate places. [2021-03-25 02:47:24,833 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:24,833 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 67 transitions, 847 flow [2021-03-25 02:47:24,833 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 67 transitions, 847 flow [2021-03-25 02:47:24,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 67 transitions, 847 flow [2021-03-25 02:47:24,846 INFO L129 PetriNetUnfolder]: 55/172 cut-off events. [2021-03-25 02:47:24,846 INFO L130 PetriNetUnfolder]: For 1455/1467 co-relation queries the response was YES. [2021-03-25 02:47:24,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 873 conditions, 172 events. 55/172 cut-off events. For 1455/1467 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 872 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 845. Up to 67 conditions per place. [2021-03-25 02:47:24,849 INFO L142 LiptonReduction]: Number of co-enabled transitions 372 [2021-03-25 02:47:24,968 INFO L154 LiptonReduction]: Checked pairs total: 130 [2021-03-25 02:47:24,968 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 02:47:24,968 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 135 [2021-03-25 02:47:24,969 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 66 transitions, 845 flow [2021-03-25 02:47:24,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:24,970 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:24,970 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:24,970 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 02:47:24,970 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:24,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:24,970 INFO L82 PathProgramCache]: Analyzing trace with hash -664119268, now seen corresponding path program 1 times [2021-03-25 02:47:24,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:24,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10250440] [2021-03-25 02:47:24,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:25,000 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 02:47:25,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:25,006 INFO L142 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-03-25 02:47:25,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,012 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-03-25 02:47:25,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:25,029 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-25 02:47:25,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:25,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:25,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10250440] [2021-03-25 02:47:25,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002044811] [2021-03-25 02:47:25,037 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 [2021-03-25 02:47:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:25,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 02:47:25,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:25,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:25,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:25,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:25,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:25,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:25,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:25,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:25,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:25,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:25,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:25,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:25,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:25,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:25,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:25,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:25,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:25,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:25,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:25,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:47:25,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:25,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:25,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:47:25,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:25,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:25,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:25,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:25,158 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-25 02:47:25,160 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 02:47:25,161 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:25,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:25,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:25,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:25,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:25,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:25,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:25,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-25 02:47:25,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668312950] [2021-03-25 02:47:25,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 02:47:25,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:25,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 02:47:25,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-03-25 02:47:25,184 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 146 [2021-03-25 02:47:25,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 66 transitions, 845 flow. Second operand has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:25,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:25,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 146 [2021-03-25 02:47:25,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:25,389 INFO L129 PetriNetUnfolder]: 62/191 cut-off events. [2021-03-25 02:47:25,389 INFO L130 PetriNetUnfolder]: For 1932/1966 co-relation queries the response was YES. [2021-03-25 02:47:25,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1086 conditions, 191 events. 62/191 cut-off events. For 1932/1966 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 967 event pairs, 0 based on Foata normal form. 15/167 useless extension candidates. Maximal degree in co-relation 1056. Up to 84 conditions per place. [2021-03-25 02:47:25,391 INFO L132 encePairwiseOnDemand]: 122/146 looper letters, 28 selfloop transitions, 44 changer transitions 0/81 dead transitions. [2021-03-25 02:47:25,391 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 81 transitions, 1218 flow [2021-03-25 02:47:25,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 02:47:25,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 02:47:25,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 907 transitions. [2021-03-25 02:47:25,394 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5647571606475716 [2021-03-25 02:47:25,394 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 907 transitions. [2021-03-25 02:47:25,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 907 transitions. [2021-03-25 02:47:25,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:25,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 907 transitions. [2021-03-25 02:47:25,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 82.45454545454545) internal successors, (907), 11 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:25,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 146.0) internal successors, (1752), 12 states have internal predecessors, (1752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:25,399 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 146.0) internal successors, (1752), 12 states have internal predecessors, (1752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:25,399 INFO L185 Difference]: Start difference. First operand has 67 places, 66 transitions, 845 flow. Second operand 11 states and 907 transitions. [2021-03-25 02:47:25,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 81 transitions, 1218 flow [2021-03-25 02:47:25,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 81 transitions, 1165 flow, removed 14 selfloop flow, removed 5 redundant places. [2021-03-25 02:47:25,406 INFO L241 Difference]: Finished difference. Result has 75 places, 81 transitions, 1153 flow [2021-03-25 02:47:25,406 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1153, PETRI_PLACES=75, PETRI_TRANSITIONS=81} [2021-03-25 02:47:25,406 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 44 predicate places. [2021-03-25 02:47:25,407 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:25,407 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 81 transitions, 1153 flow [2021-03-25 02:47:25,407 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 81 transitions, 1153 flow [2021-03-25 02:47:25,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 81 transitions, 1153 flow [2021-03-25 02:47:25,421 INFO L129 PetriNetUnfolder]: 62/187 cut-off events. [2021-03-25 02:47:25,422 INFO L130 PetriNetUnfolder]: For 1888/1904 co-relation queries the response was YES. [2021-03-25 02:47:25,422 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1055 conditions, 187 events. 62/187 cut-off events. For 1888/1904 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 929 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 1024. Up to 78 conditions per place. [2021-03-25 02:47:25,424 INFO L142 LiptonReduction]: Number of co-enabled transitions 458 [2021-03-25 02:47:25,654 INFO L154 LiptonReduction]: Checked pairs total: 289 [2021-03-25 02:47:25,655 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-25 02:47:25,655 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 248 [2021-03-25 02:47:25,656 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 81 transitions, 1156 flow [2021-03-25 02:47:25,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:25,656 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:25,656 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:25,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-03-25 02:47:25,872 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:25,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:25,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1500324590, now seen corresponding path program 1 times [2021-03-25 02:47:25,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:25,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956829541] [2021-03-25 02:47:25,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:25,896 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:25,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:25,901 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:47:25,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:25,907 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-25 02:47:25,908 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:25,918 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:25,918 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:25,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:25,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956829541] [2021-03-25 02:47:25,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:25,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:25,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271791682] [2021-03-25 02:47:25,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 02:47:25,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:25,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 02:47:25,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 02:47:25,930 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 154 [2021-03-25 02:47:25,930 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 81 transitions, 1156 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:25,930 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:25,930 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 154 [2021-03-25 02:47:25,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:26,090 INFO L129 PetriNetUnfolder]: 69/214 cut-off events. [2021-03-25 02:47:26,090 INFO L130 PetriNetUnfolder]: For 2639/2710 co-relation queries the response was YES. [2021-03-25 02:47:26,091 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1327 conditions, 214 events. 69/214 cut-off events. For 2639/2710 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1171 event pairs, 0 based on Foata normal form. 27/196 useless extension candidates. Maximal degree in co-relation 1294. Up to 91 conditions per place. [2021-03-25 02:47:26,093 INFO L132 encePairwiseOnDemand]: 114/154 looper letters, 19 selfloop transitions, 65 changer transitions 0/93 dead transitions. [2021-03-25 02:47:26,093 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 93 transitions, 1564 flow [2021-03-25 02:47:26,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 02:47:26,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 02:47:26,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 754 transitions. [2021-03-25 02:47:26,095 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5440115440115441 [2021-03-25 02:47:26,095 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 754 transitions. [2021-03-25 02:47:26,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 754 transitions. [2021-03-25 02:47:26,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:26,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 754 transitions. [2021-03-25 02:47:26,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 83.77777777777777) internal successors, (754), 9 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:26,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 154.0) internal successors, (1540), 10 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:26,100 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 154.0) internal successors, (1540), 10 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:26,100 INFO L185 Difference]: Start difference. First operand has 75 places, 81 transitions, 1156 flow. Second operand 9 states and 754 transitions. [2021-03-25 02:47:26,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 93 transitions, 1564 flow [2021-03-25 02:47:26,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 93 transitions, 1347 flow, removed 91 selfloop flow, removed 5 redundant places. [2021-03-25 02:47:26,127 INFO L241 Difference]: Finished difference. Result has 81 places, 90 transitions, 1366 flow [2021-03-25 02:47:26,127 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=987, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1366, PETRI_PLACES=81, PETRI_TRANSITIONS=90} [2021-03-25 02:47:26,127 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 50 predicate places. [2021-03-25 02:47:26,127 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:26,127 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 90 transitions, 1366 flow [2021-03-25 02:47:26,127 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 90 transitions, 1366 flow [2021-03-25 02:47:26,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 90 transitions, 1366 flow [2021-03-25 02:47:26,146 INFO L129 PetriNetUnfolder]: 69/212 cut-off events. [2021-03-25 02:47:26,147 INFO L130 PetriNetUnfolder]: For 2236/2266 co-relation queries the response was YES. [2021-03-25 02:47:26,148 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1214 conditions, 212 events. 69/212 cut-off events. For 2236/2266 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1158 event pairs, 0 based on Foata normal form. 1/168 useless extension candidates. Maximal degree in co-relation 1180. Up to 85 conditions per place. [2021-03-25 02:47:26,150 INFO L142 LiptonReduction]: Number of co-enabled transitions 498 [2021-03-25 02:47:26,329 INFO L154 LiptonReduction]: Checked pairs total: 299 [2021-03-25 02:47:26,330 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 02:47:26,330 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 203 [2021-03-25 02:47:26,330 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 90 transitions, 1372 flow [2021-03-25 02:47:26,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:26,331 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:26,331 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:26,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 02:47:26,331 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:26,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:26,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1361316250, now seen corresponding path program 1 times [2021-03-25 02:47:26,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:26,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047299485] [2021-03-25 02:47:26,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:26,365 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:26,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:26,371 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:47:26,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,378 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-03-25 02:47:26,378 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-03-25 02:47:26,393 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:26,393 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:26,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:26,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047299485] [2021-03-25 02:47:26,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:26,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:26,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503502814] [2021-03-25 02:47:26,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 02:47:26,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:26,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 02:47:26,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 02:47:26,406 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 161 [2021-03-25 02:47:26,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 90 transitions, 1372 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:26,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:26,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 161 [2021-03-25 02:47:26,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:26,545 INFO L129 PetriNetUnfolder]: 70/216 cut-off events. [2021-03-25 02:47:26,545 INFO L130 PetriNetUnfolder]: For 2375/2465 co-relation queries the response was YES. [2021-03-25 02:47:26,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1368 conditions, 216 events. 70/216 cut-off events. For 2375/2465 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1192 event pairs, 0 based on Foata normal form. 29/200 useless extension candidates. Maximal degree in co-relation 1332. Up to 88 conditions per place. [2021-03-25 02:47:26,547 INFO L132 encePairwiseOnDemand]: 128/161 looper letters, 43 selfloop transitions, 44 changer transitions 0/96 dead transitions. [2021-03-25 02:47:26,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 96 transitions, 1636 flow [2021-03-25 02:47:26,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 02:47:26,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 02:47:26,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 596 transitions. [2021-03-25 02:47:26,550 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5288376220053239 [2021-03-25 02:47:26,550 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 596 transitions. [2021-03-25 02:47:26,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 596 transitions. [2021-03-25 02:47:26,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:26,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 596 transitions. [2021-03-25 02:47:26,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 85.14285714285714) internal successors, (596), 7 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:26,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:26,553 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:26,553 INFO L185 Difference]: Start difference. First operand has 81 places, 90 transitions, 1372 flow. Second operand 7 states and 596 transitions. [2021-03-25 02:47:26,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 96 transitions, 1636 flow [2021-03-25 02:47:26,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 96 transitions, 1552 flow, removed 23 selfloop flow, removed 5 redundant places. [2021-03-25 02:47:26,567 INFO L241 Difference]: Finished difference. Result has 83 places, 91 transitions, 1438 flow [2021-03-25 02:47:26,567 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1294, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1438, PETRI_PLACES=83, PETRI_TRANSITIONS=91} [2021-03-25 02:47:26,567 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 52 predicate places. [2021-03-25 02:47:26,567 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:26,567 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 91 transitions, 1438 flow [2021-03-25 02:47:26,568 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 91 transitions, 1438 flow [2021-03-25 02:47:26,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 91 transitions, 1438 flow [2021-03-25 02:47:26,584 INFO L129 PetriNetUnfolder]: 70/216 cut-off events. [2021-03-25 02:47:26,584 INFO L130 PetriNetUnfolder]: For 2411/2456 co-relation queries the response was YES. [2021-03-25 02:47:26,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1278 conditions, 216 events. 70/216 cut-off events. For 2411/2456 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1176 event pairs, 0 based on Foata normal form. 1/170 useless extension candidates. Maximal degree in co-relation 1243. Up to 82 conditions per place. [2021-03-25 02:47:26,586 INFO L142 LiptonReduction]: Number of co-enabled transitions 502 [2021-03-25 02:47:26,615 INFO L154 LiptonReduction]: Checked pairs total: 39 [2021-03-25 02:47:26,615 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 02:47:26,615 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-03-25 02:47:26,616 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 91 transitions, 1438 flow [2021-03-25 02:47:26,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:26,616 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:26,616 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:26,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 02:47:26,616 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:26,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:26,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1183385077, now seen corresponding path program 1 times [2021-03-25 02:47:26,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:26,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86189149] [2021-03-25 02:47:26,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:26,653 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 02:47:26,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:26,659 INFO L142 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-03-25 02:47:26,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,665 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-03-25 02:47:26,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:26,678 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-25 02:47:26,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:26,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:26,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86189149] [2021-03-25 02:47:26,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486036011] [2021-03-25 02:47:26,685 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 [2021-03-25 02:47:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:26,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 02:47:26,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:26,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:26,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:26,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:26,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:26,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:26,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:26,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:26,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:26,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:26,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:26,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:26,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:26,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:26,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:26,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:26,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:26,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:26,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:26,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:47:26,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:26,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:26,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:47:26,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:26,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:26,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:26,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:26,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:26,816 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-25 02:47:26,817 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 02:47:26,818 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:26,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:26,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:26,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:26,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:26,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:26,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:26,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-25 02:47:26,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935496051] [2021-03-25 02:47:26,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 02:47:26,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:26,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 02:47:26,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-03-25 02:47:26,838 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 162 [2021-03-25 02:47:26,839 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 91 transitions, 1438 flow. Second operand has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:26,839 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:26,839 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 162 [2021-03-25 02:47:26,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:27,093 INFO L129 PetriNetUnfolder]: 80/248 cut-off events. [2021-03-25 02:47:27,093 INFO L130 PetriNetUnfolder]: For 3246/3342 co-relation queries the response was YES. [2021-03-25 02:47:27,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1607 conditions, 248 events. 80/248 cut-off events. For 3246/3342 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1386 event pairs, 0 based on Foata normal form. 22/218 useless extension candidates. Maximal degree in co-relation 1570. Up to 105 conditions per place. [2021-03-25 02:47:27,096 INFO L132 encePairwiseOnDemand]: 129/162 looper letters, 37 selfloop transitions, 63 changer transitions 0/109 dead transitions. [2021-03-25 02:47:27,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 109 transitions, 1977 flow [2021-03-25 02:47:27,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 02:47:27,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 02:47:27,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 925 transitions. [2021-03-25 02:47:27,100 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5190796857463524 [2021-03-25 02:47:27,100 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 925 transitions. [2021-03-25 02:47:27,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 925 transitions. [2021-03-25 02:47:27,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:27,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 925 transitions. [2021-03-25 02:47:27,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.0909090909091) internal successors, (925), 11 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:27,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 162.0) internal successors, (1944), 12 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:27,107 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 162.0) internal successors, (1944), 12 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:27,107 INFO L185 Difference]: Start difference. First operand has 83 places, 91 transitions, 1438 flow. Second operand 11 states and 925 transitions. [2021-03-25 02:47:27,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 109 transitions, 1977 flow [2021-03-25 02:47:27,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 109 transitions, 1925 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-25 02:47:27,121 INFO L241 Difference]: Finished difference. Result has 92 places, 109 transitions, 1909 flow [2021-03-25 02:47:27,121 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=1387, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1909, PETRI_PLACES=92, PETRI_TRANSITIONS=109} [2021-03-25 02:47:27,121 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 61 predicate places. [2021-03-25 02:47:27,122 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:27,122 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 109 transitions, 1909 flow [2021-03-25 02:47:27,122 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 109 transitions, 1909 flow [2021-03-25 02:47:27,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 109 transitions, 1909 flow [2021-03-25 02:47:27,142 INFO L129 PetriNetUnfolder]: 80/244 cut-off events. [2021-03-25 02:47:27,142 INFO L130 PetriNetUnfolder]: For 3263/3318 co-relation queries the response was YES. [2021-03-25 02:47:27,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1571 conditions, 244 events. 80/244 cut-off events. For 3263/3318 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1361 event pairs, 0 based on Foata normal form. 1/193 useless extension candidates. Maximal degree in co-relation 1533. Up to 100 conditions per place. [2021-03-25 02:47:27,146 INFO L142 LiptonReduction]: Number of co-enabled transitions 610 [2021-03-25 02:47:27,395 INFO L154 LiptonReduction]: Checked pairs total: 460 [2021-03-25 02:47:27,396 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-25 02:47:27,396 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 275 [2021-03-25 02:47:27,396 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 109 transitions, 1915 flow [2021-03-25 02:47:27,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:27,397 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:27,397 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:27,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 02:47:27,613 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:27,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:27,613 INFO L82 PathProgramCache]: Analyzing trace with hash -732194695, now seen corresponding path program 1 times [2021-03-25 02:47:27,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:27,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630138976] [2021-03-25 02:47:27,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:27,639 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:27,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:27,645 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:47:27,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:27,651 INFO L142 QuantifierPusher]: treesize reduction 13, result has 35.0 percent of original size [2021-03-25 02:47:27,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:27,660 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:27,660 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:27,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:27,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630138976] [2021-03-25 02:47:27,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:27,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:27,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093418378] [2021-03-25 02:47:27,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 02:47:27,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:27,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 02:47:27,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 02:47:27,674 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 171 [2021-03-25 02:47:27,674 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 109 transitions, 1915 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:27,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:27,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 171 [2021-03-25 02:47:27,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:27,915 INFO L129 PetriNetUnfolder]: 87/271 cut-off events. [2021-03-25 02:47:27,915 INFO L130 PetriNetUnfolder]: For 4323/4542 co-relation queries the response was YES. [2021-03-25 02:47:27,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1900 conditions, 271 events. 87/271 cut-off events. For 4323/4542 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1630 event pairs, 0 based on Foata normal form. 37/250 useless extension candidates. Maximal degree in co-relation 1860. Up to 114 conditions per place. [2021-03-25 02:47:27,918 INFO L132 encePairwiseOnDemand]: 116/171 looper letters, 22 selfloop transitions, 90 changer transitions 0/121 dead transitions. [2021-03-25 02:47:27,918 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 121 transitions, 2421 flow [2021-03-25 02:47:27,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 02:47:27,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 02:47:27,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 770 transitions. [2021-03-25 02:47:27,920 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5003248862897985 [2021-03-25 02:47:27,920 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 770 transitions. [2021-03-25 02:47:27,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 770 transitions. [2021-03-25 02:47:27,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:27,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 770 transitions. [2021-03-25 02:47:27,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 85.55555555555556) internal successors, (770), 9 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:27,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 171.0) internal successors, (1710), 10 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:27,924 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 171.0) internal successors, (1710), 10 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:27,924 INFO L185 Difference]: Start difference. First operand has 92 places, 109 transitions, 1915 flow. Second operand 9 states and 770 transitions. [2021-03-25 02:47:27,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 121 transitions, 2421 flow [2021-03-25 02:47:27,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 121 transitions, 2238 flow, removed 78 selfloop flow, removed 3 redundant places. [2021-03-25 02:47:27,941 INFO L241 Difference]: Finished difference. Result has 100 places, 118 transitions, 2269 flow [2021-03-25 02:47:27,942 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=1756, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2269, PETRI_PLACES=100, PETRI_TRANSITIONS=118} [2021-03-25 02:47:27,942 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 69 predicate places. [2021-03-25 02:47:27,942 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:27,942 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 118 transitions, 2269 flow [2021-03-25 02:47:27,942 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 118 transitions, 2269 flow [2021-03-25 02:47:27,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 118 transitions, 2269 flow [2021-03-25 02:47:27,966 INFO L129 PetriNetUnfolder]: 87/271 cut-off events. [2021-03-25 02:47:27,966 INFO L130 PetriNetUnfolder]: For 4503/4570 co-relation queries the response was YES. [2021-03-25 02:47:27,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1889 conditions, 271 events. 87/271 cut-off events. For 4503/4570 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1616 event pairs, 0 based on Foata normal form. 2/214 useless extension candidates. Maximal degree in co-relation 1847. Up to 108 conditions per place. [2021-03-25 02:47:27,970 INFO L142 LiptonReduction]: Number of co-enabled transitions 650 [2021-03-25 02:47:28,191 INFO L154 LiptonReduction]: Checked pairs total: 469 [2021-03-25 02:47:28,191 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-25 02:47:28,191 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 249 [2021-03-25 02:47:28,196 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 118 transitions, 2277 flow [2021-03-25 02:47:28,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:28,196 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:28,196 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:28,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 02:47:28,196 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:28,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:28,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1361107682, now seen corresponding path program 1 times [2021-03-25 02:47:28,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:28,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466089250] [2021-03-25 02:47:28,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:28,224 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:28,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:28,229 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:47:28,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,236 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-03-25 02:47:28,237 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-03-25 02:47:28,251 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:28,251 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:28,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:28,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466089250] [2021-03-25 02:47:28,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:28,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:28,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976563007] [2021-03-25 02:47:28,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 02:47:28,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:28,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 02:47:28,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 02:47:28,264 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 179 [2021-03-25 02:47:28,264 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 118 transitions, 2277 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:28,264 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:28,264 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 179 [2021-03-25 02:47:28,264 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:28,464 INFO L129 PetriNetUnfolder]: 88/273 cut-off events. [2021-03-25 02:47:28,464 INFO L130 PetriNetUnfolder]: For 4786/4997 co-relation queries the response was YES. [2021-03-25 02:47:28,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2082 conditions, 273 events. 88/273 cut-off events. For 4786/4997 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1619 event pairs, 0 based on Foata normal form. 39/254 useless extension candidates. Maximal degree in co-relation 2038. Up to 111 conditions per place. [2021-03-25 02:47:28,468 INFO L132 encePairwiseOnDemand]: 141/179 looper letters, 58 selfloop transitions, 56 changer transitions 0/123 dead transitions. [2021-03-25 02:47:28,468 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 123 transitions, 2619 flow [2021-03-25 02:47:28,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 02:47:28,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 02:47:28,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 611 transitions. [2021-03-25 02:47:28,470 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4876296887470072 [2021-03-25 02:47:28,470 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 611 transitions. [2021-03-25 02:47:28,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 611 transitions. [2021-03-25 02:47:28,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:28,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 611 transitions. [2021-03-25 02:47:28,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.28571428571429) internal successors, (611), 7 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:28,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:28,474 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:28,474 INFO L185 Difference]: Start difference. First operand has 100 places, 118 transitions, 2277 flow. Second operand 7 states and 611 transitions. [2021-03-25 02:47:28,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 123 transitions, 2619 flow [2021-03-25 02:47:28,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 123 transitions, 2523 flow, removed 24 selfloop flow, removed 5 redundant places. [2021-03-25 02:47:28,495 INFO L241 Difference]: Finished difference. Result has 102 places, 119 transitions, 2371 flow [2021-03-25 02:47:28,495 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=2189, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2371, PETRI_PLACES=102, PETRI_TRANSITIONS=119} [2021-03-25 02:47:28,495 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 71 predicate places. [2021-03-25 02:47:28,495 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:28,496 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 119 transitions, 2371 flow [2021-03-25 02:47:28,496 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 119 transitions, 2371 flow [2021-03-25 02:47:28,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 119 transitions, 2371 flow [2021-03-25 02:47:28,520 INFO L129 PetriNetUnfolder]: 88/273 cut-off events. [2021-03-25 02:47:28,521 INFO L130 PetriNetUnfolder]: For 4711/4801 co-relation queries the response was YES. [2021-03-25 02:47:28,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1974 conditions, 273 events. 88/273 cut-off events. For 4711/4801 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1654 event pairs, 0 based on Foata normal form. 2/216 useless extension candidates. Maximal degree in co-relation 1931. Up to 108 conditions per place. [2021-03-25 02:47:28,525 INFO L142 LiptonReduction]: Number of co-enabled transitions 654 [2021-03-25 02:47:28,561 INFO L154 LiptonReduction]: Checked pairs total: 52 [2021-03-25 02:47:28,561 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 02:47:28,561 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-03-25 02:47:28,561 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 119 transitions, 2371 flow [2021-03-25 02:47:28,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:28,562 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:28,562 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:28,562 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 02:47:28,562 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:28,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:28,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1156166649, now seen corresponding path program 1 times [2021-03-25 02:47:28,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:28,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108174246] [2021-03-25 02:47:28,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:28,597 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 02:47:28,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:28,603 INFO L142 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-03-25 02:47:28,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,609 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-03-25 02:47:28,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:28,624 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-25 02:47:28,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:28,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:28,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108174246] [2021-03-25 02:47:28,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826666187] [2021-03-25 02:47:28,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-25 02:47:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:28,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 02:47:28,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:28,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:28,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:28,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:28,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:28,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:28,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:28,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:28,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:28,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:28,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:28,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:28,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:28,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:28,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:28,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:28,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:28,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:28,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:28,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:47:28,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:28,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:28,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:47:28,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:28,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:28,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:28,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:28,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:28,778 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-25 02:47:28,778 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 02:47:28,779 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:28,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:28,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:28,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:28,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:28,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:28,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:28,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-25 02:47:28,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58264981] [2021-03-25 02:47:28,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 02:47:28,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:28,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 02:47:28,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-03-25 02:47:28,803 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 180 [2021-03-25 02:47:28,804 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 119 transitions, 2371 flow. Second operand has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:28,804 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:28,804 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 180 [2021-03-25 02:47:28,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:29,154 INFO L129 PetriNetUnfolder]: 98/307 cut-off events. [2021-03-25 02:47:29,155 INFO L130 PetriNetUnfolder]: For 6065/6285 co-relation queries the response was YES. [2021-03-25 02:47:29,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2382 conditions, 307 events. 98/307 cut-off events. For 6065/6285 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1847 event pairs, 0 based on Foata normal form. 29/270 useless extension candidates. Maximal degree in co-relation 2337. Up to 126 conditions per place. [2021-03-25 02:47:29,158 INFO L132 encePairwiseOnDemand]: 136/180 looper letters, 46 selfloop transitions, 82 changer transitions 0/137 dead transitions. [2021-03-25 02:47:29,159 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 137 transitions, 3055 flow [2021-03-25 02:47:29,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 02:47:29,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 02:47:29,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 944 transitions. [2021-03-25 02:47:29,160 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4767676767676768 [2021-03-25 02:47:29,160 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 944 transitions. [2021-03-25 02:47:29,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 944 transitions. [2021-03-25 02:47:29,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:29,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 944 transitions. [2021-03-25 02:47:29,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 85.81818181818181) internal successors, (944), 11 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:29,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 180.0) internal successors, (2160), 12 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:29,164 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 180.0) internal successors, (2160), 12 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:29,165 INFO L185 Difference]: Start difference. First operand has 102 places, 119 transitions, 2371 flow. Second operand 11 states and 944 transitions. [2021-03-25 02:47:29,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 137 transitions, 3055 flow [2021-03-25 02:47:29,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 137 transitions, 2979 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-03-25 02:47:29,186 INFO L241 Difference]: Finished difference. Result has 110 places, 137 transitions, 2959 flow [2021-03-25 02:47:29,186 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=2295, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2959, PETRI_PLACES=110, PETRI_TRANSITIONS=137} [2021-03-25 02:47:29,186 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 79 predicate places. [2021-03-25 02:47:29,186 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:29,187 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 137 transitions, 2959 flow [2021-03-25 02:47:29,187 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 137 transitions, 2959 flow [2021-03-25 02:47:29,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 137 transitions, 2959 flow [2021-03-25 02:47:29,215 INFO L129 PetriNetUnfolder]: 98/305 cut-off events. [2021-03-25 02:47:29,215 INFO L130 PetriNetUnfolder]: For 6026/6140 co-relation queries the response was YES. [2021-03-25 02:47:29,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2335 conditions, 305 events. 98/305 cut-off events. For 6026/6140 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1841 event pairs, 0 based on Foata normal form. 2/242 useless extension candidates. Maximal degree in co-relation 2289. Up to 126 conditions per place. [2021-03-25 02:47:29,220 INFO L142 LiptonReduction]: Number of co-enabled transitions 762 [2021-03-25 02:47:29,445 INFO L154 LiptonReduction]: Checked pairs total: 585 [2021-03-25 02:47:29,446 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-25 02:47:29,446 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 260 [2021-03-25 02:47:29,446 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 136 transitions, 2950 flow [2021-03-25 02:47:29,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:29,446 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:29,447 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:29,669 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 02:47:29,670 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:29,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:29,670 INFO L82 PathProgramCache]: Analyzing trace with hash -20668083, now seen corresponding path program 1 times [2021-03-25 02:47:29,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:29,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973642431] [2021-03-25 02:47:29,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:29,690 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:29,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:29,696 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:47:29,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:29,704 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-03-25 02:47:29,704 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-03-25 02:47:29,718 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:29,719 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:29,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:29,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973642431] [2021-03-25 02:47:29,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:29,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:29,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696617491] [2021-03-25 02:47:29,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 02:47:29,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:29,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 02:47:29,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 02:47:29,731 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 189 [2021-03-25 02:47:29,731 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 136 transitions, 2950 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:29,731 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:29,731 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 189 [2021-03-25 02:47:29,731 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:29,961 INFO L129 PetriNetUnfolder]: 98/308 cut-off events. [2021-03-25 02:47:29,961 INFO L130 PetriNetUnfolder]: For 6656/7002 co-relation queries the response was YES. [2021-03-25 02:47:29,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2545 conditions, 308 events. 98/308 cut-off events. For 6656/7002 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1910 event pairs, 0 based on Foata normal form. 28/269 useless extension candidates. Maximal degree in co-relation 2497. Up to 128 conditions per place. [2021-03-25 02:47:29,965 INFO L132 encePairwiseOnDemand]: 142/189 looper letters, 60 selfloop transitions, 72 changer transitions 0/141 dead transitions. [2021-03-25 02:47:29,965 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 141 transitions, 3326 flow [2021-03-25 02:47:29,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 02:47:29,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 02:47:29,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 621 transitions. [2021-03-25 02:47:29,967 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46938775510204084 [2021-03-25 02:47:29,967 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 621 transitions. [2021-03-25 02:47:29,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 621 transitions. [2021-03-25 02:47:29,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:29,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 621 transitions. [2021-03-25 02:47:29,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.71428571428571) internal successors, (621), 7 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:29,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 189.0) internal successors, (1512), 8 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:29,969 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 189.0) internal successors, (1512), 8 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:29,969 INFO L185 Difference]: Start difference. First operand has 110 places, 136 transitions, 2950 flow. Second operand 7 states and 621 transitions. [2021-03-25 02:47:29,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 141 transitions, 3326 flow [2021-03-25 02:47:29,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 141 transitions, 3123 flow, removed 84 selfloop flow, removed 3 redundant places. [2021-03-25 02:47:29,997 INFO L241 Difference]: Finished difference. Result has 114 places, 137 transitions, 2976 flow [2021-03-25 02:47:29,997 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=2747, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2976, PETRI_PLACES=114, PETRI_TRANSITIONS=137} [2021-03-25 02:47:29,997 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 83 predicate places. [2021-03-25 02:47:29,997 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:29,997 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 137 transitions, 2976 flow [2021-03-25 02:47:29,998 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 137 transitions, 2976 flow [2021-03-25 02:47:29,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 137 transitions, 2976 flow [2021-03-25 02:47:30,024 INFO L129 PetriNetUnfolder]: 98/308 cut-off events. [2021-03-25 02:47:30,025 INFO L130 PetriNetUnfolder]: For 6258/6380 co-relation queries the response was YES. [2021-03-25 02:47:30,026 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2393 conditions, 308 events. 98/308 cut-off events. For 6258/6380 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 1936 event pairs, 0 based on Foata normal form. 3/244 useless extension candidates. Maximal degree in co-relation 2345. Up to 123 conditions per place. [2021-03-25 02:47:30,029 INFO L142 LiptonReduction]: Number of co-enabled transitions 756 [2021-03-25 02:47:30,188 INFO L154 LiptonReduction]: Checked pairs total: 330 [2021-03-25 02:47:30,188 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 02:47:30,188 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 191 [2021-03-25 02:47:30,189 INFO L480 AbstractCegarLoop]: Abstraction has has 114 places, 137 transitions, 2987 flow [2021-03-25 02:47:30,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:30,200 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:30,200 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:30,201 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-25 02:47:30,201 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:30,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:30,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1361028601, now seen corresponding path program 1 times [2021-03-25 02:47:30,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:30,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388368930] [2021-03-25 02:47:30,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:30,220 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:30,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:30,225 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:47:30,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:30,231 INFO L142 QuantifierPusher]: treesize reduction 13, result has 35.0 percent of original size [2021-03-25 02:47:30,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:30,238 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:30,238 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:30,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:30,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388368930] [2021-03-25 02:47:30,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:30,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:30,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939448542] [2021-03-25 02:47:30,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 02:47:30,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:30,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 02:47:30,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 02:47:30,266 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 194 [2021-03-25 02:47:30,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 137 transitions, 2987 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:30,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:30,267 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 194 [2021-03-25 02:47:30,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:30,554 INFO L129 PetriNetUnfolder]: 103/325 cut-off events. [2021-03-25 02:47:30,554 INFO L130 PetriNetUnfolder]: For 7538/7929 co-relation queries the response was YES. [2021-03-25 02:47:30,556 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2730 conditions, 325 events. 103/325 cut-off events. For 7538/7929 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2067 event pairs, 0 based on Foata normal form. 50/303 useless extension candidates. Maximal degree in co-relation 2680. Up to 133 conditions per place. [2021-03-25 02:47:30,559 INFO L132 encePairwiseOnDemand]: 121/194 looper letters, 19 selfloop transitions, 117 changer transitions 0/145 dead transitions. [2021-03-25 02:47:30,559 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 145 transitions, 3496 flow [2021-03-25 02:47:30,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 02:47:30,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 02:47:30,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 792 transitions. [2021-03-25 02:47:30,560 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4536082474226804 [2021-03-25 02:47:30,560 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 792 transitions. [2021-03-25 02:47:30,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 792 transitions. [2021-03-25 02:47:30,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:30,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 792 transitions. [2021-03-25 02:47:30,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 88.0) internal successors, (792), 9 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:30,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 194.0) internal successors, (1940), 10 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:30,564 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 194.0) internal successors, (1940), 10 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:30,564 INFO L185 Difference]: Start difference. First operand has 114 places, 137 transitions, 2987 flow. Second operand 9 states and 792 transitions. [2021-03-25 02:47:30,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 145 transitions, 3496 flow [2021-03-25 02:47:30,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 145 transitions, 3399 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-03-25 02:47:30,591 INFO L241 Difference]: Finished difference. Result has 120 places, 144 transitions, 3474 flow [2021-03-25 02:47:30,592 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=2891, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3474, PETRI_PLACES=120, PETRI_TRANSITIONS=144} [2021-03-25 02:47:30,592 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 89 predicate places. [2021-03-25 02:47:30,592 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:30,592 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 144 transitions, 3474 flow [2021-03-25 02:47:30,592 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 144 transitions, 3474 flow [2021-03-25 02:47:30,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 120 places, 144 transitions, 3474 flow [2021-03-25 02:47:30,623 INFO L129 PetriNetUnfolder]: 103/325 cut-off events. [2021-03-25 02:47:30,623 INFO L130 PetriNetUnfolder]: For 7964/8219 co-relation queries the response was YES. [2021-03-25 02:47:30,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2760 conditions, 325 events. 103/325 cut-off events. For 7964/8219 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2076 event pairs, 0 based on Foata normal form. 4/259 useless extension candidates. Maximal degree in co-relation 2710. Up to 133 conditions per place. [2021-03-25 02:47:30,629 INFO L142 LiptonReduction]: Number of co-enabled transitions 788 [2021-03-25 02:47:30,731 INFO L154 LiptonReduction]: Checked pairs total: 285 [2021-03-25 02:47:30,732 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 02:47:30,732 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 140 [2021-03-25 02:47:30,733 INFO L480 AbstractCegarLoop]: Abstraction has has 120 places, 144 transitions, 3474 flow [2021-03-25 02:47:30,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:30,733 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:30,733 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:30,734 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-25 02:47:30,734 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:30,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:30,734 INFO L82 PathProgramCache]: Analyzing trace with hash 265587924, now seen corresponding path program 1 times [2021-03-25 02:47:30,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:30,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620862597] [2021-03-25 02:47:30,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:30,758 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:30,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:30,763 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:47:30,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:30,770 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-03-25 02:47:30,770 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-03-25 02:47:30,785 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:30,785 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:30,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:30,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620862597] [2021-03-25 02:47:30,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:30,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:30,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468084604] [2021-03-25 02:47:30,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 02:47:30,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:30,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 02:47:30,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 02:47:30,799 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 198 [2021-03-25 02:47:30,800 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 144 transitions, 3474 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:30,800 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:30,800 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 198 [2021-03-25 02:47:30,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:31,046 INFO L129 PetriNetUnfolder]: 104/327 cut-off events. [2021-03-25 02:47:31,046 INFO L130 PetriNetUnfolder]: For 8474/8787 co-relation queries the response was YES. [2021-03-25 02:47:31,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2983 conditions, 327 events. 104/327 cut-off events. For 8474/8787 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2082 event pairs, 0 based on Foata normal form. 49/306 useless extension candidates. Maximal degree in co-relation 2931. Up to 135 conditions per place. [2021-03-25 02:47:31,051 INFO L132 encePairwiseOnDemand]: 144/198 looper letters, 60 selfloop transitions, 81 changer transitions 0/150 dead transitions. [2021-03-25 02:47:31,051 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 150 transitions, 3918 flow [2021-03-25 02:47:31,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 02:47:31,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 02:47:31,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 629 transitions. [2021-03-25 02:47:31,052 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4538239538239538 [2021-03-25 02:47:31,052 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 629 transitions. [2021-03-25 02:47:31,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 629 transitions. [2021-03-25 02:47:31,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:31,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 629 transitions. [2021-03-25 02:47:31,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 89.85714285714286) internal successors, (629), 7 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:31,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:31,055 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:31,055 INFO L185 Difference]: Start difference. First operand has 120 places, 144 transitions, 3474 flow. Second operand 7 states and 629 transitions. [2021-03-25 02:47:31,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 150 transitions, 3918 flow [2021-03-25 02:47:31,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 150 transitions, 3747 flow, removed 39 selfloop flow, removed 7 redundant places. [2021-03-25 02:47:31,089 INFO L241 Difference]: Finished difference. Result has 120 places, 145 transitions, 3570 flow [2021-03-25 02:47:31,090 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=3313, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3570, PETRI_PLACES=120, PETRI_TRANSITIONS=145} [2021-03-25 02:47:31,090 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 89 predicate places. [2021-03-25 02:47:31,090 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:31,090 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 145 transitions, 3570 flow [2021-03-25 02:47:31,090 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 145 transitions, 3570 flow [2021-03-25 02:47:31,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 120 places, 145 transitions, 3570 flow [2021-03-25 02:47:31,121 INFO L129 PetriNetUnfolder]: 104/327 cut-off events. [2021-03-25 02:47:31,121 INFO L130 PetriNetUnfolder]: For 8098/8237 co-relation queries the response was YES. [2021-03-25 02:47:31,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2830 conditions, 327 events. 104/327 cut-off events. For 8098/8237 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2109 event pairs, 0 based on Foata normal form. 3/260 useless extension candidates. Maximal degree in co-relation 2781. Up to 132 conditions per place. [2021-03-25 02:47:31,126 INFO L142 LiptonReduction]: Number of co-enabled transitions 792 [2021-03-25 02:47:31,165 INFO L154 LiptonReduction]: Checked pairs total: 64 [2021-03-25 02:47:31,166 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 02:47:31,166 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 76 [2021-03-25 02:47:31,166 INFO L480 AbstractCegarLoop]: Abstraction has has 120 places, 145 transitions, 3570 flow [2021-03-25 02:47:31,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:31,166 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:31,167 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:31,167 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-25 02:47:31,168 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:31,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:31,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1470484253, now seen corresponding path program 1 times [2021-03-25 02:47:31,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:31,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444819137] [2021-03-25 02:47:31,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:31,197 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:31,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:31,202 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:47:31,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,208 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-25 02:47:31,208 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:31,219 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:31,219 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:31,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:31,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444819137] [2021-03-25 02:47:31,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:31,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:31,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160608665] [2021-03-25 02:47:31,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 02:47:31,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:31,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 02:47:31,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 02:47:31,231 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 199 [2021-03-25 02:47:31,232 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 145 transitions, 3570 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:31,232 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:31,232 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 199 [2021-03-25 02:47:31,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:31,549 INFO L129 PetriNetUnfolder]: 110/346 cut-off events. [2021-03-25 02:47:31,549 INFO L130 PetriNetUnfolder]: For 9677/10021 co-relation queries the response was YES. [2021-03-25 02:47:31,550 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3222 conditions, 346 events. 110/346 cut-off events. For 9677/10021 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2245 event pairs, 0 based on Foata normal form. 50/322 useless extension candidates. Maximal degree in co-relation 3171. Up to 143 conditions per place. [2021-03-25 02:47:31,557 INFO L132 encePairwiseOnDemand]: 120/199 looper letters, 19 selfloop transitions, 126 changer transitions 0/154 dead transitions. [2021-03-25 02:47:31,557 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 154 transitions, 4166 flow [2021-03-25 02:47:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 02:47:31,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 02:47:31,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 798 transitions. [2021-03-25 02:47:31,559 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4455611390284757 [2021-03-25 02:47:31,559 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 798 transitions. [2021-03-25 02:47:31,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 798 transitions. [2021-03-25 02:47:31,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:31,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 798 transitions. [2021-03-25 02:47:31,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 88.66666666666667) internal successors, (798), 9 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:31,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 199.0) internal successors, (1990), 10 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:31,562 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 199.0) internal successors, (1990), 10 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:31,562 INFO L185 Difference]: Start difference. First operand has 120 places, 145 transitions, 3570 flow. Second operand 9 states and 798 transitions. [2021-03-25 02:47:31,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 154 transitions, 4166 flow [2021-03-25 02:47:31,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 154 transitions, 4072 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-25 02:47:31,596 INFO L241 Difference]: Finished difference. Result has 127 places, 153 transitions, 4153 flow [2021-03-25 02:47:31,596 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=3478, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4153, PETRI_PLACES=127, PETRI_TRANSITIONS=153} [2021-03-25 02:47:31,596 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 96 predicate places. [2021-03-25 02:47:31,597 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:31,597 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 153 transitions, 4153 flow [2021-03-25 02:47:31,597 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 153 transitions, 4153 flow [2021-03-25 02:47:31,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 153 transitions, 4153 flow [2021-03-25 02:47:31,631 INFO L129 PetriNetUnfolder]: 110/344 cut-off events. [2021-03-25 02:47:31,631 INFO L130 PetriNetUnfolder]: For 10275/10375 co-relation queries the response was YES. [2021-03-25 02:47:31,633 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3265 conditions, 344 events. 110/344 cut-off events. For 10275/10375 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2267 event pairs, 0 based on Foata normal form. 3/272 useless extension candidates. Maximal degree in co-relation 3213. Up to 143 conditions per place. [2021-03-25 02:47:31,637 INFO L142 LiptonReduction]: Number of co-enabled transitions 828 [2021-03-25 02:47:31,734 INFO L154 LiptonReduction]: Checked pairs total: 301 [2021-03-25 02:47:31,734 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 02:47:31,734 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 137 [2021-03-25 02:47:31,734 INFO L480 AbstractCegarLoop]: Abstraction has has 127 places, 153 transitions, 4153 flow [2021-03-25 02:47:31,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:31,735 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:31,735 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:31,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-25 02:47:31,735 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:31,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:31,735 INFO L82 PathProgramCache]: Analyzing trace with hash -728513322, now seen corresponding path program 1 times [2021-03-25 02:47:31,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:31,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494380328] [2021-03-25 02:47:31,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:31,757 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 02:47:31,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:31,762 INFO L142 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-03-25 02:47:31,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,768 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-03-25 02:47:31,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:31,779 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-25 02:47:31,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:31,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494380328] [2021-03-25 02:47:31,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635973893] [2021-03-25 02:47:31,786 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 [2021-03-25 02:47:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:31,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 02:47:31,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:31,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:31,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:31,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:31,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:31,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:31,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:31,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:31,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:31,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:31,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:31,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:31,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:31,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:31,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:31,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:31,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:31,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:31,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:31,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:47:31,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:31,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:31,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:47:31,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:31,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:31,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:31,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:31,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:31,904 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-25 02:47:31,905 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 02:47:31,906 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:31,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:31,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:31,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:31,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:31,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:31,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:31,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-25 02:47:31,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138319169] [2021-03-25 02:47:31,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 02:47:31,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:31,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 02:47:31,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-03-25 02:47:31,928 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 203 [2021-03-25 02:47:31,928 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 153 transitions, 4153 flow. Second operand has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:31,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:31,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 203 [2021-03-25 02:47:31,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:32,328 INFO L129 PetriNetUnfolder]: 118/370 cut-off events. [2021-03-25 02:47:32,328 INFO L130 PetriNetUnfolder]: For 12594/13042 co-relation queries the response was YES. [2021-03-25 02:47:32,330 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3728 conditions, 370 events. 118/370 cut-off events. For 12594/13042 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2426 event pairs, 0 based on Foata normal form. 36/327 useless extension candidates. Maximal degree in co-relation 3674. Up to 157 conditions per place. [2021-03-25 02:47:32,334 INFO L132 encePairwiseOnDemand]: 148/203 looper letters, 64 selfloop transitions, 94 changer transitions 0/167 dead transitions. [2021-03-25 02:47:32,334 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 167 transitions, 4941 flow [2021-03-25 02:47:32,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 02:47:32,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 02:47:32,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 965 transitions. [2021-03-25 02:47:32,336 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.432154052843708 [2021-03-25 02:47:32,336 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 965 transitions. [2021-03-25 02:47:32,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 965 transitions. [2021-03-25 02:47:32,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:32,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 965 transitions. [2021-03-25 02:47:32,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 87.72727272727273) internal successors, (965), 11 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:32,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 203.0) internal successors, (2436), 12 states have internal predecessors, (2436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:32,340 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 203.0) internal successors, (2436), 12 states have internal predecessors, (2436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:32,340 INFO L185 Difference]: Start difference. First operand has 127 places, 153 transitions, 4153 flow. Second operand 11 states and 965 transitions. [2021-03-25 02:47:32,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 167 transitions, 4941 flow [2021-03-25 02:47:32,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 167 transitions, 4832 flow, removed 28 selfloop flow, removed 4 redundant places. [2021-03-25 02:47:32,387 INFO L241 Difference]: Finished difference. Result has 136 places, 167 transitions, 4784 flow [2021-03-25 02:47:32,387 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=4044, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4784, PETRI_PLACES=136, PETRI_TRANSITIONS=167} [2021-03-25 02:47:32,387 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 105 predicate places. [2021-03-25 02:47:32,387 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:32,387 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 167 transitions, 4784 flow [2021-03-25 02:47:32,387 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 167 transitions, 4784 flow [2021-03-25 02:47:32,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 136 places, 167 transitions, 4784 flow [2021-03-25 02:47:32,420 INFO L129 PetriNetUnfolder]: 118/366 cut-off events. [2021-03-25 02:47:32,420 INFO L130 PetriNetUnfolder]: For 11992/12165 co-relation queries the response was YES. [2021-03-25 02:47:32,422 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3660 conditions, 366 events. 118/366 cut-off events. For 11992/12165 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2372 event pairs, 0 based on Foata normal form. 3/292 useless extension candidates. Maximal degree in co-relation 3604. Up to 154 conditions per place. [2021-03-25 02:47:32,425 INFO L142 LiptonReduction]: Number of co-enabled transitions 916 [2021-03-25 02:47:32,683 INFO L154 LiptonReduction]: Checked pairs total: 596 [2021-03-25 02:47:32,684 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-25 02:47:32,684 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 297 [2021-03-25 02:47:32,684 INFO L480 AbstractCegarLoop]: Abstraction has has 136 places, 167 transitions, 4793 flow [2021-03-25 02:47:32,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:32,685 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:32,685 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:32,909 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-03-25 02:47:32,909 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:32,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:32,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1360476026, now seen corresponding path program 1 times [2021-03-25 02:47:32,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:32,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886942561] [2021-03-25 02:47:32,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:32,929 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:32,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:32,934 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:47:32,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:32,939 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-25 02:47:32,940 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:32,950 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:32,950 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:32,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:32,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886942561] [2021-03-25 02:47:32,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:32,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:32,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95795694] [2021-03-25 02:47:32,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 02:47:32,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:32,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 02:47:32,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 02:47:32,962 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 211 [2021-03-25 02:47:32,963 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 167 transitions, 4793 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:32,963 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:32,963 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 211 [2021-03-25 02:47:32,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:33,320 INFO L129 PetriNetUnfolder]: 125/391 cut-off events. [2021-03-25 02:47:33,321 INFO L130 PetriNetUnfolder]: For 15081/16021 co-relation queries the response was YES. [2021-03-25 02:47:33,323 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4160 conditions, 391 events. 125/391 cut-off events. For 15081/16021 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2659 event pairs, 0 based on Foata normal form. 61/368 useless extension candidates. Maximal degree in co-relation 4102. Up to 168 conditions per place. [2021-03-25 02:47:33,326 INFO L132 encePairwiseOnDemand]: 122/211 looper letters, 27 selfloop transitions, 143 changer transitions 0/179 dead transitions. [2021-03-25 02:47:33,327 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 179 transitions, 5599 flow [2021-03-25 02:47:33,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 02:47:33,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 02:47:33,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 812 transitions. [2021-03-25 02:47:33,328 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42759347024749866 [2021-03-25 02:47:33,328 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 812 transitions. [2021-03-25 02:47:33,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 812 transitions. [2021-03-25 02:47:33,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:33,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 812 transitions. [2021-03-25 02:47:33,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 90.22222222222223) internal successors, (812), 9 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:33,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 211.0) internal successors, (2110), 10 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:33,333 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 211.0) internal successors, (2110), 10 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:33,333 INFO L185 Difference]: Start difference. First operand has 136 places, 167 transitions, 4793 flow. Second operand 9 states and 812 transitions. [2021-03-25 02:47:33,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 179 transitions, 5599 flow [2021-03-25 02:47:33,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 179 transitions, 5240 flow, removed 147 selfloop flow, removed 4 redundant places. [2021-03-25 02:47:33,388 INFO L241 Difference]: Finished difference. Result has 143 places, 176 transitions, 5293 flow [2021-03-25 02:47:33,389 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=4482, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5293, PETRI_PLACES=143, PETRI_TRANSITIONS=176} [2021-03-25 02:47:33,389 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 112 predicate places. [2021-03-25 02:47:33,389 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:33,389 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 176 transitions, 5293 flow [2021-03-25 02:47:33,389 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 176 transitions, 5293 flow [2021-03-25 02:47:33,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 143 places, 176 transitions, 5293 flow [2021-03-25 02:47:33,432 INFO L129 PetriNetUnfolder]: 125/391 cut-off events. [2021-03-25 02:47:33,432 INFO L130 PetriNetUnfolder]: For 14910/15127 co-relation queries the response was YES. [2021-03-25 02:47:33,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4108 conditions, 391 events. 125/391 cut-off events. For 14910/15127 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 2643 event pairs, 0 based on Foata normal form. 5/313 useless extension candidates. Maximal degree in co-relation 4048. Up to 162 conditions per place. [2021-03-25 02:47:33,438 INFO L142 LiptonReduction]: Number of co-enabled transitions 956 [2021-03-25 02:47:33,626 INFO L154 LiptonReduction]: Checked pairs total: 584 [2021-03-25 02:47:33,626 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 02:47:33,626 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 237 [2021-03-25 02:47:33,626 INFO L480 AbstractCegarLoop]: Abstraction has has 143 places, 176 transitions, 5306 flow [2021-03-25 02:47:33,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:33,627 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:33,627 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:33,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-25 02:47:33,627 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:33,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:33,627 INFO L82 PathProgramCache]: Analyzing trace with hash 408246851, now seen corresponding path program 1 times [2021-03-25 02:47:33,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:33,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185466119] [2021-03-25 02:47:33,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:33,641 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:33,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:33,646 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:47:33,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:33,652 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-25 02:47:33,652 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:33,663 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:33,664 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:33,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:33,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185466119] [2021-03-25 02:47:33,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:33,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:33,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540876798] [2021-03-25 02:47:33,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 02:47:33,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:33,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 02:47:33,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 02:47:33,675 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 218 [2021-03-25 02:47:33,676 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 176 transitions, 5306 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:33,676 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:33,676 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 218 [2021-03-25 02:47:33,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:34,020 INFO L129 PetriNetUnfolder]: 130/408 cut-off events. [2021-03-25 02:47:34,020 INFO L130 PetriNetUnfolder]: For 17320/18022 co-relation queries the response was YES. [2021-03-25 02:47:34,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4545 conditions, 408 events. 130/408 cut-off events. For 17320/18022 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 2774 event pairs, 0 based on Foata normal form. 64/385 useless extension candidates. Maximal degree in co-relation 4483. Up to 172 conditions per place. [2021-03-25 02:47:34,025 INFO L132 encePairwiseOnDemand]: 120/218 looper letters, 18 selfloop transitions, 158 changer transitions 0/185 dead transitions. [2021-03-25 02:47:34,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 185 transitions, 5994 flow [2021-03-25 02:47:34,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 02:47:34,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 02:47:34,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 818 transitions. [2021-03-25 02:47:34,045 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4169215086646279 [2021-03-25 02:47:34,045 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 818 transitions. [2021-03-25 02:47:34,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 818 transitions. [2021-03-25 02:47:34,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:34,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 818 transitions. [2021-03-25 02:47:34,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 90.88888888888889) internal successors, (818), 9 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:34,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 218.0) internal successors, (2180), 10 states have internal predecessors, (2180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:34,049 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 218.0) internal successors, (2180), 10 states have internal predecessors, (2180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:34,049 INFO L185 Difference]: Start difference. First operand has 143 places, 176 transitions, 5306 flow. Second operand 9 states and 818 transitions. [2021-03-25 02:47:34,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 185 transitions, 5994 flow [2021-03-25 02:47:34,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 185 transitions, 5826 flow, removed 44 selfloop flow, removed 5 redundant places. [2021-03-25 02:47:34,110 INFO L241 Difference]: Finished difference. Result has 149 places, 184 transitions, 5932 flow [2021-03-25 02:47:34,110 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=5138, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5932, PETRI_PLACES=149, PETRI_TRANSITIONS=184} [2021-03-25 02:47:34,111 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 118 predicate places. [2021-03-25 02:47:34,111 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:34,111 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 184 transitions, 5932 flow [2021-03-25 02:47:34,111 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 184 transitions, 5932 flow [2021-03-25 02:47:34,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 149 places, 184 transitions, 5932 flow [2021-03-25 02:47:34,151 INFO L129 PetriNetUnfolder]: 130/408 cut-off events. [2021-03-25 02:47:34,151 INFO L130 PetriNetUnfolder]: For 17514/17760 co-relation queries the response was YES. [2021-03-25 02:47:34,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4591 conditions, 408 events. 130/408 cut-off events. For 17514/17760 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 2802 event pairs, 0 based on Foata normal form. 5/327 useless extension candidates. Maximal degree in co-relation 4528. Up to 169 conditions per place. [2021-03-25 02:47:34,157 INFO L142 LiptonReduction]: Number of co-enabled transitions 994 [2021-03-25 02:47:34,253 INFO L154 LiptonReduction]: Checked pairs total: 366 [2021-03-25 02:47:34,253 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 02:47:34,253 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 142 [2021-03-25 02:47:34,253 INFO L480 AbstractCegarLoop]: Abstraction has has 149 places, 184 transitions, 5932 flow [2021-03-25 02:47:34,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:34,254 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:34,254 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:34,254 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-25 02:47:34,254 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:34,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:34,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1426554386, now seen corresponding path program 1 times [2021-03-25 02:47:34,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:34,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355292156] [2021-03-25 02:47:34,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:34,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 02:47:34,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 02:47:34,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:34,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355292156] [2021-03-25 02:47:34,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974330928] [2021-03-25 02:47:34,272 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 [2021-03-25 02:47:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:34,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2021-03-25 02:47:34,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:34,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 02:47:34,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 02:47:34,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 02:47:34,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 02:47:34,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:34,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:34,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:34,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:34,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:34,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:34,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 02:47:34,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 02:47:34,363 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-03-25 02:47:34,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:34,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 02:47:34,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:34,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-25 02:47:34,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-03-25 02:47:34,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283226425] [2021-03-25 02:47:34,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 02:47:34,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:34,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 02:47:34,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 02:47:34,370 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 222 [2021-03-25 02:47:34,371 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 184 transitions, 5932 flow. Second operand has 4 states, 4 states have (on average 157.25) internal successors, (629), 4 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:34,371 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:34,371 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 222 [2021-03-25 02:47:34,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:34,517 INFO L129 PetriNetUnfolder]: 124/400 cut-off events. [2021-03-25 02:47:34,517 INFO L130 PetriNetUnfolder]: For 18428/18768 co-relation queries the response was YES. [2021-03-25 02:47:34,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4696 conditions, 400 events. 124/400 cut-off events. For 18428/18768 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 2751 event pairs, 0 based on Foata normal form. 57/372 useless extension candidates. Maximal degree in co-relation 4631. Up to 163 conditions per place. [2021-03-25 02:47:34,523 INFO L132 encePairwiseOnDemand]: 218/222 looper letters, 59 selfloop transitions, 3 changer transitions 0/182 dead transitions. [2021-03-25 02:47:34,523 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 182 transitions, 5983 flow [2021-03-25 02:47:34,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 02:47:34,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 02:47:34,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 665 transitions. [2021-03-25 02:47:34,525 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7488738738738738 [2021-03-25 02:47:34,525 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 665 transitions. [2021-03-25 02:47:34,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 665 transitions. [2021-03-25 02:47:34,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:34,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 665 transitions. [2021-03-25 02:47:34,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 166.25) internal successors, (665), 4 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:34,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:34,527 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:34,527 INFO L185 Difference]: Start difference. First operand has 149 places, 184 transitions, 5932 flow. Second operand 4 states and 665 transitions. [2021-03-25 02:47:34,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 182 transitions, 5983 flow [2021-03-25 02:47:34,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 182 transitions, 5767 flow, removed 55 selfloop flow, removed 6 redundant places. [2021-03-25 02:47:34,581 INFO L241 Difference]: Finished difference. Result has 148 places, 182 transitions, 5658 flow [2021-03-25 02:47:34,581 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=5641, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=5658, PETRI_PLACES=148, PETRI_TRANSITIONS=182} [2021-03-25 02:47:34,581 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 117 predicate places. [2021-03-25 02:47:34,582 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:34,582 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 182 transitions, 5658 flow [2021-03-25 02:47:34,582 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 182 transitions, 5658 flow [2021-03-25 02:47:34,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 148 places, 182 transitions, 5658 flow [2021-03-25 02:47:34,621 INFO L129 PetriNetUnfolder]: 124/398 cut-off events. [2021-03-25 02:47:34,621 INFO L130 PetriNetUnfolder]: For 15689/15965 co-relation queries the response was YES. [2021-03-25 02:47:34,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4492 conditions, 398 events. 124/398 cut-off events. For 15689/15965 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 2750 event pairs, 0 based on Foata normal form. 5/374 useless extension candidates. Maximal degree in co-relation 4429. Up to 160 conditions per place. [2021-03-25 02:47:34,626 INFO L142 LiptonReduction]: Number of co-enabled transitions 974 [2021-03-25 02:47:34,679 INFO L154 LiptonReduction]: Checked pairs total: 18 [2021-03-25 02:47:34,680 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 02:47:34,680 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 98 [2021-03-25 02:47:34,680 INFO L480 AbstractCegarLoop]: Abstraction has has 148 places, 182 transitions, 5659 flow [2021-03-25 02:47:34,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 157.25) internal successors, (629), 4 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:34,680 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:34,680 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:34,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 02:47:34,896 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:34,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:34,896 INFO L82 PathProgramCache]: Analyzing trace with hash 232238410, now seen corresponding path program 1 times [2021-03-25 02:47:34,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:34,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408389666] [2021-03-25 02:47:34,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:34,910 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:34,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:34,915 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:47:34,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:34,921 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-03-25 02:47:34,922 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-03-25 02:47:34,935 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:34,936 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:34,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:34,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408389666] [2021-03-25 02:47:34,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:34,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:34,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104967471] [2021-03-25 02:47:34,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 02:47:34,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:34,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 02:47:34,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 02:47:34,947 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 223 [2021-03-25 02:47:34,947 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 182 transitions, 5659 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:34,947 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:34,947 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 223 [2021-03-25 02:47:34,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:35,241 INFO L129 PetriNetUnfolder]: 125/403 cut-off events. [2021-03-25 02:47:35,242 INFO L130 PetriNetUnfolder]: For 17547/18649 co-relation queries the response was YES. [2021-03-25 02:47:35,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4784 conditions, 403 events. 125/403 cut-off events. For 17547/18649 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 2780 event pairs, 0 based on Foata normal form. 65/440 useless extension candidates. Maximal degree in co-relation 4719. Up to 163 conditions per place. [2021-03-25 02:47:35,246 INFO L132 encePairwiseOnDemand]: 159/223 looper letters, 82 selfloop transitions, 99 changer transitions 0/191 dead transitions. [2021-03-25 02:47:35,246 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 191 transitions, 6321 flow [2021-03-25 02:47:35,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 02:47:35,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 02:47:35,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 652 transitions. [2021-03-25 02:47:35,248 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4176809737347854 [2021-03-25 02:47:35,248 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 652 transitions. [2021-03-25 02:47:35,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 652 transitions. [2021-03-25 02:47:35,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:35,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 652 transitions. [2021-03-25 02:47:35,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 93.14285714285714) internal successors, (652), 7 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:35,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 223.0) internal successors, (1784), 8 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:35,250 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 223.0) internal successors, (1784), 8 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:35,250 INFO L185 Difference]: Start difference. First operand has 148 places, 182 transitions, 5659 flow. Second operand 7 states and 652 transitions. [2021-03-25 02:47:35,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 191 transitions, 6321 flow [2021-03-25 02:47:35,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 191 transitions, 6317 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 02:47:35,300 INFO L241 Difference]: Finished difference. Result has 154 places, 183 transitions, 5957 flow [2021-03-25 02:47:35,300 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=5655, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5957, PETRI_PLACES=154, PETRI_TRANSITIONS=183} [2021-03-25 02:47:35,300 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 123 predicate places. [2021-03-25 02:47:35,300 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:35,300 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 154 places, 183 transitions, 5957 flow [2021-03-25 02:47:35,300 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 154 places, 183 transitions, 5957 flow [2021-03-25 02:47:35,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 154 places, 183 transitions, 5957 flow [2021-03-25 02:47:35,340 INFO L129 PetriNetUnfolder]: 125/403 cut-off events. [2021-03-25 02:47:35,340 INFO L130 PetriNetUnfolder]: For 17306/17692 co-relation queries the response was YES. [2021-03-25 02:47:35,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4713 conditions, 403 events. 125/403 cut-off events. For 17306/17692 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 2793 event pairs, 0 based on Foata normal form. 5/380 useless extension candidates. Maximal degree in co-relation 4648. Up to 163 conditions per place. [2021-03-25 02:47:35,345 INFO L142 LiptonReduction]: Number of co-enabled transitions 980 [2021-03-25 02:47:35,417 INFO L154 LiptonReduction]: Checked pairs total: 81 [2021-03-25 02:47:35,418 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 02:47:35,418 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 118 [2021-03-25 02:47:35,418 INFO L480 AbstractCegarLoop]: Abstraction has has 154 places, 183 transitions, 5957 flow [2021-03-25 02:47:35,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:35,418 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:35,418 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:35,419 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-25 02:47:35,419 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:35,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:35,419 INFO L82 PathProgramCache]: Analyzing trace with hash 685103781, now seen corresponding path program 1 times [2021-03-25 02:47:35,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:35,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299814660] [2021-03-25 02:47:35,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:35,432 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:35,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:35,437 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:47:35,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:35,442 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-25 02:47:35,443 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:35,453 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:35,454 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:35,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:35,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299814660] [2021-03-25 02:47:35,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:35,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:35,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071095587] [2021-03-25 02:47:35,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 02:47:35,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:35,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 02:47:35,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 02:47:35,465 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 224 [2021-03-25 02:47:35,465 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 183 transitions, 5957 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:35,465 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:35,465 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 224 [2021-03-25 02:47:35,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:35,801 INFO L129 PetriNetUnfolder]: 131/425 cut-off events. [2021-03-25 02:47:35,801 INFO L130 PetriNetUnfolder]: For 20043/20865 co-relation queries the response was YES. [2021-03-25 02:47:35,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5202 conditions, 425 events. 131/425 cut-off events. For 20043/20865 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 2996 event pairs, 0 based on Foata normal form. 48/443 useless extension candidates. Maximal degree in co-relation 5135. Up to 175 conditions per place. [2021-03-25 02:47:35,807 INFO L132 encePairwiseOnDemand]: 121/224 looper letters, 17 selfloop transitions, 164 changer transitions 0/191 dead transitions. [2021-03-25 02:47:35,808 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 191 transitions, 6630 flow [2021-03-25 02:47:35,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 02:47:35,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 02:47:35,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 824 transitions. [2021-03-25 02:47:35,809 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4087301587301587 [2021-03-25 02:47:35,809 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 824 transitions. [2021-03-25 02:47:35,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 824 transitions. [2021-03-25 02:47:35,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:35,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 824 transitions. [2021-03-25 02:47:35,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 91.55555555555556) internal successors, (824), 9 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:35,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 224.0) internal successors, (2240), 10 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:35,811 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 224.0) internal successors, (2240), 10 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:35,811 INFO L185 Difference]: Start difference. First operand has 154 places, 183 transitions, 5957 flow. Second operand 9 states and 824 transitions. [2021-03-25 02:47:35,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 191 transitions, 6630 flow [2021-03-25 02:47:35,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 191 transitions, 6501 flow, removed 11 selfloop flow, removed 4 redundant places. [2021-03-25 02:47:35,868 INFO L241 Difference]: Finished difference. Result has 161 places, 190 transitions, 6604 flow [2021-03-25 02:47:35,868 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=5829, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6604, PETRI_PLACES=161, PETRI_TRANSITIONS=190} [2021-03-25 02:47:35,868 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 130 predicate places. [2021-03-25 02:47:35,869 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:35,869 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 190 transitions, 6604 flow [2021-03-25 02:47:35,869 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 190 transitions, 6604 flow [2021-03-25 02:47:35,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 161 places, 190 transitions, 6604 flow [2021-03-25 02:47:35,911 INFO L129 PetriNetUnfolder]: 131/425 cut-off events. [2021-03-25 02:47:35,911 INFO L130 PetriNetUnfolder]: For 20368/20611 co-relation queries the response was YES. [2021-03-25 02:47:35,913 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5255 conditions, 425 events. 131/425 cut-off events. For 20368/20611 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 2984 event pairs, 0 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 5187. Up to 175 conditions per place. [2021-03-25 02:47:35,916 INFO L142 LiptonReduction]: Number of co-enabled transitions 1018 [2021-03-25 02:47:36,019 INFO L154 LiptonReduction]: Checked pairs total: 290 [2021-03-25 02:47:36,019 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 02:47:36,020 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 151 [2021-03-25 02:47:36,020 INFO L480 AbstractCegarLoop]: Abstraction has has 161 places, 190 transitions, 6606 flow [2021-03-25 02:47:36,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:36,020 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:36,020 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:36,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-25 02:47:36,020 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:36,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:36,021 INFO L82 PathProgramCache]: Analyzing trace with hash -276458906, now seen corresponding path program 1 times [2021-03-25 02:47:36,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:36,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832770513] [2021-03-25 02:47:36,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:36,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:36,035 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:36,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:36,040 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:47:36,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:36,047 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-03-25 02:47:36,047 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-03-25 02:47:36,061 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-25 02:47:36,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:47:36,069 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:36,070 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:36,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:36,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832770513] [2021-03-25 02:47:36,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229986247] [2021-03-25 02:47:36,082 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 [2021-03-25 02:47:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:36,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-25 02:47:36,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:36,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:36,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:36,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:36,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:36,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:36,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:36,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:36,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:36,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:36,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:36,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:36,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:36,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:36,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:36,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:36,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:36,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:36,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:36,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:36,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:36,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:36,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:36,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:36,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:36,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:36,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:36,176 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-25 02:47:36,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 02:47:36,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 02:47:36,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:36,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:36,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:36,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:36,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:36,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:36,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:36,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:36,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:36,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:36,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,209 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-25 02:47:36,210 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-25 02:47:36,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:47:36,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:36,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:36,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 02:47:36,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:36,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:47:36,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 02:47:36,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:36,234 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-25 02:47:36,235 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-25 02:47:36,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:36,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:36,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:36,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-25 02:47:36,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993063530] [2021-03-25 02:47:36,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 02:47:36,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:36,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 02:47:36,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-03-25 02:47:36,248 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 227 [2021-03-25 02:47:36,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 190 transitions, 6606 flow. Second operand has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:36,249 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:36,249 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 227 [2021-03-25 02:47:36,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:36,703 INFO L129 PetriNetUnfolder]: 132/432 cut-off events. [2021-03-25 02:47:36,703 INFO L130 PetriNetUnfolder]: For 22034/22806 co-relation queries the response was YES. [2021-03-25 02:47:36,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5571 conditions, 432 events. 132/432 cut-off events. For 22034/22806 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 3066 event pairs, 0 based on Foata normal form. 32/432 useless extension candidates. Maximal degree in co-relation 5501. Up to 178 conditions per place. [2021-03-25 02:47:36,711 INFO L132 encePairwiseOnDemand]: 154/227 looper letters, 70 selfloop transitions, 121 changer transitions 0/201 dead transitions. [2021-03-25 02:47:36,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 201 transitions, 7418 flow [2021-03-25 02:47:36,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 02:47:36,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 02:47:36,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 901 transitions. [2021-03-25 02:47:36,766 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3969162995594714 [2021-03-25 02:47:36,766 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 901 transitions. [2021-03-25 02:47:36,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 901 transitions. [2021-03-25 02:47:36,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:36,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 901 transitions. [2021-03-25 02:47:36,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 90.1) internal successors, (901), 10 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:36,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 227.0) internal successors, (2497), 11 states have internal predecessors, (2497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:36,769 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 227.0) internal successors, (2497), 11 states have internal predecessors, (2497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:36,769 INFO L185 Difference]: Start difference. First operand has 161 places, 190 transitions, 6606 flow. Second operand 10 states and 901 transitions. [2021-03-25 02:47:36,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 201 transitions, 7418 flow [2021-03-25 02:47:36,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 201 transitions, 7218 flow, removed 61 selfloop flow, removed 4 redundant places. [2021-03-25 02:47:36,869 INFO L241 Difference]: Finished difference. Result has 168 places, 200 transitions, 7143 flow [2021-03-25 02:47:36,869 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=6427, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7143, PETRI_PLACES=168, PETRI_TRANSITIONS=200} [2021-03-25 02:47:36,869 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 137 predicate places. [2021-03-25 02:47:36,869 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:36,869 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 168 places, 200 transitions, 7143 flow [2021-03-25 02:47:36,869 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 168 places, 200 transitions, 7143 flow [2021-03-25 02:47:36,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 168 places, 200 transitions, 7143 flow [2021-03-25 02:47:36,930 INFO L129 PetriNetUnfolder]: 132/432 cut-off events. [2021-03-25 02:47:36,930 INFO L130 PetriNetUnfolder]: For 21077/21291 co-relation queries the response was YES. [2021-03-25 02:47:36,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5407 conditions, 432 events. 132/432 cut-off events. For 21077/21291 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 3132 event pairs, 0 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 5336. Up to 173 conditions per place. [2021-03-25 02:47:36,939 INFO L142 LiptonReduction]: Number of co-enabled transitions 1062 [2021-03-25 02:47:37,040 INFO L154 LiptonReduction]: Checked pairs total: 96 [2021-03-25 02:47:37,040 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 02:47:37,040 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 171 [2021-03-25 02:47:37,040 INFO L480 AbstractCegarLoop]: Abstraction has has 168 places, 200 transitions, 7148 flow [2021-03-25 02:47:37,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:37,041 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:37,041 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:37,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 02:47:37,260 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:37,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:37,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1326867934, now seen corresponding path program 1 times [2021-03-25 02:47:37,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:37,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610966201] [2021-03-25 02:47:37,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:37,276 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:37,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:37,281 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 02:47:37,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:37,288 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 02:47:37,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:37,294 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:37,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:37,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:37,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610966201] [2021-03-25 02:47:37,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:37,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:37,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146831929] [2021-03-25 02:47:37,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 02:47:37,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:37,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 02:47:37,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 02:47:37,301 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 229 [2021-03-25 02:47:37,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 200 transitions, 7148 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:37,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:37,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 229 [2021-03-25 02:47:37,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:37,625 INFO L129 PetriNetUnfolder]: 138/451 cut-off events. [2021-03-25 02:47:37,625 INFO L130 PetriNetUnfolder]: For 24134/24906 co-relation queries the response was YES. [2021-03-25 02:47:37,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5935 conditions, 451 events. 138/451 cut-off events. For 24134/24906 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 3256 event pairs, 0 based on Foata normal form. 32/450 useless extension candidates. Maximal degree in co-relation 5862. Up to 187 conditions per place. [2021-03-25 02:47:37,630 INFO L132 encePairwiseOnDemand]: 166/229 looper letters, 101 selfloop transitions, 99 changer transitions 0/210 dead transitions. [2021-03-25 02:47:37,630 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 210 transitions, 7977 flow [2021-03-25 02:47:37,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 02:47:37,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 02:47:37,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 823 transitions. [2021-03-25 02:47:37,632 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3993207180980107 [2021-03-25 02:47:37,632 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 823 transitions. [2021-03-25 02:47:37,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 823 transitions. [2021-03-25 02:47:37,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:37,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 823 transitions. [2021-03-25 02:47:37,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 91.44444444444444) internal successors, (823), 9 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:37,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 229.0) internal successors, (2290), 10 states have internal predecessors, (2290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:37,635 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 229.0) internal successors, (2290), 10 states have internal predecessors, (2290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:37,635 INFO L185 Difference]: Start difference. First operand has 168 places, 200 transitions, 7148 flow. Second operand 9 states and 823 transitions. [2021-03-25 02:47:37,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 210 transitions, 7977 flow [2021-03-25 02:47:37,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 210 transitions, 7619 flow, removed 121 selfloop flow, removed 4 redundant places. [2021-03-25 02:47:37,712 INFO L241 Difference]: Finished difference. Result has 175 places, 209 transitions, 7494 flow [2021-03-25 02:47:37,712 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=6791, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7494, PETRI_PLACES=175, PETRI_TRANSITIONS=209} [2021-03-25 02:47:37,713 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 144 predicate places. [2021-03-25 02:47:37,713 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:37,713 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 209 transitions, 7494 flow [2021-03-25 02:47:37,713 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 209 transitions, 7494 flow [2021-03-25 02:47:37,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 175 places, 209 transitions, 7494 flow [2021-03-25 02:47:37,760 INFO L129 PetriNetUnfolder]: 138/451 cut-off events. [2021-03-25 02:47:37,760 INFO L130 PetriNetUnfolder]: For 24838/25099 co-relation queries the response was YES. [2021-03-25 02:47:37,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5746 conditions, 451 events. 138/451 cut-off events. For 24838/25099 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 3273 event pairs, 0 based on Foata normal form. 1/419 useless extension candidates. Maximal degree in co-relation 5672. Up to 165 conditions per place. [2021-03-25 02:47:37,766 INFO L142 LiptonReduction]: Number of co-enabled transitions 1104 [2021-03-25 02:47:37,889 INFO L154 LiptonReduction]: Checked pairs total: 678 [2021-03-25 02:47:37,890 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-25 02:47:37,890 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 177 [2021-03-25 02:47:37,890 INFO L480 AbstractCegarLoop]: Abstraction has has 175 places, 209 transitions, 7500 flow [2021-03-25 02:47:37,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:37,890 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:37,890 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:37,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-25 02:47:37,890 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:37,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:37,891 INFO L82 PathProgramCache]: Analyzing trace with hash -236614823, now seen corresponding path program 1 times [2021-03-25 02:47:37,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:37,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066084937] [2021-03-25 02:47:37,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:37,906 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:37,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:37,911 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:47:37,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:37,917 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-25 02:47:37,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:37,924 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-25 02:47:37,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:47:37,932 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:37,932 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:37,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:37,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066084937] [2021-03-25 02:47:37,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028218557] [2021-03-25 02:47:37,943 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 [2021-03-25 02:47:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:38,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-25 02:47:38,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:38,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:38,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:38,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:38,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:38,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:38,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:38,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:38,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:38,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:38,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:38,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:38,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:38,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:38,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:38,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:38,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:38,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:38,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:38,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:38,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:38,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:38,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:38,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:38,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:38,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:38,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:38,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:38,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:38,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:38,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:38,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:38,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:38,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:38,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:38,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,052 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-25 02:47:38,052 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-25 02:47:38,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:38,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 02:47:38,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 02:47:38,066 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-03-25 02:47:38,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 02:47:38,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 02:47:38,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:38,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:38,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 02:47:38,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:38,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:47:38,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 02:47:38,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:38,103 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-25 02:47:38,104 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-25 02:47:38,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:38,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:38,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:38,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-25 02:47:38,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258460445] [2021-03-25 02:47:38,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 02:47:38,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:38,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 02:47:38,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-03-25 02:47:38,116 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 235 [2021-03-25 02:47:38,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 209 transitions, 7500 flow. Second operand has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:38,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:38,116 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 235 [2021-03-25 02:47:38,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:38,729 INFO L129 PetriNetUnfolder]: 140/462 cut-off events. [2021-03-25 02:47:38,730 INFO L130 PetriNetUnfolder]: For 27018/28336 co-relation queries the response was YES. [2021-03-25 02:47:38,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6132 conditions, 462 events. 140/462 cut-off events. For 27018/28336 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 3373 event pairs, 0 based on Foata normal form. 32/459 useless extension candidates. Maximal degree in co-relation 6056. Up to 170 conditions per place. [2021-03-25 02:47:38,739 INFO L132 encePairwiseOnDemand]: 123/235 looper letters, 22 selfloop transitions, 183 changer transitions 0/215 dead transitions. [2021-03-25 02:47:38,739 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 215 transitions, 8163 flow [2021-03-25 02:47:38,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 02:47:38,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 02:47:38,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 912 transitions. [2021-03-25 02:47:38,740 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3880851063829787 [2021-03-25 02:47:38,741 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 912 transitions. [2021-03-25 02:47:38,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 912 transitions. [2021-03-25 02:47:38,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:38,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 912 transitions. [2021-03-25 02:47:38,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 91.2) internal successors, (912), 10 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:38,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 235.0) internal successors, (2585), 11 states have internal predecessors, (2585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:38,744 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 235.0) internal successors, (2585), 11 states have internal predecessors, (2585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:38,744 INFO L185 Difference]: Start difference. First operand has 175 places, 209 transitions, 7500 flow. Second operand 10 states and 912 transitions. [2021-03-25 02:47:38,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 215 transitions, 8163 flow [2021-03-25 02:47:38,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 215 transitions, 8050 flow, removed 42 selfloop flow, removed 4 redundant places. [2021-03-25 02:47:38,838 INFO L241 Difference]: Finished difference. Result has 183 places, 213 transitions, 8114 flow [2021-03-25 02:47:38,838 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=7405, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=179, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8114, PETRI_PLACES=183, PETRI_TRANSITIONS=213} [2021-03-25 02:47:38,838 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 152 predicate places. [2021-03-25 02:47:38,839 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:38,839 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 183 places, 213 transitions, 8114 flow [2021-03-25 02:47:38,839 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 183 places, 213 transitions, 8114 flow [2021-03-25 02:47:38,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 183 places, 213 transitions, 8114 flow [2021-03-25 02:47:38,889 INFO L129 PetriNetUnfolder]: 140/458 cut-off events. [2021-03-25 02:47:38,889 INFO L130 PetriNetUnfolder]: For 27188/27576 co-relation queries the response was YES. [2021-03-25 02:47:38,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6153 conditions, 458 events. 140/458 cut-off events. For 27188/27576 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 3340 event pairs, 0 based on Foata normal form. 2/426 useless extension candidates. Maximal degree in co-relation 6075. Up to 170 conditions per place. [2021-03-25 02:47:38,896 INFO L142 LiptonReduction]: Number of co-enabled transitions 1124 [2021-03-25 02:47:38,958 INFO L154 LiptonReduction]: Checked pairs total: 230 [2021-03-25 02:47:38,959 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 02:47:38,959 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 120 [2021-03-25 02:47:38,959 INFO L480 AbstractCegarLoop]: Abstraction has has 183 places, 213 transitions, 8116 flow [2021-03-25 02:47:38,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:38,959 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:38,959 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:39,163 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-03-25 02:47:39,164 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:39,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:39,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1793523250, now seen corresponding path program 1 times [2021-03-25 02:47:39,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:39,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896016422] [2021-03-25 02:47:39,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:39,177 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:39,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:39,181 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-25 02:47:39,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:39,188 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-25 02:47:39,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:39,195 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-25 02:47:39,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:39,203 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:39,204 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:39,215 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:39,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896016422] [2021-03-25 02:47:39,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437861260] [2021-03-25 02:47:39,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-25 02:47:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:39,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-25 02:47:39,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:39,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:39,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:39,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:39,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:39,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:39,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:39,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:39,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:39,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:39,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:39,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:39,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:39,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:39,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:39,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:39,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:39,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:39,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:39,278 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-25 02:47:39,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:39,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:39,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:39,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:39,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:39,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:39,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:39,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:39,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:39,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:39,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:39,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:39,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:39,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:39,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:39,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:39,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:39,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:39,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:39,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:39,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:39,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:39,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:39,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:39,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:39,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:39,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:39,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:39,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:39,332 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-25 02:47:39,333 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-25 02:47:39,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:39,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:39,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:39,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-25 02:47:39,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707490278] [2021-03-25 02:47:39,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 02:47:39,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:39,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 02:47:39,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-03-25 02:47:39,346 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 237 [2021-03-25 02:47:39,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 213 transitions, 8116 flow. Second operand has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:39,346 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:39,346 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 237 [2021-03-25 02:47:39,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:39,693 INFO L129 PetriNetUnfolder]: 142/468 cut-off events. [2021-03-25 02:47:39,693 INFO L130 PetriNetUnfolder]: For 29374/30803 co-relation queries the response was YES. [2021-03-25 02:47:39,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6528 conditions, 468 events. 142/468 cut-off events. For 29374/30803 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 3411 event pairs, 0 based on Foata normal form. 32/465 useless extension candidates. Maximal degree in co-relation 6448. Up to 247 conditions per place. [2021-03-25 02:47:39,698 INFO L132 encePairwiseOnDemand]: 210/237 looper letters, 177 selfloop transitions, 32 changer transitions 0/219 dead transitions. [2021-03-25 02:47:39,698 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 219 transitions, 8747 flow [2021-03-25 02:47:39,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 02:47:39,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 02:47:39,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 666 transitions. [2021-03-25 02:47:39,699 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4014466546112116 [2021-03-25 02:47:39,699 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 666 transitions. [2021-03-25 02:47:39,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 666 transitions. [2021-03-25 02:47:39,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:39,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 666 transitions. [2021-03-25 02:47:39,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 95.14285714285714) internal successors, (666), 7 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:39,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 237.0) internal successors, (1896), 8 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:39,702 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 237.0) internal successors, (1896), 8 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:39,702 INFO L185 Difference]: Start difference. First operand has 183 places, 213 transitions, 8116 flow. Second operand 7 states and 666 transitions. [2021-03-25 02:47:39,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 219 transitions, 8747 flow [2021-03-25 02:47:39,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 219 transitions, 8394 flow, removed 121 selfloop flow, removed 4 redundant places. [2021-03-25 02:47:39,814 INFO L241 Difference]: Finished difference. Result has 187 places, 216 transitions, 7972 flow [2021-03-25 02:47:39,814 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=7768, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=7972, PETRI_PLACES=187, PETRI_TRANSITIONS=216} [2021-03-25 02:47:39,814 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 156 predicate places. [2021-03-25 02:47:39,814 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:39,814 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 187 places, 216 transitions, 7972 flow [2021-03-25 02:47:39,814 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 187 places, 216 transitions, 7972 flow [2021-03-25 02:47:39,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 187 places, 216 transitions, 7972 flow [2021-03-25 02:47:39,863 INFO L129 PetriNetUnfolder]: 142/468 cut-off events. [2021-03-25 02:47:39,864 INFO L130 PetriNetUnfolder]: For 26826/27092 co-relation queries the response was YES. [2021-03-25 02:47:39,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6110 conditions, 468 events. 142/468 cut-off events. For 26826/27092 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 3439 event pairs, 0 based on Foata normal form. 0/432 useless extension candidates. Maximal degree in co-relation 6030. Up to 155 conditions per place. [2021-03-25 02:47:39,872 INFO L142 LiptonReduction]: Number of co-enabled transitions 1138 [2021-03-25 02:47:39,959 INFO L154 LiptonReduction]: Checked pairs total: 103 [2021-03-25 02:47:39,959 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 02:47:39,960 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 146 [2021-03-25 02:47:39,960 INFO L480 AbstractCegarLoop]: Abstraction has has 187 places, 216 transitions, 8014 flow [2021-03-25 02:47:39,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:39,960 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:39,960 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:40,163 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-03-25 02:47:40,164 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:40,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:40,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1328302707, now seen corresponding path program 1 times [2021-03-25 02:47:40,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:40,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903329549] [2021-03-25 02:47:40,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:40,176 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:40,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,180 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-25 02:47:40,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:40,186 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-25 02:47:40,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:40,193 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:40,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:40,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903329549] [2021-03-25 02:47:40,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207809894] [2021-03-25 02:47:40,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-25 02:47:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:40,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 02:47:40,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:40,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:40,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:40,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:40,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:40,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:40,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:40,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:40,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:40,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:40,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:40,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:40,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:40,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:40,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:40,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:40,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:40,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:40,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:40,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:40,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:40,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:40,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:40,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:40,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:40,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:40,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 02:47:40,319 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-03-25 02:47:40,319 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-25 02:47:40,320 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-25 02:47:40,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:40,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:40,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:40,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 02:47:40,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954962336] [2021-03-25 02:47:40,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 02:47:40,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:40,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 02:47:40,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-03-25 02:47:40,326 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 239 [2021-03-25 02:47:40,327 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 216 transitions, 8014 flow. Second operand has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:40,327 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:40,327 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 239 [2021-03-25 02:47:40,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:40,727 INFO L129 PetriNetUnfolder]: 146/481 cut-off events. [2021-03-25 02:47:40,727 INFO L130 PetriNetUnfolder]: For 29460/30779 co-relation queries the response was YES. [2021-03-25 02:47:40,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6585 conditions, 481 events. 146/481 cut-off events. For 29460/30779 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 3558 event pairs, 0 based on Foata normal form. 32/476 useless extension candidates. Maximal degree in co-relation 6503. Up to 248 conditions per place. [2021-03-25 02:47:40,732 INFO L132 encePairwiseOnDemand]: 207/239 looper letters, 172 selfloop transitions, 44 changer transitions 0/226 dead transitions. [2021-03-25 02:47:40,732 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 226 transitions, 8836 flow [2021-03-25 02:47:40,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 02:47:40,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 02:47:40,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 828 transitions. [2021-03-25 02:47:40,740 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38493723849372385 [2021-03-25 02:47:40,740 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 828 transitions. [2021-03-25 02:47:40,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 828 transitions. [2021-03-25 02:47:40,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:40,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 828 transitions. [2021-03-25 02:47:40,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 92.0) internal successors, (828), 9 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:40,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 239.0) internal successors, (2390), 10 states have internal predecessors, (2390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:40,743 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 239.0) internal successors, (2390), 10 states have internal predecessors, (2390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:40,743 INFO L185 Difference]: Start difference. First operand has 187 places, 216 transitions, 8014 flow. Second operand 9 states and 828 transitions. [2021-03-25 02:47:40,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 226 transitions, 8836 flow [2021-03-25 02:47:40,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 226 transitions, 8718 flow, removed 33 selfloop flow, removed 5 redundant places. [2021-03-25 02:47:40,843 INFO L241 Difference]: Finished difference. Result has 193 places, 223 transitions, 8324 flow [2021-03-25 02:47:40,843 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=7898, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8324, PETRI_PLACES=193, PETRI_TRANSITIONS=223} [2021-03-25 02:47:40,843 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 162 predicate places. [2021-03-25 02:47:40,844 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:40,844 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 193 places, 223 transitions, 8324 flow [2021-03-25 02:47:40,844 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 193 places, 223 transitions, 8324 flow [2021-03-25 02:47:40,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 193 places, 223 transitions, 8324 flow [2021-03-25 02:47:40,893 INFO L129 PetriNetUnfolder]: 146/481 cut-off events. [2021-03-25 02:47:40,894 INFO L130 PetriNetUnfolder]: For 29695/29961 co-relation queries the response was YES. [2021-03-25 02:47:40,896 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6397 conditions, 481 events. 146/481 cut-off events. For 29695/29961 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 3601 event pairs, 0 based on Foata normal form. 0/443 useless extension candidates. Maximal degree in co-relation 6315. Up to 160 conditions per place. [2021-03-25 02:47:40,900 INFO L142 LiptonReduction]: Number of co-enabled transitions 1176 [2021-03-25 02:47:41,013 INFO L154 LiptonReduction]: Checked pairs total: 244 [2021-03-25 02:47:41,014 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 02:47:41,014 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 170 [2021-03-25 02:47:41,014 INFO L480 AbstractCegarLoop]: Abstraction has has 193 places, 223 transitions, 8332 flow [2021-03-25 02:47:41,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:41,014 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:41,014 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:41,215 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-03-25 02:47:41,216 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:41,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:41,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1793630107, now seen corresponding path program 1 times [2021-03-25 02:47:41,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:41,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766019453] [2021-03-25 02:47:41,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:41,229 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:41,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:41,234 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-25 02:47:41,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:41,241 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-25 02:47:41,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:41,248 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-25 02:47:41,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:41,256 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:41,256 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:41,267 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:41,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766019453] [2021-03-25 02:47:41,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561999909] [2021-03-25 02:47:41,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 02:47:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:41,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-25 02:47:41,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:41,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:41,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:41,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:41,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:41,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:41,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:41,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:41,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:41,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:41,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:41,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:41,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:41,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:41,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:41,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:41,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:41,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:41,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:41,368 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-25 02:47:41,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:41,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:41,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:41,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:41,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:41,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:41,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:41,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:41,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:41,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:41,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:41,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:41,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:41,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:41,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:41,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:41,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 02:47:41,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:41,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:41,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 02:47:41,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:41,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:41,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:41,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:41,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:41,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:41,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:41,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:41,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:41,429 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-25 02:47:41,429 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-25 02:47:41,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:41,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:41,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:41,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-25 02:47:41,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693195457] [2021-03-25 02:47:41,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 02:47:41,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:41,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 02:47:41,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-03-25 02:47:41,445 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 242 [2021-03-25 02:47:41,445 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 223 transitions, 8332 flow. Second operand has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:41,445 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:41,445 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 242 [2021-03-25 02:47:41,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:41,840 INFO L129 PetriNetUnfolder]: 148/489 cut-off events. [2021-03-25 02:47:41,840 INFO L130 PetriNetUnfolder]: For 32394/33726 co-relation queries the response was YES. [2021-03-25 02:47:41,843 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6799 conditions, 489 events. 148/489 cut-off events. For 32394/33726 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 3599 event pairs, 0 based on Foata normal form. 34/485 useless extension candidates. Maximal degree in co-relation 6715. Up to 255 conditions per place. [2021-03-25 02:47:41,847 INFO L132 encePairwiseOnDemand]: 212/242 looper letters, 183 selfloop transitions, 36 changer transitions 0/229 dead transitions. [2021-03-25 02:47:41,847 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 229 transitions, 9018 flow [2021-03-25 02:47:41,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 02:47:41,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 02:47:41,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 670 transitions. [2021-03-25 02:47:41,857 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3955135773317591 [2021-03-25 02:47:41,857 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 670 transitions. [2021-03-25 02:47:41,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 670 transitions. [2021-03-25 02:47:41,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:41,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 670 transitions. [2021-03-25 02:47:41,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 95.71428571428571) internal successors, (670), 7 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:41,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 242.0) internal successors, (1936), 8 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:41,859 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 242.0) internal successors, (1936), 8 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:41,859 INFO L185 Difference]: Start difference. First operand has 193 places, 223 transitions, 8332 flow. Second operand 7 states and 670 transitions. [2021-03-25 02:47:41,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 229 transitions, 9018 flow [2021-03-25 02:47:41,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 229 transitions, 8767 flow, removed 110 selfloop flow, removed 5 redundant places. [2021-03-25 02:47:41,990 INFO L241 Difference]: Finished difference. Result has 196 places, 226 transitions, 8333 flow [2021-03-25 02:47:41,990 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=8081, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=8333, PETRI_PLACES=196, PETRI_TRANSITIONS=226} [2021-03-25 02:47:41,990 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 165 predicate places. [2021-03-25 02:47:41,990 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:41,990 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 226 transitions, 8333 flow [2021-03-25 02:47:41,990 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 196 places, 226 transitions, 8333 flow [2021-03-25 02:47:41,993 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 196 places, 226 transitions, 8333 flow [2021-03-25 02:47:42,044 INFO L129 PetriNetUnfolder]: 148/489 cut-off events. [2021-03-25 02:47:42,044 INFO L130 PetriNetUnfolder]: For 31472/31719 co-relation queries the response was YES. [2021-03-25 02:47:42,047 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6487 conditions, 489 events. 148/489 cut-off events. For 31472/31719 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 3663 event pairs, 0 based on Foata normal form. 1/452 useless extension candidates. Maximal degree in co-relation 6402. Up to 158 conditions per place. [2021-03-25 02:47:42,052 INFO L142 LiptonReduction]: Number of co-enabled transitions 1190 [2021-03-25 02:47:42,114 INFO L154 LiptonReduction]: Checked pairs total: 208 [2021-03-25 02:47:42,114 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 02:47:42,115 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 125 [2021-03-25 02:47:42,115 INFO L480 AbstractCegarLoop]: Abstraction has has 196 places, 226 transitions, 8333 flow [2021-03-25 02:47:42,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:42,115 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:42,115 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:42,315 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 02:47:42,315 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:42,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:42,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1595524733, now seen corresponding path program 1 times [2021-03-25 02:47:42,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:42,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393186661] [2021-03-25 02:47:42,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:42,336 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:42,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:42,341 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-25 02:47:42,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:42,347 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-25 02:47:42,348 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:42,360 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:42,360 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:42,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:42,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393186661] [2021-03-25 02:47:42,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:42,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:42,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977539669] [2021-03-25 02:47:42,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 02:47:42,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:42,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 02:47:42,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 02:47:42,374 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 244 [2021-03-25 02:47:42,375 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 226 transitions, 8333 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:42,375 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:42,375 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 244 [2021-03-25 02:47:42,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:42,763 INFO L129 PetriNetUnfolder]: 157/517 cut-off events. [2021-03-25 02:47:42,764 INFO L130 PetriNetUnfolder]: For 38788/40120 co-relation queries the response was YES. [2021-03-25 02:47:42,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7234 conditions, 517 events. 157/517 cut-off events. For 38788/40120 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 3849 event pairs, 0 based on Foata normal form. 35/512 useless extension candidates. Maximal degree in co-relation 7147. Up to 197 conditions per place. [2021-03-25 02:47:42,772 INFO L132 encePairwiseOnDemand]: 167/244 looper letters, 101 selfloop transitions, 125 changer transitions 0/236 dead transitions. [2021-03-25 02:47:42,772 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 236 transitions, 9282 flow [2021-03-25 02:47:42,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 02:47:42,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 02:47:42,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 843 transitions. [2021-03-25 02:47:42,773 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.383879781420765 [2021-03-25 02:47:42,774 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 843 transitions. [2021-03-25 02:47:42,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 843 transitions. [2021-03-25 02:47:42,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:42,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 843 transitions. [2021-03-25 02:47:42,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 93.66666666666667) internal successors, (843), 9 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:42,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 244.0) internal successors, (2440), 10 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:42,776 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 244.0) internal successors, (2440), 10 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:42,777 INFO L185 Difference]: Start difference. First operand has 196 places, 226 transitions, 8333 flow. Second operand 9 states and 843 transitions. [2021-03-25 02:47:42,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 236 transitions, 9282 flow [2021-03-25 02:47:42,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 236 transitions, 9133 flow, removed 49 selfloop flow, removed 4 redundant places. [2021-03-25 02:47:42,926 INFO L241 Difference]: Finished difference. Result has 203 places, 235 transitions, 9027 flow [2021-03-25 02:47:42,927 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=8191, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9027, PETRI_PLACES=203, PETRI_TRANSITIONS=235} [2021-03-25 02:47:42,927 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 172 predicate places. [2021-03-25 02:47:42,927 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:42,927 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 235 transitions, 9027 flow [2021-03-25 02:47:42,927 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 235 transitions, 9027 flow [2021-03-25 02:47:42,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 203 places, 235 transitions, 9027 flow [2021-03-25 02:47:42,985 INFO L129 PetriNetUnfolder]: 157/515 cut-off events. [2021-03-25 02:47:42,986 INFO L130 PetriNetUnfolder]: For 37566/37929 co-relation queries the response was YES. [2021-03-25 02:47:42,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7150 conditions, 515 events. 157/515 cut-off events. For 37566/37929 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 3873 event pairs, 0 based on Foata normal form. 1/477 useless extension candidates. Maximal degree in co-relation 7062. Up to 172 conditions per place. [2021-03-25 02:47:42,993 INFO L142 LiptonReduction]: Number of co-enabled transitions 1236 [2021-03-25 02:47:43,195 INFO L154 LiptonReduction]: Checked pairs total: 657 [2021-03-25 02:47:43,195 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-25 02:47:43,195 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 268 [2021-03-25 02:47:43,196 INFO L480 AbstractCegarLoop]: Abstraction has has 203 places, 235 transitions, 9051 flow [2021-03-25 02:47:43,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:43,196 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:43,196 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:43,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-25 02:47:43,196 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:43,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:43,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1327890965, now seen corresponding path program 1 times [2021-03-25 02:47:43,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:43,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706388134] [2021-03-25 02:47:43,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:43,209 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:43,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,214 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-25 02:47:43,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:43,219 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-03-25 02:47:43,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:47:43,226 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-25 02:47:43,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:43,234 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:43,234 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:43,245 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:43,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706388134] [2021-03-25 02:47:43,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631537414] [2021-03-25 02:47:43,245 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 [2021-03-25 02:47:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:43,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-25 02:47:43,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:43,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:43,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:43,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:43,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:43,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:43,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:43,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:43,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:43,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:43,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:43,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:43,344 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-03-25 02:47:43,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:47:43,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:47:43,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:43,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:43,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:43,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:43,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:43,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:43,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:43,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:43,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:43,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:43,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:43,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:43,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:43,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:43,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:43,377 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-25 02:47:43,378 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-25 02:47:43,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:43,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:43,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:43,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-25 02:47:43,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222307500] [2021-03-25 02:47:43,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 02:47:43,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:43,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 02:47:43,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-03-25 02:47:43,392 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 250 [2021-03-25 02:47:43,393 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 235 transitions, 9051 flow. Second operand has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:43,393 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:43,393 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 250 [2021-03-25 02:47:43,393 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:43,887 INFO L129 PetriNetUnfolder]: 159/523 cut-off events. [2021-03-25 02:47:43,888 INFO L130 PetriNetUnfolder]: For 40532/41999 co-relation queries the response was YES. [2021-03-25 02:47:43,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7590 conditions, 523 events. 159/523 cut-off events. For 40532/41999 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 3927 event pairs, 0 based on Foata normal form. 36/519 useless extension candidates. Maximal degree in co-relation 7500. Up to 266 conditions per place. [2021-03-25 02:47:43,894 INFO L132 encePairwiseOnDemand]: 213/250 looper letters, 186 selfloop transitions, 45 changer transitions 0/241 dead transitions. [2021-03-25 02:47:43,894 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 241 transitions, 9793 flow [2021-03-25 02:47:43,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 02:47:43,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 02:47:43,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 832 transitions. [2021-03-25 02:47:43,895 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36977777777777776 [2021-03-25 02:47:43,895 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 832 transitions. [2021-03-25 02:47:43,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 832 transitions. [2021-03-25 02:47:43,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:43,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 832 transitions. [2021-03-25 02:47:43,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 92.44444444444444) internal successors, (832), 9 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:43,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 250.0) internal successors, (2500), 10 states have internal predecessors, (2500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:43,898 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 250.0) internal successors, (2500), 10 states have internal predecessors, (2500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:43,898 INFO L185 Difference]: Start difference. First operand has 203 places, 235 transitions, 9051 flow. Second operand 9 states and 832 transitions. [2021-03-25 02:47:43,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 241 transitions, 9793 flow [2021-03-25 02:47:44,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 241 transitions, 9612 flow, removed 60 selfloop flow, removed 3 redundant places. [2021-03-25 02:47:44,028 INFO L241 Difference]: Finished difference. Result has 209 places, 236 transitions, 9062 flow [2021-03-25 02:47:44,028 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=8895, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9062, PETRI_PLACES=209, PETRI_TRANSITIONS=236} [2021-03-25 02:47:44,028 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 178 predicate places. [2021-03-25 02:47:44,028 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:44,028 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 209 places, 236 transitions, 9062 flow [2021-03-25 02:47:44,029 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 209 places, 236 transitions, 9062 flow [2021-03-25 02:47:44,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 209 places, 236 transitions, 9062 flow [2021-03-25 02:47:44,085 INFO L129 PetriNetUnfolder]: 159/521 cut-off events. [2021-03-25 02:47:44,085 INFO L130 PetriNetUnfolder]: For 37030/37395 co-relation queries the response was YES. [2021-03-25 02:47:44,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7213 conditions, 521 events. 159/521 cut-off events. For 37030/37395 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 3940 event pairs, 0 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 7124. Up to 177 conditions per place. [2021-03-25 02:47:44,093 INFO L142 LiptonReduction]: Number of co-enabled transitions 1242 [2021-03-25 02:47:44,216 INFO L154 LiptonReduction]: Checked pairs total: 327 [2021-03-25 02:47:44,217 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 02:47:44,217 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 189 [2021-03-25 02:47:44,217 INFO L480 AbstractCegarLoop]: Abstraction has has 209 places, 236 transitions, 9111 flow [2021-03-25 02:47:44,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:44,217 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:44,217 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:44,418 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-03-25 02:47:44,418 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:44,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:44,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1223328833, now seen corresponding path program 1 times [2021-03-25 02:47:44,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:44,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179316779] [2021-03-25 02:47:44,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:44,436 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:44,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:44,441 INFO L142 QuantifierPusher]: treesize reduction 13, result has 45.8 percent of original size [2021-03-25 02:47:44,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:44,446 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 02:47:44,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:44,452 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:44,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:44,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:44,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179316779] [2021-03-25 02:47:44,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 02:47:44,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 02:47:44,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15674352] [2021-03-25 02:47:44,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 02:47:44,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:44,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 02:47:44,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 02:47:44,460 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 254 [2021-03-25 02:47:44,460 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 236 transitions, 9111 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:44,460 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:44,460 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 254 [2021-03-25 02:47:44,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:44,966 INFO L129 PetriNetUnfolder]: 166/546 cut-off events. [2021-03-25 02:47:44,966 INFO L130 PetriNetUnfolder]: For 42311/43778 co-relation queries the response was YES. [2021-03-25 02:47:44,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7929 conditions, 546 events. 166/546 cut-off events. For 42311/43778 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 4151 event pairs, 0 based on Foata normal form. 36/541 useless extension candidates. Maximal degree in co-relation 7838. Up to 219 conditions per place. [2021-03-25 02:47:44,972 INFO L132 encePairwiseOnDemand]: 172/254 looper letters, 112 selfloop transitions, 130 changer transitions 0/252 dead transitions. [2021-03-25 02:47:44,972 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 252 transitions, 10351 flow [2021-03-25 02:47:44,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 02:47:44,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 02:47:44,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 854 transitions. [2021-03-25 02:47:44,974 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37357830271216097 [2021-03-25 02:47:44,974 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 854 transitions. [2021-03-25 02:47:44,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 854 transitions. [2021-03-25 02:47:44,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:44,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 854 transitions. [2021-03-25 02:47:44,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 94.88888888888889) internal successors, (854), 9 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:44,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 254.0) internal successors, (2540), 10 states have internal predecessors, (2540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:44,977 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 254.0) internal successors, (2540), 10 states have internal predecessors, (2540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:44,977 INFO L185 Difference]: Start difference. First operand has 209 places, 236 transitions, 9111 flow. Second operand 9 states and 854 transitions. [2021-03-25 02:47:44,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 252 transitions, 10351 flow [2021-03-25 02:47:45,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 252 transitions, 10218 flow, removed 37 selfloop flow, removed 5 redundant places. [2021-03-25 02:47:45,096 INFO L241 Difference]: Finished difference. Result has 215 places, 251 transitions, 10093 flow [2021-03-25 02:47:45,096 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=8998, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10093, PETRI_PLACES=215, PETRI_TRANSITIONS=251} [2021-03-25 02:47:45,096 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 184 predicate places. [2021-03-25 02:47:45,096 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:45,096 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 215 places, 251 transitions, 10093 flow [2021-03-25 02:47:45,096 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 215 places, 251 transitions, 10093 flow [2021-03-25 02:47:45,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 215 places, 251 transitions, 10093 flow [2021-03-25 02:47:45,158 INFO L129 PetriNetUnfolder]: 166/546 cut-off events. [2021-03-25 02:47:45,158 INFO L130 PetriNetUnfolder]: For 40463/41432 co-relation queries the response was YES. [2021-03-25 02:47:45,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7765 conditions, 546 events. 166/546 cut-off events. For 40463/41432 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 4204 event pairs, 0 based on Foata normal form. 6/512 useless extension candidates. Maximal degree in co-relation 7673. Up to 190 conditions per place. [2021-03-25 02:47:45,168 INFO L142 LiptonReduction]: Number of co-enabled transitions 1312 [2021-03-25 02:47:45,299 INFO L154 LiptonReduction]: Checked pairs total: 774 [2021-03-25 02:47:45,300 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-25 02:47:45,300 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 204 [2021-03-25 02:47:45,300 INFO L480 AbstractCegarLoop]: Abstraction has has 215 places, 251 transitions, 10097 flow [2021-03-25 02:47:45,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:45,300 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:45,300 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:45,300 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-25 02:47:45,300 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:45,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:45,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1286420773, now seen corresponding path program 1 times [2021-03-25 02:47:45,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:45,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591407813] [2021-03-25 02:47:45,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:45,313 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:45,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,317 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-25 02:47:45,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:45,323 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-25 02:47:45,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:45,330 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:45,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:45,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591407813] [2021-03-25 02:47:45,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085630009] [2021-03-25 02:47:45,337 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 [2021-03-25 02:47:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:45,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 02:47:45,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:45,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:45,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:45,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:45,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:45,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:45,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:45,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:45,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:45,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:45,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:45,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:45,428 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-03-25 02:47:45,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:45,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:45,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:45,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:45,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:45,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:45,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:45,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:45,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:45,447 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-25 02:47:45,447 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-25 02:47:45,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:45,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:45,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:45,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 02:47:45,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846616106] [2021-03-25 02:47:45,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 02:47:45,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:45,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 02:47:45,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-03-25 02:47:45,455 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 260 [2021-03-25 02:47:45,455 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 251 transitions, 10097 flow. Second operand has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:45,455 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:45,455 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 260 [2021-03-25 02:47:45,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:45,811 INFO L129 PetriNetUnfolder]: 169/558 cut-off events. [2021-03-25 02:47:45,812 INFO L130 PetriNetUnfolder]: For 43541/45223 co-relation queries the response was YES. [2021-03-25 02:47:45,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8265 conditions, 558 events. 169/558 cut-off events. For 43541/45223 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 4302 event pairs, 0 based on Foata normal form. 36/551 useless extension candidates. Maximal degree in co-relation 8171. Up to 275 conditions per place. [2021-03-25 02:47:45,819 INFO L132 encePairwiseOnDemand]: 216/260 looper letters, 190 selfloop transitions, 58 changer transitions 0/258 dead transitions. [2021-03-25 02:47:45,819 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 258 transitions, 10912 flow [2021-03-25 02:47:45,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 02:47:45,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 02:47:45,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 690 transitions. [2021-03-25 02:47:45,820 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3791208791208791 [2021-03-25 02:47:45,820 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 690 transitions. [2021-03-25 02:47:45,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 690 transitions. [2021-03-25 02:47:45,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:45,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 690 transitions. [2021-03-25 02:47:45,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 98.57142857142857) internal successors, (690), 7 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:45,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 260.0) internal successors, (2080), 8 states have internal predecessors, (2080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:45,822 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 260.0) internal successors, (2080), 8 states have internal predecessors, (2080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:45,822 INFO L185 Difference]: Start difference. First operand has 215 places, 251 transitions, 10097 flow. Second operand 7 states and 690 transitions. [2021-03-25 02:47:45,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 258 transitions, 10912 flow [2021-03-25 02:47:45,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 258 transitions, 10691 flow, removed 100 selfloop flow, removed 2 redundant places. [2021-03-25 02:47:45,964 INFO L241 Difference]: Finished difference. Result has 220 places, 253 transitions, 10171 flow [2021-03-25 02:47:45,965 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=9906, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=10171, PETRI_PLACES=220, PETRI_TRANSITIONS=253} [2021-03-25 02:47:45,965 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 189 predicate places. [2021-03-25 02:47:45,965 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:45,965 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 220 places, 253 transitions, 10171 flow [2021-03-25 02:47:45,965 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 220 places, 253 transitions, 10171 flow [2021-03-25 02:47:45,968 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 220 places, 253 transitions, 10171 flow [2021-03-25 02:47:46,028 INFO L129 PetriNetUnfolder]: 169/560 cut-off events. [2021-03-25 02:47:46,028 INFO L130 PetriNetUnfolder]: For 41270/42199 co-relation queries the response was YES. [2021-03-25 02:47:46,031 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7941 conditions, 560 events. 169/560 cut-off events. For 41270/42199 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 4320 event pairs, 0 based on Foata normal form. 3/519 useless extension candidates. Maximal degree in co-relation 7847. Up to 191 conditions per place. [2021-03-25 02:47:46,037 INFO L142 LiptonReduction]: Number of co-enabled transitions 1322 [2021-03-25 02:47:46,120 INFO L154 LiptonReduction]: Checked pairs total: 121 [2021-03-25 02:47:46,120 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 02:47:46,120 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 155 [2021-03-25 02:47:46,120 INFO L480 AbstractCegarLoop]: Abstraction has has 220 places, 253 transitions, 10255 flow [2021-03-25 02:47:46,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:46,120 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:46,120 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:46,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 02:47:46,321 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:46,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:46,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1393097419, now seen corresponding path program 1 times [2021-03-25 02:47:46,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:46,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814250124] [2021-03-25 02:47:46,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:46,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:46,335 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:46,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,339 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-25 02:47:46,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:46,350 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-25 02:47:46,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:46,357 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-25 02:47:46,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:46,366 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:47:46,366 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:47:46,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:46,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814250124] [2021-03-25 02:47:46,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596236874] [2021-03-25 02:47:46,389 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 [2021-03-25 02:47:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:46,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-25 02:47:46,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:46,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:46,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:46,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:46,474 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-25 02:47:46,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:46,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:46,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:46,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:46,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:46,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:46,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:46,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:46,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:46,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:46,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:46,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:46,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 02:47:46,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:46,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:46,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 02:47:46,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:46,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:46,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:46,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:46,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:46,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:46,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:46,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:46,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:46,528 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-25 02:47:46,529 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-25 02:47:46,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:46,542 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:46,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:46,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-25 02:47:46,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088164042] [2021-03-25 02:47:46,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 02:47:46,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:46,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 02:47:46,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-03-25 02:47:46,545 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 262 [2021-03-25 02:47:46,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 253 transitions, 10255 flow. Second operand has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:46,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:46,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 262 [2021-03-25 02:47:46,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:46,971 INFO L129 PetriNetUnfolder]: 171/568 cut-off events. [2021-03-25 02:47:46,971 INFO L130 PetriNetUnfolder]: For 48502/50184 co-relation queries the response was YES. [2021-03-25 02:47:46,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8513 conditions, 568 events. 171/568 cut-off events. For 48502/50184 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 4399 event pairs, 0 based on Foata normal form. 36/559 useless extension candidates. Maximal degree in co-relation 8417. Up to 294 conditions per place. [2021-03-25 02:47:46,979 INFO L132 encePairwiseOnDemand]: 228/262 looper letters, 209 selfloop transitions, 41 changer transitions 0/260 dead transitions. [2021-03-25 02:47:46,979 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 260 transitions, 11066 flow [2021-03-25 02:47:46,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 02:47:46,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 02:47:46,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 688 transitions. [2021-03-25 02:47:46,980 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3751363140676118 [2021-03-25 02:47:46,980 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 688 transitions. [2021-03-25 02:47:46,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 688 transitions. [2021-03-25 02:47:46,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:46,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 688 transitions. [2021-03-25 02:47:46,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 98.28571428571429) internal successors, (688), 7 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:46,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 262.0) internal successors, (2096), 8 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:46,982 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 262.0) internal successors, (2096), 8 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:46,982 INFO L185 Difference]: Start difference. First operand has 220 places, 253 transitions, 10255 flow. Second operand 7 states and 688 transitions. [2021-03-25 02:47:46,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 260 transitions, 11066 flow [2021-03-25 02:47:47,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 260 transitions, 10941 flow, removed 15 selfloop flow, removed 5 redundant places. [2021-03-25 02:47:47,126 INFO L241 Difference]: Finished difference. Result has 223 places, 256 transitions, 10413 flow [2021-03-25 02:47:47,126 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=10130, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=10413, PETRI_PLACES=223, PETRI_TRANSITIONS=256} [2021-03-25 02:47:47,126 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 192 predicate places. [2021-03-25 02:47:47,126 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:47,126 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 223 places, 256 transitions, 10413 flow [2021-03-25 02:47:47,127 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 223 places, 256 transitions, 10413 flow [2021-03-25 02:47:47,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 223 places, 256 transitions, 10413 flow [2021-03-25 02:47:47,193 INFO L129 PetriNetUnfolder]: 171/568 cut-off events. [2021-03-25 02:47:47,193 INFO L130 PetriNetUnfolder]: For 47084/48157 co-relation queries the response was YES. [2021-03-25 02:47:47,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8207 conditions, 568 events. 171/568 cut-off events. For 47084/48157 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 4448 event pairs, 0 based on Foata normal form. 6/527 useless extension candidates. Maximal degree in co-relation 8112. Up to 195 conditions per place. [2021-03-25 02:47:47,202 INFO L142 LiptonReduction]: Number of co-enabled transitions 1336 [2021-03-25 02:47:47,261 INFO L154 LiptonReduction]: Checked pairs total: 116 [2021-03-25 02:47:47,261 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 02:47:47,261 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 135 [2021-03-25 02:47:47,261 INFO L480 AbstractCegarLoop]: Abstraction has has 223 places, 256 transitions, 10413 flow [2021-03-25 02:47:47,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:47,261 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:47,261 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:47,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-03-25 02:47:47,462 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:47,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:47,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1286437681, now seen corresponding path program 1 times [2021-03-25 02:47:47,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:47,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384303447] [2021-03-25 02:47:47,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:47,476 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 02:47:47,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,481 INFO L142 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-03-25 02:47:47,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:47,488 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-03-25 02:47:47,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:47,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:47,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384303447] [2021-03-25 02:47:47,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312100168] [2021-03-25 02:47:47,500 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 [2021-03-25 02:47:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:47,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 02:47:47,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:47,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:47,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:47,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:47,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:47,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:47,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:47,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:47,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:47,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:47,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:47,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:47,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:47,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:47,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:47,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:47,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:47:47,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:47,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:47,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:47:47,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:47,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:47,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:47,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:47,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-03-25 02:47:47,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740838238] [2021-03-25 02:47:47,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 02:47:47,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:47,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 02:47:47,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-03-25 02:47:47,616 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 263 [2021-03-25 02:47:47,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 256 transitions, 10413 flow. Second operand has 8 states, 8 states have (on average 86.0) internal successors, (688), 8 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:47,617 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:47,617 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 263 [2021-03-25 02:47:47,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:48,064 INFO L129 PetriNetUnfolder]: 176/583 cut-off events. [2021-03-25 02:47:48,064 INFO L130 PetriNetUnfolder]: For 50565/52247 co-relation queries the response was YES. [2021-03-25 02:47:48,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8830 conditions, 583 events. 176/583 cut-off events. For 50565/52247 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 4512 event pairs, 0 based on Foata normal form. 20/556 useless extension candidates. Maximal degree in co-relation 8733. Up to 308 conditions per place. [2021-03-25 02:47:48,091 INFO L132 encePairwiseOnDemand]: 223/263 looper letters, 205 selfloop transitions, 48 changer transitions 0/263 dead transitions. [2021-03-25 02:47:48,091 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 263 transitions, 11361 flow [2021-03-25 02:47:48,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 02:47:48,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 02:47:48,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 670 transitions. [2021-03-25 02:47:48,092 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42458808618504434 [2021-03-25 02:47:48,092 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 670 transitions. [2021-03-25 02:47:48,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 670 transitions. [2021-03-25 02:47:48,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:48,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 670 transitions. [2021-03-25 02:47:48,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 111.66666666666667) internal successors, (670), 6 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:48,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 263.0) internal successors, (1841), 7 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:48,094 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 263.0) internal successors, (1841), 7 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:48,094 INFO L185 Difference]: Start difference. First operand has 223 places, 256 transitions, 10413 flow. Second operand 6 states and 670 transitions. [2021-03-25 02:47:48,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 263 transitions, 11361 flow [2021-03-25 02:47:48,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 263 transitions, 11212 flow, removed 47 selfloop flow, removed 4 redundant places. [2021-03-25 02:47:48,240 INFO L241 Difference]: Finished difference. Result has 226 places, 262 transitions, 10753 flow [2021-03-25 02:47:48,240 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=10264, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=10753, PETRI_PLACES=226, PETRI_TRANSITIONS=262} [2021-03-25 02:47:48,241 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 195 predicate places. [2021-03-25 02:47:48,241 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:48,241 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 226 places, 262 transitions, 10753 flow [2021-03-25 02:47:48,241 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 226 places, 262 transitions, 10753 flow [2021-03-25 02:47:48,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 226 places, 262 transitions, 10753 flow [2021-03-25 02:47:48,317 INFO L129 PetriNetUnfolder]: 176/583 cut-off events. [2021-03-25 02:47:48,317 INFO L130 PetriNetUnfolder]: For 50097/51039 co-relation queries the response was YES. [2021-03-25 02:47:48,320 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8556 conditions, 583 events. 176/583 cut-off events. For 50097/51039 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 4569 event pairs, 0 based on Foata normal form. 5/541 useless extension candidates. Maximal degree in co-relation 8459. Up to 201 conditions per place. [2021-03-25 02:47:48,326 INFO L142 LiptonReduction]: Number of co-enabled transitions 1364 [2021-03-25 02:47:48,390 INFO L154 LiptonReduction]: Checked pairs total: 118 [2021-03-25 02:47:48,390 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 02:47:48,390 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 149 [2021-03-25 02:47:48,390 INFO L480 AbstractCegarLoop]: Abstraction has has 226 places, 262 transitions, 10753 flow [2021-03-25 02:47:48,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 86.0) internal successors, (688), 8 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:48,390 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:48,390 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:48,590 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-03-25 02:47:48,591 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:48,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:48,591 INFO L82 PathProgramCache]: Analyzing trace with hash 19713014, now seen corresponding path program 1 times [2021-03-25 02:47:48,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:48,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963828223] [2021-03-25 02:47:48,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:48,607 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:48,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:48,611 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:47:48,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:48,617 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-03-25 02:47:48,618 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-03-25 02:47:48,631 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-25 02:47:48,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:48,639 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-25 02:47:48,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:47:48,648 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:48,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:48,656 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:48,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963828223] [2021-03-25 02:47:48,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427616994] [2021-03-25 02:47:48,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 02:47:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:48,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 02:47:48,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:48,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:48,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:48,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:48,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:48,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:48,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:48,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:48,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:48,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:48,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:48,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:48,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:48,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:48,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:48,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:48,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:48,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:48,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:48,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:48,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:48,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:48,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:48,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:48,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:48,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:48,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:48,774 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-25 02:47:48,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 02:47:48,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 02:47:48,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:48,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:48,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:48,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:48,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:48,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:48,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:48,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:48,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:48,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:48,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,805 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-25 02:47:48,805 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-25 02:47:48,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:47:48,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:48,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:48,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 02:47:48,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:48,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:48,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 02:47:48,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 02:47:48,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 02:47:48,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:48,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:48,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 02:47:48,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:48,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 02:47:48,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 02:47:48,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:48,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:48,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:48,858 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:48,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:48,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 02:47:48,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142370338] [2021-03-25 02:47:48,858 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-25 02:47:48,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:48,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-25 02:47:48,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-03-25 02:47:48,860 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 264 [2021-03-25 02:47:48,861 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 262 transitions, 10753 flow. Second operand has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:48,861 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:48,861 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 264 [2021-03-25 02:47:48,861 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:49,551 INFO L129 PetriNetUnfolder]: 183/614 cut-off events. [2021-03-25 02:47:49,552 INFO L130 PetriNetUnfolder]: For 55903/57585 co-relation queries the response was YES. [2021-03-25 02:47:49,555 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9337 conditions, 614 events. 183/614 cut-off events. For 55903/57585 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 4869 event pairs, 0 based on Foata normal form. 36/597 useless extension candidates. Maximal degree in co-relation 9238. Up to 214 conditions per place. [2021-03-25 02:47:49,559 INFO L132 encePairwiseOnDemand]: 180/264 looper letters, 122 selfloop transitions, 143 changer transitions 0/275 dead transitions. [2021-03-25 02:47:49,559 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 275 transitions, 11926 flow [2021-03-25 02:47:49,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 02:47:49,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 02:47:49,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1255 transitions. [2021-03-25 02:47:49,561 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33955627705627706 [2021-03-25 02:47:49,561 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1255 transitions. [2021-03-25 02:47:49,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1255 transitions. [2021-03-25 02:47:49,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:49,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1255 transitions. [2021-03-25 02:47:49,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 89.64285714285714) internal successors, (1255), 14 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:49,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 264.0) internal successors, (3960), 15 states have internal predecessors, (3960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:49,565 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 264.0) internal successors, (3960), 15 states have internal predecessors, (3960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:49,565 INFO L185 Difference]: Start difference. First operand has 226 places, 262 transitions, 10753 flow. Second operand 14 states and 1255 transitions. [2021-03-25 02:47:49,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 275 transitions, 11926 flow [2021-03-25 02:47:49,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 275 transitions, 11575 flow, removed 155 selfloop flow, removed 3 redundant places. [2021-03-25 02:47:49,741 INFO L241 Difference]: Finished difference. Result has 239 places, 272 transitions, 11291 flow [2021-03-25 02:47:49,741 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=10408, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=11291, PETRI_PLACES=239, PETRI_TRANSITIONS=272} [2021-03-25 02:47:49,741 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 208 predicate places. [2021-03-25 02:47:49,741 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:49,741 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 272 transitions, 11291 flow [2021-03-25 02:47:49,741 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 272 transitions, 11291 flow [2021-03-25 02:47:49,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 239 places, 272 transitions, 11291 flow [2021-03-25 02:47:49,825 INFO L129 PetriNetUnfolder]: 183/614 cut-off events. [2021-03-25 02:47:49,826 INFO L130 PetriNetUnfolder]: For 53646/54590 co-relation queries the response was YES. [2021-03-25 02:47:49,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8983 conditions, 614 events. 183/614 cut-off events. For 53646/54590 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 4921 event pairs, 0 based on Foata normal form. 4/565 useless extension candidates. Maximal degree in co-relation 8883. Up to 200 conditions per place. [2021-03-25 02:47:49,835 INFO L142 LiptonReduction]: Number of co-enabled transitions 1406 [2021-03-25 02:47:50,093 INFO L154 LiptonReduction]: Checked pairs total: 595 [2021-03-25 02:47:50,093 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 02:47:50,093 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 352 [2021-03-25 02:47:50,094 INFO L480 AbstractCegarLoop]: Abstraction has has 239 places, 272 transitions, 11319 flow [2021-03-25 02:47:50,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:50,094 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:50,094 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:50,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-03-25 02:47:50,308 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:50,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:50,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1872615329, now seen corresponding path program 1 times [2021-03-25 02:47:50,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:50,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801197853] [2021-03-25 02:47:50,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:50,320 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:50,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:50,324 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-25 02:47:50,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,331 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-25 02:47:50,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,337 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 02:47:50,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:50,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:50,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801197853] [2021-03-25 02:47:50,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512621028] [2021-03-25 02:47:50,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-25 02:47:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:50,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-25 02:47:50,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:50,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:50,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:50,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:50,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:50,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:50,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:50,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:50,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:50,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:50,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:50,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:50,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:50,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:50,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:50,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:50,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:50,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:50,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:50,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:50,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:50,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:50,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:50,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:50,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:50,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:50,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:50,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:50,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:50,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:50,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:50,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:50,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:50,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-25 02:47:50,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781952029] [2021-03-25 02:47:50,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 02:47:50,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:50,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 02:47:50,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-03-25 02:47:50,466 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 271 [2021-03-25 02:47:50,466 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 272 transitions, 11319 flow. Second operand has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:50,466 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:50,467 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 271 [2021-03-25 02:47:50,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:51,168 INFO L129 PetriNetUnfolder]: 194/653 cut-off events. [2021-03-25 02:47:51,168 INFO L130 PetriNetUnfolder]: For 63390/65002 co-relation queries the response was YES. [2021-03-25 02:47:51,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10058 conditions, 653 events. 194/653 cut-off events. For 63390/65002 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5233 event pairs, 0 based on Foata normal form. 99/693 useless extension candidates. Maximal degree in co-relation 9956. Up to 298 conditions per place. [2021-03-25 02:47:51,177 INFO L132 encePairwiseOnDemand]: 189/271 looper letters, 164 selfloop transitions, 111 changer transitions 0/285 dead transitions. [2021-03-25 02:47:51,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 285 transitions, 12624 flow [2021-03-25 02:47:51,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 02:47:51,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 02:47:51,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 951 transitions. [2021-03-25 02:47:51,178 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3899138991389914 [2021-03-25 02:47:51,178 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 951 transitions. [2021-03-25 02:47:51,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 951 transitions. [2021-03-25 02:47:51,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:51,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 951 transitions. [2021-03-25 02:47:51,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 105.66666666666667) internal successors, (951), 9 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:51,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 271.0) internal successors, (2710), 10 states have internal predecessors, (2710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:51,180 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 271.0) internal successors, (2710), 10 states have internal predecessors, (2710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:51,180 INFO L185 Difference]: Start difference. First operand has 239 places, 272 transitions, 11319 flow. Second operand 9 states and 951 transitions. [2021-03-25 02:47:51,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 285 transitions, 12624 flow [2021-03-25 02:47:51,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 285 transitions, 11883 flow, removed 298 selfloop flow, removed 7 redundant places. [2021-03-25 02:47:51,367 INFO L241 Difference]: Finished difference. Result has 242 places, 284 transitions, 11586 flow [2021-03-25 02:47:51,367 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=10764, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=11586, PETRI_PLACES=242, PETRI_TRANSITIONS=284} [2021-03-25 02:47:51,367 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 211 predicate places. [2021-03-25 02:47:51,367 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:51,368 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 284 transitions, 11586 flow [2021-03-25 02:47:51,368 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 284 transitions, 11586 flow [2021-03-25 02:47:51,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 242 places, 284 transitions, 11586 flow [2021-03-25 02:47:51,515 INFO L129 PetriNetUnfolder]: 194/653 cut-off events. [2021-03-25 02:47:51,515 INFO L130 PetriNetUnfolder]: For 61074/61943 co-relation queries the response was YES. [2021-03-25 02:47:51,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9542 conditions, 653 events. 194/653 cut-off events. For 61074/61943 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5310 event pairs, 0 based on Foata normal form. 3/598 useless extension candidates. Maximal degree in co-relation 9439. Up to 210 conditions per place. [2021-03-25 02:47:51,535 INFO L142 LiptonReduction]: Number of co-enabled transitions 1454 [2021-03-25 02:47:51,713 INFO L154 LiptonReduction]: Checked pairs total: 1025 [2021-03-25 02:47:51,713 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-25 02:47:51,713 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 346 [2021-03-25 02:47:51,713 INFO L480 AbstractCegarLoop]: Abstraction has has 242 places, 284 transitions, 11596 flow [2021-03-25 02:47:51,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:51,714 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:51,714 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:51,914 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-03-25 02:47:51,914 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:51,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:51,914 INFO L82 PathProgramCache]: Analyzing trace with hash -236630925, now seen corresponding path program 1 times [2021-03-25 02:47:51,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:51,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727800555] [2021-03-25 02:47:51,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:51,932 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:51,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:51,937 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-25 02:47:51,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:51,943 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-25 02:47:51,944 INFO L147 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size 9 [2021-03-25 02:47:51,956 INFO L142 QuantifierPusher]: treesize reduction 13, result has 35.0 percent of original size [2021-03-25 02:47:51,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:51,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:51,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727800555] [2021-03-25 02:47:51,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051780974] [2021-03-25 02:47:51,963 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 [2021-03-25 02:47:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:52,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-25 02:47:52,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:52,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:52,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:52,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:52,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:52,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:52,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:52,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:52,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:52,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:52,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:52,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:52,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:52,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:52,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:52,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:52,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:52,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:52,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:52,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,046 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-25 02:47:52,046 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-25 02:47:52,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:52,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:52,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:52,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:52,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:52,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:52,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 02:47:52,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:52,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:52,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 02:47:52,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:52,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:52,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:52,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:52,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:52,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-25 02:47:52,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809931801] [2021-03-25 02:47:52,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 02:47:52,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:52,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 02:47:52,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-03-25 02:47:52,077 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 277 [2021-03-25 02:47:52,078 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 284 transitions, 11596 flow. Second operand has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:52,078 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:52,078 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 277 [2021-03-25 02:47:52,078 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:52,795 INFO L129 PetriNetUnfolder]: 225/779 cut-off events. [2021-03-25 02:47:52,796 INFO L130 PetriNetUnfolder]: For 88919/90427 co-relation queries the response was YES. [2021-03-25 02:47:52,801 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12100 conditions, 779 events. 225/779 cut-off events. For 88919/90427 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 6449 event pairs, 0 based on Foata normal form. 25/739 useless extension candidates. Maximal degree in co-relation 11995. Up to 271 conditions per place. [2021-03-25 02:47:52,807 INFO L132 encePairwiseOnDemand]: 127/277 looper letters, 83 selfloop transitions, 227 changer transitions 0/320 dead transitions. [2021-03-25 02:47:52,807 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 320 transitions, 14149 flow [2021-03-25 02:47:52,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 02:47:52,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 02:47:52,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 992 transitions. [2021-03-25 02:47:52,808 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39791415964701166 [2021-03-25 02:47:52,808 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 992 transitions. [2021-03-25 02:47:52,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 992 transitions. [2021-03-25 02:47:52,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:52,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 992 transitions. [2021-03-25 02:47:52,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 110.22222222222223) internal successors, (992), 9 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:52,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 277.0) internal successors, (2770), 10 states have internal predecessors, (2770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:52,811 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 277.0) internal successors, (2770), 10 states have internal predecessors, (2770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:52,811 INFO L185 Difference]: Start difference. First operand has 242 places, 284 transitions, 11596 flow. Second operand 9 states and 992 transitions. [2021-03-25 02:47:52,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 320 transitions, 14149 flow [2021-03-25 02:47:53,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 320 transitions, 14011 flow, removed 55 selfloop flow, removed 2 redundant places. [2021-03-25 02:47:53,036 INFO L241 Difference]: Finished difference. Result has 250 places, 319 transitions, 14010 flow [2021-03-25 02:47:53,036 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=11462, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=14010, PETRI_PLACES=250, PETRI_TRANSITIONS=319} [2021-03-25 02:47:53,036 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 219 predicate places. [2021-03-25 02:47:53,036 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:53,036 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 250 places, 319 transitions, 14010 flow [2021-03-25 02:47:53,036 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 250 places, 319 transitions, 14010 flow [2021-03-25 02:47:53,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 250 places, 319 transitions, 14010 flow [2021-03-25 02:47:53,178 INFO L129 PetriNetUnfolder]: 225/779 cut-off events. [2021-03-25 02:47:53,178 INFO L130 PetriNetUnfolder]: For 86489/87505 co-relation queries the response was YES. [2021-03-25 02:47:53,185 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12070 conditions, 779 events. 225/779 cut-off events. For 86489/87505 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 6460 event pairs, 0 based on Foata normal form. 7/720 useless extension candidates. Maximal degree in co-relation 11964. Up to 271 conditions per place. [2021-03-25 02:47:53,197 INFO L142 LiptonReduction]: Number of co-enabled transitions 1602 [2021-03-25 02:47:53,731 INFO L154 LiptonReduction]: Checked pairs total: 4972 [2021-03-25 02:47:53,731 INFO L156 LiptonReduction]: Total number of compositions: 25 [2021-03-25 02:47:53,731 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 695 [2021-03-25 02:47:53,731 INFO L480 AbstractCegarLoop]: Abstraction has has 250 places, 319 transitions, 14054 flow [2021-03-25 02:47:53,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:53,731 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:53,732 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:53,935 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-03-25 02:47:53,936 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:53,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:53,936 INFO L82 PathProgramCache]: Analyzing trace with hash -236202121, now seen corresponding path program 1 times [2021-03-25 02:47:53,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:53,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821404404] [2021-03-25 02:47:53,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:53,948 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:53,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:53,954 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-25 02:47:53,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:53,961 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-25 02:47:53,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:53,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:53,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:53,977 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:53,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:53,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:53,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821404404] [2021-03-25 02:47:53,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627141621] [2021-03-25 02:47:53,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-25 02:47:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:54,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-25 02:47:54,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:54,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:54,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:54,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:54,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:54,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:54,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:54,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:54,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:54,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:54,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:54,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:54,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:54,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:54,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:54,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:54,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:54,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:54,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:54,048 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-25 02:47:54,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:54,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:54,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:54,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:54,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:54,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:54,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:54,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:54,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:54,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:54,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:54,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:54,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:54,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:54,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:54,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:54,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:54,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:54,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:54,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:54,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:54,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:54,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:54,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:54,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,085 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-25 02:47:54,085 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-25 02:47:54,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:47:54,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:54,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:47:54,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 02:47:54,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:54,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:47:54,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 02:47:54,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:54,107 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-25 02:47:54,107 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-25 02:47:54,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:54,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:54,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:54,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 02:47:54,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750414900] [2021-03-25 02:47:54,112 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 02:47:54,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:54,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 02:47:54,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-03-25 02:47:54,114 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 302 [2021-03-25 02:47:54,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 319 transitions, 14054 flow. Second operand has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:54,114 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:54,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 302 [2021-03-25 02:47:54,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:54,632 INFO L129 PetriNetUnfolder]: 231/803 cut-off events. [2021-03-25 02:47:54,632 INFO L130 PetriNetUnfolder]: For 93078/94722 co-relation queries the response was YES. [2021-03-25 02:47:54,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12947 conditions, 803 events. 231/803 cut-off events. For 93078/94722 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6811 event pairs, 0 based on Foata normal form. 42/778 useless extension candidates. Maximal degree in co-relation 12839. Up to 399 conditions per place. [2021-03-25 02:47:54,644 INFO L132 encePairwiseOnDemand]: 259/302 looper letters, 265 selfloop transitions, 57 changer transitions 0/332 dead transitions. [2021-03-25 02:47:54,644 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 332 transitions, 15380 flow [2021-03-25 02:47:54,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 02:47:54,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 02:47:54,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 809 transitions. [2021-03-25 02:47:54,657 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3348509933774834 [2021-03-25 02:47:54,657 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 809 transitions. [2021-03-25 02:47:54,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 809 transitions. [2021-03-25 02:47:54,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:54,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 809 transitions. [2021-03-25 02:47:54,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 101.125) internal successors, (809), 8 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:54,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 302.0) internal successors, (2718), 9 states have internal predecessors, (2718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:54,659 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 302.0) internal successors, (2718), 9 states have internal predecessors, (2718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:54,660 INFO L185 Difference]: Start difference. First operand has 250 places, 319 transitions, 14054 flow. Second operand 8 states and 809 transitions. [2021-03-25 02:47:54,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 332 transitions, 15380 flow [2021-03-25 02:47:54,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 332 transitions, 14793 flow, removed 166 selfloop flow, removed 7 redundant places. [2021-03-25 02:47:55,007 INFO L241 Difference]: Finished difference. Result has 252 places, 327 transitions, 14081 flow [2021-03-25 02:47:55,008 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=13487, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14081, PETRI_PLACES=252, PETRI_TRANSITIONS=327} [2021-03-25 02:47:55,008 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 221 predicate places. [2021-03-25 02:47:55,008 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:55,008 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 252 places, 327 transitions, 14081 flow [2021-03-25 02:47:55,008 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 252 places, 327 transitions, 14081 flow [2021-03-25 02:47:55,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 252 places, 327 transitions, 14081 flow [2021-03-25 02:47:55,126 INFO L129 PetriNetUnfolder]: 231/803 cut-off events. [2021-03-25 02:47:55,126 INFO L130 PetriNetUnfolder]: For 81566/82611 co-relation queries the response was YES. [2021-03-25 02:47:55,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12012 conditions, 803 events. 231/803 cut-off events. For 81566/82611 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 6847 event pairs, 0 based on Foata normal form. 4/734 useless extension candidates. Maximal degree in co-relation 11906. Up to 273 conditions per place. [2021-03-25 02:47:55,140 INFO L142 LiptonReduction]: Number of co-enabled transitions 1634 [2021-03-25 02:47:55,267 INFO L154 LiptonReduction]: Checked pairs total: 482 [2021-03-25 02:47:55,267 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 02:47:55,267 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 259 [2021-03-25 02:47:55,268 INFO L480 AbstractCegarLoop]: Abstraction has has 252 places, 327 transitions, 14083 flow [2021-03-25 02:47:55,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:55,268 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:55,268 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:55,468 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 02:47:55,468 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:55,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:55,469 INFO L82 PathProgramCache]: Analyzing trace with hash -111500591, now seen corresponding path program 1 times [2021-03-25 02:47:55,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:55,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302910670] [2021-03-25 02:47:55,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:55,485 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:55,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,490 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-25 02:47:55,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:55,498 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-25 02:47:55,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:55,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:55,510 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:55,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:55,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302910670] [2021-03-25 02:47:55,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005820462] [2021-03-25 02:47:55,524 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 [2021-03-25 02:47:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:55,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-25 02:47:55,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:55,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:55,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:55,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:55,593 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-25 02:47:55,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:55,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:55,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:55,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:55,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:55,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:55,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:55,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:55,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:55,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:55,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:55,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:55,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:55,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:55,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:55,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:55,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:55,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:55,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:55,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:55,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:55,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:55,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:55,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:55,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,637 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-25 02:47:55,637 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-25 02:47:55,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:47:55,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:55,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:47:55,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 02:47:55,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:55,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:47:55,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 02:47:55,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:55,661 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-25 02:47:55,662 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-25 02:47:55,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:55,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:55,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:55,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 02:47:55,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647368665] [2021-03-25 02:47:55,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 02:47:55,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:55,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 02:47:55,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-03-25 02:47:55,670 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 305 [2021-03-25 02:47:55,671 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 327 transitions, 14083 flow. Second operand has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:55,671 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:55,671 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 305 [2021-03-25 02:47:55,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:56,215 INFO L129 PetriNetUnfolder]: 232/807 cut-off events. [2021-03-25 02:47:56,216 INFO L130 PetriNetUnfolder]: For 82629/84165 co-relation queries the response was YES. [2021-03-25 02:47:56,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12530 conditions, 807 events. 232/807 cut-off events. For 82629/84165 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 6919 event pairs, 0 based on Foata normal form. 41/780 useless extension candidates. Maximal degree in co-relation 12422. Up to 399 conditions per place. [2021-03-25 02:47:56,231 INFO L132 encePairwiseOnDemand]: 261/305 looper letters, 264 selfloop transitions, 59 changer transitions 0/333 dead transitions. [2021-03-25 02:47:56,231 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 333 transitions, 15039 flow [2021-03-25 02:47:56,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 02:47:56,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 02:47:56,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 813 transitions. [2021-03-25 02:47:56,232 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33319672131147543 [2021-03-25 02:47:56,232 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 813 transitions. [2021-03-25 02:47:56,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 813 transitions. [2021-03-25 02:47:56,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:56,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 813 transitions. [2021-03-25 02:47:56,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 101.625) internal successors, (813), 8 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:56,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 305.0) internal successors, (2745), 9 states have internal predecessors, (2745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:56,235 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 305.0) internal successors, (2745), 9 states have internal predecessors, (2745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:56,235 INFO L185 Difference]: Start difference. First operand has 252 places, 327 transitions, 14083 flow. Second operand 8 states and 813 transitions. [2021-03-25 02:47:56,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 333 transitions, 15039 flow [2021-03-25 02:47:56,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 333 transitions, 14947 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-03-25 02:47:56,526 INFO L241 Difference]: Finished difference. Result has 255 places, 328 transitions, 14216 flow [2021-03-25 02:47:56,527 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=13991, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14216, PETRI_PLACES=255, PETRI_TRANSITIONS=328} [2021-03-25 02:47:56,527 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 224 predicate places. [2021-03-25 02:47:56,527 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:56,527 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 255 places, 328 transitions, 14216 flow [2021-03-25 02:47:56,527 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 255 places, 328 transitions, 14216 flow [2021-03-25 02:47:56,533 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 255 places, 328 transitions, 14216 flow [2021-03-25 02:47:56,677 INFO L129 PetriNetUnfolder]: 232/807 cut-off events. [2021-03-25 02:47:56,677 INFO L130 PetriNetUnfolder]: For 81810/82749 co-relation queries the response was YES. [2021-03-25 02:47:56,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12132 conditions, 807 events. 232/807 cut-off events. For 81810/82749 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 6888 event pairs, 0 based on Foata normal form. 13/751 useless extension candidates. Maximal degree in co-relation 12025. Up to 275 conditions per place. [2021-03-25 02:47:56,699 INFO L142 LiptonReduction]: Number of co-enabled transitions 1638 [2021-03-25 02:47:56,779 INFO L154 LiptonReduction]: Checked pairs total: 134 [2021-03-25 02:47:56,779 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 02:47:56,779 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 252 [2021-03-25 02:47:56,779 INFO L480 AbstractCegarLoop]: Abstraction has has 255 places, 328 transitions, 14216 flow [2021-03-25 02:47:56,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:56,779 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:56,780 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:56,980 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-03-25 02:47:56,980 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:56,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:56,980 INFO L82 PathProgramCache]: Analyzing trace with hash -115322365, now seen corresponding path program 1 times [2021-03-25 02:47:56,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:56,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69921350] [2021-03-25 02:47:56,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:56,991 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:56,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:56,996 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-25 02:47:56,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:57,003 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-25 02:47:57,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:57,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:57,021 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:57,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:57,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69921350] [2021-03-25 02:47:57,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268418212] [2021-03-25 02:47:57,029 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 [2021-03-25 02:47:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:57,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-25 02:47:57,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:57,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:57,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:57,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:57,106 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-25 02:47:57,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:57,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 02:47:57,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:57,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:57,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:57,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:57,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:57,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:47:57,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:57,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:57,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:57,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:57,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:57,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:47:57,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:57,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:57,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:57,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:57,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:57,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:47:57,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,139 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-25 02:47:57,139 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-25 02:47:57,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:47:57,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:57,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:47:57,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 02:47:57,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:57,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:47:57,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 02:47:57,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:57,160 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-25 02:47:57,160 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-25 02:47:57,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:47:57,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:57,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:57,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 02:47:57,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602219848] [2021-03-25 02:47:57,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 02:47:57,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:57,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 02:47:57,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-03-25 02:47:57,168 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 306 [2021-03-25 02:47:57,169 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 328 transitions, 14216 flow. Second operand has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:57,169 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:57,169 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 306 [2021-03-25 02:47:57,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:57,812 INFO L129 PetriNetUnfolder]: 234/815 cut-off events. [2021-03-25 02:47:57,813 INFO L130 PetriNetUnfolder]: For 85629/87165 co-relation queries the response was YES. [2021-03-25 02:47:57,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12720 conditions, 815 events. 234/815 cut-off events. For 85629/87165 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 6969 event pairs, 0 based on Foata normal form. 42/787 useless extension candidates. Maximal degree in co-relation 12611. Up to 398 conditions per place. [2021-03-25 02:47:57,825 INFO L132 encePairwiseOnDemand]: 261/306 looper letters, 264 selfloop transitions, 62 changer transitions 0/336 dead transitions. [2021-03-25 02:47:57,825 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 336 transitions, 15306 flow [2021-03-25 02:47:57,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 02:47:57,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 02:47:57,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 818 transitions. [2021-03-25 02:47:57,845 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3341503267973856 [2021-03-25 02:47:57,845 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 818 transitions. [2021-03-25 02:47:57,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 818 transitions. [2021-03-25 02:47:57,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:57,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 818 transitions. [2021-03-25 02:47:57,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 102.25) internal successors, (818), 8 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:57,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 306.0) internal successors, (2754), 9 states have internal predecessors, (2754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:57,848 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 306.0) internal successors, (2754), 9 states have internal predecessors, (2754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:57,848 INFO L185 Difference]: Start difference. First operand has 255 places, 328 transitions, 14216 flow. Second operand 8 states and 818 transitions. [2021-03-25 02:47:57,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 336 transitions, 15306 flow [2021-03-25 02:47:58,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 336 transitions, 15184 flow, removed 23 selfloop flow, removed 5 redundant places. [2021-03-25 02:47:58,105 INFO L241 Difference]: Finished difference. Result has 260 places, 331 transitions, 14479 flow [2021-03-25 02:47:58,105 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=14094, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14479, PETRI_PLACES=260, PETRI_TRANSITIONS=331} [2021-03-25 02:47:58,106 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 229 predicate places. [2021-03-25 02:47:58,106 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:58,106 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 260 places, 331 transitions, 14479 flow [2021-03-25 02:47:58,106 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 260 places, 331 transitions, 14479 flow [2021-03-25 02:47:58,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 260 places, 331 transitions, 14479 flow [2021-03-25 02:47:58,227 INFO L129 PetriNetUnfolder]: 234/815 cut-off events. [2021-03-25 02:47:58,227 INFO L130 PetriNetUnfolder]: For 87852/88956 co-relation queries the response was YES. [2021-03-25 02:47:58,233 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12369 conditions, 815 events. 234/815 cut-off events. For 87852/88956 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 6988 event pairs, 0 based on Foata normal form. 10/750 useless extension candidates. Maximal degree in co-relation 12259. Up to 279 conditions per place. [2021-03-25 02:47:58,242 INFO L142 LiptonReduction]: Number of co-enabled transitions 1652 [2021-03-25 02:47:58,316 INFO L154 LiptonReduction]: Checked pairs total: 136 [2021-03-25 02:47:58,316 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 02:47:58,316 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 210 [2021-03-25 02:47:58,316 INFO L480 AbstractCegarLoop]: Abstraction has has 260 places, 331 transitions, 14479 flow [2021-03-25 02:47:58,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:58,316 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:47:58,316 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:47:58,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 02:47:58,517 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:47:58,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:47:58,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1223322646, now seen corresponding path program 1 times [2021-03-25 02:47:58,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:47:58,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602508240] [2021-03-25 02:47:58,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:47:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:58,527 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:47:58,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,532 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:47:58,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:58,538 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-25 02:47:58,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:47:58,544 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 02:47:58,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:58,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602508240] [2021-03-25 02:47:58,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954334250] [2021-03-25 02:47:58,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-25 02:47:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:47:58,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-25 02:47:58,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:47:58,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:47:58,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:58,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:58,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:58,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:58,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:58,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:58,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:58,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:58,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:58,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:58,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:58,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:58,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:58,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:58,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:58,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:58,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:47:58,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:58,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,641 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-25 02:47:58,642 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-25 02:47:58,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:47:58,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:58,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:58,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 02:47:58,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:47:58,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:47:58,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 02:47:58,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:58,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:47:58,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:47:58,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:47:58,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:47:58,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-25 02:47:58,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543023068] [2021-03-25 02:47:58,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 02:47:58,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:47:58,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 02:47:58,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-03-25 02:47:58,669 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 307 [2021-03-25 02:47:58,669 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 331 transitions, 14479 flow. Second operand has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:58,669 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:47:58,669 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 307 [2021-03-25 02:47:58,669 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:47:59,563 INFO L129 PetriNetUnfolder]: 256/893 cut-off events. [2021-03-25 02:47:59,564 INFO L130 PetriNetUnfolder]: For 102159/103698 co-relation queries the response was YES. [2021-03-25 02:47:59,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14355 conditions, 893 events. 256/893 cut-off events. For 102159/103698 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7668 event pairs, 0 based on Foata normal form. 99/917 useless extension candidates. Maximal degree in co-relation 14243. Up to 367 conditions per place. [2021-03-25 02:47:59,579 INFO L132 encePairwiseOnDemand]: 167/307 looper letters, 164 selfloop transitions, 178 changer transitions 0/352 dead transitions. [2021-03-25 02:47:59,579 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 352 transitions, 16543 flow [2021-03-25 02:47:59,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 02:47:59,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 02:47:59,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1009 transitions. [2021-03-25 02:47:59,583 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3651827723488961 [2021-03-25 02:47:59,583 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1009 transitions. [2021-03-25 02:47:59,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1009 transitions. [2021-03-25 02:47:59,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:47:59,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1009 transitions. [2021-03-25 02:47:59,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 112.11111111111111) internal successors, (1009), 9 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:59,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 307.0) internal successors, (3070), 10 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:59,586 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 307.0) internal successors, (3070), 10 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:47:59,586 INFO L185 Difference]: Start difference. First operand has 260 places, 331 transitions, 14479 flow. Second operand 9 states and 1009 transitions. [2021-03-25 02:47:59,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 352 transitions, 16543 flow [2021-03-25 02:47:59,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 352 transitions, 16397 flow, removed 36 selfloop flow, removed 4 redundant places. [2021-03-25 02:47:59,866 INFO L241 Difference]: Finished difference. Result has 266 places, 351 transitions, 16170 flow [2021-03-25 02:47:59,867 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=307, PETRI_DIFFERENCE_MINUEND_FLOW=14338, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=16170, PETRI_PLACES=266, PETRI_TRANSITIONS=351} [2021-03-25 02:47:59,867 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 235 predicate places. [2021-03-25 02:47:59,867 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:47:59,867 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 266 places, 351 transitions, 16170 flow [2021-03-25 02:47:59,867 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 266 places, 351 transitions, 16170 flow [2021-03-25 02:47:59,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 266 places, 351 transitions, 16170 flow [2021-03-25 02:48:00,000 INFO L129 PetriNetUnfolder]: 256/893 cut-off events. [2021-03-25 02:48:00,000 INFO L130 PetriNetUnfolder]: For 106853/108079 co-relation queries the response was YES. [2021-03-25 02:48:00,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14197 conditions, 893 events. 256/893 cut-off events. For 106853/108079 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 7706 event pairs, 0 based on Foata normal form. 14/829 useless extension candidates. Maximal degree in co-relation 14085. Up to 317 conditions per place. [2021-03-25 02:48:00,026 INFO L142 LiptonReduction]: Number of co-enabled transitions 1732 [2021-03-25 02:48:00,280 INFO L154 LiptonReduction]: Checked pairs total: 1996 [2021-03-25 02:48:00,280 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-25 02:48:00,280 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 413 [2021-03-25 02:48:00,281 INFO L480 AbstractCegarLoop]: Abstraction has has 266 places, 351 transitions, 16186 flow [2021-03-25 02:48:00,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:00,281 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:48:00,281 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:48:00,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2021-03-25 02:48:00,481 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:48:00,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:48:00,482 INFO L82 PathProgramCache]: Analyzing trace with hash 884357806, now seen corresponding path program 1 times [2021-03-25 02:48:00,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:48:00,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264791158] [2021-03-25 02:48:00,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:48:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:48:00,493 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 02:48:00,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,499 INFO L142 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-03-25 02:48:00,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:00,506 INFO L142 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-03-25 02:48:00,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:00,513 INFO L142 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-03-25 02:48:00,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:00,522 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-03-25 02:48:00,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:48:00,537 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:48:00,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264791158] [2021-03-25 02:48:00,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866563598] [2021-03-25 02:48:00,537 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 [2021-03-25 02:48:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:48:00,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 02:48:00,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:48:00,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:00,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:00,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:00,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:00,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:00,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:00,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:00,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:00,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:00,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:00,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:48:00,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:48:00,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:00,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:48:00,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:48:00,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:00,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:00,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:00,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:48:00,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:48:00,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:00,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:48:00,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:48:00,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:00,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:00,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:00,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:00,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:00,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:00,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:00,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:48:00,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:48:00,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:00,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:48:00,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:48:00,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:00,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:00,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:00,700 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:48:00,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:48:00,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-25 02:48:00,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295087455] [2021-03-25 02:48:00,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 02:48:00,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:48:00,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 02:48:00,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-03-25 02:48:00,703 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 316 [2021-03-25 02:48:00,703 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 351 transitions, 16186 flow. Second operand has 12 states, 12 states have (on average 86.0) internal successors, (1032), 12 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:00,703 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:48:00,703 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 316 [2021-03-25 02:48:00,703 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:48:01,596 INFO L129 PetriNetUnfolder]: 264/917 cut-off events. [2021-03-25 02:48:01,596 INFO L130 PetriNetUnfolder]: For 112273/113916 co-relation queries the response was YES. [2021-03-25 02:48:01,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15243 conditions, 917 events. 264/917 cut-off events. For 112273/113916 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 7923 event pairs, 0 based on Foata normal form. 23/862 useless extension candidates. Maximal degree in co-relation 15129. Up to 471 conditions per place. [2021-03-25 02:48:01,610 INFO L132 encePairwiseOnDemand]: 265/316 looper letters, 293 selfloop transitions, 56 changer transitions 0/359 dead transitions. [2021-03-25 02:48:01,610 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 359 transitions, 17524 flow [2021-03-25 02:48:01,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 02:48:01,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 02:48:01,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 895 transitions. [2021-03-25 02:48:01,611 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3540348101265823 [2021-03-25 02:48:01,611 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 895 transitions. [2021-03-25 02:48:01,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 895 transitions. [2021-03-25 02:48:01,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:48:01,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 895 transitions. [2021-03-25 02:48:01,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 111.875) internal successors, (895), 8 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:01,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 316.0) internal successors, (2844), 9 states have internal predecessors, (2844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:01,614 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 316.0) internal successors, (2844), 9 states have internal predecessors, (2844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:01,614 INFO L185 Difference]: Start difference. First operand has 266 places, 351 transitions, 16186 flow. Second operand 8 states and 895 transitions. [2021-03-25 02:48:01,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 359 transitions, 17524 flow [2021-03-25 02:48:01,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 359 transitions, 17351 flow, removed 58 selfloop flow, removed 5 redundant places. [2021-03-25 02:48:01,918 INFO L241 Difference]: Finished difference. Result has 270 places, 356 transitions, 16505 flow [2021-03-25 02:48:01,918 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=16013, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=16505, PETRI_PLACES=270, PETRI_TRANSITIONS=356} [2021-03-25 02:48:01,918 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 239 predicate places. [2021-03-25 02:48:01,918 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:48:01,918 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 270 places, 356 transitions, 16505 flow [2021-03-25 02:48:01,918 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 270 places, 356 transitions, 16505 flow [2021-03-25 02:48:01,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 270 places, 356 transitions, 16505 flow [2021-03-25 02:48:02,058 INFO L129 PetriNetUnfolder]: 264/915 cut-off events. [2021-03-25 02:48:02,058 INFO L130 PetriNetUnfolder]: For 108502/109729 co-relation queries the response was YES. [2021-03-25 02:48:02,065 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14639 conditions, 915 events. 264/915 cut-off events. For 108502/109729 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 8003 event pairs, 1 based on Foata normal form. 4/834 useless extension candidates. Maximal degree in co-relation 14527. Up to 329 conditions per place. [2021-03-25 02:48:02,076 INFO L142 LiptonReduction]: Number of co-enabled transitions 1756 [2021-03-25 02:48:02,228 INFO L154 LiptonReduction]: Checked pairs total: 754 [2021-03-25 02:48:02,229 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 02:48:02,229 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 311 [2021-03-25 02:48:02,229 INFO L480 AbstractCegarLoop]: Abstraction has has 270 places, 356 transitions, 16509 flow [2021-03-25 02:48:02,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 86.0) internal successors, (1032), 12 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:02,229 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:48:02,229 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:48:02,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 02:48:02,430 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:48:02,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:48:02,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1224332768, now seen corresponding path program 1 times [2021-03-25 02:48:02,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:48:02,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344912275] [2021-03-25 02:48:02,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:48:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:48:02,440 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:48:02,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,445 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-25 02:48:02,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:02,451 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-25 02:48:02,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:48:02,458 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-25 02:48:02,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:48:02,465 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:48:02,465 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:48:02,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:48:02,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344912275] [2021-03-25 02:48:02,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4863748] [2021-03-25 02:48:02,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 02:48:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:48:02,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-25 02:48:02,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:48:02,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:02,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:02,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:02,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:02,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:02,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:02,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:02,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:02,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:02,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:48:02,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:48:02,556 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-03-25 02:48:02,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:48:02,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:48:02,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:02,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:48:02,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:48:02,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:02,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:48:02,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:48:02,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:48:02,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:48:02,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:02,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:48:02,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:48:02,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:02,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:02,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:48:02,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:02,584 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-25 02:48:02,584 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-25 02:48:02,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:48:02,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:48:02,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:48:02,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-25 02:48:02,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555068858] [2021-03-25 02:48:02,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 02:48:02,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:48:02,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 02:48:02,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-03-25 02:48:02,596 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 320 [2021-03-25 02:48:02,597 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 356 transitions, 16509 flow. Second operand has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:02,597 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:48:02,597 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 320 [2021-03-25 02:48:02,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:48:03,327 INFO L129 PetriNetUnfolder]: 263/916 cut-off events. [2021-03-25 02:48:03,327 INFO L130 PetriNetUnfolder]: For 107688/109297 co-relation queries the response was YES. [2021-03-25 02:48:03,333 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15139 conditions, 916 events. 263/916 cut-off events. For 107688/109297 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 7967 event pairs, 1 based on Foata normal form. 42/881 useless extension candidates. Maximal degree in co-relation 15025. Up to 435 conditions per place. [2021-03-25 02:48:03,340 INFO L132 encePairwiseOnDemand]: 264/320 looper letters, 273 selfloop transitions, 84 changer transitions 0/367 dead transitions. [2021-03-25 02:48:03,340 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 367 transitions, 17684 flow [2021-03-25 02:48:03,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 02:48:03,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 02:48:03,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 831 transitions. [2021-03-25 02:48:03,341 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.324609375 [2021-03-25 02:48:03,341 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 831 transitions. [2021-03-25 02:48:03,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 831 transitions. [2021-03-25 02:48:03,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:48:03,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 831 transitions. [2021-03-25 02:48:03,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 103.875) internal successors, (831), 8 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:03,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 320.0) internal successors, (2880), 9 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:03,344 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 320.0) internal successors, (2880), 9 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:03,344 INFO L185 Difference]: Start difference. First operand has 270 places, 356 transitions, 16509 flow. Second operand 8 states and 831 transitions. [2021-03-25 02:48:03,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 367 transitions, 17684 flow [2021-03-25 02:48:03,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 367 transitions, 17273 flow, removed 185 selfloop flow, removed 2 redundant places. [2021-03-25 02:48:03,735 INFO L241 Difference]: Finished difference. Result has 277 places, 359 transitions, 16510 flow [2021-03-25 02:48:03,735 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=320, PETRI_DIFFERENCE_MINUEND_FLOW=16154, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=16510, PETRI_PLACES=277, PETRI_TRANSITIONS=359} [2021-03-25 02:48:03,735 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 246 predicate places. [2021-03-25 02:48:03,736 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:48:03,736 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 277 places, 359 transitions, 16510 flow [2021-03-25 02:48:03,736 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 277 places, 359 transitions, 16510 flow [2021-03-25 02:48:03,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 277 places, 359 transitions, 16510 flow [2021-03-25 02:48:03,891 INFO L129 PetriNetUnfolder]: 263/916 cut-off events. [2021-03-25 02:48:03,892 INFO L130 PetriNetUnfolder]: For 104173/105183 co-relation queries the response was YES. [2021-03-25 02:48:03,898 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14438 conditions, 916 events. 263/916 cut-off events. For 104173/105183 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 8005 event pairs, 1 based on Foata normal form. 7/845 useless extension candidates. Maximal degree in co-relation 14323. Up to 315 conditions per place. [2021-03-25 02:48:03,909 INFO L142 LiptonReduction]: Number of co-enabled transitions 1770 [2021-03-25 02:48:04,017 INFO L154 LiptonReduction]: Checked pairs total: 286 [2021-03-25 02:48:04,017 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 02:48:04,017 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 281 [2021-03-25 02:48:04,017 INFO L480 AbstractCegarLoop]: Abstraction has has 277 places, 359 transitions, 16510 flow [2021-03-25 02:48:04,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:04,017 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:48:04,017 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:48:04,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2021-03-25 02:48:04,218 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:48:04,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:48:04,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1827130322, now seen corresponding path program 1 times [2021-03-25 02:48:04,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:48:04,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99616824] [2021-03-25 02:48:04,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:48:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:48:04,241 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:48:04,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:04,247 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:48:04,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:04,253 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-03-25 02:48:04,254 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-03-25 02:48:04,267 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-25 02:48:04,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:48:04,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:48:04,282 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:48:04,283 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:48:04,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:48:04,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99616824] [2021-03-25 02:48:04,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001814864] [2021-03-25 02:48:04,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-25 02:48:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:48:04,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 02:48:04,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:48:04,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:04,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:04,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:04,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:04,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:04,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:04,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:04,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:04,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:04,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:04,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:04,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:04,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:04,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:04,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:04,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:04,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:04,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:04,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:04,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:04,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:04,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:04,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:04,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:04,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:04,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:04,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:04,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:04,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:04,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:04,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:04,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:04,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:48:04,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 02:48:04,395 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-25 02:48:04,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 02:48:04,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 02:48:04,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:04,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:04,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:48:04,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:04,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:04,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 02:48:04,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,421 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-25 02:48:04,422 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-25 02:48:04,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 02:48:04,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:04,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:48:04,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 02:48:04,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:04,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:48:04,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 02:48:04,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,444 INFO L147 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size 23 [2021-03-25 02:48:04,444 INFO L142 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size [2021-03-25 02:48:04,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 02:48:04,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:04,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 02:48:04,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 02:48:04,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:04,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 02:48:04,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 02:48:04,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:04,476 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.3 percent of original size 40 [2021-03-25 02:48:04,478 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.3 percent of original size [2021-03-25 02:48:04,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 02:48:04,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:48:04,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:48:04,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-03-25 02:48:04,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750491015] [2021-03-25 02:48:04,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 02:48:04,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:48:04,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 02:48:04,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-03-25 02:48:04,504 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 322 [2021-03-25 02:48:04,505 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 359 transitions, 16510 flow. Second operand has 14 states, 14 states have (on average 78.0) internal successors, (1092), 14 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:04,505 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:48:04,505 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 322 [2021-03-25 02:48:04,505 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:48:05,678 INFO L129 PetriNetUnfolder]: 272/952 cut-off events. [2021-03-25 02:48:05,678 INFO L130 PetriNetUnfolder]: For 111598/113210 co-relation queries the response was YES. [2021-03-25 02:48:05,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15497 conditions, 952 events. 272/952 cut-off events. For 111598/113210 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 8455 event pairs, 1 based on Foata normal form. 61/930 useless extension candidates. Maximal degree in co-relation 15380. Up to 346 conditions per place. [2021-03-25 02:48:05,692 INFO L132 encePairwiseOnDemand]: 221/322 looper letters, 190 selfloop transitions, 178 changer transitions 0/378 dead transitions. [2021-03-25 02:48:05,692 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 378 transitions, 18254 flow [2021-03-25 02:48:05,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 02:48:05,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 02:48:05,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1173 transitions. [2021-03-25 02:48:05,693 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30357142857142855 [2021-03-25 02:48:05,693 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1173 transitions. [2021-03-25 02:48:05,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1173 transitions. [2021-03-25 02:48:05,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:48:05,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1173 transitions. [2021-03-25 02:48:05,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.75) internal successors, (1173), 12 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:05,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 322.0) internal successors, (4186), 13 states have internal predecessors, (4186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:05,696 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 322.0) internal successors, (4186), 13 states have internal predecessors, (4186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:05,696 INFO L185 Difference]: Start difference. First operand has 277 places, 359 transitions, 16510 flow. Second operand 12 states and 1173 transitions. [2021-03-25 02:48:05,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 378 transitions, 18254 flow [2021-03-25 02:48:06,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 378 transitions, 18149 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-03-25 02:48:06,012 INFO L241 Difference]: Finished difference. Result has 286 places, 371 transitions, 17568 flow [2021-03-25 02:48:06,012 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=322, PETRI_DIFFERENCE_MINUEND_FLOW=16405, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=166, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=17568, PETRI_PLACES=286, PETRI_TRANSITIONS=371} [2021-03-25 02:48:06,012 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 255 predicate places. [2021-03-25 02:48:06,012 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:48:06,012 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 286 places, 371 transitions, 17568 flow [2021-03-25 02:48:06,012 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 286 places, 371 transitions, 17568 flow [2021-03-25 02:48:06,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 286 places, 371 transitions, 17568 flow [2021-03-25 02:48:06,162 INFO L129 PetriNetUnfolder]: 272/954 cut-off events. [2021-03-25 02:48:06,162 INFO L130 PetriNetUnfolder]: For 115255/116293 co-relation queries the response was YES. [2021-03-25 02:48:06,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15253 conditions, 954 events. 272/954 cut-off events. For 115255/116293 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 8555 event pairs, 1 based on Foata normal form. 8/879 useless extension candidates. Maximal degree in co-relation 15135. Up to 329 conditions per place. [2021-03-25 02:48:06,181 INFO L142 LiptonReduction]: Number of co-enabled transitions 1818 [2021-03-25 02:48:06,273 INFO L154 LiptonReduction]: Checked pairs total: 146 [2021-03-25 02:48:06,273 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 02:48:06,273 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 261 [2021-03-25 02:48:06,273 INFO L480 AbstractCegarLoop]: Abstraction has has 286 places, 371 transitions, 17568 flow [2021-03-25 02:48:06,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 78.0) internal successors, (1092), 14 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:06,273 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:48:06,273 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:48:06,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 02:48:06,474 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:48:06,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:48:06,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1934431428, now seen corresponding path program 1 times [2021-03-25 02:48:06,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:48:06,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886878902] [2021-03-25 02:48:06,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:48:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:48:06,488 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:48:06,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:06,493 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:48:06,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,499 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:48:06,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,506 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-25 02:48:06,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:48:06,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:48:06,521 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:48:06,522 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:48:06,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:48:06,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886878902] [2021-03-25 02:48:06,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833058019] [2021-03-25 02:48:06,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-25 02:48:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:48:06,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 02:48:06,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:48:06,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:06,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:06,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:06,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:06,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:06,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:06,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:06,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:06,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:06,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:06,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:06,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:06,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:06,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:06,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:06,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:06,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:06,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:06,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:06,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:48:06,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:06,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:06,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:48:06,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,644 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-25 02:48:06,644 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-25 02:48:06,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:48:06,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 02:48:06,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 02:48:06,658 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-03-25 02:48:06,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 02:48:06,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 02:48:06,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:06,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:48:06,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 02:48:06,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:06,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:48:06,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 02:48:06,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,683 INFO L147 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size 23 [2021-03-25 02:48:06,684 INFO L142 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size [2021-03-25 02:48:06,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 02:48:06,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:06,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 02:48:06,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 02:48:06,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:06,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 02:48:06,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 02:48:06,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:06,710 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.3 percent of original size 40 [2021-03-25 02:48:06,711 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.3 percent of original size [2021-03-25 02:48:06,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 02:48:06,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:48:06,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 02:48:06,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-03-25 02:48:06,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929520413] [2021-03-25 02:48:06,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 02:48:06,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 02:48:06,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 02:48:06,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-03-25 02:48:06,734 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 323 [2021-03-25 02:48:06,735 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 371 transitions, 17568 flow. Second operand has 14 states, 14 states have (on average 78.0) internal successors, (1092), 14 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:06,735 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 02:48:06,735 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 323 [2021-03-25 02:48:06,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 02:48:08,003 INFO L129 PetriNetUnfolder]: 283/996 cut-off events. [2021-03-25 02:48:08,003 INFO L130 PetriNetUnfolder]: For 123215/124852 co-relation queries the response was YES. [2021-03-25 02:48:08,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16396 conditions, 996 events. 283/996 cut-off events. For 123215/124852 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 8968 event pairs, 1 based on Foata normal form. 64/971 useless extension candidates. Maximal degree in co-relation 16276. Up to 345 conditions per place. [2021-03-25 02:48:08,017 INFO L132 encePairwiseOnDemand]: 155/323 looper letters, 105 selfloop transitions, 288 changer transitions 0/403 dead transitions. [2021-03-25 02:48:08,017 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 403 transitions, 19980 flow [2021-03-25 02:48:08,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 02:48:08,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 02:48:08,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1588 transitions. [2021-03-25 02:48:08,019 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28920050992533236 [2021-03-25 02:48:08,019 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1588 transitions. [2021-03-25 02:48:08,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1588 transitions. [2021-03-25 02:48:08,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 02:48:08,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1588 transitions. [2021-03-25 02:48:08,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 93.41176470588235) internal successors, (1588), 17 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:08,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 323.0) internal successors, (5814), 18 states have internal predecessors, (5814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:08,024 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 323.0) internal successors, (5814), 18 states have internal predecessors, (5814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:08,024 INFO L185 Difference]: Start difference. First operand has 286 places, 371 transitions, 17568 flow. Second operand 17 states and 1588 transitions. [2021-03-25 02:48:08,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 403 transitions, 19980 flow [2021-03-25 02:48:08,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 403 transitions, 19683 flow, removed 84 selfloop flow, removed 5 redundant places. [2021-03-25 02:48:08,417 INFO L241 Difference]: Finished difference. Result has 303 places, 394 transitions, 19245 flow [2021-03-25 02:48:08,418 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=17271, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=265, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=19245, PETRI_PLACES=303, PETRI_TRANSITIONS=394} [2021-03-25 02:48:08,418 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 272 predicate places. [2021-03-25 02:48:08,418 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 02:48:08,418 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 303 places, 394 transitions, 19245 flow [2021-03-25 02:48:08,419 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 303 places, 394 transitions, 19245 flow [2021-03-25 02:48:08,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 303 places, 394 transitions, 19245 flow [2021-03-25 02:48:08,597 INFO L129 PetriNetUnfolder]: 283/998 cut-off events. [2021-03-25 02:48:08,597 INFO L130 PetriNetUnfolder]: For 119211/120319 co-relation queries the response was YES. [2021-03-25 02:48:08,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16071 conditions, 998 events. 283/998 cut-off events. For 119211/120319 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 9048 event pairs, 1 based on Foata normal form. 4/912 useless extension candidates. Maximal degree in co-relation 15947. Up to 326 conditions per place. [2021-03-25 02:48:08,618 INFO L142 LiptonReduction]: Number of co-enabled transitions 1914 [2021-03-25 02:48:08,773 INFO L154 LiptonReduction]: Checked pairs total: 572 [2021-03-25 02:48:08,773 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 02:48:08,774 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 356 [2021-03-25 02:48:08,774 INFO L480 AbstractCegarLoop]: Abstraction has has 303 places, 394 transitions, 19247 flow [2021-03-25 02:48:08,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 78.0) internal successors, (1092), 14 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 02:48:08,774 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 02:48:08,774 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 02:48:08,974 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-03-25 02:48:08,974 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 02:48:08,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 02:48:08,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1483399621, now seen corresponding path program 1 times [2021-03-25 02:48:08,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 02:48:08,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714118021] [2021-03-25 02:48:08,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 02:48:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:48:08,989 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 02:48:08,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:08,994 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-25 02:48:08,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,000 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:48:09,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,007 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-25 02:48:09,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:48:09,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:48:09,022 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-25 02:48:09,023 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 02:48:09,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 02:48:09,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714118021] [2021-03-25 02:48:09,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268053505] [2021-03-25 02:48:09,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-25 02:48:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 02:48:09,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 02:48:09,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 02:48:09,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:09,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:09,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:09,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:09,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:09,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:09,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:09,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:09,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:09,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:09,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:09,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 02:48:09,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:09,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:09,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:09,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:09,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:48:09,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:09,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:48:09,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,129 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-25 02:48:09,130 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-25 02:48:09,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 02:48:09,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 02:48:09,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 02:48:09,144 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-03-25 02:48:09,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 02:48:09,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 02:48:09,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:48:09,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 02:48:09,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:48:09,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 02:48:09,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,173 INFO L147 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size 23 [2021-03-25 02:48:09,174 INFO L142 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size [2021-03-25 02:48:09,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 02:48:09,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 02:48:09,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 02:48:09,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 02:48:09,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 02:48:09,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,201 INFO L147 QuantifierPusher]: treesize reduction -4, result has 109.1 percent of original size 48 [2021-03-25 02:48:09,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,202 INFO L142 QuantifierPusher]: treesize reduction -4, result has 107.5 percent of original size [2021-03-25 02:48:09,232 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:09,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,240 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size 23 [2021-03-25 02:48:09,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,244 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.3 percent of original size 24 [2021-03-25 02:48:09,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,248 INFO L147 QuantifierPusher]: treesize reduction -2, result has 108.0 percent of original size 27 [2021-03-25 02:48:09,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,250 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.3 percent of original size 40 [2021-03-25 02:48:09,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,251 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.5 percent of original size [2021-03-25 02:48:09,253 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.0 percent of original size 42 [2021-03-25 02:48:09,354 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:09,514 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:09,664 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:09,805 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:09,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 02:48:09,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,869 INFO L147 QuantifierPusher]: treesize reduction -4, result has 113.3 percent of original size 34 [2021-03-25 02:48:09,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:48:09,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,875 INFO L147 QuantifierPusher]: treesize reduction -2, result has 107.7 percent of original size 28 [2021-03-25 02:48:09,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,879 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.2 percent of original size 50 [2021-03-25 02:48:09,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,883 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size [2021-03-25 02:48:09,886 INFO L147 QuantifierPusher]: treesize reduction -4, result has 108.5 percent of original size 51 [2021-03-25 02:48:09,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 02:48:09,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:09,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:09,901 INFO L147 QuantifierPusher]: treesize reduction -2, result has 102.5 percent of original size 83 [2021-03-25 02:48:09,962 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:10,080 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:10,228 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:10,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 02:48:10,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,333 INFO L147 QuantifierPusher]: treesize reduction -12, result has 112.0 percent of original size 112 [2021-03-25 02:48:10,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,337 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.7 percent of original size 60 [2021-03-25 02:48:10,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 02:48:10,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 02:48:10,367 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:10,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:48:10,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:48:10,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 02:48:10,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,448 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:10,512 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:10,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:10,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:10,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 02:48:10,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,572 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:10,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 02:48:10,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 02:48:10,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,616 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:10,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:10,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 02:48:10,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:10,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:10,661 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:10,662 INFO L147 QuantifierPusher]: treesize reduction 12, result has 88.0 percent of original size 88 [2021-03-25 02:48:10,733 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:10,827 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:10,959 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:11,153 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:11,418 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:11,679 INFO L842 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:11,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:11,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:11,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 02:48:11,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:11,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:11,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 02:48:11,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:11,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:11,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 02:48:11,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:11,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:11,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 02:48:11,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:11,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:11,789 INFO L147 QuantifierPusher]: treesize reduction -4, result has 111.4 percent of original size 39 [2021-03-25 02:48:11,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:11,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:11,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:48:11,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:11,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:11,794 INFO L147 QuantifierPusher]: treesize reduction -7, result has 117.5 percent of original size 47 [2021-03-25 02:48:11,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:11,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:11,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 02:48:11,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:11,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:11,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:11,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:11,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 02:48:11,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:11,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:11,821 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:11,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:11,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:11,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 02:48:11,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:11,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:11,840 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.0 percent of original size 42 [2021-03-25 02:48:11,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:11,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:11,841 INFO L147 QuantifierPusher]: treesize reduction 23, result has 48.9 percent of original size 22 [2021-03-25 02:48:11,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:11,843 INFO L142 QuantifierPusher]: treesize reduction 20, result has 83.6 percent of original size [2021-03-25 02:48:11,890 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:11,968 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:12,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:12,023 INFO L147 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size 23 [2021-03-25 02:48:12,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:12,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:48:12,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:12,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:12,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 02:48:12,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:12,069 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:12,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:12,097 INFO L147 QuantifierPusher]: treesize reduction -2, result has 106.3 percent of original size 34 [2021-03-25 02:48:12,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:12,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 02:48:12,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:12,103 INFO L147 QuantifierPusher]: treesize reduction -2, result has 106.1 percent of original size 35 [2021-03-25 02:48:12,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,104 INFO L142 QuantifierPusher]: treesize reduction -4, result has 103.2 percent of original size [2021-03-25 02:48:12,164 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:12,217 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:12,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:12,267 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size 22 [2021-03-25 02:48:12,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:12,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:48:12,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:12,272 INFO L147 QuantifierPusher]: treesize reduction -2, result has 106.5 percent of original size 33 [2021-03-25 02:48:12,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:12,275 INFO L147 QuantifierPusher]: treesize reduction -4, result has 114.8 percent of original size 31 [2021-03-25 02:48:12,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,276 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.9 percent of original size [2021-03-25 02:48:12,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 02:48:12,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:12,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 02:48:12,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:12,282 INFO L147 QuantifierPusher]: treesize reduction -3, result has 106.8 percent of original size 47 [2021-03-25 02:48:12,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,283 INFO L142 QuantifierPusher]: treesize reduction -2, result has 103.4 percent of original size [2021-03-25 02:48:12,285 INFO L147 QuantifierPusher]: treesize reduction -3, result has 103.1 percent of original size 99 [2021-03-25 02:48:12,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,287 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.6 percent of original size [2021-03-25 02:48:12,288 INFO L147 QuantifierPusher]: treesize reduction -6, result has 107.0 percent of original size 92 [2021-03-25 02:48:12,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,289 INFO L142 QuantifierPusher]: treesize reduction -4, result has 104.3 percent of original size [2021-03-25 02:48:12,330 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:12,432 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:12,541 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:12,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:12,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 02:48:12,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:12,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 02:48:12,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:12,567 INFO L147 QuantifierPusher]: treesize reduction -36, result has 112.5 percent of original size 323 [2021-03-25 02:48:12,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:12,569 INFO L142 QuantifierPusher]: treesize reduction -7, result has 104.5 percent of original size [2021-03-25 02:48:12,604 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:12,721 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:13,009 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:13,396 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:13,711 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:13,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:13,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:13,762 INFO L147 QuantifierPusher]: treesize reduction -7, result has 113.5 percent of original size 59 [2021-03-25 02:48:13,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:13,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:13,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 02:48:13,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:13,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:13,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 02:48:13,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:13,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:13,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 02:48:13,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:13,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:13,778 INFO L147 QuantifierPusher]: treesize reduction -6, result has 113.0 percent of original size 52 [2021-03-25 02:48:13,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:13,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:13,782 INFO L147 QuantifierPusher]: treesize reduction -6, result has 112.8 percent of original size 53 [2021-03-25 02:48:13,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:13,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:13,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 02:48:13,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:13,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:13,800 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:13,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:13,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:13,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 02:48:13,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:13,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:13,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 02:48:13,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:13,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:13,838 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:13,902 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:14,008 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:14,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:14,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:14,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 02:48:14,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:14,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:14,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:14,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:14,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 02:48:14,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:14,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:14,112 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:14,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:14,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:14,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 02:48:14,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:14,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:14,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 02:48:14,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:14,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:14,159 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:14,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:14,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:14,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 02:48:14,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:14,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:14,168 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.8 percent of original size 37 [2021-03-25 02:48:14,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:14,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:14,170 INFO L147 QuantifierPusher]: treesize reduction -5, result has 108.9 percent of original size 61 [2021-03-25 02:48:14,225 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:14,305 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:14,528 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:15,027 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:15,685 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:16,390 INFO L842 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:17,005 INFO L842 QuantifierPusher]: Run 70 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:17,646 INFO L842 QuantifierPusher]: Run 80 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:18,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 02:48:18,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:18,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:48:18,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 02:48:18,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,279 INFO L147 QuantifierPusher]: treesize reduction -5, result has 109.4 percent of original size 58 [2021-03-25 02:48:18,311 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:18,363 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:18,440 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:18,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,542 INFO L147 QuantifierPusher]: treesize reduction -4, result has 111.1 percent of original size 40 [2021-03-25 02:48:18,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:48:18,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:48:18,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:18,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:48:18,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,561 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:18,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 02:48:18,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,567 INFO L147 QuantifierPusher]: treesize reduction -1, result has 103.6 percent of original size 29 [2021-03-25 02:48:18,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,568 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.4 percent of original size [2021-03-25 02:48:18,587 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:18,620 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:18,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 02:48:18,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:48:18,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 02:48:18,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:48:18,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,653 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:18,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 02:48:18,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,658 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size 48 [2021-03-25 02:48:18,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,659 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.0 percent of original size [2021-03-25 02:48:18,685 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:18,738 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:18,825 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:18,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,900 INFO L147 QuantifierPusher]: treesize reduction -3, result has 108.8 percent of original size 37 [2021-03-25 02:48:18,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,904 INFO L147 QuantifierPusher]: treesize reduction -4, result has 113.3 percent of original size 34 [2021-03-25 02:48:18,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,907 INFO L147 QuantifierPusher]: treesize reduction -3, result has 108.6 percent of original size 38 [2021-03-25 02:48:18,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,909 INFO L142 QuantifierPusher]: treesize reduction -2, result has 106.1 percent of original size [2021-03-25 02:48:18,910 INFO L147 QuantifierPusher]: treesize reduction -3, result has 107.7 percent of original size 42 [2021-03-25 02:48:18,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:48:18,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 02:48:18,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,942 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:18,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:18,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 02:48:18,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,985 INFO L147 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size 30 [2021-03-25 02:48:18,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:18,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 02:48:18,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:18,990 INFO L142 QuantifierPusher]: treesize reduction -2, result has 101.1 percent of original size [2021-03-25 02:48:19,064 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:19,200 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:19,363 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:19,533 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:19,678 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:19,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,831 INFO L147 QuantifierPusher]: treesize reduction -6, result has 115.0 percent of original size 46 [2021-03-25 02:48:19,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,833 INFO L142 QuantifierPusher]: treesize reduction 8, result has 82.2 percent of original size [2021-03-25 02:48:19,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 02:48:19,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 02:48:19,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,841 INFO L147 QuantifierPusher]: treesize reduction -7, result has 118.4 percent of original size 45 [2021-03-25 02:48:19,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,843 INFO L147 QuantifierPusher]: treesize reduction -7, result has 115.9 percent of original size 51 [2021-03-25 02:48:19,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,846 INFO L147 QuantifierPusher]: treesize reduction -2, result has 103.7 percent of original size 56 [2021-03-25 02:48:19,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,849 INFO L147 QuantifierPusher]: treesize reduction -3, result has 107.7 percent of original size 42 [2021-03-25 02:48:19,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 02:48:19,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-25 02:48:19,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,858 INFO L147 QuantifierPusher]: treesize reduction -6, result has 110.9 percent of original size 61 [2021-03-25 02:48:19,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,860 INFO L142 QuantifierPusher]: treesize reduction -6, result has 111.5 percent of original size [2021-03-25 02:48:19,861 INFO L147 QuantifierPusher]: treesize reduction -4, result has 105.3 percent of original size 79 [2021-03-25 02:48:19,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,863 INFO L142 QuantifierPusher]: treesize reduction -3, result has 105.1 percent of original size [2021-03-25 02:48:19,867 INFO L147 QuantifierPusher]: treesize reduction 43, result has 91.7 percent of original size 472 [2021-03-25 02:48:19,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,882 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:19,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 02:48:19,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 02:48:19,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,898 INFO L147 QuantifierPusher]: treesize reduction 21, result has 48.8 percent of original size 20 [2021-03-25 02:48:19,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,915 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:19,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:48:19,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 02:48:19,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,956 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:19,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,960 INFO L147 QuantifierPusher]: treesize reduction -2, result has 106.7 percent of original size 32 [2021-03-25 02:48:19,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:19,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 02:48:19,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:19,963 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.2 percent of original size [2021-03-25 02:48:19,991 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:20,023 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:20,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:48:20,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 02:48:20,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,040 INFO L147 QuantifierPusher]: treesize reduction -2, result has 106.7 percent of original size 32 [2021-03-25 02:48:20,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 02:48:20,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,046 INFO L147 QuantifierPusher]: treesize reduction -6, result has 104.5 percent of original size 140 [2021-03-25 02:48:20,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,049 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.9 percent of original size 36 [2021-03-25 02:48:20,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,050 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.8 percent of original size [2021-03-25 02:48:20,051 INFO L147 QuantifierPusher]: treesize reduction 15, result has 50.0 percent of original size 15 [2021-03-25 02:48:20,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,052 INFO L142 QuantifierPusher]: treesize reduction -1, result has 100.7 percent of original size [2021-03-25 02:48:20,074 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:20,120 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:20,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,169 INFO L147 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size 30 [2021-03-25 02:48:20,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-25 02:48:20,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 02:48:20,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 02:48:20,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-25 02:48:20,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,195 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:20,227 INFO L147 QuantifierPusher]: treesize reduction -44, result has 100.7 percent of original size 6233 [2021-03-25 02:48:20,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,250 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:20,265 INFO L147 QuantifierPusher]: treesize reduction -26, result has 100.3 percent of original size 7776 [2021-03-25 02:48:20,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 02:48:20,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 02:48:20,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,312 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:20,346 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:20,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 02:48:20,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 02:48:20,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 02:48:20,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 02:48:20,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,392 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:20,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 02:48:20,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,419 INFO L147 QuantifierPusher]: treesize reduction 24, result has 48.9 percent of original size 23 [2021-03-25 02:48:20,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 02:48:20,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,436 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:20,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 02:48:20,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 02:48:20,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,447 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.6 percent of original size 38 [2021-03-25 02:48:20,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,461 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:20,489 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:20,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:48:20,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 02:48:20,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,524 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:20,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 02:48:20,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,545 INFO L147 QuantifierPusher]: treesize reduction -4, result has 112.5 percent of original size 36 [2021-03-25 02:48:20,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 02:48:20,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,548 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.9 percent of original size [2021-03-25 02:48:20,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 02:48:20,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,571 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:20,606 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:20,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 02:48:20,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 02:48:20,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 02:48:20,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,645 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:20,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,650 INFO L147 QuantifierPusher]: treesize reduction -1, result has 103.8 percent of original size 27 [2021-03-25 02:48:20,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:48:20,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:20,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:20,654 INFO L147 QuantifierPusher]: treesize reduction -11, result has 111.1 percent of original size 110 [2021-03-25 02:48:20,724 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:20,967 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:21,345 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:21,976 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:22,733 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:23,767 INFO L842 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:24,521 INFO L842 QuantifierPusher]: Run 70 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:25,083 INFO L842 QuantifierPusher]: Run 80 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:25,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 02:48:25,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,206 INFO L147 QuantifierPusher]: treesize reduction -12, result has 107.7 percent of original size 167 [2021-03-25 02:48:25,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,214 INFO L147 QuantifierPusher]: treesize reduction -15, result has 124.6 percent of original size 76 [2021-03-25 02:48:25,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:48:25,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,230 INFO L147 QuantifierPusher]: treesize reduction -16, result has 125.4 percent of original size 79 [2021-03-25 02:48:25,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,235 INFO L142 QuantifierPusher]: treesize reduction -7, result has 108.5 percent of original size [2021-03-25 02:48:25,236 INFO L147 QuantifierPusher]: treesize reduction -13, result has 110.7 percent of original size 135 [2021-03-25 02:48:25,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 02:48:25,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,247 INFO L142 QuantifierPusher]: treesize reduction -6, result has 112.5 percent of original size [2021-03-25 02:48:25,248 INFO L147 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size 31 [2021-03-25 02:48:25,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 02:48:25,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 02:48:25,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,287 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:25,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 02:48:25,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 02:48:25,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,308 INFO L147 QuantifierPusher]: treesize reduction -3, result has 107.3 percent of original size 44 [2021-03-25 02:48:25,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,324 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:25,350 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:25,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 02:48:25,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 02:48:25,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,364 INFO L147 QuantifierPusher]: treesize reduction -2, result has 103.8 percent of original size 54 [2021-03-25 02:48:25,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:48:25,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 02:48:25,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,391 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:25,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 02:48:25,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,417 INFO L147 QuantifierPusher]: treesize reduction -6, result has 107.1 percent of original size 91 [2021-03-25 02:48:25,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 02:48:25,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 02:48:25,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,441 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:25,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,467 INFO L147 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size 30 [2021-03-25 02:48:25,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 02:48:25,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 02:48:25,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,482 INFO L147 QuantifierPusher]: treesize reduction -8, result has 107.9 percent of original size 109 [2021-03-25 02:48:25,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,484 INFO L142 QuantifierPusher]: treesize reduction -8, result has 104.8 percent of original size [2021-03-25 02:48:25,527 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:25,606 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:25,688 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:25,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,724 INFO L147 QuantifierPusher]: treesize reduction -3, result has 106.3 percent of original size 51 [2021-03-25 02:48:25,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,727 INFO L147 QuantifierPusher]: treesize reduction -3, result has 109.7 percent of original size 34 [2021-03-25 02:48:25,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,732 INFO L147 QuantifierPusher]: treesize reduction -5, result has 106.7 percent of original size 80 [2021-03-25 02:48:25,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 02:48:25,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 02:48:25,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,756 INFO L147 QuantifierPusher]: treesize reduction -4, result has 109.8 percent of original size 45 [2021-03-25 02:48:25,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 02:48:25,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,764 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.7 percent of original size [2021-03-25 02:48:25,784 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:25,824 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:25,830 INFO L147 QuantifierPusher]: treesize reduction 28, result has 99.4 percent of original size 4640 [2021-03-25 02:48:25,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,836 INFO L142 QuantifierPusher]: treesize reduction -3, result has 103.1 percent of original size [2021-03-25 02:48:25,870 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:25,919 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:25,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 02:48:25,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 02:48:25,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,951 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.4 percent of original size 39 [2021-03-25 02:48:25,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,956 INFO L147 QuantifierPusher]: treesize reduction -5, result has 110.6 percent of original size 52 [2021-03-25 02:48:25,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:25,959 INFO L147 QuantifierPusher]: treesize reduction -12, result has 113.0 percent of original size 104 [2021-03-25 02:48:25,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,962 INFO L142 QuantifierPusher]: treesize reduction -7, result has 109.7 percent of original size [2021-03-25 02:48:25,963 INFO L147 QuantifierPusher]: treesize reduction -9, result has 105.4 percent of original size 175 [2021-03-25 02:48:25,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:25,966 INFO L142 QuantifierPusher]: treesize reduction -19, result has 106.2 percent of original size [2021-03-25 02:48:26,058 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:26,299 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:26,682 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:26,943 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:27,215 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:27,581 INFO L842 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:28,005 INFO L842 QuantifierPusher]: Run 70 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:28,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,225 INFO L147 QuantifierPusher]: treesize reduction -6, result has 112.5 percent of original size 54 [2021-03-25 02:48:28,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,229 INFO L147 QuantifierPusher]: treesize reduction -2, result has 106.9 percent of original size 31 [2021-03-25 02:48:28,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,233 INFO L147 QuantifierPusher]: treesize reduction -6, result has 116.7 percent of original size 42 [2021-03-25 02:48:28,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,236 INFO L147 QuantifierPusher]: treesize reduction -2, result has 106.3 percent of original size 34 [2021-03-25 02:48:28,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,240 INFO L147 QuantifierPusher]: treesize reduction -6, result has 116.7 percent of original size 42 [2021-03-25 02:48:28,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 02:48:28,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,247 INFO L142 QuantifierPusher]: treesize reduction -3, result has 107.1 percent of original size [2021-03-25 02:48:28,248 INFO L147 QuantifierPusher]: treesize reduction 20, result has 52.4 percent of original size 22 [2021-03-25 02:48:28,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,251 INFO L147 QuantifierPusher]: treesize reduction -3, result has 107.7 percent of original size 42 [2021-03-25 02:48:28,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,255 INFO L147 QuantifierPusher]: treesize reduction -4, result has 109.5 percent of original size 46 [2021-03-25 02:48:28,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 02:48:28,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,260 INFO L142 QuantifierPusher]: treesize reduction -3, result has 107.9 percent of original size [2021-03-25 02:48:28,262 INFO L147 QuantifierPusher]: treesize reduction -1, result has 103.1 percent of original size 33 [2021-03-25 02:48:28,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,265 INFO L147 QuantifierPusher]: treesize reduction -6, result has 114.0 percent of original size 49 [2021-03-25 02:48:28,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 02:48:28,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,272 INFO L147 QuantifierPusher]: treesize reduction -5, result has 109.1 percent of original size 60 [2021-03-25 02:48:28,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,274 INFO L142 QuantifierPusher]: treesize reduction -3, result has 106.1 percent of original size [2021-03-25 02:48:28,275 INFO L147 QuantifierPusher]: treesize reduction -3, result has 106.0 percent of original size 53 [2021-03-25 02:48:28,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,278 INFO L147 QuantifierPusher]: treesize reduction -6, result has 115.8 percent of original size 44 [2021-03-25 02:48:28,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,280 INFO L142 QuantifierPusher]: treesize reduction -3, result has 105.6 percent of original size [2021-03-25 02:48:28,281 INFO L147 QuantifierPusher]: treesize reduction -3, result has 105.5 percent of original size 58 [2021-03-25 02:48:28,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,284 INFO L147 QuantifierPusher]: treesize reduction -8, result has 115.1 percent of original size 61 [2021-03-25 02:48:28,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,286 INFO L142 QuantifierPusher]: treesize reduction -4, result has 106.8 percent of original size [2021-03-25 02:48:28,288 INFO L147 QuantifierPusher]: treesize reduction 71, result has 26.8 percent of original size 26 [2021-03-25 02:48:28,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,290 INFO L147 QuantifierPusher]: treesize reduction -4, result has 109.8 percent of original size 45 [2021-03-25 02:48:28,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,292 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.1 percent of original size [2021-03-25 02:48:28,293 INFO L147 QuantifierPusher]: treesize reduction 17, result has 51.4 percent of original size 18 [2021-03-25 02:48:28,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,296 INFO L147 QuantifierPusher]: treesize reduction -9, result has 110.1 percent of original size 98 [2021-03-25 02:48:28,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,298 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.3 percent of original size [2021-03-25 02:48:28,316 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:28,355 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:28,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 02:48:28,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,401 INFO L147 QuantifierPusher]: treesize reduction -4, result has 113.8 percent of original size 33 [2021-03-25 02:48:28,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 02:48:28,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 02:48:28,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,409 INFO L142 QuantifierPusher]: treesize reduction -2, result has 106.7 percent of original size [2021-03-25 02:48:28,410 INFO L147 QuantifierPusher]: treesize reduction 17, result has 51.4 percent of original size 18 [2021-03-25 02:48:28,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 02:48:28,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,425 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:28,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 02:48:28,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 02:48:28,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,453 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:28,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 02:48:28,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,460 INFO L147 QuantifierPusher]: treesize reduction -6, result has 109.0 percent of original size 73 [2021-03-25 02:48:28,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,462 INFO L142 QuantifierPusher]: treesize reduction -6, result has 104.7 percent of original size [2021-03-25 02:48:28,489 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:28,554 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:28,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,611 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.9 percent of original size 43 [2021-03-25 02:48:28,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 02:48:28,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,616 INFO L147 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size 30 [2021-03-25 02:48:28,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,619 INFO L147 QuantifierPusher]: treesize reduction -2, result has 106.5 percent of original size 33 [2021-03-25 02:48:28,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 02:48:28,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 02:48:28,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:28,628 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.0 percent of original size 42 [2021-03-25 02:48:28,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,630 INFO L142 QuantifierPusher]: treesize reduction 20, result has 69.2 percent of original size [2021-03-25 02:48:28,633 INFO L147 QuantifierPusher]: treesize reduction -2, result has 103.2 percent of original size 64 [2021-03-25 02:48:28,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:28,634 INFO L142 QuantifierPusher]: treesize reduction -4, result has 102.2 percent of original size [2021-03-25 02:48:28,685 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:28,783 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:29,014 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:29,388 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:29,844 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:30,462 INFO L842 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:30,671 INFO L842 QuantifierPusher]: Run 70 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:30,992 INFO L842 QuantifierPusher]: Run 80 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:31,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 02:48:31,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,071 INFO L147 QuantifierPusher]: treesize reduction -6, result has 105.8 percent of original size 110 [2021-03-25 02:48:31,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 02:48:31,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,082 INFO L147 QuantifierPusher]: treesize reduction -8, result has 114.3 percent of original size 64 [2021-03-25 02:48:31,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,088 INFO L147 QuantifierPusher]: treesize reduction -8, result has 119.0 percent of original size 50 [2021-03-25 02:48:31,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,095 INFO L147 QuantifierPusher]: treesize reduction -8, result has 119.0 percent of original size 50 [2021-03-25 02:48:31,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,099 INFO L142 QuantifierPusher]: treesize reduction -3, result has 107.3 percent of original size [2021-03-25 02:48:31,101 INFO L147 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size 30 [2021-03-25 02:48:31,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 02:48:31,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,145 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:31,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,164 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.7 percent of original size 45 [2021-03-25 02:48:31,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 02:48:31,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,171 INFO L147 QuantifierPusher]: treesize reduction 24, result has 48.9 percent of original size 23 [2021-03-25 02:48:31,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,174 INFO L142 QuantifierPusher]: treesize reduction 21, result has 84.2 percent of original size [2021-03-25 02:48:31,213 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:31,248 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:31,316 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:31,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:48:31,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 02:48:31,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 02:48:31,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 02:48:31,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 02:48:31,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,362 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:31,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 02:48:31,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,373 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.9 percent of original size 43 [2021-03-25 02:48:31,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:31,376 INFO L147 QuantifierPusher]: treesize reduction -2, result has 101.6 percent of original size 124 [2021-03-25 02:48:31,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:31,378 INFO L142 QuantifierPusher]: treesize reduction -4, result has 101.8 percent of original size [2021-03-25 02:48:31,566 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:31,785 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:32,059 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:32,289 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:32,548 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:32,896 INFO L842 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:33,245 INFO L842 QuantifierPusher]: Run 70 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:33,672 INFO L842 QuantifierPusher]: Run 80 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:34,010 INFO L842 QuantifierPusher]: Run 90 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:34,323 INFO L842 QuantifierPusher]: Run 100 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:34,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,486 INFO L142 QuantifierPusher]: treesize reduction 6, result has 86.0 percent of original size [2021-03-25 02:48:34,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 02:48:34,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:34,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 02:48:34,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:34,501 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.2 percent of original size 25 [2021-03-25 02:48:34,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:34,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 02:48:34,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:34,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 02:48:34,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:34,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-25 02:48:34,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:34,534 INFO L147 QuantifierPusher]: treesize reduction -3, result has 102.9 percent of original size 108 [2021-03-25 02:48:34,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:34,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 02:48:34,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:34,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 02:48:34,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:34,559 INFO L147 QuantifierPusher]: treesize reduction -11, result has 114.3 percent of original size 88 [2021-03-25 02:48:34,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,565 INFO L142 QuantifierPusher]: treesize reduction -11, result has 113.1 percent of original size [2021-03-25 02:48:34,601 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:34,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:34,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-03-25 02:48:34,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:34,713 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:34,760 INFO L147 QuantifierPusher]: treesize reduction -51, result has 100.5 percent of original size 10171 [2021-03-25 02:48:34,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:34,769 INFO L147 QuantifierPusher]: treesize reduction -23, result has 114.2 percent of original size 185 [2021-03-25 02:48:34,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,780 INFO L142 QuantifierPusher]: treesize reduction -7, result has 108.0 percent of original size [2021-03-25 02:48:34,781 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.3 percent of original size 81 [2021-03-25 02:48:34,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,788 INFO L142 QuantifierPusher]: treesize reduction -15, result has 107.3 percent of original size [2021-03-25 02:48:34,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 02:48:34,839 INFO L147 QuantifierPusher]: treesize reduction 39, result has 96.7 percent of original size 1155 [2021-03-25 02:48:34,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,846 INFO L142 QuantifierPusher]: treesize reduction -6, result has 101.5 percent of original size [2021-03-25 02:48:34,857 INFO L147 QuantifierPusher]: treesize reduction 421, result has 87.2 percent of original size 2880 [2021-03-25 02:48:34,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,865 INFO L142 QuantifierPusher]: treesize reduction 415, result has 57.6 percent of original size [2021-03-25 02:48:34,878 INFO L147 QuantifierPusher]: treesize reduction 2159, result has 56.8 percent of original size 2833 [2021-03-25 02:48:34,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:34,890 INFO L142 QuantifierPusher]: treesize reduction 1740, result has 41.1 percent of original size [2021-03-25 02:48:35,058 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:35,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:35,975 INFO L142 QuantifierPusher]: treesize reduction 50, result has 96.0 percent of original size [2021-03-25 02:48:36,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24574 [2021-03-25 02:48:36,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:36,086 INFO L142 QuantifierPusher]: treesize reduction 25, result has 99.0 percent of original size [2021-03-25 02:48:36,499 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 1624 DAG size of output: 1247 [2021-03-25 02:48:36,528 INFO L147 QuantifierPusher]: treesize reduction 10521, result has 86.7 percent of original size 68511 [2021-03-25 02:48:36,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:36,576 INFO L142 QuantifierPusher]: treesize reduction 1213, result has 74.0 percent of original size [2021-03-25 02:48:37,174 WARN L205 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 1894 DAG size of output: 1155 [2021-03-25 02:48:37,201 INFO L147 QuantifierPusher]: treesize reduction 57217, result has 53.6 percent of original size 66181 [2021-03-25 02:48:37,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:37,260 INFO L142 QuantifierPusher]: treesize reduction 3178, result has 51.9 percent of original size [2021-03-25 02:48:37,824 WARN L205 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 1857 DAG size of output: 1094 [2021-03-25 02:48:37,851 INFO L147 QuantifierPusher]: treesize reduction 57937, result has 52.4 percent of original size 63861 [2021-03-25 02:48:37,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:37,906 INFO L142 QuantifierPusher]: treesize reduction 3203, result has 51.5 percent of original size [2021-03-25 02:48:38,359 WARN L205 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 1778 DAG size of output: 1035 [2021-03-25 02:48:38,384 INFO L147 QuantifierPusher]: treesize reduction 56971, result has 51.9 percent of original size 61551 [2021-03-25 02:48:38,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:38,437 INFO L142 QuantifierPusher]: treesize reduction 3231, result has 51.1 percent of original size [2021-03-25 02:48:38,957 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 1701 DAG size of output: 978 [2021-03-25 02:48:38,982 INFO L147 QuantifierPusher]: treesize reduction 56005, result has 51.4 percent of original size 59251 [2021-03-25 02:48:39,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:39,032 INFO L142 QuantifierPusher]: treesize reduction 4317, result has 43.7 percent of original size [2021-03-25 02:48:39,431 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 1619 DAG size of output: 947 [2021-03-25 02:48:39,457 INFO L147 QuantifierPusher]: treesize reduction 53367, result has 51.6 percent of original size 56961 [2021-03-25 02:48:39,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:39,517 INFO L142 QuantifierPusher]: treesize reduction 5246, result has 38.8 percent of original size [2021-03-25 02:48:40,005 WARN L205 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 1546 DAG size of output: 893 [2021-03-25 02:48:40,046 INFO L147 QuantifierPusher]: treesize reduction 52406, result has 51.1 percent of original size 54681 [2021-03-25 02:48:40,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:40,111 INFO L142 QuantifierPusher]: treesize reduction 5226, result has 38.7 percent of original size [2021-03-25 02:48:40,394 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 1475 DAG size of output: 841 [2021-03-25 02:48:40,416 INFO L147 QuantifierPusher]: treesize reduction 51445, result has 50.5 percent of original size 52411 [2021-03-25 02:48:40,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:40,467 INFO L142 QuantifierPusher]: treesize reduction 5206, result has 38.6 percent of original size [2021-03-25 02:48:40,871 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 1406 DAG size of output: 791 [2021-03-25 02:48:40,903 INFO L147 QuantifierPusher]: treesize reduction 50484, result has 49.8 percent of original size 50151 [2021-03-25 02:48:40,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:48:40,965 INFO L142 QuantifierPusher]: treesize reduction 12537, result has 34.5 percent of original size [2021-03-25 02:48:41,471 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:42,623 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:44,426 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:48:46,909 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 02:49:34,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:49:34,408 INFO L142 QuantifierPusher]: treesize reduction 14, result has 99.7 percent of original size [2021-03-25 02:49:41,345 WARN L205 SmtUtils]: Spent 6.87 s on a formula simplification. DAG size of input: 6590 DAG size of output: 6472 [2021-03-25 02:49:41,503 INFO L147 QuantifierPusher]: treesize reduction -10656, result has 102.7 percent of original size 403436 [2021-03-25 02:49:41,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:49:41,877 INFO L142 QuantifierPusher]: treesize reduction -153, result has 101.4 percent of original size [2021-03-25 02:50:08,640 WARN L205 SmtUtils]: Spent 26.60 s on a formula simplification. DAG size of input: 12008 DAG size of output: 6317 [2021-03-25 02:50:08,793 INFO L147 QuantifierPusher]: treesize reduction 601168, result has 39.8 percent of original size 397821 [2021-03-25 02:50:09,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:50:09,369 INFO L142 QuantifierPusher]: treesize reduction 4370, result has 71.6 percent of original size [2021-03-25 02:50:36,212 WARN L205 SmtUtils]: Spent 26.70 s on a formula simplification. DAG size of input: 11795 DAG size of output: 6164 [2021-03-25 02:50:36,368 INFO L147 QuantifierPusher]: treesize reduction 596812, result has 39.7 percent of original size 392216 [2021-03-25 02:50:36,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:50:36,948 INFO L142 QuantifierPusher]: treesize reduction 4370, result has 71.5 percent of original size [2021-03-25 02:51:02,905 WARN L205 SmtUtils]: Spent 25.81 s on a formula simplification. DAG size of input: 11584 DAG size of output: 6013 [2021-03-25 02:51:03,054 INFO L147 QuantifierPusher]: treesize reduction 592456, result has 39.5 percent of original size 386621 [2021-03-25 02:51:03,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:51:03,611 INFO L142 QuantifierPusher]: treesize reduction 4370, result has 71.5 percent of original size [2021-03-25 02:51:28,739 WARN L205 SmtUtils]: Spent 24.99 s on a formula simplification. DAG size of input: 11375 DAG size of output: 5864 [2021-03-25 02:51:28,886 INFO L147 QuantifierPusher]: treesize reduction 588100, result has 39.3 percent of original size 381036 [2021-03-25 02:51:29,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:51:29,439 INFO L142 QuantifierPusher]: treesize reduction 4370, result has 71.4 percent of original size [2021-03-25 02:51:53,700 WARN L205 SmtUtils]: Spent 24.12 s on a formula simplification. DAG size of input: 11168 DAG size of output: 5717 [2021-03-25 02:51:53,845 INFO L147 QuantifierPusher]: treesize reduction 583744, result has 39.1 percent of original size 375461 [2021-03-25 02:51:54,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:51:54,382 INFO L142 QuantifierPusher]: treesize reduction 4370, result has 71.4 percent of original size [2021-03-25 02:52:18,126 WARN L205 SmtUtils]: Spent 23.61 s on a formula simplification. DAG size of input: 10963 DAG size of output: 5572 [2021-03-25 02:52:18,269 INFO L147 QuantifierPusher]: treesize reduction 579388, result has 39.0 percent of original size 369896 [2021-03-25 02:52:18,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:52:18,792 INFO L142 QuantifierPusher]: treesize reduction 4370, result has 71.3 percent of original size [2021-03-25 02:52:41,842 WARN L205 SmtUtils]: Spent 22.91 s on a formula simplification. DAG size of input: 10760 DAG size of output: 5429 [2021-03-25 02:52:41,983 INFO L147 QuantifierPusher]: treesize reduction 575032, result has 38.8 percent of original size 364341 [2021-03-25 02:52:42,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:52:42,497 INFO L142 QuantifierPusher]: treesize reduction 4372, result has 71.2 percent of original size [2021-03-25 02:53:49,199 WARN L205 SmtUtils]: Spent 1.11 m on a formula simplification. DAG size of input: 15730 DAG size of output: 11418 [2021-03-25 02:53:49,613 INFO L147 QuantifierPusher]: treesize reduction 189175, result has 84.9 percent of original size 1065972 [2021-03-25 02:53:50,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:53:50,654 INFO L142 QuantifierPusher]: treesize reduction 9700, result has 62.3 percent of original size [2021-03-25 02:55:25,922 WARN L205 SmtUtils]: Spent 1.58 m on a formula simplification. DAG size of input: 18633 DAG size of output: 11310 [2021-03-25 02:55:26,338 INFO L147 QuantifierPusher]: treesize reduction 865674, result has 54.9 percent of original size 1055219 [2021-03-25 02:55:27,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:55:27,631 INFO L142 QuantifierPusher]: treesize reduction 14246, result has 52.9 percent of original size [2021-03-25 02:57:00,429 WARN L205 SmtUtils]: Spent 1.54 m on a formula simplification. DAG size of input: 18366 DAG size of output: 11103 [2021-03-25 02:57:00,832 INFO L147 QuantifierPusher]: treesize reduction 861318, result has 54.8 percent of original size 1044476 [2021-03-25 02:57:01,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:57:02,071 INFO L142 QuantifierPusher]: treesize reduction 14236, result has 52.9 percent of original size [2021-03-25 02:58:33,343 WARN L205 SmtUtils]: Spent 1.52 m on a formula simplification. DAG size of input: 18101 DAG size of output: 10898 [2021-03-25 02:58:33,750 INFO L147 QuantifierPusher]: treesize reduction 856962, result has 54.7 percent of original size 1033743 [2021-03-25 02:58:34,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 02:58:35,025 INFO L142 QuantifierPusher]: treesize reduction 14226, result has 52.8 percent of original size [2021-03-25 03:00:04,627 WARN L205 SmtUtils]: Spent 1.49 m on a formula simplification. DAG size of input: 17838 DAG size of output: 10695 [2021-03-25 03:00:05,049 INFO L147 QuantifierPusher]: treesize reduction 852606, result has 54.5 percent of original size 1023020 [2021-03-25 03:00:06,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 03:00:06,386 INFO L142 QuantifierPusher]: treesize reduction 14216, result has 52.8 percent of original size [2021-03-25 03:01:33,603 WARN L205 SmtUtils]: Spent 1.45 m on a formula simplification. DAG size of input: 17577 DAG size of output: 10494 [2021-03-25 03:01:34,004 INFO L147 QuantifierPusher]: treesize reduction 848250, result has 54.4 percent of original size 1012307 [2021-03-25 03:01:35,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 03:01:35,232 INFO L142 QuantifierPusher]: treesize reduction 14206, result has 52.8 percent of original size Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown