/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix027_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 19:24:20,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 19:24:20,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 19:24:20,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 19:24:20,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 19:24:20,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 19:24:20,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 19:24:20,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 19:24:20,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 19:24:20,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 19:24:20,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 19:24:20,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 19:24:20,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 19:24:20,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 19:24:20,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 19:24:20,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 19:24:20,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 19:24:20,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 19:24:20,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 19:24:20,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 19:24:20,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 19:24:20,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 19:24:20,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 19:24:20,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 19:24:20,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 19:24:20,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 19:24:20,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 19:24:20,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 19:24:20,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 19:24:20,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 19:24:20,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 19:24:20,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 19:24:20,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 19:24:20,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 19:24:20,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 19:24:20,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 19:24:20,818 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 19:24:20,874 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 19:24:20,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 19:24:20,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 19:24:20,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 19:24:20,880 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 19:24:20,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 19:24:20,880 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 19:24:20,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 19:24:20,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 19:24:20,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 19:24:20,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 19:24:20,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 19:24:20,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 19:24:20,883 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 19:24:20,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 19:24:20,883 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 19:24:20,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 19:24:20,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 19:24:20,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 19:24:20,884 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 19:24:20,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 19:24:20,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 19:24:20,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 19:24:20,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 19:24:20,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 19:24:20,886 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 19:24:20,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 19:24:20,886 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 19:24:20,887 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 19:24:20,887 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 19:24:20,887 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 19:24:21,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 19:24:21,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 19:24:21,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 19:24:21,281 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 19:24:21,282 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 19:24:21,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix027_power.opt.i [2021-04-28 19:24:21,364 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee7b42a8e/d230ec2cfece4bad9cfaabdeb671711e/FLAGd5046ce80 [2021-04-28 19:24:22,166 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 19:24:22,166 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix027_power.opt.i [2021-04-28 19:24:22,187 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee7b42a8e/d230ec2cfece4bad9cfaabdeb671711e/FLAGd5046ce80 [2021-04-28 19:24:22,413 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee7b42a8e/d230ec2cfece4bad9cfaabdeb671711e [2021-04-28 19:24:22,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 19:24:22,474 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 19:24:22,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 19:24:22,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 19:24:22,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 19:24:22,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 07:24:22" (1/1) ... [2021-04-28 19:24:22,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f0b8daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:24:22, skipping insertion in model container [2021-04-28 19:24:22,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 07:24:22" (1/1) ... [2021-04-28 19:24:22,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 19:24:22,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 19:24:22,698 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix027_power.opt.i[950,963] [2021-04-28 19:24:22,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 19:24:23,004 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 19:24:23,025 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix027_power.opt.i[950,963] [2021-04-28 19:24:23,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 19:24:23,275 INFO L208 MainTranslator]: Completed translation [2021-04-28 19:24:23,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:24:23 WrapperNode [2021-04-28 19:24:23,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 19:24:23,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 19:24:23,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 19:24:23,280 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 19:24:23,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:24:23" (1/1) ... [2021-04-28 19:24:23,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:24:23" (1/1) ... [2021-04-28 19:24:23,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 19:24:23,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 19:24:23,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 19:24:23,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 19:24:23,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:24:23" (1/1) ... [2021-04-28 19:24:23,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:24:23" (1/1) ... [2021-04-28 19:24:23,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:24:23" (1/1) ... [2021-04-28 19:24:23,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:24:23" (1/1) ... [2021-04-28 19:24:23,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:24:23" (1/1) ... [2021-04-28 19:24:23,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:24:23" (1/1) ... [2021-04-28 19:24:23,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:24:23" (1/1) ... [2021-04-28 19:24:23,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 19:24:23,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 19:24:23,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 19:24:23,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 19:24:23,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:24:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 19:24:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 19:24:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 19:24:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 19:24:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 19:24:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 19:24:23,486 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 19:24:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 19:24:23,486 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 19:24:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 19:24:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 19:24:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 19:24:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 19:24:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 19:24:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 19:24:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 19:24:23,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 19:24:23,490 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 19:24:25,460 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 19:24:25,460 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 19:24:25,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 07:24:25 BoogieIcfgContainer [2021-04-28 19:24:25,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 19:24:25,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 19:24:25,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 19:24:25,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 19:24:25,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 07:24:22" (1/3) ... [2021-04-28 19:24:25,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@333a7f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 07:24:25, skipping insertion in model container [2021-04-28 19:24:25,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:24:23" (2/3) ... [2021-04-28 19:24:25,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@333a7f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 07:24:25, skipping insertion in model container [2021-04-28 19:24:25,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 07:24:25" (3/3) ... [2021-04-28 19:24:25,471 INFO L111 eAbstractionObserver]: Analyzing ICFG mix027_power.opt.i [2021-04-28 19:24:25,479 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 19:24:25,484 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 19:24:25,485 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 19:24:25,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,528 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,529 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,529 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,529 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,531 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,531 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,532 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,532 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,535 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,535 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,535 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,535 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,535 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,536 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,536 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,536 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,536 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,536 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,536 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,537 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,537 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,537 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,537 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,537 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,537 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,541 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,541 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,541 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,541 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,542 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,542 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,542 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,542 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,542 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,542 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,543 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,543 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,543 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,543 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,543 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,543 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,544 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,544 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,544 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,544 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,544 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,551 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,551 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,551 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,551 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,552 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,552 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,552 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,552 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,553 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,553 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,553 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,553 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,554 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,554 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,554 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,554 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,554 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,555 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,555 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,555 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,555 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,556 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,556 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,556 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,556 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,556 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,556 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,557 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,557 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,557 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,558 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,558 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,558 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,558 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,559 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,559 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,559 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,559 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,560 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,560 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,560 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,560 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,560 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,561 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,561 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,561 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,561 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,561 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,562 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,562 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,562 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,562 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,562 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,563 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,563 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,563 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,563 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,564 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,564 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,564 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,565 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,565 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,565 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,565 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,570 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,573 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,576 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,576 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,576 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,576 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,576 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,577 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,577 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,577 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,577 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,577 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,577 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,578 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,579 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,579 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,580 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,580 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,580 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,580 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,580 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,580 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,581 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,581 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,583 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,584 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,584 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,584 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:24:25,586 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 19:24:25,609 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 19:24:25,634 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 19:24:25,634 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 19:24:25,634 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 19:24:25,634 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 19:24:25,634 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 19:24:25,634 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 19:24:25,635 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 19:24:25,635 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 19:24:25,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 115 transitions, 250 flow [2021-04-28 19:24:25,700 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-04-28 19:24:25,700 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:24:25,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2021-04-28 19:24:25,706 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 115 transitions, 250 flow [2021-04-28 19:24:25,713 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 111 transitions, 234 flow [2021-04-28 19:24:25,714 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:24:25,730 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 111 transitions, 234 flow [2021-04-28 19:24:25,735 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 111 transitions, 234 flow [2021-04-28 19:24:25,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 111 transitions, 234 flow [2021-04-28 19:24:25,763 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-04-28 19:24:25,764 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:24:25,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2021-04-28 19:24:25,769 INFO L146 LiptonReduction]: Number of co-enabled transitions 2512 [2021-04-28 19:24:26,812 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 19:24:29,022 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 19:24:29,139 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 19:24:29,713 WARN L205 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 19:24:29,938 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 19:24:46,839 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:24:47,383 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:24:47,489 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:24:47,596 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:24:47,701 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:24:48,120 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:24:48,229 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:24:48,338 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:24:48,448 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:24:48,649 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:24:49,116 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 19:24:49,299 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 19:24:49,465 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 19:24:49,630 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 19:24:49,785 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 19:24:49,941 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 19:24:50,076 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 19:24:50,219 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 19:24:51,849 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:24:53,051 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:24:53,254 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:24:54,210 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:24:54,327 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:24:54,479 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:24:54,597 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:24:54,760 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:24:54,923 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:24:55,081 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:24:55,240 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:24:55,381 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:24:55,522 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:24:55,653 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:24:55,796 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:24:55,960 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:24:56,128 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:24:56,297 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:24:56,471 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:24:56,959 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:24:57,091 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:24:57,226 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:24:57,388 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:24:57,520 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:24:57,644 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:24:57,768 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:24:57,896 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:24:58,073 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:24:58,251 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:24:58,431 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:24:58,608 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:24:58,753 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:24:58,896 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:24:59,035 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:24:59,173 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:24:59,277 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:24:59,482 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:24:59,585 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:24:59,735 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:24:59,885 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:25:00,034 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:25:00,183 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:25:00,399 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:25:00,600 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:25:00,805 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:25:01,009 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:25:01,171 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 19:25:01,338 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 19:25:01,501 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 19:25:01,651 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 19:25:01,783 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:25:01,913 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:25:02,046 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:25:02,174 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:25:02,376 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:25:02,576 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:25:02,776 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:25:02,969 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:25:03,180 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:03,393 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:03,609 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:03,834 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:03,982 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:25:04,131 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:25:04,285 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:25:04,432 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:25:04,948 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2021-04-28 19:25:05,195 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-04-28 19:25:05,714 WARN L205 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2021-04-28 19:25:05,968 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-04-28 19:25:06,147 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:25:06,323 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:25:06,499 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:25:06,673 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:25:07,212 WARN L205 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-04-28 19:25:07,471 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-04-28 19:25:08,009 WARN L205 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-04-28 19:25:08,267 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-04-28 19:25:08,472 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:25:08,678 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:25:08,881 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:25:09,084 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:25:09,298 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:09,512 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:09,727 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:09,937 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:10,152 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:10,365 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:10,582 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:10,805 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:10,936 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:25:11,070 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:25:11,215 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:25:11,349 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:25:11,559 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:11,771 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:11,982 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:12,193 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:12,411 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:12,626 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:12,842 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:13,057 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:25:13,238 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:25:13,419 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:25:13,602 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:25:13,782 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:25:13,983 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:25:14,178 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:25:14,386 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:25:14,580 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:25:14,631 INFO L158 LiptonReduction]: Checked pairs total: 24971 [2021-04-28 19:25:14,631 INFO L160 LiptonReduction]: Total number of compositions: 289 [2021-04-28 19:25:14,637 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48924 [2021-04-28 19:25:14,663 INFO L129 PetriNetUnfolder]: 0/79 cut-off events. [2021-04-28 19:25:14,663 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:25:14,664 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:25:14,664 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:25:14,665 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:25:14,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:25:14,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1795852820, now seen corresponding path program 1 times [2021-04-28 19:25:14,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:25:14,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517779355] [2021-04-28 19:25:14,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:25:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:25:14,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:25:14,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 19:25:15,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:25:15,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517779355] [2021-04-28 19:25:15,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:25:15,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:25:15,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558631148] [2021-04-28 19:25:15,017 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:25:15,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:25:15,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:25:15,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:25:15,042 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 404 [2021-04-28 19:25:15,050 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 142 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:15,050 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:25:15,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 404 [2021-04-28 19:25:15,051 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:25:15,212 INFO L129 PetriNetUnfolder]: 29/429 cut-off events. [2021-04-28 19:25:15,213 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:25:15,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 429 events. 29/429 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3400 event pairs, 15 based on Foata normal form. 23/106 useless extension candidates. Maximal degree in co-relation 426. Up to 41 conditions per place. [2021-04-28 19:25:15,220 INFO L132 encePairwiseOnDemand]: 386/404 looper letters, 7 selfloop transitions, 2 changer transitions 63/141 dead transitions. [2021-04-28 19:25:15,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 141 transitions, 336 flow [2021-04-28 19:25:15,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:25:15,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:25:15,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1012 transitions. [2021-04-28 19:25:15,242 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.834983498349835 [2021-04-28 19:25:15,243 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1012 transitions. [2021-04-28 19:25:15,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1012 transitions. [2021-04-28 19:25:15,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:25:15,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1012 transitions. [2021-04-28 19:25:15,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:15,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 404.0) internal successors, (1616), 4 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:15,277 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 404.0) internal successors, (1616), 4 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:15,279 INFO L185 Difference]: Start difference. First operand has 154 places, 142 transitions, 296 flow. Second operand 3 states and 1012 transitions. [2021-04-28 19:25:15,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 141 transitions, 336 flow [2021-04-28 19:25:15,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 141 transitions, 332 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 19:25:15,288 INFO L241 Difference]: Finished difference. Result has 149 places, 75 transitions, 162 flow [2021-04-28 19:25:15,290 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=149, PETRI_TRANSITIONS=75} [2021-04-28 19:25:15,291 INFO L343 CegarLoopForPetriNet]: 154 programPoint places, -5 predicate places. [2021-04-28 19:25:15,292 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:25:15,292 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 75 transitions, 162 flow [2021-04-28 19:25:15,292 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 75 transitions, 162 flow [2021-04-28 19:25:15,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 75 transitions, 162 flow [2021-04-28 19:25:15,304 INFO L129 PetriNetUnfolder]: 0/75 cut-off events. [2021-04-28 19:25:15,304 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:25:15,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 75 events. 0/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 348 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 19:25:15,307 INFO L146 LiptonReduction]: Number of co-enabled transitions 2820 [2021-04-28 19:25:15,513 INFO L158 LiptonReduction]: Checked pairs total: 3748 [2021-04-28 19:25:15,513 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:25:15,513 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 221 [2021-04-28 19:25:15,516 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 75 transitions, 162 flow [2021-04-28 19:25:15,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:15,517 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:25:15,517 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:25:15,518 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 19:25:15,518 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:25:15,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:25:15,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1829390289, now seen corresponding path program 1 times [2021-04-28 19:25:15,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:25:15,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124566393] [2021-04-28 19:25:15,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:25:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:25:15,649 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 19:25:15,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 19:25:15,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:25:15,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124566393] [2021-04-28 19:25:15,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:25:15,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:25:15,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404946678] [2021-04-28 19:25:15,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:25:15,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:25:15,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:25:15,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:25:15,672 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 404 [2021-04-28 19:25:15,673 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 75 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:15,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:25:15,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 404 [2021-04-28 19:25:15,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:25:17,846 INFO L129 PetriNetUnfolder]: 5247/12903 cut-off events. [2021-04-28 19:25:17,846 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:25:17,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20562 conditions, 12903 events. 5247/12903 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1816. Compared 157778 event pairs, 1730 based on Foata normal form. 0/7940 useless extension candidates. Maximal degree in co-relation 20553. Up to 3952 conditions per place. [2021-04-28 19:25:17,933 INFO L132 encePairwiseOnDemand]: 380/404 looper letters, 8 selfloop transitions, 8 changer transitions 50/106 dead transitions. [2021-04-28 19:25:17,933 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 106 transitions, 356 flow [2021-04-28 19:25:17,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:25:17,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:25:17,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 783 transitions. [2021-04-28 19:25:17,937 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6460396039603961 [2021-04-28 19:25:17,937 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 783 transitions. [2021-04-28 19:25:17,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 783 transitions. [2021-04-28 19:25:17,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:25:17,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 783 transitions. [2021-04-28 19:25:17,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:17,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 404.0) internal successors, (1616), 4 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:17,945 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 404.0) internal successors, (1616), 4 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:17,945 INFO L185 Difference]: Start difference. First operand has 86 places, 75 transitions, 162 flow. Second operand 3 states and 783 transitions. [2021-04-28 19:25:17,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 106 transitions, 356 flow [2021-04-28 19:25:17,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 106 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 19:25:17,948 INFO L241 Difference]: Finished difference. Result has 88 places, 56 transitions, 168 flow [2021-04-28 19:25:17,948 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=88, PETRI_TRANSITIONS=56} [2021-04-28 19:25:17,949 INFO L343 CegarLoopForPetriNet]: 154 programPoint places, -66 predicate places. [2021-04-28 19:25:17,949 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:25:17,949 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 56 transitions, 168 flow [2021-04-28 19:25:17,950 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 56 transitions, 168 flow [2021-04-28 19:25:17,950 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 56 transitions, 168 flow [2021-04-28 19:25:18,077 INFO L129 PetriNetUnfolder]: 241/821 cut-off events. [2021-04-28 19:25:18,078 INFO L130 PetriNetUnfolder]: For 102/113 co-relation queries the response was YES. [2021-04-28 19:25:18,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1418 conditions, 821 events. 241/821 cut-off events. For 102/113 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 6731 event pairs, 83 based on Foata normal form. 0/556 useless extension candidates. Maximal degree in co-relation 1409. Up to 263 conditions per place. [2021-04-28 19:25:18,102 INFO L146 LiptonReduction]: Number of co-enabled transitions 1762 [2021-04-28 19:25:18,202 INFO L158 LiptonReduction]: Checked pairs total: 742 [2021-04-28 19:25:18,202 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:25:18,202 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 253 [2021-04-28 19:25:18,205 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 56 transitions, 168 flow [2021-04-28 19:25:18,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:18,206 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:25:18,206 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:25:18,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 19:25:18,206 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:25:18,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:25:18,207 INFO L82 PathProgramCache]: Analyzing trace with hash -876526371, now seen corresponding path program 1 times [2021-04-28 19:25:18,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:25:18,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694161978] [2021-04-28 19:25:18,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:25:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:25:18,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:25:18,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:25:18,282 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 19:25:18,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 19:25:18,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:25:18,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694161978] [2021-04-28 19:25:18,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:25:18,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 19:25:18,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435966495] [2021-04-28 19:25:18,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:25:18,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:25:18,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:25:18,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:25:18,299 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 404 [2021-04-28 19:25:18,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 56 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 240.75) internal successors, (963), 4 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:18,301 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:25:18,301 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 404 [2021-04-28 19:25:18,301 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:25:18,457 INFO L129 PetriNetUnfolder]: 170/631 cut-off events. [2021-04-28 19:25:18,458 INFO L130 PetriNetUnfolder]: For 112/349 co-relation queries the response was YES. [2021-04-28 19:25:18,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1372 conditions, 631 events. 170/631 cut-off events. For 112/349 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4680 event pairs, 24 based on Foata normal form. 13/447 useless extension candidates. Maximal degree in co-relation 1361. Up to 187 conditions per place. [2021-04-28 19:25:18,466 INFO L132 encePairwiseOnDemand]: 396/404 looper letters, 16 selfloop transitions, 8 changer transitions 0/64 dead transitions. [2021-04-28 19:25:18,467 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 64 transitions, 256 flow [2021-04-28 19:25:18,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:25:18,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:25:18,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 979 transitions. [2021-04-28 19:25:18,471 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6058168316831684 [2021-04-28 19:25:18,471 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 979 transitions. [2021-04-28 19:25:18,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 979 transitions. [2021-04-28 19:25:18,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:25:18,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 979 transitions. [2021-04-28 19:25:18,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 244.75) internal successors, (979), 4 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:18,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 404.0) internal successors, (2020), 5 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:18,483 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 404.0) internal successors, (2020), 5 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:18,483 INFO L185 Difference]: Start difference. First operand has 62 places, 56 transitions, 168 flow. Second operand 4 states and 979 transitions. [2021-04-28 19:25:18,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 64 transitions, 256 flow [2021-04-28 19:25:18,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 64 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 19:25:18,489 INFO L241 Difference]: Finished difference. Result has 66 places, 60 transitions, 210 flow [2021-04-28 19:25:18,489 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=66, PETRI_TRANSITIONS=60} [2021-04-28 19:25:18,489 INFO L343 CegarLoopForPetriNet]: 154 programPoint places, -88 predicate places. [2021-04-28 19:25:18,489 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:25:18,490 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 60 transitions, 210 flow [2021-04-28 19:25:18,490 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 60 transitions, 210 flow [2021-04-28 19:25:18,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 60 transitions, 210 flow [2021-04-28 19:25:18,582 INFO L129 PetriNetUnfolder]: 170/584 cut-off events. [2021-04-28 19:25:18,582 INFO L130 PetriNetUnfolder]: For 185/192 co-relation queries the response was YES. [2021-04-28 19:25:18,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1171 conditions, 584 events. 170/584 cut-off events. For 185/192 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4295 event pairs, 48 based on Foata normal form. 0/411 useless extension candidates. Maximal degree in co-relation 1159. Up to 187 conditions per place. [2021-04-28 19:25:18,600 INFO L146 LiptonReduction]: Number of co-enabled transitions 1930 [2021-04-28 19:25:18,615 INFO L158 LiptonReduction]: Checked pairs total: 879 [2021-04-28 19:25:18,615 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:25:18,615 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 126 [2021-04-28 19:25:18,617 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 60 transitions, 210 flow [2021-04-28 19:25:18,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 240.75) internal successors, (963), 4 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:18,619 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:25:18,619 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:25:18,619 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 19:25:18,619 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:25:18,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:25:18,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1402543606, now seen corresponding path program 1 times [2021-04-28 19:25:18,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:25:18,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603681565] [2021-04-28 19:25:18,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:25:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:25:18,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:25:18,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:25:18,679 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 19:25:18,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 19:25:18,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:25:18,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603681565] [2021-04-28 19:25:18,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:25:18,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 19:25:18,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972317011] [2021-04-28 19:25:18,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:25:18,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:25:18,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:25:18,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:25:18,695 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 404 [2021-04-28 19:25:18,697 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 60 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:18,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:25:18,697 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 404 [2021-04-28 19:25:18,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:25:18,834 INFO L129 PetriNetUnfolder]: 152/540 cut-off events. [2021-04-28 19:25:18,834 INFO L130 PetriNetUnfolder]: For 215/474 co-relation queries the response was YES. [2021-04-28 19:25:18,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1341 conditions, 540 events. 152/540 cut-off events. For 215/474 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3706 event pairs, 30 based on Foata normal form. 12/394 useless extension candidates. Maximal degree in co-relation 1327. Up to 171 conditions per place. [2021-04-28 19:25:18,842 INFO L132 encePairwiseOnDemand]: 395/404 looper letters, 16 selfloop transitions, 18 changer transitions 0/74 dead transitions. [2021-04-28 19:25:18,843 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 74 transitions, 364 flow [2021-04-28 19:25:18,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:25:18,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:25:18,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 983 transitions. [2021-04-28 19:25:18,847 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6082920792079208 [2021-04-28 19:25:18,847 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 983 transitions. [2021-04-28 19:25:18,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 983 transitions. [2021-04-28 19:25:18,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:25:18,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 983 transitions. [2021-04-28 19:25:18,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 245.75) internal successors, (983), 4 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:18,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 404.0) internal successors, (2020), 5 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:18,858 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 404.0) internal successors, (2020), 5 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:18,859 INFO L185 Difference]: Start difference. First operand has 66 places, 60 transitions, 210 flow. Second operand 4 states and 983 transitions. [2021-04-28 19:25:18,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 74 transitions, 364 flow [2021-04-28 19:25:18,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 74 transitions, 359 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 19:25:18,864 INFO L241 Difference]: Finished difference. Result has 71 places, 71 transitions, 364 flow [2021-04-28 19:25:18,864 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=364, PETRI_PLACES=71, PETRI_TRANSITIONS=71} [2021-04-28 19:25:18,864 INFO L343 CegarLoopForPetriNet]: 154 programPoint places, -83 predicate places. [2021-04-28 19:25:18,865 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:25:18,865 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 71 transitions, 364 flow [2021-04-28 19:25:18,865 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 71 transitions, 364 flow [2021-04-28 19:25:18,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 71 transitions, 364 flow [2021-04-28 19:25:18,957 INFO L129 PetriNetUnfolder]: 152/554 cut-off events. [2021-04-28 19:25:18,957 INFO L130 PetriNetUnfolder]: For 600/624 co-relation queries the response was YES. [2021-04-28 19:25:18,961 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1408 conditions, 554 events. 152/554 cut-off events. For 600/624 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4034 event pairs, 40 based on Foata normal form. 2/388 useless extension candidates. Maximal degree in co-relation 1392. Up to 171 conditions per place. [2021-04-28 19:25:18,977 INFO L146 LiptonReduction]: Number of co-enabled transitions 2358 [2021-04-28 19:25:19,312 INFO L158 LiptonReduction]: Checked pairs total: 1291 [2021-04-28 19:25:19,312 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:25:19,312 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 447 [2021-04-28 19:25:19,315 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 71 transitions, 364 flow [2021-04-28 19:25:19,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:19,316 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:25:19,316 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:25:19,316 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 19:25:19,317 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:25:19,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:25:19,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1654745206, now seen corresponding path program 1 times [2021-04-28 19:25:19,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:25:19,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440516029] [2021-04-28 19:25:19,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:25:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:25:19,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:25:19,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:25:19,437 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:25:19,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:25:19,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:25:19,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:25:19,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:25:19,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440516029] [2021-04-28 19:25:19,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:25:19,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:25:19,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301193679] [2021-04-28 19:25:19,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:25:19,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:25:19,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:25:19,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:25:19,451 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 404 [2021-04-28 19:25:19,453 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 71 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 307.75) internal successors, (1231), 4 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:19,453 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:25:19,453 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 404 [2021-04-28 19:25:19,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:25:28,802 INFO L129 PetriNetUnfolder]: 48532/73279 cut-off events. [2021-04-28 19:25:28,802 INFO L130 PetriNetUnfolder]: For 4555/4728 co-relation queries the response was YES. [2021-04-28 19:25:29,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149345 conditions, 73279 events. 48532/73279 cut-off events. For 4555/4728 co-relation queries the response was YES. Maximal size of possible extension queue 12105. Compared 712513 event pairs, 25061 based on Foata normal form. 1364/22010 useless extension candidates. Maximal degree in co-relation 149327. Up to 46444 conditions per place. [2021-04-28 19:25:29,547 INFO L132 encePairwiseOnDemand]: 384/404 looper letters, 34 selfloop transitions, 33 changer transitions 0/115 dead transitions. [2021-04-28 19:25:29,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 115 transitions, 586 flow [2021-04-28 19:25:29,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 19:25:29,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 19:25:29,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1601 transitions. [2021-04-28 19:25:29,553 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7925742574257426 [2021-04-28 19:25:29,554 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1601 transitions. [2021-04-28 19:25:29,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1601 transitions. [2021-04-28 19:25:29,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:25:29,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1601 transitions. [2021-04-28 19:25:29,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 320.2) internal successors, (1601), 5 states have internal predecessors, (1601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:29,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 404.0) internal successors, (2424), 6 states have internal predecessors, (2424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:29,570 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 404.0) internal successors, (2424), 6 states have internal predecessors, (2424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:29,570 INFO L185 Difference]: Start difference. First operand has 71 places, 71 transitions, 364 flow. Second operand 5 states and 1601 transitions. [2021-04-28 19:25:29,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 115 transitions, 586 flow [2021-04-28 19:25:29,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 115 transitions, 586 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 19:25:29,609 INFO L241 Difference]: Finished difference. Result has 78 places, 102 transitions, 610 flow [2021-04-28 19:25:29,609 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=610, PETRI_PLACES=78, PETRI_TRANSITIONS=102} [2021-04-28 19:25:29,609 INFO L343 CegarLoopForPetriNet]: 154 programPoint places, -76 predicate places. [2021-04-28 19:25:29,609 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:25:29,610 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 102 transitions, 610 flow [2021-04-28 19:25:29,610 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 102 transitions, 610 flow [2021-04-28 19:25:29,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 102 transitions, 610 flow [2021-04-28 19:25:36,011 INFO L129 PetriNetUnfolder]: 43914/67191 cut-off events. [2021-04-28 19:25:36,011 INFO L130 PetriNetUnfolder]: For 14882/134341 co-relation queries the response was YES. [2021-04-28 19:25:36,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 192714 conditions, 67191 events. 43914/67191 cut-off events. For 14882/134341 co-relation queries the response was YES. Maximal size of possible extension queue 10744. Compared 668056 event pairs, 23968 based on Foata normal form. 16/19391 useless extension candidates. Maximal degree in co-relation 192693. Up to 63254 conditions per place. [2021-04-28 19:25:37,270 INFO L146 LiptonReduction]: Number of co-enabled transitions 3722 [2021-04-28 19:25:53,342 INFO L158 LiptonReduction]: Checked pairs total: 2151 [2021-04-28 19:25:53,343 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:25:53,343 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23734 [2021-04-28 19:25:53,345 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 102 transitions, 610 flow [2021-04-28 19:25:53,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 307.75) internal successors, (1231), 4 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:25:53,347 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:25:53,347 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:25:53,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 19:25:53,347 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:25:53,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:25:53,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1372233967, now seen corresponding path program 1 times [2021-04-28 19:25:53,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:25:53,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416358730] [2021-04-28 19:25:53,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:25:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:25:53,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:25:53,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:25:53,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:25:53,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:25:53,468 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 19:25:53,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 19:25:53,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:25:53,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416358730] [2021-04-28 19:25:53,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:25:53,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:25:53,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294909325] [2021-04-28 19:25:53,484 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:25:53,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:25:53,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:25:53,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:25:53,492 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 404 [2021-04-28 19:25:53,494 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 102 transitions, 610 flow. Second operand has 4 states, 4 states have (on average 241.25) internal successors, (965), 4 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) [2021-04-28 19:25:53,494 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:25:53,494 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 404 [2021-04-28 19:25:53,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:26:02,934 INFO L129 PetriNetUnfolder]: 72090/108381 cut-off events. [2021-04-28 19:26:02,934 INFO L130 PetriNetUnfolder]: For 28407/350984 co-relation queries the response was YES. [2021-04-28 19:26:03,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 312199 conditions, 108381 events. 72090/108381 cut-off events. For 28407/350984 co-relation queries the response was YES. Maximal size of possible extension queue 17538. Compared 1089396 event pairs, 41115 based on Foata normal form. 735/31987 useless extension candidates. Maximal degree in co-relation 312176. Up to 102938 conditions per place. [2021-04-28 19:26:04,028 INFO L132 encePairwiseOnDemand]: 395/404 looper letters, 19 selfloop transitions, 24 changer transitions 0/114 dead transitions. [2021-04-28 19:26:04,029 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 114 transitions, 794 flow [2021-04-28 19:26:04,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:26:04,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:26:04,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 983 transitions. [2021-04-28 19:26:04,034 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6082920792079208 [2021-04-28 19:26:04,034 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 983 transitions. [2021-04-28 19:26:04,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 983 transitions. [2021-04-28 19:26:04,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:26:04,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 983 transitions. [2021-04-28 19:26:04,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 245.75) internal successors, (983), 4 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:26:04,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 404.0) internal successors, (2020), 5 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:26:04,043 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 404.0) internal successors, (2020), 5 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:26:04,043 INFO L185 Difference]: Start difference. First operand has 78 places, 102 transitions, 610 flow. Second operand 4 states and 983 transitions. [2021-04-28 19:26:04,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 114 transitions, 794 flow [2021-04-28 19:26:04,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 114 transitions, 794 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 19:26:04,356 INFO L241 Difference]: Finished difference. Result has 84 places, 109 transitions, 797 flow [2021-04-28 19:26:04,356 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=797, PETRI_PLACES=84, PETRI_TRANSITIONS=109} [2021-04-28 19:26:04,357 INFO L343 CegarLoopForPetriNet]: 154 programPoint places, -70 predicate places. [2021-04-28 19:26:04,357 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:26:04,357 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 109 transitions, 797 flow [2021-04-28 19:26:04,357 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 109 transitions, 797 flow [2021-04-28 19:26:04,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 109 transitions, 797 flow [2021-04-28 19:26:18,679 INFO L129 PetriNetUnfolder]: 76477/114733 cut-off events. [2021-04-28 19:26:18,680 INFO L130 PetriNetUnfolder]: For 25001/253384 co-relation queries the response was YES. [2021-04-28 19:26:19,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 329975 conditions, 114733 events. 76477/114733 cut-off events. For 25001/253384 co-relation queries the response was YES. Maximal size of possible extension queue 17866. Compared 1157306 event pairs, 42870 based on Foata normal form. 32/32724 useless extension candidates. Maximal degree in co-relation 329949. Up to 109493 conditions per place. [2021-04-28 19:26:20,512 INFO L146 LiptonReduction]: Number of co-enabled transitions 4348 [2021-04-28 19:26:36,617 INFO L158 LiptonReduction]: Checked pairs total: 2364 [2021-04-28 19:26:36,617 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:26:36,617 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32260 [2021-04-28 19:26:36,619 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 109 transitions, 797 flow [2021-04-28 19:26:36,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 241.25) internal successors, (965), 4 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) [2021-04-28 19:26:36,619 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:26:36,619 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:26:36,620 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 19:26:36,620 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:26:36,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:26:36,621 INFO L82 PathProgramCache]: Analyzing trace with hash -930880733, now seen corresponding path program 1 times [2021-04-28 19:26:36,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:26:36,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458963630] [2021-04-28 19:26:36,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:26:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:26:36,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:26:36,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:26:36,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:26:36,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:26:36,702 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:26:36,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:26:36,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:26:36,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:26:36,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:26:36,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458963630] [2021-04-28 19:26:36,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:26:36,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 19:26:36,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090475649] [2021-04-28 19:26:36,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 19:26:36,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:26:36,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 19:26:36,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 19:26:36,715 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 404 [2021-04-28 19:26:36,717 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 109 transitions, 797 flow. Second operand has 5 states, 5 states have (on average 307.8) internal successors, (1539), 5 states have internal predecessors, (1539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:26:36,717 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:26:36,717 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 404 [2021-04-28 19:26:36,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:26:53,693 INFO L129 PetriNetUnfolder]: 88311/137306 cut-off events. [2021-04-28 19:26:53,693 INFO L130 PetriNetUnfolder]: For 47683/1758976 co-relation queries the response was YES. [2021-04-28 19:26:54,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 528537 conditions, 137306 events. 88311/137306 cut-off events. For 47683/1758976 co-relation queries the response was YES. Maximal size of possible extension queue 24480. Compared 1444678 event pairs, 17274 based on Foata normal form. 2644/45169 useless extension candidates. Maximal degree in co-relation 528509. Up to 128408 conditions per place. [2021-04-28 19:26:54,878 INFO L132 encePairwiseOnDemand]: 384/404 looper letters, 35 selfloop transitions, 64 changer transitions 0/154 dead transitions. [2021-04-28 19:26:54,878 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 154 transitions, 1244 flow [2021-04-28 19:26:54,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 19:26:54,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 19:26:54,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2245 transitions. [2021-04-28 19:26:54,886 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7938472418670438 [2021-04-28 19:26:54,886 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2245 transitions. [2021-04-28 19:26:54,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2245 transitions. [2021-04-28 19:26:54,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:26:54,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2245 transitions. [2021-04-28 19:26:54,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 320.7142857142857) internal successors, (2245), 7 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:26:54,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 404.0) internal successors, (3232), 8 states have internal predecessors, (3232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:26:54,908 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 404.0) internal successors, (3232), 8 states have internal predecessors, (3232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:26:54,908 INFO L185 Difference]: Start difference. First operand has 84 places, 109 transitions, 797 flow. Second operand 7 states and 2245 transitions. [2021-04-28 19:26:54,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 154 transitions, 1244 flow [2021-04-28 19:26:55,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 154 transitions, 1242 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-04-28 19:26:55,202 INFO L241 Difference]: Finished difference. Result has 93 places, 140 transitions, 1237 flow [2021-04-28 19:26:55,202 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1237, PETRI_PLACES=93, PETRI_TRANSITIONS=140} [2021-04-28 19:26:55,202 INFO L343 CegarLoopForPetriNet]: 154 programPoint places, -61 predicate places. [2021-04-28 19:26:55,202 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:26:55,203 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 140 transitions, 1237 flow [2021-04-28 19:26:55,203 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 140 transitions, 1237 flow [2021-04-28 19:26:55,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 140 transitions, 1237 flow [2021-04-28 19:27:11,181 INFO L129 PetriNetUnfolder]: 83681/132980 cut-off events. [2021-04-28 19:27:11,182 INFO L130 PetriNetUnfolder]: For 385914/1596348 co-relation queries the response was YES. [2021-04-28 19:27:12,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 630819 conditions, 132980 events. 83681/132980 cut-off events. For 385914/1596348 co-relation queries the response was YES. Maximal size of possible extension queue 22138. Compared 1475619 event pairs, 17472 based on Foata normal form. 70/39326 useless extension candidates. Maximal degree in co-relation 630788. Up to 127235 conditions per place. [2021-04-28 19:27:13,779 INFO L146 LiptonReduction]: Number of co-enabled transitions 6054 [2021-04-28 19:27:48,497 INFO L158 LiptonReduction]: Checked pairs total: 4345 [2021-04-28 19:27:48,497 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:27:48,497 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 53295 [2021-04-28 19:27:48,499 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 140 transitions, 1237 flow [2021-04-28 19:27:48,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 307.8) internal successors, (1539), 5 states have internal predecessors, (1539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:27:48,499 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:27:48,500 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:27:48,500 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 19:27:48,500 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:27:48,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:27:48,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1084968522, now seen corresponding path program 1 times [2021-04-28 19:27:48,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:27:48,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191719663] [2021-04-28 19:27:48,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:27:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:27:48,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:27:48,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:27:48,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:27:48,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:27:48,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:27:48,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:27:48,583 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:27:48,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:27:48,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:27:48,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:27:48,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:27:48,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191719663] [2021-04-28 19:27:48,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:27:48,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 19:27:48,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498969179] [2021-04-28 19:27:48,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 19:27:48,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:27:48,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 19:27:48,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 19:27:48,598 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 404 [2021-04-28 19:27:48,600 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 140 transitions, 1237 flow. Second operand has 6 states, 6 states have (on average 307.8333333333333) internal successors, (1847), 6 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:27:48,600 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:27:48,600 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 404 [2021-04-28 19:27:48,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:28:07,897 INFO L129 PetriNetUnfolder]: 82659/136496 cut-off events. [2021-04-28 19:28:07,897 INFO L130 PetriNetUnfolder]: For 152557/4330885 co-relation queries the response was YES. [2021-04-28 19:28:08,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 776598 conditions, 136496 events. 82659/136496 cut-off events. For 152557/4330885 co-relation queries the response was YES. Maximal size of possible extension queue 25740. Compared 1551704 event pairs, 2748 based on Foata normal form. 2808/44747 useless extension candidates. Maximal degree in co-relation 776565. Up to 128831 conditions per place. [2021-04-28 19:28:09,270 INFO L132 encePairwiseOnDemand]: 384/404 looper letters, 24 selfloop transitions, 95 changer transitions 12/186 dead transitions. [2021-04-28 19:28:09,270 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 186 transitions, 1909 flow [2021-04-28 19:28:09,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 19:28:09,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 19:28:09,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2889 transitions. [2021-04-28 19:28:09,279 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7945544554455446 [2021-04-28 19:28:09,280 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2889 transitions. [2021-04-28 19:28:09,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2889 transitions. [2021-04-28 19:28:09,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:28:09,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2889 transitions. [2021-04-28 19:28:09,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 321.0) internal successors, (2889), 9 states have internal predecessors, (2889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:28:09,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 404.0) internal successors, (4040), 10 states have internal predecessors, (4040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:28:09,300 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 404.0) internal successors, (4040), 10 states have internal predecessors, (4040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:28:09,300 INFO L185 Difference]: Start difference. First operand has 93 places, 140 transitions, 1237 flow. Second operand 9 states and 2889 transitions. [2021-04-28 19:28:09,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 186 transitions, 1909 flow [2021-04-28 19:28:40,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 186 transitions, 1746 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 19:28:40,756 INFO L241 Difference]: Finished difference. Result has 101 places, 171 transitions, 1665 flow [2021-04-28 19:28:40,756 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=1075, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1665, PETRI_PLACES=101, PETRI_TRANSITIONS=171} [2021-04-28 19:28:40,757 INFO L343 CegarLoopForPetriNet]: 154 programPoint places, -53 predicate places. [2021-04-28 19:28:40,757 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:28:40,757 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 171 transitions, 1665 flow [2021-04-28 19:28:40,757 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 171 transitions, 1665 flow [2021-04-28 19:28:40,759 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 171 transitions, 1665 flow [2021-04-28 19:28:55,388 INFO L129 PetriNetUnfolder]: 61389/110251 cut-off events. [2021-04-28 19:28:55,389 INFO L130 PetriNetUnfolder]: For 764327/1370227 co-relation queries the response was YES. [2021-04-28 19:28:56,130 INFO L84 FinitePrefix]: Finished finitePrefix Result has 641491 conditions, 110251 events. 61389/110251 cut-off events. For 764327/1370227 co-relation queries the response was YES. Maximal size of possible extension queue 21899. Compared 1396951 event pairs, 2643 based on Foata normal form. 4/32189 useless extension candidates. Maximal degree in co-relation 641457. Up to 88975 conditions per place. [2021-04-28 19:28:57,420 INFO L146 LiptonReduction]: Number of co-enabled transitions 6902 [2021-04-28 19:31:19,799 INFO L158 LiptonReduction]: Checked pairs total: 6431 [2021-04-28 19:31:19,800 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:31:19,800 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 159043 [2021-04-28 19:31:19,805 INFO L480 AbstractCegarLoop]: Abstraction has has 101 places, 171 transitions, 1665 flow [2021-04-28 19:31:19,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 307.8333333333333) internal successors, (1847), 6 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:31:19,806 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:31:19,806 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:31:19,806 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 19:31:19,806 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:31:19,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:31:19,807 INFO L82 PathProgramCache]: Analyzing trace with hash -86192570, now seen corresponding path program 1 times [2021-04-28 19:31:19,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:31:19,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058321153] [2021-04-28 19:31:19,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:31:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:31:19,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:31:19,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:31:19,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:31:19,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:31:19,918 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 19:31:19,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 19:31:19,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:31:19,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058321153] [2021-04-28 19:31:19,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:31:19,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:31:19,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997606560] [2021-04-28 19:31:19,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:31:19,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:31:19,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:31:19,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:31:19,933 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 404 [2021-04-28 19:31:19,934 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 171 transitions, 1665 flow. Second operand has 4 states, 4 states have (on average 239.25) internal successors, (957), 4 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:31:19,935 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:31:19,935 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 404 [2021-04-28 19:31:19,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:31:41,355 INFO L129 PetriNetUnfolder]: 77905/137631 cut-off events. [2021-04-28 19:31:41,355 INFO L130 PetriNetUnfolder]: For 1025430/1873648 co-relation queries the response was YES. [2021-04-28 19:31:42,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 804628 conditions, 137631 events. 77905/137631 cut-off events. For 1025430/1873648 co-relation queries the response was YES. Maximal size of possible extension queue 25575. Compared 1694356 event pairs, 3902 based on Foata normal form. 322/41010 useless extension candidates. Maximal degree in co-relation 804592. Up to 111502 conditions per place. [2021-04-28 19:31:43,007 INFO L132 encePairwiseOnDemand]: 394/404 looper letters, 24 selfloop transitions, 45 changer transitions 0/201 dead transitions. [2021-04-28 19:31:43,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 201 transitions, 2138 flow [2021-04-28 19:31:43,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 19:31:43,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 19:31:43,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1217 transitions. [2021-04-28 19:31:43,012 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6024752475247525 [2021-04-28 19:31:43,013 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1217 transitions. [2021-04-28 19:31:43,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1217 transitions. [2021-04-28 19:31:43,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:31:43,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1217 transitions. [2021-04-28 19:31:43,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 243.4) internal successors, (1217), 5 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:31:43,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 404.0) internal successors, (2424), 6 states have internal predecessors, (2424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:31:43,022 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 404.0) internal successors, (2424), 6 states have internal predecessors, (2424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:31:43,022 INFO L185 Difference]: Start difference. First operand has 101 places, 171 transitions, 1665 flow. Second operand 5 states and 1217 transitions. [2021-04-28 19:31:43,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 201 transitions, 2138 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown