/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/thin002_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:55:57,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:55:57,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:55:57,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:55:57,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:55:57,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:55:57,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:55:57,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:55:57,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:55:57,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:55:57,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:55:57,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:55:57,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:55:57,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:55:57,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:55:57,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:55:57,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:55:57,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:55:57,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:55:57,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:55:57,512 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 [2021-04-29 00:55:57,577 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:55:57,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:55:57,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:55:57,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:55:57,580 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:55:57,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:55:57,581 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:55:57,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:55:57,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:55:57,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:55:57,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:55:57,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:55:57,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:55:57,583 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:55:57,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:55:57,583 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:55:57,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:55:57,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:55:57,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:55:57,584 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:55:57,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:55:57,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:55:57,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:55:57,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:55:57,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:55:57,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:55:57,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:55:57,586 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:55:57,586 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:55:57,587 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:55:57,587 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:55:58,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:55:58,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:55:58,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:55:58,126 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:55:58,127 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:55:58,129 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2021-04-29 00:55:58,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/121e8684f/3e85ec7bd9b7415c87b548ee621f645a/FLAG26e0b1f7d [2021-04-29 00:55:59,219 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:55:59,225 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2021-04-29 00:55:59,252 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/121e8684f/3e85ec7bd9b7415c87b548ee621f645a/FLAG26e0b1f7d [2021-04-29 00:55:59,414 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/121e8684f/3e85ec7bd9b7415c87b548ee621f645a [2021-04-29 00:55:59,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:55:59,464 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:55:59,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:55:59,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:55:59,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:55:59,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:55:59" (1/1) ... [2021-04-29 00:55:59,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21e18d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:55:59, skipping insertion in model container [2021-04-29 00:55:59,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:55:59" (1/1) ... [2021-04-29 00:55:59,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:55:59,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:55:59,831 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/thin002_pso.opt.i[949,962] [2021-04-29 00:56:00,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:56:00,187 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:56:00,208 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/thin002_pso.opt.i[949,962] [2021-04-29 00:56:00,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:56:00,478 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:56:00,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:00 WrapperNode [2021-04-29 00:56:00,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:56:00,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:56:00,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:56:00,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:56:00,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:00" (1/1) ... [2021-04-29 00:56:00,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:00" (1/1) ... [2021-04-29 00:56:00,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:56:00,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:56:00,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:56:00,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:56:00,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:00" (1/1) ... [2021-04-29 00:56:00,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:00" (1/1) ... [2021-04-29 00:56:00,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:00" (1/1) ... [2021-04-29 00:56:00,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:00" (1/1) ... [2021-04-29 00:56:00,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:00" (1/1) ... [2021-04-29 00:56:00,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:00" (1/1) ... [2021-04-29 00:56:00,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:00" (1/1) ... [2021-04-29 00:56:00,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:56:00,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:56:00,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:56:00,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:56:00,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:00" (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 [2021-04-29 00:56:00,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:56:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:56:00,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:56:00,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:56:00,726 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:56:00,727 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:56:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:56:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:56:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:56:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:56:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-29 00:56:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-29 00:56:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:56:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:56:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:56:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:56:00,732 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:56:01,507 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:56:01,508 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:56:01,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:56:01 BoogieIcfgContainer [2021-04-29 00:56:01,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:56:01,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:56:01,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:56:01,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:56:01,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:55:59" (1/3) ... [2021-04-29 00:56:01,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b43eea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:56:01, skipping insertion in model container [2021-04-29 00:56:01,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:00" (2/3) ... [2021-04-29 00:56:01,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b43eea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:56:01, skipping insertion in model container [2021-04-29 00:56:01,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:56:01" (3/3) ... [2021-04-29 00:56:01,528 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.opt.i [2021-04-29 00:56:01,537 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:56:01,544 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:56:01,546 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:56:01,610 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,610 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,611 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,611 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,611 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,611 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,612 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,612 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,622 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,622 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,623 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,623 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,623 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,623 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,623 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,624 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,628 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,628 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,630 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,630 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,632 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,633 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,633 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,633 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,633 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,633 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,634 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,635 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,636 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,637 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,637 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,637 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,638 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,638 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,638 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,639 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,639 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,639 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,639 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,639 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,640 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,640 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,640 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,641 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,644 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,644 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,652 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,655 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,659 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,660 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,660 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,660 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,667 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,668 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:01,672 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:56:01,701 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-29 00:56:01,745 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:56:01,746 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:56:01,746 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:56:01,746 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:56:01,746 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:56:01,746 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:56:01,746 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:56:01,746 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:56:01,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 91 transitions, 202 flow [2021-04-29 00:56:01,826 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2021-04-29 00:56:01,826 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:56:01,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2021-04-29 00:56:01,833 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 91 transitions, 202 flow [2021-04-29 00:56:01,841 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 73 transitions, 158 flow [2021-04-29 00:56:01,844 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:56:01,871 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 73 transitions, 158 flow [2021-04-29 00:56:01,880 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 73 transitions, 158 flow [2021-04-29 00:56:01,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 73 transitions, 158 flow [2021-04-29 00:56:01,952 INFO L129 PetriNetUnfolder]: 1/73 cut-off events. [2021-04-29 00:56:01,952 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:56:01,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 73 events. 1/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-29 00:56:01,961 INFO L146 LiptonReduction]: Number of co-enabled transitions 1392 [2021-04-29 00:56:08,272 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:56:08,455 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:56:08,615 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:56:08,768 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:56:09,075 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:56:09,246 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:56:09,413 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:56:09,583 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:56:09,768 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:56:11,620 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:56:11,815 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:56:11,978 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:56:12,128 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:56:12,307 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:56:12,483 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:56:12,685 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:56:12,899 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:56:15,483 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:56:15,665 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:56:15,828 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:56:15,979 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:56:16,158 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:56:16,376 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:56:16,589 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:56:16,822 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:56:17,129 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:17,429 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:17,627 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:56:17,778 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:56:18,088 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-04-29 00:56:18,205 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-29 00:56:18,488 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-04-29 00:56:18,619 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-29 00:56:18,805 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:56:19,061 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:56:19,330 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:56:19,584 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:56:19,858 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:20,161 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:20,464 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:20,757 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:21,071 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:21,370 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:21,650 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-04-29 00:56:21,922 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-04-29 00:56:22,202 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-04-29 00:56:22,480 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-04-29 00:56:22,830 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-04-29 00:56:22,942 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 00:56:23,195 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-04-29 00:56:23,309 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 00:56:23,519 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:23,634 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-29 00:56:23,840 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:24,005 INFO L158 LiptonReduction]: Checked pairs total: 12552 [2021-04-29 00:56:24,005 INFO L160 LiptonReduction]: Total number of compositions: 141 [2021-04-29 00:56:24,011 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22170 [2021-04-29 00:56:24,037 INFO L129 PetriNetUnfolder]: 0/85 cut-off events. [2021-04-29 00:56:24,037 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:56:24,037 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:56:24,039 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:56:24,039 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:56:24,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:56:24,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1140806113, now seen corresponding path program 1 times [2021-04-29 00:56:24,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:56:24,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637315027] [2021-04-29 00:56:24,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:56:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:56:24,527 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:56:24,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:56:24,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:56:24,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637315027] [2021-04-29 00:56:24,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:56:24,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:56:24,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199992380] [2021-04-29 00:56:24,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:56:24,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:56:24,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:56:24,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:56:24,613 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 232 [2021-04-29 00:56:24,624 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 91 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:24,624 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:56:24,625 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 232 [2021-04-29 00:56:24,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:56:24,907 INFO L129 PetriNetUnfolder]: 233/870 cut-off events. [2021-04-29 00:56:24,907 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:56:24,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1261 conditions, 870 events. 233/870 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 8014 event pairs, 70 based on Foata normal form. 0/488 useless extension candidates. Maximal degree in co-relation 1198. Up to 354 conditions per place. [2021-04-29 00:56:24,919 INFO L132 encePairwiseOnDemand]: 207/232 looper letters, 5 selfloop transitions, 5 changer transitions 47/100 dead transitions. [2021-04-29 00:56:24,919 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 100 transitions, 290 flow [2021-04-29 00:56:24,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:56:24,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:56:24,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 464 transitions. [2021-04-29 00:56:24,940 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2021-04-29 00:56:24,942 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 464 transitions. [2021-04-29 00:56:24,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 464 transitions. [2021-04-29 00:56:24,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:56:24,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 464 transitions. [2021-04-29 00:56:24,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:24,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:24,965 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:24,969 INFO L185 Difference]: Start difference. First operand has 104 places, 91 transitions, 194 flow. Second operand 3 states and 464 transitions. [2021-04-29 00:56:24,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 100 transitions, 290 flow [2021-04-29 00:56:24,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 100 transitions, 286 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-29 00:56:24,981 INFO L241 Difference]: Finished difference. Result has 103 places, 53 transitions, 139 flow [2021-04-29 00:56:24,984 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=139, PETRI_PLACES=103, PETRI_TRANSITIONS=53} [2021-04-29 00:56:24,985 INFO L343 CegarLoopForPetriNet]: 104 programPoint places, -1 predicate places. [2021-04-29 00:56:24,985 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:56:24,986 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 53 transitions, 139 flow [2021-04-29 00:56:24,986 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 53 transitions, 139 flow [2021-04-29 00:56:24,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 53 transitions, 139 flow [2021-04-29 00:56:25,010 INFO L129 PetriNetUnfolder]: 45/203 cut-off events. [2021-04-29 00:56:25,010 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:56:25,012 INFO L84 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 203 events. 45/203 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1193 event pairs, 23 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 286. Up to 76 conditions per place. [2021-04-29 00:56:25,018 INFO L146 LiptonReduction]: Number of co-enabled transitions 1460 [2021-04-29 00:56:25,045 INFO L158 LiptonReduction]: Checked pairs total: 904 [2021-04-29 00:56:25,045 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:56:25,045 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 60 [2021-04-29 00:56:25,048 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 139 flow [2021-04-29 00:56:25,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:25,048 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:56:25,049 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:56:25,049 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:56:25,049 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:56:25,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:56:25,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1609389755, now seen corresponding path program 1 times [2021-04-29 00:56:25,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:56:25,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362567026] [2021-04-29 00:56:25,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:56:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:56:25,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:25,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:25,150 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:56:25,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:56:25,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:56:25,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362567026] [2021-04-29 00:56:25,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:56:25,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:56:25,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652101710] [2021-04-29 00:56:25,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:56:25,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:56:25,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:56:25,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:56:25,171 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 232 [2021-04-29 00:56:25,173 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 139 flow. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:25,173 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:56:25,173 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 232 [2021-04-29 00:56:25,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:56:25,212 INFO L129 PetriNetUnfolder]: 29/140 cut-off events. [2021-04-29 00:56:25,212 INFO L130 PetriNetUnfolder]: For 22/142 co-relation queries the response was YES. [2021-04-29 00:56:25,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 140 events. 29/140 cut-off events. For 22/142 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 716 event pairs, 1 based on Foata normal form. 1/89 useless extension candidates. Maximal degree in co-relation 252. Up to 53 conditions per place. [2021-04-29 00:56:25,216 INFO L132 encePairwiseOnDemand]: 229/232 looper letters, 10 selfloop transitions, 3 changer transitions 0/56 dead transitions. [2021-04-29 00:56:25,217 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 56 transitions, 177 flow [2021-04-29 00:56:25,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:56:25,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:56:25,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions. [2021-04-29 00:56:25,221 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6221264367816092 [2021-04-29 00:56:25,221 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 433 transitions. [2021-04-29 00:56:25,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 433 transitions. [2021-04-29 00:56:25,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:56:25,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 433 transitions. [2021-04-29 00:56:25,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:25,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:25,227 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:25,227 INFO L185 Difference]: Start difference. First operand has 61 places, 53 transitions, 139 flow. Second operand 3 states and 433 transitions. [2021-04-29 00:56:25,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 56 transitions, 177 flow [2021-04-29 00:56:25,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 56 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:56:25,230 INFO L241 Difference]: Finished difference. Result has 63 places, 53 transitions, 145 flow [2021-04-29 00:56:25,230 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=63, PETRI_TRANSITIONS=53} [2021-04-29 00:56:25,231 INFO L343 CegarLoopForPetriNet]: 104 programPoint places, -41 predicate places. [2021-04-29 00:56:25,231 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:56:25,231 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 53 transitions, 145 flow [2021-04-29 00:56:25,232 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 53 transitions, 145 flow [2021-04-29 00:56:25,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 53 transitions, 145 flow [2021-04-29 00:56:25,251 INFO L129 PetriNetUnfolder]: 29/156 cut-off events. [2021-04-29 00:56:25,252 INFO L130 PetriNetUnfolder]: For 13/20 co-relation queries the response was YES. [2021-04-29 00:56:25,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 156 events. 29/156 cut-off events. For 13/20 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 827 event pairs, 11 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 236. Up to 53 conditions per place. [2021-04-29 00:56:25,257 INFO L146 LiptonReduction]: Number of co-enabled transitions 1458 [2021-04-29 00:56:25,272 INFO L158 LiptonReduction]: Checked pairs total: 904 [2021-04-29 00:56:25,273 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:56:25,273 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-04-29 00:56:25,275 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 53 transitions, 145 flow [2021-04-29 00:56:25,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:25,276 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:56:25,276 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:56:25,277 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:56:25,277 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:56:25,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:56:25,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1005220594, now seen corresponding path program 1 times [2021-04-29 00:56:25,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:56:25,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834891566] [2021-04-29 00:56:25,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:56:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:56:25,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:25,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:25,395 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:56:25,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:56:25,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:56:25,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834891566] [2021-04-29 00:56:25,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:56:25,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:56:25,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832301116] [2021-04-29 00:56:25,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:56:25,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:56:25,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:56:25,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:56:25,416 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 232 [2021-04-29 00:56:25,418 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 53 transitions, 145 flow. Second operand has 4 states, 4 states have (on average 132.75) internal successors, (531), 4 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:25,418 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:56:25,418 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 232 [2021-04-29 00:56:25,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:56:25,499 INFO L129 PetriNetUnfolder]: 52/229 cut-off events. [2021-04-29 00:56:25,500 INFO L130 PetriNetUnfolder]: For 79/159 co-relation queries the response was YES. [2021-04-29 00:56:25,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 229 events. 52/229 cut-off events. For 79/159 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1426 event pairs, 3 based on Foata normal form. 21/172 useless extension candidates. Maximal degree in co-relation 446. Up to 82 conditions per place. [2021-04-29 00:56:25,504 INFO L132 encePairwiseOnDemand]: 225/232 looper letters, 9 selfloop transitions, 12 changer transitions 0/63 dead transitions. [2021-04-29 00:56:25,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 63 transitions, 230 flow [2021-04-29 00:56:25,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:56:25,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:56:25,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 680 transitions. [2021-04-29 00:56:25,509 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5862068965517241 [2021-04-29 00:56:25,509 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 680 transitions. [2021-04-29 00:56:25,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 680 transitions. [2021-04-29 00:56:25,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:56:25,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 680 transitions. [2021-04-29 00:56:25,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:25,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:25,520 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:25,520 INFO L185 Difference]: Start difference. First operand has 63 places, 53 transitions, 145 flow. Second operand 5 states and 680 transitions. [2021-04-29 00:56:25,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 63 transitions, 230 flow [2021-04-29 00:56:25,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 63 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:56:25,525 INFO L241 Difference]: Finished difference. Result has 68 places, 60 transitions, 226 flow [2021-04-29 00:56:25,525 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=226, PETRI_PLACES=68, PETRI_TRANSITIONS=60} [2021-04-29 00:56:25,526 INFO L343 CegarLoopForPetriNet]: 104 programPoint places, -36 predicate places. [2021-04-29 00:56:25,526 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:56:25,526 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 60 transitions, 226 flow [2021-04-29 00:56:25,527 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 60 transitions, 226 flow [2021-04-29 00:56:25,527 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 60 transitions, 226 flow [2021-04-29 00:56:25,557 INFO L129 PetriNetUnfolder]: 35/202 cut-off events. [2021-04-29 00:56:25,557 INFO L130 PetriNetUnfolder]: For 97/171 co-relation queries the response was YES. [2021-04-29 00:56:25,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 202 events. 35/202 cut-off events. For 97/171 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1337 event pairs, 7 based on Foata normal form. 4/129 useless extension candidates. Maximal degree in co-relation 429. Up to 67 conditions per place. [2021-04-29 00:56:25,567 INFO L146 LiptonReduction]: Number of co-enabled transitions 1788 [2021-04-29 00:56:25,592 INFO L158 LiptonReduction]: Checked pairs total: 797 [2021-04-29 00:56:25,593 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:56:25,593 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 67 [2021-04-29 00:56:25,595 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 60 transitions, 226 flow [2021-04-29 00:56:25,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 132.75) internal successors, (531), 4 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:25,596 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:56:25,597 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:56:25,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:56:25,597 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:56:25,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:56:25,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1097039684, now seen corresponding path program 1 times [2021-04-29 00:56:25,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:56:25,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755221119] [2021-04-29 00:56:25,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:56:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:56:25,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:25,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:25,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:25,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:25,695 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:56:25,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:56:25,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:56:25,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755221119] [2021-04-29 00:56:25,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:56:25,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:56:25,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625000011] [2021-04-29 00:56:25,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:56:25,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:56:25,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:56:25,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:56:25,726 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 232 [2021-04-29 00:56:25,727 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 60 transitions, 226 flow. Second operand has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:25,728 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:56:25,728 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 232 [2021-04-29 00:56:25,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:56:25,823 INFO L129 PetriNetUnfolder]: 39/225 cut-off events. [2021-04-29 00:56:25,823 INFO L130 PetriNetUnfolder]: For 248/402 co-relation queries the response was YES. [2021-04-29 00:56:25,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 225 events. 39/225 cut-off events. For 248/402 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1500 event pairs, 2 based on Foata normal form. 16/155 useless extension candidates. Maximal degree in co-relation 545. Up to 70 conditions per place. [2021-04-29 00:56:25,829 INFO L132 encePairwiseOnDemand]: 228/232 looper letters, 11 selfloop transitions, 3 changer transitions 8/64 dead transitions. [2021-04-29 00:56:25,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 64 transitions, 302 flow [2021-04-29 00:56:25,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:56:25,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:56:25,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 542 transitions. [2021-04-29 00:56:25,833 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.584051724137931 [2021-04-29 00:56:25,833 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 542 transitions. [2021-04-29 00:56:25,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 542 transitions. [2021-04-29 00:56:25,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:56:25,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 542 transitions. [2021-04-29 00:56:25,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 135.5) internal successors, (542), 4 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:25,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 232.0) internal successors, (1160), 5 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:25,842 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 232.0) internal successors, (1160), 5 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:25,842 INFO L185 Difference]: Start difference. First operand has 68 places, 60 transitions, 226 flow. Second operand 4 states and 542 transitions. [2021-04-29 00:56:25,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 64 transitions, 302 flow [2021-04-29 00:56:25,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 64 transitions, 294 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-04-29 00:56:25,853 INFO L241 Difference]: Finished difference. Result has 72 places, 52 transitions, 180 flow [2021-04-29 00:56:25,854 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=72, PETRI_TRANSITIONS=52} [2021-04-29 00:56:25,854 INFO L343 CegarLoopForPetriNet]: 104 programPoint places, -32 predicate places. [2021-04-29 00:56:25,854 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:56:25,854 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 52 transitions, 180 flow [2021-04-29 00:56:25,855 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 52 transitions, 180 flow [2021-04-29 00:56:25,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 52 transitions, 180 flow [2021-04-29 00:56:25,875 INFO L129 PetriNetUnfolder]: 13/100 cut-off events. [2021-04-29 00:56:25,876 INFO L130 PetriNetUnfolder]: For 69/81 co-relation queries the response was YES. [2021-04-29 00:56:25,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 100 events. 13/100 cut-off events. For 69/81 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 482 event pairs, 3 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 214. Up to 29 conditions per place. [2021-04-29 00:56:25,881 INFO L146 LiptonReduction]: Number of co-enabled transitions 1396 [2021-04-29 00:56:25,897 INFO L158 LiptonReduction]: Checked pairs total: 675 [2021-04-29 00:56:25,897 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:56:25,898 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-04-29 00:56:25,901 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 52 transitions, 180 flow [2021-04-29 00:56:25,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:25,902 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:56:25,908 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:56:25,909 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:56:25,909 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:56:25,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:56:25,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1330743780, now seen corresponding path program 1 times [2021-04-29 00:56:25,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:56:25,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166405702] [2021-04-29 00:56:25,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:56:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:56:26,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:26,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:26,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:26,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:26,050 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:56:26,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:56:26,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:56:26,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166405702] [2021-04-29 00:56:26,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:56:26,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:56:26,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186947841] [2021-04-29 00:56:26,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:56:26,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:56:26,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:56:26,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:56:26,075 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 232 [2021-04-29 00:56:26,077 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 52 transitions, 180 flow. Second operand has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:26,077 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:56:26,078 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 232 [2021-04-29 00:56:26,078 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:56:26,134 INFO L129 PetriNetUnfolder]: 17/130 cut-off events. [2021-04-29 00:56:26,135 INFO L130 PetriNetUnfolder]: For 197/224 co-relation queries the response was YES. [2021-04-29 00:56:26,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 130 events. 17/130 cut-off events. For 197/224 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 691 event pairs, 2 based on Foata normal form. 7/85 useless extension candidates. Maximal degree in co-relation 308. Up to 35 conditions per place. [2021-04-29 00:56:26,137 INFO L132 encePairwiseOnDemand]: 228/232 looper letters, 8 selfloop transitions, 3 changer transitions 5/57 dead transitions. [2021-04-29 00:56:26,137 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 57 transitions, 252 flow [2021-04-29 00:56:26,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:56:26,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:56:26,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 538 transitions. [2021-04-29 00:56:26,141 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5797413793103449 [2021-04-29 00:56:26,141 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 538 transitions. [2021-04-29 00:56:26,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 538 transitions. [2021-04-29 00:56:26,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:56:26,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 538 transitions. [2021-04-29 00:56:26,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.5) internal successors, (538), 4 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:26,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 232.0) internal successors, (1160), 5 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:26,150 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 232.0) internal successors, (1160), 5 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:26,151 INFO L185 Difference]: Start difference. First operand has 71 places, 52 transitions, 180 flow. Second operand 4 states and 538 transitions. [2021-04-29 00:56:26,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 57 transitions, 252 flow [2021-04-29 00:56:26,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 57 transitions, 190 flow, removed 17 selfloop flow, removed 9 redundant places. [2021-04-29 00:56:26,155 INFO L241 Difference]: Finished difference. Result has 67 places, 50 transitions, 144 flow [2021-04-29 00:56:26,155 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=67, PETRI_TRANSITIONS=50} [2021-04-29 00:56:26,156 INFO L343 CegarLoopForPetriNet]: 104 programPoint places, -37 predicate places. [2021-04-29 00:56:26,156 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:56:26,156 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 50 transitions, 144 flow [2021-04-29 00:56:26,157 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 50 transitions, 144 flow [2021-04-29 00:56:26,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 50 transitions, 144 flow [2021-04-29 00:56:26,168 INFO L129 PetriNetUnfolder]: 4/72 cut-off events. [2021-04-29 00:56:26,169 INFO L130 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2021-04-29 00:56:26,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 72 events. 4/72 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 261 event pairs, 3 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 104. Up to 14 conditions per place. [2021-04-29 00:56:26,172 INFO L146 LiptonReduction]: Number of co-enabled transitions 1238 [2021-04-29 00:56:26,177 INFO L158 LiptonReduction]: Checked pairs total: 511 [2021-04-29 00:56:26,178 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:56:26,178 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-04-29 00:56:26,180 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 50 transitions, 144 flow [2021-04-29 00:56:26,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:26,182 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:56:26,182 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:56:26,182 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:56:26,182 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:56:26,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:56:26,183 INFO L82 PathProgramCache]: Analyzing trace with hash -644799539, now seen corresponding path program 1 times [2021-04-29 00:56:26,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:56:26,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032696360] [2021-04-29 00:56:26,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:56:26,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:56:26,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:26,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:26,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:26,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:26,250 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:56:26,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:56:26,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:56:26,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032696360] [2021-04-29 00:56:26,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:56:26,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:56:26,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114387786] [2021-04-29 00:56:26,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:56:26,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:56:26,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:56:26,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:56:26,269 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 232 [2021-04-29 00:56:26,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 50 transitions, 144 flow. Second operand has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:26,271 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:56:26,271 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 232 [2021-04-29 00:56:26,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:56:26,317 INFO L129 PetriNetUnfolder]: 5/95 cut-off events. [2021-04-29 00:56:26,317 INFO L130 PetriNetUnfolder]: For 50/58 co-relation queries the response was YES. [2021-04-29 00:56:26,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 95 events. 5/95 cut-off events. For 50/58 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 458 event pairs, 0 based on Foata normal form. 4/58 useless extension candidates. Maximal degree in co-relation 159. Up to 17 conditions per place. [2021-04-29 00:56:26,318 INFO L132 encePairwiseOnDemand]: 228/232 looper letters, 4 selfloop transitions, 3 changer transitions 25/55 dead transitions. [2021-04-29 00:56:26,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 55 transitions, 202 flow [2021-04-29 00:56:26,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:56:26,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:56:26,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 538 transitions. [2021-04-29 00:56:26,323 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5797413793103449 [2021-04-29 00:56:26,323 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 538 transitions. [2021-04-29 00:56:26,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 538 transitions. [2021-04-29 00:56:26,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:56:26,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 538 transitions. [2021-04-29 00:56:26,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.5) internal successors, (538), 4 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:26,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 232.0) internal successors, (1160), 5 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:26,330 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 232.0) internal successors, (1160), 5 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:26,330 INFO L185 Difference]: Start difference. First operand has 66 places, 50 transitions, 144 flow. Second operand 4 states and 538 transitions. [2021-04-29 00:56:26,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 55 transitions, 202 flow [2021-04-29 00:56:26,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 55 transitions, 186 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-04-29 00:56:26,334 INFO L241 Difference]: Finished difference. Result has 67 places, 30 transitions, 102 flow [2021-04-29 00:56:26,334 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=102, PETRI_PLACES=67, PETRI_TRANSITIONS=30} [2021-04-29 00:56:26,335 INFO L343 CegarLoopForPetriNet]: 104 programPoint places, -37 predicate places. [2021-04-29 00:56:26,335 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:56:26,335 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 30 transitions, 102 flow [2021-04-29 00:56:26,336 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 30 transitions, 102 flow [2021-04-29 00:56:26,336 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 30 transitions, 102 flow [2021-04-29 00:56:26,342 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-04-29 00:56:26,343 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-04-29 00:56:26,343 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 30 events. 0/30 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 45 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-04-29 00:56:26,344 INFO L146 LiptonReduction]: Number of co-enabled transitions 366 [2021-04-29 00:56:26,583 INFO L158 LiptonReduction]: Checked pairs total: 277 [2021-04-29 00:56:26,584 INFO L160 LiptonReduction]: Total number of compositions: 3 [2021-04-29 00:56:26,584 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 249 [2021-04-29 00:56:26,587 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 30 transitions, 102 flow [2021-04-29 00:56:26,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:26,588 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:56:26,588 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:56:26,588 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:56:26,588 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:56:26,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:56:26,589 INFO L82 PathProgramCache]: Analyzing trace with hash 259450575, now seen corresponding path program 1 times [2021-04-29 00:56:26,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:56:26,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974596450] [2021-04-29 00:56:26,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:56:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:56:26,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:26,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:26,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:26,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:26,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:56:26,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974596450] [2021-04-29 00:56:26,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:56:26,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:56:26,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998314262] [2021-04-29 00:56:26,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:56:26,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:56:26,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:56:26,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:56:26,654 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 235 [2021-04-29 00:56:26,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 30 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:26,656 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:56:26,656 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 235 [2021-04-29 00:56:26,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:56:26,680 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2021-04-29 00:56:26,680 INFO L130 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2021-04-29 00:56:26,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 29 events. 0/29 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 5/25 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-04-29 00:56:26,681 INFO L132 encePairwiseOnDemand]: 229/235 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2021-04-29 00:56:26,681 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 29 transitions, 104 flow [2021-04-29 00:56:26,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:56:26,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:56:26,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 608 transitions. [2021-04-29 00:56:26,685 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6468085106382979 [2021-04-29 00:56:26,685 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 608 transitions. [2021-04-29 00:56:26,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 608 transitions. [2021-04-29 00:56:26,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:56:26,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 608 transitions. [2021-04-29 00:56:26,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:26,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 235.0) internal successors, (1175), 5 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:26,692 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 235.0) internal successors, (1175), 5 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:26,693 INFO L185 Difference]: Start difference. First operand has 49 places, 30 transitions, 102 flow. Second operand 4 states and 608 transitions. [2021-04-29 00:56:26,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 29 transitions, 104 flow [2021-04-29 00:56:26,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 29 transitions, 84 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-04-29 00:56:26,695 INFO L241 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2021-04-29 00:56:26,695 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2021-04-29 00:56:26,695 INFO L343 CegarLoopForPetriNet]: 104 programPoint places, -60 predicate places. [2021-04-29 00:56:26,695 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:56:26,696 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 0 transitions, 0 flow [2021-04-29 00:56:26,696 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 0 transitions, 0 flow [2021-04-29 00:56:26,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:56:26,696 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:56:26,696 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:56:26,697 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 00:56:26,697 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:56:26,697 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:56:26,697 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:56:26,698 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-04-29 00:56:26,699 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:56:26,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:26,700 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:56:26,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:56:26 BasicIcfg [2021-04-29 00:56:26,707 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:56:26,709 INFO L168 Benchmark]: Toolchain (without parser) took 27289.31 ms. Allocated memory was 302.0 MB in the beginning and 528.5 MB in the end (delta: 226.5 MB). Free memory was 276.1 MB in the beginning and 468.9 MB in the end (delta: -192.8 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.0 GB. [2021-04-29 00:56:26,709 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 271.7 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:56:26,710 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1010.44 ms. Allocated memory is still 302.0 MB. Free memory was 272.9 MB in the beginning and 267.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.0 GB. [2021-04-29 00:56:26,710 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.03 ms. Allocated memory is still 302.0 MB. Free memory was 267.8 MB in the beginning and 266.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:56:26,711 INFO L168 Benchmark]: Boogie Preprocessor took 36.32 ms. Allocated memory is still 302.0 MB. Free memory was 266.1 MB in the beginning and 264.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:56:26,711 INFO L168 Benchmark]: RCFGBuilder took 927.68 ms. Allocated memory is still 302.0 MB. Free memory was 264.0 MB in the beginning and 238.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-04-29 00:56:26,712 INFO L168 Benchmark]: TraceAbstraction took 25191.68 ms. Allocated memory was 302.0 MB in the beginning and 528.5 MB in the end (delta: 226.5 MB). Free memory was 237.8 MB in the beginning and 468.9 MB in the end (delta: -231.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:56:26,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 271.7 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1010.44 ms. Allocated memory is still 302.0 MB. Free memory was 272.9 MB in the beginning and 267.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 66.03 ms. Allocated memory is still 302.0 MB. Free memory was 267.8 MB in the beginning and 266.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 36.32 ms. Allocated memory is still 302.0 MB. Free memory was 266.1 MB in the beginning and 264.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 927.68 ms. Allocated memory is still 302.0 MB. Free memory was 264.0 MB in the beginning and 238.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 25191.68 ms. Allocated memory was 302.0 MB in the beginning and 528.5 MB in the end (delta: 226.5 MB). Free memory was 237.8 MB in the beginning and 468.9 MB in the end (delta: -231.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22125.6ms, 85 PlacesBefore, 104 PlacesAfterwards, 73 TransitionsBefore, 91 TransitionsAfterwards, 1392 CoEnabledTransitionPairs, 8 FixpointIterations, 91 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 141 TotalNumberOfCompositions, 12552 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4340, positive: 4036, positive conditional: 4036, positive unconditional: 0, negative: 304, negative conditional: 304, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1446, positive: 1369, positive conditional: 0, positive unconditional: 1369, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1446, positive: 1369, positive conditional: 0, positive unconditional: 1369, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1446, positive: 1325, positive conditional: 0, positive unconditional: 1325, negative: 121, negative conditional: 0, negative unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 121, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 812, positive: 282, positive conditional: 0, positive unconditional: 282, negative: 530, negative conditional: 0, negative unconditional: 530, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4340, positive: 2667, positive conditional: 2667, positive unconditional: 0, negative: 227, negative conditional: 227, negative unconditional: 0, unknown: 1446, unknown conditional: 1446, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1440, Positive cache size: 1363, Positive conditional cache size: 1363, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 59.3ms, 103 PlacesBefore, 61 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 1460 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 904 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 286, positive: 261, positive conditional: 261, positive unconditional: 0, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 26, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 26, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 286, positive: 239, positive conditional: 239, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1466, Positive cache size: 1385, Positive conditional cache size: 1385, Positive unconditional cache size: 0, Negative cache size: 81, Negative conditional cache size: 81, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.1ms, 63 PlacesBefore, 63 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 1458 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 904 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 286, positive: 261, positive conditional: 261, positive unconditional: 0, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 286, positive: 245, positive conditional: 245, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1483, Positive cache size: 1401, Positive conditional cache size: 1401, Positive unconditional cache size: 0, Negative cache size: 82, Negative conditional cache size: 82, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 65.8ms, 68 PlacesBefore, 68 PlacesAfterwards, 60 TransitionsBefore, 60 TransitionsAfterwards, 1788 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 797 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 154, positive: 135, positive conditional: 135, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35, positive: 32, positive conditional: 21, positive unconditional: 11, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 35, positive: 32, positive conditional: 21, positive unconditional: 11, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 35, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 15, negative conditional: 6, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 154, positive: 103, positive conditional: 103, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 35, unknown conditional: 35, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1518, Positive cache size: 1433, Positive conditional cache size: 1433, Positive unconditional cache size: 0, Negative cache size: 85, Negative conditional cache size: 85, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.0ms, 72 PlacesBefore, 71 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 1396 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 675 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 166, positive: 147, positive conditional: 147, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 166, positive: 136, positive conditional: 136, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1530, Positive cache size: 1444, Positive conditional cache size: 1444, Positive unconditional cache size: 0, Negative cache size: 86, Negative conditional cache size: 86, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.9ms, 67 PlacesBefore, 66 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 1238 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 511 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 173, positive: 157, positive conditional: 157, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 10, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 10, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 173, positive: 146, positive conditional: 146, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1541, Positive cache size: 1455, Positive conditional cache size: 1455, Positive unconditional cache size: 0, Negative cache size: 86, Negative conditional cache size: 86, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 247.9ms, 67 PlacesBefore, 49 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 366 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 277 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 150, positive: 136, positive conditional: 136, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 41, positive: 36, positive conditional: 6, positive unconditional: 30, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 41, positive: 36, positive conditional: 6, positive unconditional: 30, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 41, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 24, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 110, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 150, positive: 100, positive conditional: 100, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 41, unknown conditional: 41, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1582, Positive cache size: 1491, Positive conditional cache size: 1491, Positive unconditional cache size: 0, Negative cache size: 91, Negative conditional cache size: 91, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4ms, 44 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1582, Positive cache size: 1491, Positive conditional cache size: 1491, Positive unconditional cache size: 0, Negative cache size: 91, Negative conditional cache size: 91, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 16.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 24960.5ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 895.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 22274.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 61 SDtfs, 48 SDslu, 24 SDs, 0 SdLazy, 64 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 181.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 172.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=3, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 33.2ms SsaConstructionTime, 309.5ms SatisfiabilityAnalysisTime, 654.0ms InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 596 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...