/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 15:01:52,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 15:01:52,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 15:01:52,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 15:01:52,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 15:01:52,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 15:01:52,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 15:01:52,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 15:01:52,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 15:01:52,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 15:01:52,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 15:01:52,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 15:01:52,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 15:01:52,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 15:01:52,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 15:01:52,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 15:01:52,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 15:01:52,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 15:01:52,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 15:01:52,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 15:01:52,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 15:01:52,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 15:01:52,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 15:01:52,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 15:01:52,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 15:01:52,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 15:01:52,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 15:01:52,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 15:01:52,516 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-RepeatedSemanticLbe.epf [2021-03-25 15:01:52,535 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 15:01:52,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 15:01:52,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 15:01:52,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 15:01:52,537 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 15:01:52,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 15:01:52,537 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 15:01:52,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 15:01:52,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 15:01:52,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 15:01:52,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 15:01:52,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 15:01:52,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 15:01:52,538 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 15:01:52,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 15:01:52,539 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 15:01:52,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 15:01:52,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 15:01:52,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 15:01:52,539 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 15:01:52,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 15:01:52,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 15:01:52,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 15:01:52,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 15:01:52,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 15:01:52,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 15:01:52,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 15:01:52,540 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 15:01:52,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 15:01:52,541 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 15:01:52,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 15:01:52,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 15:01:52,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 15:01:52,832 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 15:01:52,832 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 15:01:52,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_pso.opt.i [2021-03-25 15:01:52,898 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eddb2eeab/c40ad0b210f944d8bfde4177c5f57a78/FLAGb581bb6fa [2021-03-25 15:01:53,450 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 15:01:53,451 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_pso.opt.i [2021-03-25 15:01:53,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eddb2eeab/c40ad0b210f944d8bfde4177c5f57a78/FLAGb581bb6fa [2021-03-25 15:01:53,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eddb2eeab/c40ad0b210f944d8bfde4177c5f57a78 [2021-03-25 15:01:53,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 15:01:53,892 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 15:01:53,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 15:01:53,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 15:01:53,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 15:01:53,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 03:01:53" (1/1) ... [2021-03-25 15:01:53,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52bbcbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:01:53, skipping insertion in model container [2021-03-25 15:01:53,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 03:01:53" (1/1) ... [2021-03-25 15:01:53,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 15:01:53,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 15:01:54,090 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/safe030_pso.opt.i[949,962] [2021-03-25 15:01:54,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 15:01:54,318 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 15:01:54,330 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/safe030_pso.opt.i[949,962] [2021-03-25 15:01:54,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 15:01:54,475 INFO L208 MainTranslator]: Completed translation [2021-03-25 15:01:54,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:01:54 WrapperNode [2021-03-25 15:01:54,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 15:01:54,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 15:01:54,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 15:01:54,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 15:01:54,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:01:54" (1/1) ... [2021-03-25 15:01:54,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:01:54" (1/1) ... [2021-03-25 15:01:54,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 15:01:54,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 15:01:54,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 15:01:54,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 15:01:54,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:01:54" (1/1) ... [2021-03-25 15:01:54,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:01:54" (1/1) ... [2021-03-25 15:01:54,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:01:54" (1/1) ... [2021-03-25 15:01:54,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:01:54" (1/1) ... [2021-03-25 15:01:54,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:01:54" (1/1) ... [2021-03-25 15:01:54,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:01:54" (1/1) ... [2021-03-25 15:01:54,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:01:54" (1/1) ... [2021-03-25 15:01:54,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 15:01:54,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 15:01:54,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 15:01:54,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 15:01:54,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:01:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 15:01:54,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 15:01:54,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 15:01:54,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 15:01:54,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 15:01:54,689 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 15:01:54,690 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 15:01:54,690 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 15:01:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 15:01:54,691 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 15:01:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 15:01:54,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 15:01:54,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 15:01:54,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 15:01:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 15:01:54,693 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 15:01:56,464 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 15:01:56,464 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 15:01:56,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 03:01:56 BoogieIcfgContainer [2021-03-25 15:01:56,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 15:01:56,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 15:01:56,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 15:01:56,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 15:01:56,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 03:01:53" (1/3) ... [2021-03-25 15:01:56,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec7f8ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 03:01:56, skipping insertion in model container [2021-03-25 15:01:56,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:01:54" (2/3) ... [2021-03-25 15:01:56,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec7f8ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 03:01:56, skipping insertion in model container [2021-03-25 15:01:56,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 03:01:56" (3/3) ... [2021-03-25 15:01:56,474 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_pso.opt.i [2021-03-25 15:01:56,480 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 15:01:56,483 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 15:01:56,484 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 15:01:56,515 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,515 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,515 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,515 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,516 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,516 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,517 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,517 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,517 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,517 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,517 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,517 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,518 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,518 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,520 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,520 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,520 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,520 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,520 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,521 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,521 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,521 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,521 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,521 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,521 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,522 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,522 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,522 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,522 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,522 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,522 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,522 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,523 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,523 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,523 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,523 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,523 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,523 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,524 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,524 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,524 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,524 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,524 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,524 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,524 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,525 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,525 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,525 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,525 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,525 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,525 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,525 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,526 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,526 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,526 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,526 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,528 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,528 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,530 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,531 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,537 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,537 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,537 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,537 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,537 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,538 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,538 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,539 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,539 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,539 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,539 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,540 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:01:56,541 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 15:01:56,559 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-25 15:01:56,580 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 15:01:56,580 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 15:01:56,581 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 15:01:56,581 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 15:01:56,581 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 15:01:56,581 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 15:01:56,581 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 15:01:56,581 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 15:01:56,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2021-03-25 15:01:56,650 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-25 15:01:56,650 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:01:56,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-03-25 15:01:56,653 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 95 transitions, 205 flow [2021-03-25 15:01:56,657 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 92 transitions, 193 flow [2021-03-25 15:01:56,658 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:01:56,669 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-25 15:01:56,674 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-25 15:01:56,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 193 flow [2021-03-25 15:01:56,704 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-25 15:01:56,705 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:01:56,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-03-25 15:01:56,708 INFO L142 LiptonReduction]: Number of co-enabled transitions 1578 [2021-03-25 15:01:58,007 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 15:01:58,396 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-25 15:01:58,551 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-25 15:01:59,511 WARN L205 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 185 [2021-03-25 15:01:59,838 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-03-25 15:02:01,223 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 310 DAG size of output: 266 [2021-03-25 15:02:01,814 WARN L205 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2021-03-25 15:02:02,762 INFO L154 LiptonReduction]: Checked pairs total: 2818 [2021-03-25 15:02:02,762 INFO L156 LiptonReduction]: Total number of compositions: 62 [2021-03-25 15:02:02,764 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6107 [2021-03-25 15:02:02,773 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-03-25 15:02:02,773 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:02:02,773 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:02:02,774 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:02:02,774 INFO L428 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:02:02,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:02:02,778 INFO L82 PathProgramCache]: Analyzing trace with hash 903762281, now seen corresponding path program 1 times [2021-03-25 15:02:02,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:02:02,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635699403] [2021-03-25 15:02:02,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:02:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:02:03,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:03,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:02:03,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:03,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:02:03,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:02:03,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635699403] [2021-03-25 15:02:03,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:02:03,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 15:02:03,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460040493] [2021-03-25 15:02:03,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 15:02:03,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:02:03,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 15:02:03,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 15:02:03,033 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 157 [2021-03-25 15:02:03,036 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:03,036 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:02:03,036 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 157 [2021-03-25 15:02:03,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:02:03,098 INFO L129 PetriNetUnfolder]: 16/90 cut-off events. [2021-03-25 15:02:03,099 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:02:03,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 90 events. 16/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 281 event pairs, 6 based on Foata normal form. 5/88 useless extension candidates. Maximal degree in co-relation 117. Up to 27 conditions per place. [2021-03-25 15:02:03,102 INFO L132 encePairwiseOnDemand]: 153/157 looper letters, 7 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2021-03-25 15:02:03,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 37 transitions, 101 flow [2021-03-25 15:02:03,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 15:02:03,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 15:02:03,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 426 transitions. [2021-03-25 15:02:03,120 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9044585987261147 [2021-03-25 15:02:03,120 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 426 transitions. [2021-03-25 15:02:03,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 426 transitions. [2021-03-25 15:02:03,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:02:03,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 426 transitions. [2021-03-25 15:02:03,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:03,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:03,142 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:03,143 INFO L185 Difference]: Start difference. First operand has 46 places, 37 transitions, 83 flow. Second operand 3 states and 426 transitions. [2021-03-25 15:02:03,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 37 transitions, 101 flow [2021-03-25 15:02:03,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 37 transitions, 98 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 15:02:03,148 INFO L241 Difference]: Finished difference. Result has 43 places, 34 transitions, 78 flow [2021-03-25 15:02:03,149 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2021-03-25 15:02:03,150 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2021-03-25 15:02:03,151 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:02:03,151 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 34 transitions, 78 flow [2021-03-25 15:02:03,152 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 34 transitions, 78 flow [2021-03-25 15:02:03,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 34 transitions, 78 flow [2021-03-25 15:02:03,157 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2021-03-25 15:02:03,157 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:02:03,158 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 34 events. 0/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 15:02:03,158 INFO L142 LiptonReduction]: Number of co-enabled transitions 318 [2021-03-25 15:02:03,507 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-25 15:02:03,656 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-25 15:02:04,063 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-25 15:02:04,358 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-25 15:02:05,042 WARN L205 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-03-25 15:02:05,669 WARN L205 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-03-25 15:02:06,190 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-03-25 15:02:06,524 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-03-25 15:02:07,223 WARN L205 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2021-03-25 15:02:07,918 WARN L205 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2021-03-25 15:02:08,627 INFO L154 LiptonReduction]: Checked pairs total: 863 [2021-03-25 15:02:08,628 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-25 15:02:08,628 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5478 [2021-03-25 15:02:08,629 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 58 flow [2021-03-25 15:02:08,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:08,629 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:02:08,629 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:02:08,630 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 15:02:08,630 INFO L428 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:02:08,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:02:08,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1787014718, now seen corresponding path program 1 times [2021-03-25 15:02:08,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:02:08,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433883647] [2021-03-25 15:02:08,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:02:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:02:08,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:08,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:02:08,780 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-25 15:02:08,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 15:02:08,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:02:08,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433883647] [2021-03-25 15:02:08,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:02:08,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 15:02:08,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317305059] [2021-03-25 15:02:08,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 15:02:08,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:02:08,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 15:02:08,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 15:02:08,788 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 168 [2021-03-25 15:02:08,788 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:08,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:02:08,789 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 168 [2021-03-25 15:02:08,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:02:08,840 INFO L129 PetriNetUnfolder]: 7/46 cut-off events. [2021-03-25 15:02:08,841 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:02:08,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 46 events. 7/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 111 event pairs, 1 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 64. Up to 10 conditions per place. [2021-03-25 15:02:08,842 INFO L132 encePairwiseOnDemand]: 163/168 looper letters, 3 selfloop transitions, 3 changer transitions 7/31 dead transitions. [2021-03-25 15:02:08,842 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 31 transitions, 96 flow [2021-03-25 15:02:08,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 15:02:08,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 15:02:08,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 728 transitions. [2021-03-25 15:02:08,844 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2021-03-25 15:02:08,844 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 728 transitions. [2021-03-25 15:02:08,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 728 transitions. [2021-03-25 15:02:08,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:02:08,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 728 transitions. [2021-03-25 15:02:08,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.6) internal successors, (728), 5 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:08,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:08,849 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:08,849 INFO L185 Difference]: Start difference. First operand has 33 places, 24 transitions, 58 flow. Second operand 5 states and 728 transitions. [2021-03-25 15:02:08,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 31 transitions, 96 flow [2021-03-25 15:02:08,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 31 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 15:02:08,850 INFO L241 Difference]: Finished difference. Result has 37 places, 24 transitions, 73 flow [2021-03-25 15:02:08,851 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=73, PETRI_PLACES=37, PETRI_TRANSITIONS=24} [2021-03-25 15:02:08,851 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -9 predicate places. [2021-03-25 15:02:08,851 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:02:08,851 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 24 transitions, 73 flow [2021-03-25 15:02:08,852 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 24 transitions, 73 flow [2021-03-25 15:02:08,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 24 transitions, 73 flow [2021-03-25 15:02:08,862 INFO L129 PetriNetUnfolder]: 3/30 cut-off events. [2021-03-25 15:02:08,862 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 15:02:08,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 30 events. 3/30 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 1 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 45. Up to 10 conditions per place. [2021-03-25 15:02:08,863 INFO L142 LiptonReduction]: Number of co-enabled transitions 212 [2021-03-25 15:02:09,661 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-25 15:02:09,805 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-25 15:02:10,075 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-25 15:02:10,200 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-25 15:02:10,244 INFO L154 LiptonReduction]: Checked pairs total: 594 [2021-03-25 15:02:10,245 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 15:02:10,245 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1394 [2021-03-25 15:02:10,246 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 69 flow [2021-03-25 15:02:10,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:10,246 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:02:10,246 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:02:10,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 15:02:10,247 INFO L428 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:02:10,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:02:10,247 INFO L82 PathProgramCache]: Analyzing trace with hash -498930536, now seen corresponding path program 1 times [2021-03-25 15:02:10,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:02:10,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781844285] [2021-03-25 15:02:10,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:02:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:02:10,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:10,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 15:02:10,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:10,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 15:02:10,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:10,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 15:02:10,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:02:10,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781844285] [2021-03-25 15:02:10,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:02:10,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 15:02:10,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800460632] [2021-03-25 15:02:10,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 15:02:10,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:02:10,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 15:02:10,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 15:02:10,410 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 170 [2021-03-25 15:02:10,411 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 69 flow. Second operand has 5 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:10,411 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:02:10,411 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 170 [2021-03-25 15:02:10,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:02:10,475 INFO L129 PetriNetUnfolder]: 55/133 cut-off events. [2021-03-25 15:02:10,476 INFO L130 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2021-03-25 15:02:10,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 133 events. 55/133 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 550 event pairs, 33 based on Foata normal form. 2/127 useless extension candidates. Maximal degree in co-relation 264. Up to 87 conditions per place. [2021-03-25 15:02:10,480 INFO L132 encePairwiseOnDemand]: 165/170 looper letters, 8 selfloop transitions, 5 changer transitions 0/28 dead transitions. [2021-03-25 15:02:10,480 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 28 transitions, 107 flow [2021-03-25 15:02:10,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 15:02:10,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 15:02:10,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 547 transitions. [2021-03-25 15:02:10,484 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8044117647058824 [2021-03-25 15:02:10,484 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 547 transitions. [2021-03-25 15:02:10,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 547 transitions. [2021-03-25 15:02:10,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:02:10,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 547 transitions. [2021-03-25 15:02:10,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 136.75) internal successors, (547), 4 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:10,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:10,487 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:10,487 INFO L185 Difference]: Start difference. First operand has 31 places, 22 transitions, 69 flow. Second operand 4 states and 547 transitions. [2021-03-25 15:02:10,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 28 transitions, 107 flow [2021-03-25 15:02:10,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 28 transitions, 100 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 15:02:10,490 INFO L241 Difference]: Finished difference. Result has 34 places, 26 transitions, 96 flow [2021-03-25 15:02:10,492 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2021-03-25 15:02:10,493 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -12 predicate places. [2021-03-25 15:02:10,493 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:02:10,493 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 26 transitions, 96 flow [2021-03-25 15:02:10,494 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 26 transitions, 96 flow [2021-03-25 15:02:10,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 26 transitions, 96 flow [2021-03-25 15:02:10,501 INFO L129 PetriNetUnfolder]: 8/47 cut-off events. [2021-03-25 15:02:10,501 INFO L130 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2021-03-25 15:02:10,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 47 events. 8/47 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 150 event pairs, 3 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 91. Up to 16 conditions per place. [2021-03-25 15:02:10,504 INFO L142 LiptonReduction]: Number of co-enabled transitions 244 [2021-03-25 15:02:10,533 INFO L154 LiptonReduction]: Checked pairs total: 161 [2021-03-25 15:02:10,533 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:02:10,533 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-03-25 15:02:10,536 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 96 flow [2021-03-25 15:02:10,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:10,537 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:02:10,537 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:02:10,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 15:02:10,537 INFO L428 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:02:10,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:02:10,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1282934265, now seen corresponding path program 1 times [2021-03-25 15:02:10,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:02:10,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180836144] [2021-03-25 15:02:10,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:02:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:02:10,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:10,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:02:10,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:02:10,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180836144] [2021-03-25 15:02:10,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:02:10,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 15:02:10,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592169516] [2021-03-25 15:02:10,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 15:02:10,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:02:10,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 15:02:10,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 15:02:10,624 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 170 [2021-03-25 15:02:10,629 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:10,629 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:02:10,629 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 170 [2021-03-25 15:02:10,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:02:10,654 INFO L129 PetriNetUnfolder]: 21/75 cut-off events. [2021-03-25 15:02:10,654 INFO L130 PetriNetUnfolder]: For 103/112 co-relation queries the response was YES. [2021-03-25 15:02:10,655 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 75 events. 21/75 cut-off events. For 103/112 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 295 event pairs, 8 based on Foata normal form. 2/72 useless extension candidates. Maximal degree in co-relation 180. Up to 27 conditions per place. [2021-03-25 15:02:10,656 INFO L132 encePairwiseOnDemand]: 166/170 looper letters, 3 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2021-03-25 15:02:10,656 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 28 transitions, 112 flow [2021-03-25 15:02:10,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 15:02:10,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 15:02:10,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 460 transitions. [2021-03-25 15:02:10,658 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9019607843137255 [2021-03-25 15:02:10,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 460 transitions. [2021-03-25 15:02:10,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 460 transitions. [2021-03-25 15:02:10,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:02:10,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 460 transitions. [2021-03-25 15:02:10,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:10,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 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) [2021-03-25 15:02:10,661 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 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) [2021-03-25 15:02:10,662 INFO L185 Difference]: Start difference. First operand has 34 places, 26 transitions, 96 flow. Second operand 3 states and 460 transitions. [2021-03-25 15:02:10,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 28 transitions, 112 flow [2021-03-25 15:02:10,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 28 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 15:02:10,664 INFO L241 Difference]: Finished difference. Result has 37 places, 28 transitions, 115 flow [2021-03-25 15:02:10,664 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2021-03-25 15:02:10,664 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -9 predicate places. [2021-03-25 15:02:10,664 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:02:10,665 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 28 transitions, 115 flow [2021-03-25 15:02:10,665 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 28 transitions, 115 flow [2021-03-25 15:02:10,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 28 transitions, 115 flow [2021-03-25 15:02:10,674 INFO L129 PetriNetUnfolder]: 13/66 cut-off events. [2021-03-25 15:02:10,674 INFO L130 PetriNetUnfolder]: For 58/63 co-relation queries the response was YES. [2021-03-25 15:02:10,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 66 events. 13/66 cut-off events. For 58/63 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 251 event pairs, 4 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 148. Up to 20 conditions per place. [2021-03-25 15:02:10,676 INFO L142 LiptonReduction]: Number of co-enabled transitions 262 [2021-03-25 15:02:10,678 INFO L154 LiptonReduction]: Checked pairs total: 104 [2021-03-25 15:02:10,678 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:02:10,678 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-25 15:02:10,682 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 115 flow [2021-03-25 15:02:10,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:10,683 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:02:10,683 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:02:10,683 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 15:02:10,683 INFO L428 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:02:10,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:02:10,683 INFO L82 PathProgramCache]: Analyzing trace with hash -2015686887, now seen corresponding path program 1 times [2021-03-25 15:02:10,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:02:10,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39548441] [2021-03-25 15:02:10,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:02:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:02:10,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:10,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 15:02:10,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:10,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 15:02:10,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:10,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 15:02:10,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:02:10,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39548441] [2021-03-25 15:02:10,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:02:10,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 15:02:10,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83569431] [2021-03-25 15:02:10,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 15:02:10,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:02:10,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 15:02:10,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 15:02:10,797 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 170 [2021-03-25 15:02:10,798 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 115 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) [2021-03-25 15:02:10,798 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:02:10,798 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 170 [2021-03-25 15:02:10,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:02:10,896 INFO L129 PetriNetUnfolder]: 65/165 cut-off events. [2021-03-25 15:02:10,896 INFO L130 PetriNetUnfolder]: For 207/209 co-relation queries the response was YES. [2021-03-25 15:02:10,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 165 events. 65/165 cut-off events. For 207/209 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 729 event pairs, 2 based on Foata normal form. 9/167 useless extension candidates. Maximal degree in co-relation 441. Up to 73 conditions per place. [2021-03-25 15:02:10,898 INFO L132 encePairwiseOnDemand]: 164/170 looper letters, 11 selfloop transitions, 9 changer transitions 0/37 dead transitions. [2021-03-25 15:02:10,898 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 37 transitions, 185 flow [2021-03-25 15:02:10,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 15:02:10,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 15:02:10,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 807 transitions. [2021-03-25 15:02:10,901 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7911764705882353 [2021-03-25 15:02:10,901 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 807 transitions. [2021-03-25 15:02:10,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 807 transitions. [2021-03-25 15:02:10,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:02:10,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 807 transitions. [2021-03-25 15:02:10,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 134.5) internal successors, (807), 6 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:10,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:10,907 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:10,907 INFO L185 Difference]: Start difference. First operand has 37 places, 28 transitions, 115 flow. Second operand 6 states and 807 transitions. [2021-03-25 15:02:10,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 37 transitions, 185 flow [2021-03-25 15:02:10,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 37 transitions, 182 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 15:02:10,910 INFO L241 Difference]: Finished difference. Result has 43 places, 32 transitions, 158 flow [2021-03-25 15:02:10,911 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=158, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2021-03-25 15:02:10,911 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2021-03-25 15:02:10,911 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:02:10,911 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 32 transitions, 158 flow [2021-03-25 15:02:10,911 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 32 transitions, 158 flow [2021-03-25 15:02:10,912 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 32 transitions, 158 flow [2021-03-25 15:02:10,923 INFO L129 PetriNetUnfolder]: 17/70 cut-off events. [2021-03-25 15:02:10,924 INFO L130 PetriNetUnfolder]: For 150/153 co-relation queries the response was YES. [2021-03-25 15:02:10,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 70 events. 17/70 cut-off events. For 150/153 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 237 event pairs, 5 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 203. Up to 23 conditions per place. [2021-03-25 15:02:10,925 INFO L142 LiptonReduction]: Number of co-enabled transitions 298 [2021-03-25 15:02:10,959 INFO L154 LiptonReduction]: Checked pairs total: 124 [2021-03-25 15:02:10,959 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:02:10,959 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-03-25 15:02:10,961 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 158 flow [2021-03-25 15:02:10,962 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) [2021-03-25 15:02:10,962 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:02:10,962 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:02:10,962 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 15:02:10,962 INFO L428 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:02:10,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:02:10,962 INFO L82 PathProgramCache]: Analyzing trace with hash -154280074, now seen corresponding path program 1 times [2021-03-25 15:02:10,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:02:10,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061976223] [2021-03-25 15:02:10,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:02:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:02:11,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:11,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 15:02:11,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:11,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 15:02:11,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:11,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 15:02:11,116 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-03-25 15:02:11,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 15:02:11,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:02:11,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061976223] [2021-03-25 15:02:11,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:02:11,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 15:02:11,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708478093] [2021-03-25 15:02:11,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 15:02:11,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:02:11,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 15:02:11,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-25 15:02:11,145 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 170 [2021-03-25 15:02:11,146 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 32 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,146 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:02:11,146 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 170 [2021-03-25 15:02:11,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:02:11,229 INFO L129 PetriNetUnfolder]: 65/163 cut-off events. [2021-03-25 15:02:11,229 INFO L130 PetriNetUnfolder]: For 335/337 co-relation queries the response was YES. [2021-03-25 15:02:11,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 163 events. 65/163 cut-off events. For 335/337 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 722 event pairs, 6 based on Foata normal form. 4/159 useless extension candidates. Maximal degree in co-relation 522. Up to 84 conditions per place. [2021-03-25 15:02:11,231 INFO L132 encePairwiseOnDemand]: 166/170 looper letters, 12 selfloop transitions, 5 changer transitions 0/34 dead transitions. [2021-03-25 15:02:11,231 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 34 transitions, 196 flow [2021-03-25 15:02:11,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 15:02:11,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 15:02:11,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 533 transitions. [2021-03-25 15:02:11,234 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7838235294117647 [2021-03-25 15:02:11,234 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 533 transitions. [2021-03-25 15:02:11,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 533 transitions. [2021-03-25 15:02:11,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:02:11,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 533 transitions. [2021-03-25 15:02:11,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,237 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,237 INFO L185 Difference]: Start difference. First operand has 43 places, 32 transitions, 158 flow. Second operand 4 states and 533 transitions. [2021-03-25 15:02:11,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 34 transitions, 196 flow [2021-03-25 15:02:11,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 34 transitions, 185 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-25 15:02:11,241 INFO L241 Difference]: Finished difference. Result has 46 places, 32 transitions, 162 flow [2021-03-25 15:02:11,242 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=162, PETRI_PLACES=46, PETRI_TRANSITIONS=32} [2021-03-25 15:02:11,242 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2021-03-25 15:02:11,242 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:02:11,242 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 32 transitions, 162 flow [2021-03-25 15:02:11,243 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 32 transitions, 162 flow [2021-03-25 15:02:11,243 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 32 transitions, 162 flow [2021-03-25 15:02:11,258 INFO L129 PetriNetUnfolder]: 23/81 cut-off events. [2021-03-25 15:02:11,258 INFO L130 PetriNetUnfolder]: For 227/230 co-relation queries the response was YES. [2021-03-25 15:02:11,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 81 events. 23/81 cut-off events. For 227/230 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 297 event pairs, 8 based on Foata normal form. 1/76 useless extension candidates. Maximal degree in co-relation 241. Up to 31 conditions per place. [2021-03-25 15:02:11,260 INFO L142 LiptonReduction]: Number of co-enabled transitions 298 [2021-03-25 15:02:11,262 INFO L154 LiptonReduction]: Checked pairs total: 114 [2021-03-25 15:02:11,262 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:02:11,263 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-25 15:02:11,270 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 32 transitions, 162 flow [2021-03-25 15:02:11,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,271 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:02:11,271 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:02:11,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 15:02:11,272 INFO L428 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:02:11,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:02:11,272 INFO L82 PathProgramCache]: Analyzing trace with hash -4984619, now seen corresponding path program 1 times [2021-03-25 15:02:11,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:02:11,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863073883] [2021-03-25 15:02:11,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:02:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:02:11,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:11,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:02:11,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:11,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:02:11,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:02:11,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863073883] [2021-03-25 15:02:11,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:02:11,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 15:02:11,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532317317] [2021-03-25 15:02:11,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 15:02:11,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:02:11,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 15:02:11,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 15:02:11,342 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 170 [2021-03-25 15:02:11,343 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 32 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:02:11,343 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 170 [2021-03-25 15:02:11,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:02:11,373 INFO L129 PetriNetUnfolder]: 23/103 cut-off events. [2021-03-25 15:02:11,374 INFO L130 PetriNetUnfolder]: For 541/561 co-relation queries the response was YES. [2021-03-25 15:02:11,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 103 events. 23/103 cut-off events. For 541/561 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 449 event pairs, 3 based on Foata normal form. 12/113 useless extension candidates. Maximal degree in co-relation 302. Up to 29 conditions per place. [2021-03-25 15:02:11,375 INFO L132 encePairwiseOnDemand]: 167/170 looper letters, 3 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2021-03-25 15:02:11,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 32 transitions, 174 flow [2021-03-25 15:02:11,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 15:02:11,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 15:02:11,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 459 transitions. [2021-03-25 15:02:11,377 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9 [2021-03-25 15:02:11,377 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 459 transitions. [2021-03-25 15:02:11,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 459 transitions. [2021-03-25 15:02:11,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:02:11,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 459 transitions. [2021-03-25 15:02:11,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 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) [2021-03-25 15:02:11,380 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 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) [2021-03-25 15:02:11,380 INFO L185 Difference]: Start difference. First operand has 46 places, 32 transitions, 162 flow. Second operand 3 states and 459 transitions. [2021-03-25 15:02:11,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 32 transitions, 174 flow [2021-03-25 15:02:11,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 32 transitions, 159 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-25 15:02:11,383 INFO L241 Difference]: Finished difference. Result has 45 places, 32 transitions, 158 flow [2021-03-25 15:02:11,383 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=45, PETRI_TRANSITIONS=32} [2021-03-25 15:02:11,383 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2021-03-25 15:02:11,383 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:02:11,384 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 32 transitions, 158 flow [2021-03-25 15:02:11,384 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 32 transitions, 158 flow [2021-03-25 15:02:11,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 32 transitions, 158 flow [2021-03-25 15:02:11,394 INFO L129 PetriNetUnfolder]: 14/82 cut-off events. [2021-03-25 15:02:11,394 INFO L130 PetriNetUnfolder]: For 191/196 co-relation queries the response was YES. [2021-03-25 15:02:11,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 82 events. 14/82 cut-off events. For 191/196 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 360 event pairs, 5 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 225. Up to 26 conditions per place. [2021-03-25 15:02:11,396 INFO L142 LiptonReduction]: Number of co-enabled transitions 298 [2021-03-25 15:02:11,409 INFO L154 LiptonReduction]: Checked pairs total: 125 [2021-03-25 15:02:11,409 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:02:11,409 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-03-25 15:02:11,410 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 32 transitions, 158 flow [2021-03-25 15:02:11,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,410 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:02:11,410 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:02:11,410 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 15:02:11,410 INFO L428 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:02:11,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:02:11,411 INFO L82 PathProgramCache]: Analyzing trace with hash -2113538335, now seen corresponding path program 1 times [2021-03-25 15:02:11,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:02:11,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610213450] [2021-03-25 15:02:11,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:02:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:02:11,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:11,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 15:02:11,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:11,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 15:02:11,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:11,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 15:02:11,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:11,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 15:02:11,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:11,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 15:02:11,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:02:11,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610213450] [2021-03-25 15:02:11,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:02:11,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 15:02:11,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345735221] [2021-03-25 15:02:11,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 15:02:11,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:02:11,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 15:02:11,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 15:02:11,549 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 170 [2021-03-25 15:02:11,549 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 32 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:02:11,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 170 [2021-03-25 15:02:11,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:02:11,693 INFO L129 PetriNetUnfolder]: 89/283 cut-off events. [2021-03-25 15:02:11,693 INFO L130 PetriNetUnfolder]: For 635/658 co-relation queries the response was YES. [2021-03-25 15:02:11,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 906 conditions, 283 events. 89/283 cut-off events. For 635/658 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1761 event pairs, 13 based on Foata normal form. 7/279 useless extension candidates. Maximal degree in co-relation 886. Up to 117 conditions per place. [2021-03-25 15:02:11,697 INFO L132 encePairwiseOnDemand]: 164/170 looper letters, 16 selfloop transitions, 12 changer transitions 0/45 dead transitions. [2021-03-25 15:02:11,697 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 45 transitions, 283 flow [2021-03-25 15:02:11,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 15:02:11,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 15:02:11,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 646 transitions. [2021-03-25 15:02:11,700 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.76 [2021-03-25 15:02:11,700 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 646 transitions. [2021-03-25 15:02:11,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 646 transitions. [2021-03-25 15:02:11,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:02:11,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 646 transitions. [2021-03-25 15:02:11,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.2) internal successors, (646), 5 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,703 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,703 INFO L185 Difference]: Start difference. First operand has 45 places, 32 transitions, 158 flow. Second operand 5 states and 646 transitions. [2021-03-25 15:02:11,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 45 transitions, 283 flow [2021-03-25 15:02:11,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 45 transitions, 278 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 15:02:11,706 INFO L241 Difference]: Finished difference. Result has 50 places, 40 transitions, 253 flow [2021-03-25 15:02:11,706 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=253, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2021-03-25 15:02:11,706 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 4 predicate places. [2021-03-25 15:02:11,706 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:02:11,706 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 40 transitions, 253 flow [2021-03-25 15:02:11,706 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 40 transitions, 253 flow [2021-03-25 15:02:11,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 40 transitions, 253 flow [2021-03-25 15:02:11,725 INFO L129 PetriNetUnfolder]: 41/166 cut-off events. [2021-03-25 15:02:11,725 INFO L130 PetriNetUnfolder]: For 579/605 co-relation queries the response was YES. [2021-03-25 15:02:11,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 553 conditions, 166 events. 41/166 cut-off events. For 579/605 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 914 event pairs, 9 based on Foata normal form. 3/157 useless extension candidates. Maximal degree in co-relation 532. Up to 47 conditions per place. [2021-03-25 15:02:11,728 INFO L142 LiptonReduction]: Number of co-enabled transitions 360 [2021-03-25 15:02:11,732 INFO L154 LiptonReduction]: Checked pairs total: 159 [2021-03-25 15:02:11,732 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:02:11,733 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-25 15:02:11,733 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 253 flow [2021-03-25 15:02:11,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,733 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:02:11,734 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:02:11,734 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 15:02:11,734 INFO L428 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:02:11,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:02:11,734 INFO L82 PathProgramCache]: Analyzing trace with hash -94274911, now seen corresponding path program 2 times [2021-03-25 15:02:11,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:02:11,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356065227] [2021-03-25 15:02:11,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:02:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:02:11,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:11,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 15:02:11,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:11,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 15:02:11,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:11,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 15:02:11,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:11,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 15:02:11,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:11,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 15:02:11,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:02:11,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356065227] [2021-03-25 15:02:11,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:02:11,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 15:02:11,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454616542] [2021-03-25 15:02:11,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 15:02:11,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:02:11,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 15:02:11,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 15:02:11,832 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 170 [2021-03-25 15:02:11,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 253 flow. Second operand has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,833 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:02:11,833 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 170 [2021-03-25 15:02:11,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:02:11,955 INFO L129 PetriNetUnfolder]: 85/283 cut-off events. [2021-03-25 15:02:11,955 INFO L130 PetriNetUnfolder]: For 985/1020 co-relation queries the response was YES. [2021-03-25 15:02:11,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1059 conditions, 283 events. 85/283 cut-off events. For 985/1020 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1798 event pairs, 1 based on Foata normal form. 19/290 useless extension candidates. Maximal degree in co-relation 1036. Up to 113 conditions per place. [2021-03-25 15:02:11,958 INFO L132 encePairwiseOnDemand]: 164/170 looper letters, 14 selfloop transitions, 16 changer transitions 0/47 dead transitions. [2021-03-25 15:02:11,958 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 339 flow [2021-03-25 15:02:11,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 15:02:11,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 15:02:11,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 761 transitions. [2021-03-25 15:02:11,961 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.746078431372549 [2021-03-25 15:02:11,961 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 761 transitions. [2021-03-25 15:02:11,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 761 transitions. [2021-03-25 15:02:11,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:02:11,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 761 transitions. [2021-03-25 15:02:11,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,965 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,965 INFO L185 Difference]: Start difference. First operand has 50 places, 40 transitions, 253 flow. Second operand 6 states and 761 transitions. [2021-03-25 15:02:11,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 339 flow [2021-03-25 15:02:11,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 47 transitions, 332 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-03-25 15:02:11,970 INFO L241 Difference]: Finished difference. Result has 55 places, 43 transitions, 303 flow [2021-03-25 15:02:11,970 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=303, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2021-03-25 15:02:11,971 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 9 predicate places. [2021-03-25 15:02:11,971 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:02:11,971 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 43 transitions, 303 flow [2021-03-25 15:02:11,971 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 43 transitions, 303 flow [2021-03-25 15:02:11,971 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 43 transitions, 303 flow [2021-03-25 15:02:11,989 INFO L129 PetriNetUnfolder]: 36/154 cut-off events. [2021-03-25 15:02:11,989 INFO L130 PetriNetUnfolder]: For 612/629 co-relation queries the response was YES. [2021-03-25 15:02:11,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 154 events. 36/154 cut-off events. For 612/629 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 863 event pairs, 7 based on Foata normal form. 3/147 useless extension candidates. Maximal degree in co-relation 528. Up to 45 conditions per place. [2021-03-25 15:02:11,991 INFO L142 LiptonReduction]: Number of co-enabled transitions 384 [2021-03-25 15:02:11,996 INFO L154 LiptonReduction]: Checked pairs total: 204 [2021-03-25 15:02:11,997 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:02:11,997 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-03-25 15:02:11,997 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 303 flow [2021-03-25 15:02:11,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:11,998 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:02:11,998 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:02:11,998 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 15:02:11,998 INFO L428 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:02:11,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:02:11,998 INFO L82 PathProgramCache]: Analyzing trace with hash -976648301, now seen corresponding path program 3 times [2021-03-25 15:02:11,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:02:11,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283043793] [2021-03-25 15:02:11,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:02:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:02:12,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:12,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 15:02:12,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:12,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 15:02:12,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:12,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 15:02:12,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:12,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 15:02:12,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:12,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 15:02:12,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:02:12,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283043793] [2021-03-25 15:02:12,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:02:12,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 15:02:12,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638334105] [2021-03-25 15:02:12,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 15:02:12,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:02:12,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 15:02:12,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-03-25 15:02:12,163 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 170 [2021-03-25 15:02:12,164 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 303 flow. Second operand has 7 states, 7 states have (on average 129.85714285714286) internal successors, (909), 7 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:12,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:02:12,164 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 170 [2021-03-25 15:02:12,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:02:12,257 INFO L129 PetriNetUnfolder]: 90/307 cut-off events. [2021-03-25 15:02:12,257 INFO L130 PetriNetUnfolder]: For 1251/1300 co-relation queries the response was YES. [2021-03-25 15:02:12,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1284 conditions, 307 events. 90/307 cut-off events. For 1251/1300 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2029 event pairs, 1 based on Foata normal form. 28/323 useless extension candidates. Maximal degree in co-relation 1259. Up to 144 conditions per place. [2021-03-25 15:02:12,260 INFO L132 encePairwiseOnDemand]: 163/170 looper letters, 17 selfloop transitions, 18 changer transitions 0/52 dead transitions. [2021-03-25 15:02:12,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 52 transitions, 436 flow [2021-03-25 15:02:12,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 15:02:12,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 15:02:12,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 663 transitions. [2021-03-25 15:02:12,263 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.78 [2021-03-25 15:02:12,263 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 663 transitions. [2021-03-25 15:02:12,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 663 transitions. [2021-03-25 15:02:12,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:02:12,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 663 transitions. [2021-03-25 15:02:12,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 132.6) internal successors, (663), 5 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:12,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:12,267 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:12,267 INFO L185 Difference]: Start difference. First operand has 55 places, 43 transitions, 303 flow. Second operand 5 states and 663 transitions. [2021-03-25 15:02:12,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 52 transitions, 436 flow [2021-03-25 15:02:12,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 52 transitions, 435 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 15:02:12,270 INFO L241 Difference]: Finished difference. Result has 60 places, 48 transitions, 404 flow [2021-03-25 15:02:12,271 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=404, PETRI_PLACES=60, PETRI_TRANSITIONS=48} [2021-03-25 15:02:12,271 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 14 predicate places. [2021-03-25 15:02:12,271 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:02:12,271 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 48 transitions, 404 flow [2021-03-25 15:02:12,271 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 48 transitions, 404 flow [2021-03-25 15:02:12,272 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 48 transitions, 404 flow [2021-03-25 15:02:12,292 INFO L129 PetriNetUnfolder]: 45/172 cut-off events. [2021-03-25 15:02:12,292 INFO L130 PetriNetUnfolder]: For 784/826 co-relation queries the response was YES. [2021-03-25 15:02:12,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 712 conditions, 172 events. 45/172 cut-off events. For 784/826 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 955 event pairs, 9 based on Foata normal form. 8/164 useless extension candidates. Maximal degree in co-relation 686. Up to 52 conditions per place. [2021-03-25 15:02:12,294 INFO L142 LiptonReduction]: Number of co-enabled transitions 420 [2021-03-25 15:02:12,525 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 15:02:12,936 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2021-03-25 15:02:13,066 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-03-25 15:02:13,088 INFO L154 LiptonReduction]: Checked pairs total: 537 [2021-03-25 15:02:13,088 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 15:02:13,088 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 817 [2021-03-25 15:02:13,089 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 48 transitions, 413 flow [2021-03-25 15:02:13,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 129.85714285714286) internal successors, (909), 7 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:13,089 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:02:13,089 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:02:13,089 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 15:02:13,090 INFO L428 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:02:13,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:02:13,090 INFO L82 PathProgramCache]: Analyzing trace with hash -44928175, now seen corresponding path program 4 times [2021-03-25 15:02:13,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:02:13,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528526435] [2021-03-25 15:02:13,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:02:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:02:13,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:13,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 15:02:13,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:13,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 15:02:13,185 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-25 15:02:13,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 15:02:13,203 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-25 15:02:13,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 15:02:13,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:13,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 15:02:13,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:02:13,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528526435] [2021-03-25 15:02:13,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:02:13,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 15:02:13,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886624365] [2021-03-25 15:02:13,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 15:02:13,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:02:13,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 15:02:13,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-03-25 15:02:13,241 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 171 [2021-03-25 15:02:13,243 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 413 flow. Second operand has 7 states, 7 states have (on average 127.85714285714286) internal successors, (895), 7 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:13,243 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:02:13,243 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 171 [2021-03-25 15:02:13,243 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:02:13,412 INFO L129 PetriNetUnfolder]: 86/292 cut-off events. [2021-03-25 15:02:13,412 INFO L130 PetriNetUnfolder]: For 1447/1535 co-relation queries the response was YES. [2021-03-25 15:02:13,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1398 conditions, 292 events. 86/292 cut-off events. For 1447/1535 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1878 event pairs, 5 based on Foata normal form. 29/305 useless extension candidates. Maximal degree in co-relation 1370. Up to 116 conditions per place. [2021-03-25 15:02:13,415 INFO L132 encePairwiseOnDemand]: 165/171 looper letters, 14 selfloop transitions, 20 changer transitions 0/51 dead transitions. [2021-03-25 15:02:13,415 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 51 transitions, 501 flow [2021-03-25 15:02:13,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 15:02:13,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 15:02:13,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 652 transitions. [2021-03-25 15:02:13,418 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7625730994152047 [2021-03-25 15:02:13,418 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 652 transitions. [2021-03-25 15:02:13,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 652 transitions. [2021-03-25 15:02:13,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:02:13,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 652 transitions. [2021-03-25 15:02:13,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.4) internal successors, (652), 5 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:13,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:13,422 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:13,423 INFO L185 Difference]: Start difference. First operand has 60 places, 48 transitions, 413 flow. Second operand 5 states and 652 transitions. [2021-03-25 15:02:13,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 51 transitions, 501 flow [2021-03-25 15:02:13,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 51 transitions, 480 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 15:02:13,427 INFO L241 Difference]: Finished difference. Result has 63 places, 48 transitions, 451 flow [2021-03-25 15:02:13,427 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=451, PETRI_PLACES=63, PETRI_TRANSITIONS=48} [2021-03-25 15:02:13,427 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 17 predicate places. [2021-03-25 15:02:13,427 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:02:13,427 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 48 transitions, 451 flow [2021-03-25 15:02:13,428 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 48 transitions, 451 flow [2021-03-25 15:02:13,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 48 transitions, 451 flow [2021-03-25 15:02:13,453 INFO L129 PetriNetUnfolder]: 42/160 cut-off events. [2021-03-25 15:02:13,454 INFO L130 PetriNetUnfolder]: For 1037/1083 co-relation queries the response was YES. [2021-03-25 15:02:13,455 INFO L84 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 160 events. 42/160 cut-off events. For 1037/1083 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 857 event pairs, 7 based on Foata normal form. 11/160 useless extension candidates. Maximal degree in co-relation 690. Up to 46 conditions per place. [2021-03-25 15:02:13,456 INFO L142 LiptonReduction]: Number of co-enabled transitions 420 [2021-03-25 15:02:13,487 INFO L154 LiptonReduction]: Checked pairs total: 288 [2021-03-25 15:02:13,487 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:02:13,487 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 60 [2021-03-25 15:02:13,489 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 48 transitions, 451 flow [2021-03-25 15:02:13,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 127.85714285714286) internal successors, (895), 7 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:13,489 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:02:13,489 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:02:13,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 15:02:13,490 INFO L428 AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:02:13,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:02:13,490 INFO L82 PathProgramCache]: Analyzing trace with hash -154531750, now seen corresponding path program 1 times [2021-03-25 15:02:13,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:02:13,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691345300] [2021-03-25 15:02:13,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:02:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:02:13,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:13,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:02:13,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:13,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:02:13,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:02:13,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691345300] [2021-03-25 15:02:13,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:02:13,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 15:02:13,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510295307] [2021-03-25 15:02:13,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 15:02:13,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:02:13,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 15:02:13,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 15:02:13,538 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 171 [2021-03-25 15:02:13,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 48 transitions, 451 flow. Second operand has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:13,538 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:02:13,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 171 [2021-03-25 15:02:13,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:02:13,588 INFO L129 PetriNetUnfolder]: 61/260 cut-off events. [2021-03-25 15:02:13,588 INFO L130 PetriNetUnfolder]: For 1615/1669 co-relation queries the response was YES. [2021-03-25 15:02:13,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1183 conditions, 260 events. 61/260 cut-off events. For 1615/1669 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1769 event pairs, 8 based on Foata normal form. 16/259 useless extension candidates. Maximal degree in co-relation 1154. Up to 75 conditions per place. [2021-03-25 15:02:13,590 INFO L132 encePairwiseOnDemand]: 168/171 looper letters, 3 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2021-03-25 15:02:13,591 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 48 transitions, 463 flow [2021-03-25 15:02:13,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 15:02:13,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 15:02:13,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2021-03-25 15:02:13,593 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8830409356725146 [2021-03-25 15:02:13,593 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 453 transitions. [2021-03-25 15:02:13,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 453 transitions. [2021-03-25 15:02:13,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:02:13,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 453 transitions. [2021-03-25 15:02:13,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:13,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:13,595 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:13,595 INFO L185 Difference]: Start difference. First operand has 63 places, 48 transitions, 451 flow. Second operand 3 states and 453 transitions. [2021-03-25 15:02:13,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 48 transitions, 463 flow [2021-03-25 15:02:13,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 48 transitions, 409 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-25 15:02:13,600 INFO L241 Difference]: Finished difference. Result has 61 places, 48 transitions, 408 flow [2021-03-25 15:02:13,600 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=61, PETRI_TRANSITIONS=48} [2021-03-25 15:02:13,600 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 15 predicate places. [2021-03-25 15:02:13,600 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:02:13,600 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 48 transitions, 408 flow [2021-03-25 15:02:13,601 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 48 transitions, 408 flow [2021-03-25 15:02:13,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 48 transitions, 408 flow [2021-03-25 15:02:13,635 INFO L129 PetriNetUnfolder]: 61/260 cut-off events. [2021-03-25 15:02:13,636 INFO L130 PetriNetUnfolder]: For 901/937 co-relation queries the response was YES. [2021-03-25 15:02:13,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1061 conditions, 260 events. 61/260 cut-off events. For 901/937 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1747 event pairs, 8 based on Foata normal form. 15/258 useless extension candidates. Maximal degree in co-relation 1035. Up to 69 conditions per place. [2021-03-25 15:02:13,640 INFO L142 LiptonReduction]: Number of co-enabled transitions 420 [2021-03-25 15:02:13,649 INFO L154 LiptonReduction]: Checked pairs total: 369 [2021-03-25 15:02:13,649 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:02:13,649 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 49 [2021-03-25 15:02:13,651 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 48 transitions, 408 flow [2021-03-25 15:02:13,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:13,652 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:02:13,652 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:02:13,652 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 15:02:13,652 INFO L428 AbstractCegarLoop]: === Iteration 13 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:02:13,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:02:13,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1695104629, now seen corresponding path program 1 times [2021-03-25 15:02:13,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:02:13,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240345711] [2021-03-25 15:02:13,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:02:13,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:02:13,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:13,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:02:13,719 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-25 15:02:13,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 15:02:13,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:13,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:02:13,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:02:13,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240345711] [2021-03-25 15:02:13,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:02:13,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 15:02:13,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799927131] [2021-03-25 15:02:13,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 15:02:13,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:02:13,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 15:02:13,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 15:02:13,731 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 171 [2021-03-25 15:02:13,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 48 transitions, 408 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) [2021-03-25 15:02:13,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:02:13,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 171 [2021-03-25 15:02:13,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:02:13,858 INFO L129 PetriNetUnfolder]: 385/856 cut-off events. [2021-03-25 15:02:13,859 INFO L130 PetriNetUnfolder]: For 1740/2046 co-relation queries the response was YES. [2021-03-25 15:02:13,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2743 conditions, 856 events. 385/856 cut-off events. For 1740/2046 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 6294 event pairs, 117 based on Foata normal form. 201/971 useless extension candidates. Maximal degree in co-relation 2715. Up to 514 conditions per place. [2021-03-25 15:02:13,865 INFO L132 encePairwiseOnDemand]: 165/171 looper letters, 11 selfloop transitions, 8 changer transitions 5/58 dead transitions. [2021-03-25 15:02:13,865 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 58 transitions, 468 flow [2021-03-25 15:02:13,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 15:02:13,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 15:02:13,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 723 transitions. [2021-03-25 15:02:13,867 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8456140350877193 [2021-03-25 15:02:13,867 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 723 transitions. [2021-03-25 15:02:13,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 723 transitions. [2021-03-25 15:02:13,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:02:13,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 723 transitions. [2021-03-25 15:02:13,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 144.6) internal successors, (723), 5 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:13,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:13,871 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:13,871 INFO L185 Difference]: Start difference. First operand has 61 places, 48 transitions, 408 flow. Second operand 5 states and 723 transitions. [2021-03-25 15:02:13,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 58 transitions, 468 flow [2021-03-25 15:02:13,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 58 transitions, 463 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 15:02:13,877 INFO L241 Difference]: Finished difference. Result has 67 places, 50 transitions, 437 flow [2021-03-25 15:02:13,877 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=437, PETRI_PLACES=67, PETRI_TRANSITIONS=50} [2021-03-25 15:02:13,878 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 21 predicate places. [2021-03-25 15:02:13,878 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:02:13,878 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 50 transitions, 437 flow [2021-03-25 15:02:13,878 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 50 transitions, 437 flow [2021-03-25 15:02:13,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 50 transitions, 437 flow [2021-03-25 15:02:13,918 INFO L129 PetriNetUnfolder]: 172/417 cut-off events. [2021-03-25 15:02:13,918 INFO L130 PetriNetUnfolder]: For 1131/1245 co-relation queries the response was YES. [2021-03-25 15:02:13,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1590 conditions, 417 events. 172/417 cut-off events. For 1131/1245 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 2612 event pairs, 47 based on Foata normal form. 23/402 useless extension candidates. Maximal degree in co-relation 1560. Up to 262 conditions per place. [2021-03-25 15:02:13,923 INFO L142 LiptonReduction]: Number of co-enabled transitions 350 [2021-03-25 15:02:14,443 INFO L154 LiptonReduction]: Checked pairs total: 71 [2021-03-25 15:02:14,443 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 15:02:14,443 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 565 [2021-03-25 15:02:14,444 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 49 transitions, 449 flow [2021-03-25 15:02:14,444 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) [2021-03-25 15:02:14,444 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:02:14,444 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:02:14,444 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 15:02:14,444 INFO L428 AbstractCegarLoop]: === Iteration 14 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:02:14,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:02:14,445 INFO L82 PathProgramCache]: Analyzing trace with hash -73422556, now seen corresponding path program 1 times [2021-03-25 15:02:14,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:02:14,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072763314] [2021-03-25 15:02:14,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:02:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:02:14,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:14,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:02:14,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:14,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:02:14,490 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-25 15:02:14,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 15:02:14,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:14,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:02:14,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:02:14,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072763314] [2021-03-25 15:02:14,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:02:14,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 15:02:14,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092164682] [2021-03-25 15:02:14,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 15:02:14,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:02:14,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 15:02:14,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 15:02:14,503 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 176 [2021-03-25 15:02:14,503 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 49 transitions, 449 flow. Second operand has 5 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:14,503 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:02:14,503 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 176 [2021-03-25 15:02:14,503 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:02:14,580 INFO L129 PetriNetUnfolder]: 107/301 cut-off events. [2021-03-25 15:02:14,580 INFO L130 PetriNetUnfolder]: For 1195/1696 co-relation queries the response was YES. [2021-03-25 15:02:14,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1319 conditions, 301 events. 107/301 cut-off events. For 1195/1696 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 1874 event pairs, 6 based on Foata normal form. 182/465 useless extension candidates. Maximal degree in co-relation 1287. Up to 206 conditions per place. [2021-03-25 15:02:14,583 INFO L132 encePairwiseOnDemand]: 170/176 looper letters, 6 selfloop transitions, 15 changer transitions 6/54 dead transitions. [2021-03-25 15:02:14,583 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 54 transitions, 495 flow [2021-03-25 15:02:14,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 15:02:14,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 15:02:14,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1047 transitions. [2021-03-25 15:02:14,586 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8498376623376623 [2021-03-25 15:02:14,586 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1047 transitions. [2021-03-25 15:02:14,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1047 transitions. [2021-03-25 15:02:14,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:02:14,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1047 transitions. [2021-03-25 15:02:14,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 149.57142857142858) internal successors, (1047), 7 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:14,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:14,590 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:14,590 INFO L185 Difference]: Start difference. First operand has 66 places, 49 transitions, 449 flow. Second operand 7 states and 1047 transitions. [2021-03-25 15:02:14,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 54 transitions, 495 flow [2021-03-25 15:02:14,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 54 transitions, 451 flow, removed 3 selfloop flow, removed 11 redundant places. [2021-03-25 15:02:14,594 INFO L241 Difference]: Finished difference. Result has 64 places, 48 transitions, 413 flow [2021-03-25 15:02:14,595 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=413, PETRI_PLACES=64, PETRI_TRANSITIONS=48} [2021-03-25 15:02:14,595 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 18 predicate places. [2021-03-25 15:02:14,595 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:02:14,595 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 48 transitions, 413 flow [2021-03-25 15:02:14,595 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 48 transitions, 413 flow [2021-03-25 15:02:14,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 48 transitions, 413 flow [2021-03-25 15:02:14,619 INFO L129 PetriNetUnfolder]: 89/273 cut-off events. [2021-03-25 15:02:14,619 INFO L130 PetriNetUnfolder]: For 1074/1293 co-relation queries the response was YES. [2021-03-25 15:02:14,621 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1273 conditions, 273 events. 89/273 cut-off events. For 1074/1293 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 1725 event pairs, 6 based on Foata normal form. 8/263 useless extension candidates. Maximal degree in co-relation 1247. Up to 182 conditions per place. [2021-03-25 15:02:14,623 INFO L142 LiptonReduction]: Number of co-enabled transitions 336 [2021-03-25 15:02:14,768 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 66 [2021-03-25 15:02:15,073 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 85 [2021-03-25 15:02:15,136 INFO L154 LiptonReduction]: Checked pairs total: 9 [2021-03-25 15:02:15,137 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 15:02:15,137 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 542 [2021-03-25 15:02:15,137 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 48 transitions, 417 flow [2021-03-25 15:02:15,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:15,138 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:02:15,138 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:02:15,138 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 15:02:15,138 INFO L428 AbstractCegarLoop]: === Iteration 15 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:02:15,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:02:15,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1608743035, now seen corresponding path program 1 times [2021-03-25 15:02:15,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:02:15,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488978365] [2021-03-25 15:02:15,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:02:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:02:15,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:15,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:02:15,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:15,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:02:15,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:15,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:02:15,187 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-25 15:02:15,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 15:02:15,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:15,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:02:15,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:02:15,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488978365] [2021-03-25 15:02:15,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:02:15,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 15:02:15,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543233475] [2021-03-25 15:02:15,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 15:02:15,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:02:15,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 15:02:15,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 15:02:15,199 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 177 [2021-03-25 15:02:15,200 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 48 transitions, 417 flow. Second operand has 6 states, 6 states have (on average 147.83333333333334) internal successors, (887), 6 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:15,200 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:02:15,200 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 177 [2021-03-25 15:02:15,200 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:02:15,294 INFO L129 PetriNetUnfolder]: 71/240 cut-off events. [2021-03-25 15:02:15,295 INFO L130 PetriNetUnfolder]: For 1321/1845 co-relation queries the response was YES. [2021-03-25 15:02:15,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1257 conditions, 240 events. 71/240 cut-off events. For 1321/1845 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1543 event pairs, 0 based on Foata normal form. 178/404 useless extension candidates. Maximal degree in co-relation 1229. Up to 176 conditions per place. [2021-03-25 15:02:15,297 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 3 selfloop transitions, 17 changer transitions 15/51 dead transitions. [2021-03-25 15:02:15,297 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 51 transitions, 488 flow [2021-03-25 15:02:15,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 15:02:15,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 15:02:15,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1349 transitions. [2021-03-25 15:02:15,300 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8468298807281858 [2021-03-25 15:02:15,300 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1349 transitions. [2021-03-25 15:02:15,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1349 transitions. [2021-03-25 15:02:15,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:02:15,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1349 transitions. [2021-03-25 15:02:15,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 149.88888888888889) internal successors, (1349), 9 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:15,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 177.0) internal successors, (1770), 10 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:15,307 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 177.0) internal successors, (1770), 10 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:15,307 INFO L185 Difference]: Start difference. First operand has 64 places, 48 transitions, 417 flow. Second operand 9 states and 1349 transitions. [2021-03-25 15:02:15,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 51 transitions, 488 flow [2021-03-25 15:02:15,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 51 transitions, 414 flow, removed 20 selfloop flow, removed 5 redundant places. [2021-03-25 15:02:15,312 INFO L241 Difference]: Finished difference. Result has 70 places, 36 transitions, 298 flow [2021-03-25 15:02:15,312 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=298, PETRI_PLACES=70, PETRI_TRANSITIONS=36} [2021-03-25 15:02:15,313 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 24 predicate places. [2021-03-25 15:02:15,313 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:02:15,313 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 36 transitions, 298 flow [2021-03-25 15:02:15,313 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 36 transitions, 298 flow [2021-03-25 15:02:15,313 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 36 transitions, 298 flow [2021-03-25 15:02:15,321 INFO L129 PetriNetUnfolder]: 17/83 cut-off events. [2021-03-25 15:02:15,322 INFO L130 PetriNetUnfolder]: For 279/314 co-relation queries the response was YES. [2021-03-25 15:02:15,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 83 events. 17/83 cut-off events. For 279/314 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 326 event pairs, 0 based on Foata normal form. 3/83 useless extension candidates. Maximal degree in co-relation 345. Up to 31 conditions per place. [2021-03-25 15:02:15,323 INFO L142 LiptonReduction]: Number of co-enabled transitions 120 [2021-03-25 15:02:16,005 WARN L205 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 182 [2021-03-25 15:02:16,228 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-03-25 15:02:17,548 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 337 DAG size of output: 258 [2021-03-25 15:02:18,047 WARN L205 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-03-25 15:02:18,675 WARN L205 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 182 [2021-03-25 15:02:18,908 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-03-25 15:02:20,817 WARN L205 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 337 DAG size of output: 262 [2021-03-25 15:02:21,321 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-03-25 15:02:21,368 INFO L154 LiptonReduction]: Checked pairs total: 22 [2021-03-25 15:02:21,369 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 15:02:21,369 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6056 [2021-03-25 15:02:21,369 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 34 transitions, 298 flow [2021-03-25 15:02:21,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 147.83333333333334) internal successors, (887), 6 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:21,370 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:02:21,370 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:02:21,370 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 15:02:21,370 INFO L428 AbstractCegarLoop]: === Iteration 16 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:02:21,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:02:21,370 INFO L82 PathProgramCache]: Analyzing trace with hash 2000859085, now seen corresponding path program 1 times [2021-03-25 15:02:21,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:02:21,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678891842] [2021-03-25 15:02:21,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:02:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:02:21,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:21,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 15:02:21,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:21,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 15:02:21,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:21,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 15:02:21,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:21,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 15:02:21,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:02:21,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 15:02:21,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:02:21,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678891842] [2021-03-25 15:02:21,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:02:21,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 15:02:21,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158462583] [2021-03-25 15:02:21,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 15:02:21,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:02:21,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 15:02:21,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 15:02:21,459 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 181 [2021-03-25 15:02:21,460 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 34 transitions, 298 flow. Second operand has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:21,460 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:02:21,460 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 181 [2021-03-25 15:02:21,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:02:21,527 INFO L129 PetriNetUnfolder]: 18/83 cut-off events. [2021-03-25 15:02:21,528 INFO L130 PetriNetUnfolder]: For 486/529 co-relation queries the response was YES. [2021-03-25 15:02:21,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 83 events. 18/83 cut-off events. For 486/529 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 352 event pairs, 0 based on Foata normal form. 8/87 useless extension candidates. Maximal degree in co-relation 359. Up to 31 conditions per place. [2021-03-25 15:02:21,528 INFO L132 encePairwiseOnDemand]: 177/181 looper letters, 6 selfloop transitions, 2 changer transitions 3/34 dead transitions. [2021-03-25 15:02:21,528 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 34 transitions, 303 flow [2021-03-25 15:02:21,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 15:02:21,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 15:02:21,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 655 transitions. [2021-03-25 15:02:21,531 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7237569060773481 [2021-03-25 15:02:21,531 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 655 transitions. [2021-03-25 15:02:21,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 655 transitions. [2021-03-25 15:02:21,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:02:21,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 655 transitions. [2021-03-25 15:02:21,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:21,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:21,534 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:21,534 INFO L185 Difference]: Start difference. First operand has 63 places, 34 transitions, 298 flow. Second operand 5 states and 655 transitions. [2021-03-25 15:02:21,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 34 transitions, 303 flow [2021-03-25 15:02:21,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 34 transitions, 215 flow, removed 14 selfloop flow, removed 17 redundant places. [2021-03-25 15:02:21,536 INFO L241 Difference]: Finished difference. Result has 50 places, 31 transitions, 181 flow [2021-03-25 15:02:21,536 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=181, PETRI_PLACES=50, PETRI_TRANSITIONS=31} [2021-03-25 15:02:21,537 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 4 predicate places. [2021-03-25 15:02:21,537 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:02:21,537 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 31 transitions, 181 flow [2021-03-25 15:02:21,537 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 31 transitions, 181 flow [2021-03-25 15:02:21,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 31 transitions, 181 flow [2021-03-25 15:02:21,542 INFO L129 PetriNetUnfolder]: 11/52 cut-off events. [2021-03-25 15:02:21,542 INFO L130 PetriNetUnfolder]: For 93/102 co-relation queries the response was YES. [2021-03-25 15:02:21,542 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 52 events. 11/52 cut-off events. For 93/102 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 180 event pairs, 0 based on Foata normal form. 2/52 useless extension candidates. Maximal degree in co-relation 162. Up to 14 conditions per place. [2021-03-25 15:02:21,542 INFO L142 LiptonReduction]: Number of co-enabled transitions 68 [2021-03-25 15:02:21,815 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-25 15:02:22,110 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-25 15:02:22,649 WARN L205 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-03-25 15:02:23,189 WARN L205 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-03-25 15:02:23,377 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-25 15:02:23,802 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 92 [2021-03-25 15:02:23,950 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-03-25 15:02:24,040 INFO L154 LiptonReduction]: Checked pairs total: 26 [2021-03-25 15:02:24,040 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 15:02:24,041 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2504 [2021-03-25 15:02:24,041 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 27 transitions, 170 flow [2021-03-25 15:02:24,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:02:24,042 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:02:24,042 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:02:24,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 15:02:24,042 INFO L428 AbstractCegarLoop]: === Iteration 17 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:02:24,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:02:24,042 INFO L82 PathProgramCache]: Analyzing trace with hash -2083973876, now seen corresponding path program 1 times [2021-03-25 15:02:24,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:02:24,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145926105] [2021-03-25 15:02:24,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:02:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 15:02:24,065 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 15:02:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 15:02:24,087 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 15:02:24,110 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 15:02:24,110 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 15:02:24,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 15:02:24,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 03:02:24 BasicIcfg [2021-03-25 15:02:24,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 15:02:24,164 INFO L168 Benchmark]: Toolchain (without parser) took 30271.96 ms. Allocated memory was 255.9 MB in the beginning and 767.6 MB in the end (delta: 511.7 MB). Free memory was 234.9 MB in the beginning and 521.5 MB in the end (delta: -286.6 MB). Peak memory consumption was 224.1 MB. Max. memory is 16.0 GB. [2021-03-25 15:02:24,165 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 15:02:24,165 INFO L168 Benchmark]: CACSL2BoogieTranslator took 583.94 ms. Allocated memory was 255.9 MB in the beginning and 398.5 MB in the end (delta: 142.6 MB). Free memory was 234.9 MB in the beginning and 358.3 MB in the end (delta: -123.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-25 15:02:24,165 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.84 ms. Allocated memory is still 398.5 MB. Free memory was 358.3 MB in the beginning and 355.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 15:02:24,165 INFO L168 Benchmark]: Boogie Preprocessor took 35.04 ms. Allocated memory is still 398.5 MB. Free memory was 355.4 MB in the beginning and 353.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 15:02:24,165 INFO L168 Benchmark]: RCFGBuilder took 1873.58 ms. Allocated memory is still 398.5 MB. Free memory was 353.0 MB in the beginning and 311.3 MB in the end (delta: 41.7 MB). Peak memory consumption was 48.3 MB. Max. memory is 16.0 GB. [2021-03-25 15:02:24,165 INFO L168 Benchmark]: TraceAbstraction took 27695.20 ms. Allocated memory was 398.5 MB in the beginning and 767.6 MB in the end (delta: 369.1 MB). Free memory was 310.3 MB in the beginning and 521.5 MB in the end (delta: -211.2 MB). Peak memory consumption was 156.9 MB. Max. memory is 16.0 GB. [2021-03-25 15:02:24,166 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 583.94 ms. Allocated memory was 255.9 MB in the beginning and 398.5 MB in the end (delta: 142.6 MB). Free memory was 234.9 MB in the beginning and 358.3 MB in the end (delta: -123.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 78.84 ms. Allocated memory is still 398.5 MB. Free memory was 358.3 MB in the beginning and 355.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 35.04 ms. Allocated memory is still 398.5 MB. Free memory was 355.4 MB in the beginning and 353.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1873.58 ms. Allocated memory is still 398.5 MB. Free memory was 353.0 MB in the beginning and 311.3 MB in the end (delta: 41.7 MB). Peak memory consumption was 48.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 27695.20 ms. Allocated memory was 398.5 MB in the beginning and 767.6 MB in the end (delta: 369.1 MB). Free memory was 310.3 MB in the beginning and 521.5 MB in the end (delta: -211.2 MB). Peak memory consumption was 156.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6088.2ms, 100 PlacesBefore, 46 PlacesAfterwards, 92 TransitionsBefore, 37 TransitionsAfterwards, 1578 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 62 TotalNumberOfCompositions, 2818 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1476, positive: 1397, positive conditional: 0, positive unconditional: 1397, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 999, positive: 973, positive conditional: 0, positive unconditional: 973, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 999, positive: 973, positive conditional: 0, positive unconditional: 973, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 999, positive: 967, positive conditional: 0, positive unconditional: 967, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 32, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 356, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 334, negative conditional: 0, negative unconditional: 334, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1476, positive: 424, positive conditional: 0, positive unconditional: 424, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 999, unknown conditional: 0, unknown unconditional: 999] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5475.8ms, 43 PlacesBefore, 33 PlacesAfterwards, 34 TransitionsBefore, 24 TransitionsAfterwards, 318 CoEnabledTransitionPairs, 3 FixpointIterations, 6 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 863 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 380, positive: 324, positive conditional: 0, positive unconditional: 324, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 72, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 72, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 72, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 450, positive: 115, positive conditional: 0, positive unconditional: 115, negative: 335, negative conditional: 0, negative unconditional: 335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 380, positive: 267, positive conditional: 0, positive unconditional: 267, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 72, unknown conditional: 0, unknown unconditional: 72] , Statistics on independence cache: Total cache size (in pairs): 134, Positive cache size: 115, Positive conditional cache size: 0, Positive unconditional cache size: 115, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1392.7ms, 37 PlacesBefore, 31 PlacesAfterwards, 24 TransitionsBefore, 22 TransitionsAfterwards, 212 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 594 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 184, positive: 136, positive conditional: 0, positive unconditional: 136, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 5, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 174, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 184, positive: 135, positive conditional: 0, positive unconditional: 135, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 116, Positive conditional cache size: 0, Positive unconditional cache size: 116, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.2ms, 34 PlacesBefore, 34 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 244 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 161 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 62, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 27, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 62, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 118, Positive conditional cache size: 0, Positive unconditional cache size: 118, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.1ms, 37 PlacesBefore, 37 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 262 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 104 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, 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: 1, positive: 1, positive conditional: 0, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 15, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 144, Positive cache size: 119, Positive conditional cache size: 0, Positive unconditional cache size: 119, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.7ms, 43 PlacesBefore, 43 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 298 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 124 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 38, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 31, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 38, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 155, Positive cache size: 128, Positive conditional cache size: 0, Positive unconditional cache size: 128, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.8ms, 46 PlacesBefore, 46 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 298 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 114 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 42, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 8, negative conditional: 0, negative unconditional: 8, 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: 42, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 155, Positive cache size: 128, Positive conditional cache size: 0, Positive unconditional cache size: 128, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.3ms, 45 PlacesBefore, 45 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 298 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 125 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 51, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 5, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 5, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 51, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 160, Positive cache size: 132, Positive conditional cache size: 0, Positive unconditional cache size: 132, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.1ms, 50 PlacesBefore, 50 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 159 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 92, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, 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: 1, positive: 1, positive conditional: 0, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 92, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 161, Positive cache size: 133, Positive conditional cache size: 0, Positive unconditional cache size: 133, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.5ms, 55 PlacesBefore, 55 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 384 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 204 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 98, positive: 85, positive conditional: 0, positive unconditional: 85, negative: 13, negative conditional: 0, negative unconditional: 13, 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: 98, positive: 85, positive conditional: 0, positive unconditional: 85, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 161, Positive cache size: 133, Positive conditional cache size: 0, Positive unconditional cache size: 133, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 816.7ms, 60 PlacesBefore, 60 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 420 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 537 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 315, positive: 285, positive conditional: 0, positive unconditional: 285, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, 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: 1, positive: 1, positive conditional: 0, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 315, positive: 284, positive conditional: 0, positive unconditional: 284, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 153, Positive cache size: 130, Positive conditional cache size: 0, Positive unconditional cache size: 130, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 59.6ms, 63 PlacesBefore, 63 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 420 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 288 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 173, positive: 156, positive conditional: 0, positive unconditional: 156, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 23, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 173, positive: 156, positive conditional: 0, positive unconditional: 156, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 154, Positive cache size: 130, Positive conditional cache size: 0, Positive unconditional cache size: 130, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.7ms, 61 PlacesBefore, 61 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 420 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 369 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 207, positive: 189, positive conditional: 0, positive unconditional: 189, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, 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: 1, positive: 1, positive conditional: 0, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 207, positive: 188, positive conditional: 0, positive unconditional: 188, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 155, Positive cache size: 131, Positive conditional cache size: 0, Positive unconditional cache size: 131, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 564.9ms, 67 PlacesBefore, 66 PlacesAfterwards, 50 TransitionsBefore, 49 TransitionsAfterwards, 350 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 71 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 64, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 64, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 131, Positive cache size: 117, Positive conditional cache size: 0, Positive unconditional cache size: 117, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 541.3ms, 64 PlacesBefore, 64 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 336 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 9 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 0, positive unconditional: 9, 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: 1, positive: 1, positive conditional: 0, 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: 1, positive: 1, positive conditional: 0, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 118, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6055.5ms, 70 PlacesBefore, 63 PlacesAfterwards, 36 TransitionsBefore, 34 TransitionsAfterwards, 120 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 22 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 22, positive conditional: 0, positive unconditional: 22, 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: 22, positive: 22, positive conditional: 0, positive unconditional: 22, 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): 93, Positive cache size: 90, Positive conditional cache size: 0, Positive unconditional cache size: 90, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2503.4ms, 50 PlacesBefore, 48 PlacesAfterwards, 31 TransitionsBefore, 27 TransitionsAfterwards, 68 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 26 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26, positive: 26, positive conditional: 0, positive unconditional: 26, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 26, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L710] 0 _Bool main$tmp_guard0; [L711] 0 _Bool main$tmp_guard1; [L713] 0 int x = 0; [L715] 0 int y = 0; [L716] 0 _Bool y$flush_delayed; [L717] 0 int y$mem_tmp; [L718] 0 _Bool y$r_buff0_thd0; [L719] 0 _Bool y$r_buff0_thd1; [L720] 0 _Bool y$r_buff0_thd2; [L721] 0 _Bool y$r_buff0_thd3; [L722] 0 _Bool y$r_buff1_thd0; [L723] 0 _Bool y$r_buff1_thd1; [L724] 0 _Bool y$r_buff1_thd2; [L725] 0 _Bool y$r_buff1_thd3; [L726] 0 _Bool y$read_delayed; [L727] 0 int *y$read_delayed_var; [L728] 0 int y$w_buff0; [L729] 0 _Bool y$w_buff0_used; [L730] 0 int y$w_buff1; [L731] 0 _Bool y$w_buff1_used; [L733] 0 int z = 0; [L734] 0 _Bool weak$$choice0; [L735] 0 _Bool weak$$choice2; [L811] 0 pthread_t t2498; [L812] FCALL, FORK 0 pthread_create(&t2498, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L813] 0 pthread_t t2499; [L814] FCALL, FORK 0 pthread_create(&t2499, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L815] 0 pthread_t t2500; [L816] FCALL, FORK 0 pthread_create(&t2500, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L774] 3 y$w_buff1 = y$w_buff0 [L775] 3 y$w_buff0 = 2 [L776] 3 y$w_buff1_used = y$w_buff0_used [L777] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L779] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L780] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L781] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L782] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L783] 3 y$r_buff0_thd3 = (_Bool)1 [L786] 3 z = 1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L739] 1 z = 2 [L742] 1 x = 1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L754] 2 x = 2 [L757] 2 y = 1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L760] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L760] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L760] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L760] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L761] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L761] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L762] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L762] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L763] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L763] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L764] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L764] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L789] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L789] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L790] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L790] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L791] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L792] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L793] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L793] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L796] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L798] 3 return 0; [L747] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L749] 1 return 0; [L767] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L769] 2 return 0; [L818] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L822] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L822] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L822] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L822] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L823] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L823] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L824] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L825] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L826] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L829] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L830] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L831] 0 y$flush_delayed = weak$$choice2 [L832] 0 y$mem_tmp = y [L833] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L833] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L834] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L834] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0) [L834] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L834] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L835] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L835] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1) [L835] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L835] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L836] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L836] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used) [L836] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L836] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L837] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L837] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L837] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L837] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L838] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L838] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0) [L838] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L838] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L839] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L839] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2) [L841] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L841] 0 y = y$flush_delayed ? y$mem_tmp : y [L842] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=53, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 94 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 27534.1ms, OverallIterations: 17, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1658.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6188.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 58 SDtfs, 31 SDslu, 18 SDs, 0 SdLazy, 313 SolverSat, 125 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 440.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 531.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=451occurred in iteration=11, InterpolantAutomatonStates: 78, 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: 53.5ms SsaConstructionTime, 450.5ms SatisfiabilityAnalysisTime, 1209.5ms InterpolantComputationTime, 242 NumberOfCodeBlocks, 242 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 1524 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...