/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:34:43,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:34:43,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:34:43,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:34:43,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:34:43,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:34:43,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:34:43,373 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 00:34:43,411 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:34:43,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:34:43,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:34:43,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:34:43,418 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:34:43,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:34:43,419 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:34:43,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:34:43,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:34:43,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:34:43,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:34:43,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:34:43,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:34:43,424 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:34:43,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:34:43,425 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:34:43,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:34:43,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:34:43,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:34:43,427 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:34:43,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:34:43,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:34:43,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:34:43,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:34:43,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:34:43,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:34:43,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:34:43,431 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:34:43,432 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:34:43,432 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:34:43,433 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:34:44,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:34:44,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:34:44,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:34:44,081 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:34:44,082 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:34:44,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2021-04-29 00:34:44,238 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4b731814/e4d1576467ef442f9196f48edea6e437/FLAGf46337115 [2021-04-29 00:34:45,376 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:34:45,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2021-04-29 00:34:45,405 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4b731814/e4d1576467ef442f9196f48edea6e437/FLAGf46337115 [2021-04-29 00:34:45,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4b731814/e4d1576467ef442f9196f48edea6e437 [2021-04-29 00:34:45,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:34:45,577 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:34:45,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:34:45,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:34:45,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:34:45,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:34:45" (1/1) ... [2021-04-29 00:34:45,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a672cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:34:45, skipping insertion in model container [2021-04-29 00:34:45,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:34:45" (1/1) ... [2021-04-29 00:34:45,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:34:45,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:34:46,095 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/safe028_pso.oepc.i[950,963] [2021-04-29 00:34:46,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:34:46,420 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:34:46,447 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/safe028_pso.oepc.i[950,963] [2021-04-29 00:34:46,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:34:46,717 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:34:46,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:34:46 WrapperNode [2021-04-29 00:34:46,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:34:46,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:34:46,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:34:46,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:34:46,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:34:46" (1/1) ... [2021-04-29 00:34:46,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:34:46" (1/1) ... [2021-04-29 00:34:46,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:34:46,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:34:46,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:34:46,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:34:46,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:34:46" (1/1) ... [2021-04-29 00:34:46,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:34:46" (1/1) ... [2021-04-29 00:34:46,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:34:46" (1/1) ... [2021-04-29 00:34:46,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:34:46" (1/1) ... [2021-04-29 00:34:46,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:34:46" (1/1) ... [2021-04-29 00:34:46,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:34:46" (1/1) ... [2021-04-29 00:34:46,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:34:46" (1/1) ... [2021-04-29 00:34:46,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:34:46,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:34:46,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:34:46,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:34:46,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:34:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:34:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:34:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:34:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:34:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:34:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:34:47,077 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:34:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:34:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:34:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:34:47,079 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:34:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:34:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:34:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:34:47,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:34:47,083 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:34:47,780 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:34:47,781 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:34:47,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:34:47 BoogieIcfgContainer [2021-04-29 00:34:47,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:34:47,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:34:47,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:34:47,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:34:47,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:34:45" (1/3) ... [2021-04-29 00:34:47,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cb81d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:34:47, skipping insertion in model container [2021-04-29 00:34:47,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:34:46" (2/3) ... [2021-04-29 00:34:47,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cb81d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:34:47, skipping insertion in model container [2021-04-29 00:34:47,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:34:47" (3/3) ... [2021-04-29 00:34:47,799 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc.i [2021-04-29 00:34:47,810 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:34:47,818 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:34:47,819 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:34:47,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,870 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,871 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,871 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,872 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,872 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,872 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,872 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,874 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,874 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,874 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,875 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,875 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,875 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,875 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,875 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,877 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,877 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,877 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,877 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,878 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,878 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,878 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,878 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,884 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,884 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,885 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,885 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,894 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,894 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,897 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,897 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,897 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,898 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:34:47,900 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:34:47,931 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:34:47,968 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:34:47,968 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:34:47,969 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:34:47,969 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:34:47,969 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:34:47,969 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:34:47,969 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:34:47,969 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:34:47,988 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-04-29 00:34:48,042 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-04-29 00:34:48,043 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:34:48,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-04-29 00:34:48,050 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-04-29 00:34:48,056 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-04-29 00:34:48,058 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:34:48,081 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-29 00:34:48,089 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-29 00:34:48,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-04-29 00:34:48,118 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-04-29 00:34:48,120 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:34:48,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-04-29 00:34:48,132 INFO L146 LiptonReduction]: Number of co-enabled transitions 804 [2021-04-29 00:34:53,205 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:34:53,381 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:34:53,594 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:34:53,826 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:34:54,051 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:34:54,270 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:34:54,482 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:34:54,666 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:34:54,912 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:34:55,178 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:34:55,379 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:34:55,538 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:34:55,721 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:34:55,904 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:34:56,364 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-04-29 00:34:56,466 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 00:34:56,704 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-04-29 00:34:56,811 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 00:34:58,356 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-04-29 00:34:58,463 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-29 00:34:58,682 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-04-29 00:34:59,429 INFO L158 LiptonReduction]: Checked pairs total: 5030 [2021-04-29 00:34:59,430 INFO L160 LiptonReduction]: Total number of compositions: 89 [2021-04-29 00:34:59,433 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11376 [2021-04-29 00:34:59,454 INFO L129 PetriNetUnfolder]: 0/62 cut-off events. [2021-04-29 00:34:59,454 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:34:59,454 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:34:59,455 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:34:59,456 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:34:59,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:34:59,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1058312694, now seen corresponding path program 1 times [2021-04-29 00:34:59,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:34:59,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142494372] [2021-04-29 00:34:59,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:34:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:34:59,881 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:34:59,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:34:59,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:34:59,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142494372] [2021-04-29 00:34:59,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:34:59,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:34:59,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986962187] [2021-04-29 00:34:59,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:34:59,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:34:59,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:34:59,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:34:59,933 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 163 [2021-04-29 00:34:59,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 67 transitions, 143 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:34:59,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:34:59,937 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 163 [2021-04-29 00:34:59,939 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:35:00,060 INFO L129 PetriNetUnfolder]: 47/194 cut-off events. [2021-04-29 00:35:00,060 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:35:00,061 INFO L84 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 194 events. 47/194 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1024 event pairs, 21 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 267. Up to 89 conditions per place. [2021-04-29 00:35:00,063 INFO L132 encePairwiseOnDemand]: 147/163 looper letters, 4 selfloop transitions, 3 changer transitions 36/74 dead transitions. [2021-04-29 00:35:00,064 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 74 transitions, 217 flow [2021-04-29 00:35:00,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:35:00,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:35:00,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2021-04-29 00:35:00,083 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7832310838445807 [2021-04-29 00:35:00,084 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2021-04-29 00:35:00,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2021-04-29 00:35:00,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:35:00,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2021-04-29 00:35:00,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:00,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 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) [2021-04-29 00:35:00,102 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 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) [2021-04-29 00:35:00,105 INFO L185 Difference]: Start difference. First operand has 77 places, 67 transitions, 143 flow. Second operand 3 states and 383 transitions. [2021-04-29 00:35:00,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 74 transitions, 217 flow [2021-04-29 00:35:00,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 74 transitions, 214 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:35:00,112 INFO L241 Difference]: Finished difference. Result has 77 places, 38 transitions, 97 flow [2021-04-29 00:35:00,114 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=77, PETRI_TRANSITIONS=38} [2021-04-29 00:35:00,115 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, 0 predicate places. [2021-04-29 00:35:00,116 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:00,116 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 38 transitions, 97 flow [2021-04-29 00:35:00,116 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 38 transitions, 97 flow [2021-04-29 00:35:00,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 38 transitions, 97 flow [2021-04-29 00:35:00,125 INFO L129 PetriNetUnfolder]: 3/50 cut-off events. [2021-04-29 00:35:00,125 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:35:00,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 50 events. 3/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 165 event pairs, 1 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 63. Up to 10 conditions per place. [2021-04-29 00:35:00,127 INFO L146 LiptonReduction]: Number of co-enabled transitions 764 [2021-04-29 00:35:00,162 INFO L158 LiptonReduction]: Checked pairs total: 393 [2021-04-29 00:35:00,162 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:35:00,162 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-04-29 00:35:00,166 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 97 flow [2021-04-29 00:35:00,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:00,167 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:35:00,167 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:35:00,167 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:35:00,167 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:35:00,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:35:00,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1552070370, now seen corresponding path program 1 times [2021-04-29 00:35:00,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:35:00,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064814409] [2021-04-29 00:35:00,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:35:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:35:00,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:00,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:00,270 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:35:00,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:35:00,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:35:00,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064814409] [2021-04-29 00:35:00,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:35:00,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:35:00,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787076784] [2021-04-29 00:35:00,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:35:00,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:35:00,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:35:00,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:35:00,284 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 163 [2021-04-29 00:35:00,285 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:00,285 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:35:00,285 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 163 [2021-04-29 00:35:00,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:35:00,332 INFO L129 PetriNetUnfolder]: 24/110 cut-off events. [2021-04-29 00:35:00,332 INFO L130 PetriNetUnfolder]: For 19/29 co-relation queries the response was YES. [2021-04-29 00:35:00,333 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 110 events. 24/110 cut-off events. For 19/29 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 521 event pairs, 3 based on Foata normal form. 8/80 useless extension candidates. Maximal degree in co-relation 190. Up to 30 conditions per place. [2021-04-29 00:35:00,334 INFO L132 encePairwiseOnDemand]: 157/163 looper letters, 8 selfloop transitions, 11 changer transitions 0/49 dead transitions. [2021-04-29 00:35:00,335 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 49 transitions, 173 flow [2021-04-29 00:35:00,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:35:00,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:35:00,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 559 transitions. [2021-04-29 00:35:00,339 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6858895705521473 [2021-04-29 00:35:00,339 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 559 transitions. [2021-04-29 00:35:00,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 559 transitions. [2021-04-29 00:35:00,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:35:00,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 559 transitions. [2021-04-29 00:35:00,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.8) internal successors, (559), 5 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:00,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:00,348 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:00,348 INFO L185 Difference]: Start difference. First operand has 46 places, 38 transitions, 97 flow. Second operand 5 states and 559 transitions. [2021-04-29 00:35:00,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 49 transitions, 173 flow [2021-04-29 00:35:00,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 49 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:35:00,351 INFO L241 Difference]: Finished difference. Result has 52 places, 46 transitions, 174 flow [2021-04-29 00:35:00,351 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=174, PETRI_PLACES=52, PETRI_TRANSITIONS=46} [2021-04-29 00:35:00,352 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -25 predicate places. [2021-04-29 00:35:00,352 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:00,352 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 46 transitions, 174 flow [2021-04-29 00:35:00,353 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 46 transitions, 174 flow [2021-04-29 00:35:00,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 46 transitions, 174 flow [2021-04-29 00:35:00,369 INFO L129 PetriNetUnfolder]: 17/106 cut-off events. [2021-04-29 00:35:00,369 INFO L130 PetriNetUnfolder]: For 37/43 co-relation queries the response was YES. [2021-04-29 00:35:00,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 106 events. 17/106 cut-off events. For 37/43 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 523 event pairs, 4 based on Foata normal form. 1/67 useless extension candidates. Maximal degree in co-relation 212. Up to 29 conditions per place. [2021-04-29 00:35:00,373 INFO L146 LiptonReduction]: Number of co-enabled transitions 1014 [2021-04-29 00:35:00,385 INFO L158 LiptonReduction]: Checked pairs total: 187 [2021-04-29 00:35:00,385 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:35:00,386 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-04-29 00:35:00,387 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 46 transitions, 174 flow [2021-04-29 00:35:00,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:00,388 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:35:00,388 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:35:00,389 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:35:00,389 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:35:00,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:35:00,389 INFO L82 PathProgramCache]: Analyzing trace with hash -286326289, now seen corresponding path program 1 times [2021-04-29 00:35:00,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:35:00,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421353604] [2021-04-29 00:35:00,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:35:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:35:00,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:00,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:00,447 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:35:00,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:35:00,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:35:00,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421353604] [2021-04-29 00:35:00,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:35:00,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:35:00,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702087193] [2021-04-29 00:35:00,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:35:00,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:35:00,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:35:00,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:35:00,468 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 163 [2021-04-29 00:35:00,469 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 46 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:00,469 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:35:00,469 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 163 [2021-04-29 00:35:00,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:35:00,514 INFO L129 PetriNetUnfolder]: 17/90 cut-off events. [2021-04-29 00:35:00,514 INFO L130 PetriNetUnfolder]: For 70/84 co-relation queries the response was YES. [2021-04-29 00:35:00,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 90 events. 17/90 cut-off events. For 70/84 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 408 event pairs, 0 based on Foata normal form. 3/61 useless extension candidates. Maximal degree in co-relation 218. Up to 30 conditions per place. [2021-04-29 00:35:00,522 INFO L132 encePairwiseOnDemand]: 160/163 looper letters, 9 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2021-04-29 00:35:00,523 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 46 transitions, 202 flow [2021-04-29 00:35:00,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:35:00,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:35:00,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2021-04-29 00:35:00,525 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7321063394683026 [2021-04-29 00:35:00,526 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 358 transitions. [2021-04-29 00:35:00,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 358 transitions. [2021-04-29 00:35:00,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:35:00,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 358 transitions. [2021-04-29 00:35:00,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:00,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 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) [2021-04-29 00:35:00,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 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) [2021-04-29 00:35:00,531 INFO L185 Difference]: Start difference. First operand has 52 places, 46 transitions, 174 flow. Second operand 3 states and 358 transitions. [2021-04-29 00:35:00,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 46 transitions, 202 flow [2021-04-29 00:35:00,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 46 transitions, 196 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:35:00,538 INFO L241 Difference]: Finished difference. Result has 54 places, 46 transitions, 185 flow [2021-04-29 00:35:00,538 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=185, PETRI_PLACES=54, PETRI_TRANSITIONS=46} [2021-04-29 00:35:00,538 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -23 predicate places. [2021-04-29 00:35:00,539 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:00,539 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 46 transitions, 185 flow [2021-04-29 00:35:00,540 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 46 transitions, 185 flow [2021-04-29 00:35:00,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 46 transitions, 185 flow [2021-04-29 00:35:00,563 INFO L129 PetriNetUnfolder]: 16/92 cut-off events. [2021-04-29 00:35:00,563 INFO L130 PetriNetUnfolder]: For 60/67 co-relation queries the response was YES. [2021-04-29 00:35:00,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 92 events. 16/92 cut-off events. For 60/67 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 464 event pairs, 3 based on Foata normal form. 2/60 useless extension candidates. Maximal degree in co-relation 194. Up to 27 conditions per place. [2021-04-29 00:35:00,567 INFO L146 LiptonReduction]: Number of co-enabled transitions 1012 [2021-04-29 00:35:00,578 INFO L158 LiptonReduction]: Checked pairs total: 187 [2021-04-29 00:35:00,578 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:35:00,579 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-04-29 00:35:00,580 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 46 transitions, 185 flow [2021-04-29 00:35:00,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:00,581 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:35:00,581 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:35:00,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:35:00,582 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:35:00,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:35:00,582 INFO L82 PathProgramCache]: Analyzing trace with hash -868809307, now seen corresponding path program 1 times [2021-04-29 00:35:00,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:35:00,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165020066] [2021-04-29 00:35:00,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:35:00,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:35:00,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:00,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:00,641 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:35:00,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:35:00,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:35:00,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165020066] [2021-04-29 00:35:00,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:35:00,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:35:00,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796998584] [2021-04-29 00:35:00,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:35:00,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:35:00,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:35:00,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:35:00,660 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 163 [2021-04-29 00:35:00,661 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 46 transitions, 185 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:00,661 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:35:00,661 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 163 [2021-04-29 00:35:00,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:35:01,369 INFO L129 PetriNetUnfolder]: 3236/5496 cut-off events. [2021-04-29 00:35:01,369 INFO L130 PetriNetUnfolder]: For 2515/3116 co-relation queries the response was YES. [2021-04-29 00:35:01,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11545 conditions, 5496 events. 3236/5496 cut-off events. For 2515/3116 co-relation queries the response was YES. Maximal size of possible extension queue 1161. Compared 45688 event pairs, 1404 based on Foata normal form. 132/1563 useless extension candidates. Maximal degree in co-relation 11529. Up to 3556 conditions per place. [2021-04-29 00:35:01,518 INFO L132 encePairwiseOnDemand]: 145/163 looper letters, 30 selfloop transitions, 28 changer transitions 0/82 dead transitions. [2021-04-29 00:35:01,518 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 82 transitions, 373 flow [2021-04-29 00:35:01,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:35:01,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:35:01,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 586 transitions. [2021-04-29 00:35:01,521 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7190184049079754 [2021-04-29 00:35:01,522 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 586 transitions. [2021-04-29 00:35:01,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 586 transitions. [2021-04-29 00:35:01,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:35:01,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 586 transitions. [2021-04-29 00:35:01,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 117.2) internal successors, (586), 5 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:01,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:01,529 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:01,529 INFO L185 Difference]: Start difference. First operand has 54 places, 46 transitions, 185 flow. Second operand 5 states and 586 transitions. [2021-04-29 00:35:01,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 82 transitions, 373 flow [2021-04-29 00:35:01,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 82 transitions, 363 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:35:01,535 INFO L241 Difference]: Finished difference. Result has 59 places, 72 transitions, 386 flow [2021-04-29 00:35:01,535 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=386, PETRI_PLACES=59, PETRI_TRANSITIONS=72} [2021-04-29 00:35:01,536 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -18 predicate places. [2021-04-29 00:35:01,536 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:01,536 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 72 transitions, 386 flow [2021-04-29 00:35:01,537 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 72 transitions, 386 flow [2021-04-29 00:35:01,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 72 transitions, 386 flow [2021-04-29 00:35:02,120 INFO L129 PetriNetUnfolder]: 3085/5400 cut-off events. [2021-04-29 00:35:02,120 INFO L130 PetriNetUnfolder]: For 2928/5286 co-relation queries the response was YES. [2021-04-29 00:35:02,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15543 conditions, 5400 events. 3085/5400 cut-off events. For 2928/5286 co-relation queries the response was YES. Maximal size of possible extension queue 1626. Compared 48533 event pairs, 1410 based on Foata normal form. 13/1465 useless extension candidates. Maximal degree in co-relation 15526. Up to 4917 conditions per place. [2021-04-29 00:35:02,229 INFO L146 LiptonReduction]: Number of co-enabled transitions 1318 [2021-04-29 00:35:02,248 INFO L158 LiptonReduction]: Checked pairs total: 260 [2021-04-29 00:35:02,248 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:35:02,248 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 712 [2021-04-29 00:35:02,250 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 72 transitions, 386 flow [2021-04-29 00:35:02,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:02,251 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:35:02,251 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:35:02,251 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:35:02,251 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:35:02,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:35:02,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1202019182, now seen corresponding path program 1 times [2021-04-29 00:35:02,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:35:02,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203780758] [2021-04-29 00:35:02,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:35:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:35:02,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:02,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:02,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:02,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:02,351 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:35:02,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:35:02,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:35:02,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203780758] [2021-04-29 00:35:02,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:35:02,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:35:02,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496233218] [2021-04-29 00:35:02,363 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:35:02,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:35:02,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:35:02,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:35:02,365 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 163 [2021-04-29 00:35:02,366 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 72 transitions, 386 flow. Second operand has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:02,366 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:35:02,366 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 163 [2021-04-29 00:35:02,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:35:03,267 INFO L129 PetriNetUnfolder]: 2897/5628 cut-off events. [2021-04-29 00:35:03,267 INFO L130 PetriNetUnfolder]: For 5603/13936 co-relation queries the response was YES. [2021-04-29 00:35:03,298 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21520 conditions, 5628 events. 2897/5628 cut-off events. For 5603/13936 co-relation queries the response was YES. Maximal size of possible extension queue 1407. Compared 52703 event pairs, 270 based on Foata normal form. 180/1876 useless extension candidates. Maximal degree in co-relation 21501. Up to 5031 conditions per place. [2021-04-29 00:35:03,324 INFO L132 encePairwiseOnDemand]: 145/163 looper letters, 22 selfloop transitions, 54 changer transitions 9/109 dead transitions. [2021-04-29 00:35:03,324 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 109 transitions, 755 flow [2021-04-29 00:35:03,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:35:03,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:35:03,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 822 transitions. [2021-04-29 00:35:03,328 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7204206836108676 [2021-04-29 00:35:03,328 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 822 transitions. [2021-04-29 00:35:03,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 822 transitions. [2021-04-29 00:35:03,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:35:03,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 822 transitions. [2021-04-29 00:35:03,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 117.42857142857143) internal successors, (822), 7 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:03,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 163.0) internal successors, (1304), 8 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:03,339 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 163.0) internal successors, (1304), 8 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:03,339 INFO L185 Difference]: Start difference. First operand has 59 places, 72 transitions, 386 flow. Second operand 7 states and 822 transitions. [2021-04-29 00:35:03,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 109 transitions, 755 flow [2021-04-29 00:35:03,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 109 transitions, 755 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:35:03,393 INFO L241 Difference]: Finished difference. Result has 68 places, 98 transitions, 737 flow [2021-04-29 00:35:03,394 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=737, PETRI_PLACES=68, PETRI_TRANSITIONS=98} [2021-04-29 00:35:03,394 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2021-04-29 00:35:03,394 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:03,394 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 98 transitions, 737 flow [2021-04-29 00:35:03,395 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 98 transitions, 737 flow [2021-04-29 00:35:03,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 98 transitions, 737 flow [2021-04-29 00:35:04,172 INFO L129 PetriNetUnfolder]: 3003/5743 cut-off events. [2021-04-29 00:35:04,173 INFO L130 PetriNetUnfolder]: For 11524/26027 co-relation queries the response was YES. [2021-04-29 00:35:04,211 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24742 conditions, 5743 events. 3003/5743 cut-off events. For 11524/26027 co-relation queries the response was YES. Maximal size of possible extension queue 1543. Compared 55699 event pairs, 288 based on Foata normal form. 8/1672 useless extension candidates. Maximal degree in co-relation 24720. Up to 5196 conditions per place. [2021-04-29 00:35:04,286 INFO L146 LiptonReduction]: Number of co-enabled transitions 1564 [2021-04-29 00:35:04,317 INFO L158 LiptonReduction]: Checked pairs total: 330 [2021-04-29 00:35:04,317 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:35:04,317 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 923 [2021-04-29 00:35:04,323 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 98 transitions, 737 flow [2021-04-29 00:35:04,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:04,324 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:35:04,324 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:35:04,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:35:04,324 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:35:04,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:35:04,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1480343038, now seen corresponding path program 1 times [2021-04-29 00:35:04,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:35:04,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976266540] [2021-04-29 00:35:04,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:35:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:35:04,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:04,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:04,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:04,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:04,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:35:04,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976266540] [2021-04-29 00:35:04,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:35:04,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:35:04,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623430056] [2021-04-29 00:35:04,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:35:04,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:35:04,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:35:04,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:35:04,386 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 163 [2021-04-29 00:35:04,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 98 transitions, 737 flow. Second operand has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:04,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:35:04,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 163 [2021-04-29 00:35:04,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:35:05,261 INFO L129 PetriNetUnfolder]: 3244/6821 cut-off events. [2021-04-29 00:35:05,261 INFO L130 PetriNetUnfolder]: For 19145/47929 co-relation queries the response was YES. [2021-04-29 00:35:05,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29143 conditions, 6821 events. 3244/6821 cut-off events. For 19145/47929 co-relation queries the response was YES. Maximal size of possible extension queue 2082. Compared 72006 event pairs, 522 based on Foata normal form. 106/1851 useless extension candidates. Maximal degree in co-relation 29119. Up to 6198 conditions per place. [2021-04-29 00:35:05,319 INFO L132 encePairwiseOnDemand]: 159/163 looper letters, 4 selfloop transitions, 5 changer transitions 15/100 dead transitions. [2021-04-29 00:35:05,320 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 100 transitions, 783 flow [2021-04-29 00:35:05,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:35:05,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:35:05,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 470 transitions. [2021-04-29 00:35:05,322 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7208588957055214 [2021-04-29 00:35:05,323 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 470 transitions. [2021-04-29 00:35:05,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 470 transitions. [2021-04-29 00:35:05,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:35:05,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 470 transitions. [2021-04-29 00:35:05,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:05,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 163.0) internal successors, (815), 5 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:05,328 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 163.0) internal successors, (815), 5 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:05,328 INFO L185 Difference]: Start difference. First operand has 68 places, 98 transitions, 737 flow. Second operand 4 states and 470 transitions. [2021-04-29 00:35:05,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 100 transitions, 783 flow [2021-04-29 00:35:05,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 100 transitions, 650 flow, removed 43 selfloop flow, removed 3 redundant places. [2021-04-29 00:35:05,803 INFO L241 Difference]: Finished difference. Result has 70 places, 85 transitions, 541 flow [2021-04-29 00:35:05,804 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=541, PETRI_PLACES=70, PETRI_TRANSITIONS=85} [2021-04-29 00:35:05,804 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -7 predicate places. [2021-04-29 00:35:05,804 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:05,805 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 85 transitions, 541 flow [2021-04-29 00:35:05,805 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 85 transitions, 541 flow [2021-04-29 00:35:05,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 85 transitions, 541 flow [2021-04-29 00:35:06,102 INFO L129 PetriNetUnfolder]: 1254/2810 cut-off events. [2021-04-29 00:35:06,102 INFO L130 PetriNetUnfolder]: For 4883/5041 co-relation queries the response was YES. [2021-04-29 00:35:06,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10012 conditions, 2810 events. 1254/2810 cut-off events. For 4883/5041 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 28498 event pairs, 289 based on Foata normal form. 6/793 useless extension candidates. Maximal degree in co-relation 9988. Up to 1566 conditions per place. [2021-04-29 00:35:06,145 INFO L146 LiptonReduction]: Number of co-enabled transitions 998 [2021-04-29 00:35:06,177 INFO L158 LiptonReduction]: Checked pairs total: 183 [2021-04-29 00:35:06,177 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:35:06,177 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 373 [2021-04-29 00:35:06,179 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 85 transitions, 541 flow [2021-04-29 00:35:06,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:06,180 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:35:06,180 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:35:06,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:35:06,180 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:35:06,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:35:06,181 INFO L82 PathProgramCache]: Analyzing trace with hash 152293254, now seen corresponding path program 1 times [2021-04-29 00:35:06,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:35:06,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177750923] [2021-04-29 00:35:06,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:35:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:35:06,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:06,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:06,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:06,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:06,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:06,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:06,241 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:35:06,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:35:06,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:35:06,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177750923] [2021-04-29 00:35:06,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:35:06,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:35:06,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582407173] [2021-04-29 00:35:06,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:35:06,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:35:06,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:35:06,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:35:06,253 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 163 [2021-04-29 00:35:06,254 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 85 transitions, 541 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:06,254 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:35:06,254 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 163 [2021-04-29 00:35:06,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:35:06,760 INFO L129 PetriNetUnfolder]: 957/2495 cut-off events. [2021-04-29 00:35:06,760 INFO L130 PetriNetUnfolder]: For 8000/28394 co-relation queries the response was YES. [2021-04-29 00:35:06,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10878 conditions, 2495 events. 957/2495 cut-off events. For 8000/28394 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 26021 event pairs, 0 based on Foata normal form. 120/806 useless extension candidates. Maximal degree in co-relation 10852. Up to 1263 conditions per place. [2021-04-29 00:35:06,781 INFO L132 encePairwiseOnDemand]: 145/163 looper letters, 5 selfloop transitions, 64 changer transitions 19/105 dead transitions. [2021-04-29 00:35:06,782 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 105 transitions, 844 flow [2021-04-29 00:35:06,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 00:35:06,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 00:35:06,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1034 transitions. [2021-04-29 00:35:06,787 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7048398091342877 [2021-04-29 00:35:06,787 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1034 transitions. [2021-04-29 00:35:06,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1034 transitions. [2021-04-29 00:35:06,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:35:06,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1034 transitions. [2021-04-29 00:35:06,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 114.88888888888889) internal successors, (1034), 9 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:06,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 163.0) internal successors, (1630), 10 states have internal predecessors, (1630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:06,798 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 163.0) internal successors, (1630), 10 states have internal predecessors, (1630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:06,798 INFO L185 Difference]: Start difference. First operand has 69 places, 85 transitions, 541 flow. Second operand 9 states and 1034 transitions. [2021-04-29 00:35:06,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 105 transitions, 844 flow [2021-04-29 00:35:06,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 105 transitions, 819 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-04-29 00:35:06,866 INFO L241 Difference]: Finished difference. Result has 74 places, 84 transitions, 684 flow [2021-04-29 00:35:06,867 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=684, PETRI_PLACES=74, PETRI_TRANSITIONS=84} [2021-04-29 00:35:06,867 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -3 predicate places. [2021-04-29 00:35:06,867 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:06,868 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 84 transitions, 684 flow [2021-04-29 00:35:06,868 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 84 transitions, 684 flow [2021-04-29 00:35:06,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 84 transitions, 684 flow [2021-04-29 00:35:07,026 INFO L129 PetriNetUnfolder]: 426/1604 cut-off events. [2021-04-29 00:35:07,026 INFO L130 PetriNetUnfolder]: For 3009/5399 co-relation queries the response was YES. [2021-04-29 00:35:07,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7203 conditions, 1604 events. 426/1604 cut-off events. For 3009/5399 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 18926 event pairs, 1 based on Foata normal form. 6/462 useless extension candidates. Maximal degree in co-relation 7180. Up to 1116 conditions per place. [2021-04-29 00:35:07,056 INFO L146 LiptonReduction]: Number of co-enabled transitions 970 [2021-04-29 00:35:07,081 INFO L158 LiptonReduction]: Checked pairs total: 174 [2021-04-29 00:35:07,081 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:35:07,081 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 214 [2021-04-29 00:35:07,082 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 84 transitions, 684 flow [2021-04-29 00:35:07,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:07,083 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:35:07,084 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:35:07,084 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:35:07,084 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:35:07,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:35:07,085 INFO L82 PathProgramCache]: Analyzing trace with hash 638007214, now seen corresponding path program 1 times [2021-04-29 00:35:07,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:35:07,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44153434] [2021-04-29 00:35:07,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:35:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:35:07,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:07,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:35:07,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:07,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:07,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:07,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:07,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:35:07,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44153434] [2021-04-29 00:35:07,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:35:07,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:35:07,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358239934] [2021-04-29 00:35:07,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:35:07,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:35:07,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:35:07,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:35:07,149 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 163 [2021-04-29 00:35:07,149 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 84 transitions, 684 flow. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:07,150 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:35:07,150 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 163 [2021-04-29 00:35:07,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:35:07,409 INFO L129 PetriNetUnfolder]: 657/2312 cut-off events. [2021-04-29 00:35:07,410 INFO L130 PetriNetUnfolder]: For 5985/14142 co-relation queries the response was YES. [2021-04-29 00:35:07,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10422 conditions, 2312 events. 657/2312 cut-off events. For 5985/14142 co-relation queries the response was YES. Maximal size of possible extension queue 894. Compared 27429 event pairs, 0 based on Foata normal form. 37/621 useless extension candidates. Maximal degree in co-relation 10397. Up to 1602 conditions per place. [2021-04-29 00:35:07,425 INFO L132 encePairwiseOnDemand]: 160/163 looper letters, 3 selfloop transitions, 1 changer transitions 42/85 dead transitions. [2021-04-29 00:35:07,425 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 85 transitions, 700 flow [2021-04-29 00:35:07,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:35:07,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:35:07,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 478 transitions. [2021-04-29 00:35:07,428 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7331288343558282 [2021-04-29 00:35:07,428 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 478 transitions. [2021-04-29 00:35:07,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 478 transitions. [2021-04-29 00:35:07,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:35:07,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 478 transitions. [2021-04-29 00:35:07,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 119.5) internal successors, (478), 4 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:07,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 163.0) internal successors, (815), 5 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:07,433 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 163.0) internal successors, (815), 5 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:07,433 INFO L185 Difference]: Start difference. First operand has 71 places, 84 transitions, 684 flow. Second operand 4 states and 478 transitions. [2021-04-29 00:35:07,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 85 transitions, 700 flow [2021-04-29 00:35:07,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 85 transitions, 508 flow, removed 43 selfloop flow, removed 8 redundant places. [2021-04-29 00:35:07,693 INFO L241 Difference]: Finished difference. Result has 68 places, 43 transitions, 237 flow [2021-04-29 00:35:07,693 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=237, PETRI_PLACES=68, PETRI_TRANSITIONS=43} [2021-04-29 00:35:07,693 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2021-04-29 00:35:07,693 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:07,694 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 43 transitions, 237 flow [2021-04-29 00:35:07,694 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 43 transitions, 237 flow [2021-04-29 00:35:07,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 43 transitions, 237 flow [2021-04-29 00:35:07,716 INFO L129 PetriNetUnfolder]: 90/235 cut-off events. [2021-04-29 00:35:07,716 INFO L130 PetriNetUnfolder]: For 1090/1090 co-relation queries the response was YES. [2021-04-29 00:35:07,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 848 conditions, 235 events. 90/235 cut-off events. For 1090/1090 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 1362 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 827. Up to 109 conditions per place. [2021-04-29 00:35:07,719 INFO L146 LiptonReduction]: Number of co-enabled transitions 258 [2021-04-29 00:35:07,750 INFO L158 LiptonReduction]: Checked pairs total: 20 [2021-04-29 00:35:07,750 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 00:35:07,750 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-04-29 00:35:07,752 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 43 transitions, 240 flow [2021-04-29 00:35:07,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:07,752 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:35:07,752 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:35:07,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:35:07,753 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:35:07,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:35:07,753 INFO L82 PathProgramCache]: Analyzing trace with hash -137925066, now seen corresponding path program 1 times [2021-04-29 00:35:07,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:35:07,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801700813] [2021-04-29 00:35:07,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:35:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:35:07,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:07,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:35:07,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:07,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:07,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:07,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:07,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:35:07,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801700813] [2021-04-29 00:35:07,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:35:07,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:35:07,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827049714] [2021-04-29 00:35:07,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:35:07,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:35:07,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:35:07,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:35:07,797 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 164 [2021-04-29 00:35:07,797 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 43 transitions, 240 flow. Second operand has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:07,798 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:35:07,798 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 164 [2021-04-29 00:35:07,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:35:07,830 INFO L129 PetriNetUnfolder]: 90/208 cut-off events. [2021-04-29 00:35:07,831 INFO L130 PetriNetUnfolder]: For 1345/1349 co-relation queries the response was YES. [2021-04-29 00:35:07,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 586 conditions, 208 events. 90/208 cut-off events. For 1345/1349 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1007 event pairs, 0 based on Foata normal form. 29/120 useless extension candidates. Maximal degree in co-relation 570. Up to 109 conditions per place. [2021-04-29 00:35:07,832 INFO L132 encePairwiseOnDemand]: 161/164 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2021-04-29 00:35:07,832 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 42 transitions, 228 flow [2021-04-29 00:35:07,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:35:07,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:35:07,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 457 transitions. [2021-04-29 00:35:07,834 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6966463414634146 [2021-04-29 00:35:07,834 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 457 transitions. [2021-04-29 00:35:07,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 457 transitions. [2021-04-29 00:35:07,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:35:07,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 457 transitions. [2021-04-29 00:35:07,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:07,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:07,839 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:07,839 INFO L185 Difference]: Start difference. First operand has 53 places, 43 transitions, 240 flow. Second operand 4 states and 457 transitions. [2021-04-29 00:35:07,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 42 transitions, 228 flow [2021-04-29 00:35:07,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 42 transitions, 220 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-29 00:35:07,841 INFO L241 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2021-04-29 00:35:07,841 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2021-04-29 00:35:07,842 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -26 predicate places. [2021-04-29 00:35:07,842 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:07,842 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 0 transitions, 0 flow [2021-04-29 00:35:07,842 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 0 transitions, 0 flow [2021-04-29 00:35:07,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:35:07,843 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:35:07,843 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:35:07,843 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 00:35:07,843 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:35:07,843 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:35:07,844 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:35:07,844 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:35:07,845 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:35:07,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:07,845 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 00:35:07,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:35:07 BasicIcfg [2021-04-29 00:35:07,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:35:07,851 INFO L168 Benchmark]: Toolchain (without parser) took 22352.24 ms. Allocated memory was 302.0 MB in the beginning and 545.3 MB in the end (delta: 243.3 MB). Free memory was 275.2 MB in the beginning and 334.0 MB in the end (delta: -58.8 MB). Peak memory consumption was 186.3 MB. Max. memory is 16.0 GB. [2021-04-29 00:35:07,852 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 302.0 MB. Free memory was 269.7 MB in the beginning and 269.6 MB in the end (delta: 115.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:35:07,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1135.30 ms. Allocated memory is still 302.0 MB. Free memory was 272.0 MB in the beginning and 267.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. [2021-04-29 00:35:07,852 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.39 ms. Allocated memory is still 302.0 MB. Free memory was 267.7 MB in the beginning and 265.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:35:07,853 INFO L168 Benchmark]: Boogie Preprocessor took 71.42 ms. Allocated memory is still 302.0 MB. Free memory was 265.1 MB in the beginning and 263.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:35:07,853 INFO L168 Benchmark]: RCFGBuilder took 859.02 ms. Allocated memory is still 302.0 MB. Free memory was 263.5 MB in the beginning and 241.3 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:35:07,854 INFO L168 Benchmark]: TraceAbstraction took 20063.73 ms. Allocated memory was 302.0 MB in the beginning and 545.3 MB in the end (delta: 243.3 MB). Free memory was 241.3 MB in the beginning and 334.0 MB in the end (delta: -92.7 MB). Peak memory consumption was 151.3 MB. Max. memory is 16.0 GB. [2021-04-29 00:35:07,856 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 302.0 MB. Free memory was 269.7 MB in the beginning and 269.6 MB in the end (delta: 115.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1135.30 ms. Allocated memory is still 302.0 MB. Free memory was 272.0 MB in the beginning and 267.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 121.39 ms. Allocated memory is still 302.0 MB. Free memory was 267.7 MB in the beginning and 265.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 71.42 ms. Allocated memory is still 302.0 MB. Free memory was 265.1 MB in the beginning and 263.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 859.02 ms. Allocated memory is still 302.0 MB. Free memory was 263.5 MB in the beginning and 241.3 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 20063.73 ms. Allocated memory was 302.0 MB in the beginning and 545.3 MB in the end (delta: 243.3 MB). Free memory was 241.3 MB in the beginning and 334.0 MB in the end (delta: -92.7 MB). Peak memory consumption was 151.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11340.9ms, 68 PlacesBefore, 77 PlacesAfterwards, 59 TransitionsBefore, 67 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 6 FixpointIterations, 44 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 89 TotalNumberOfCompositions, 5030 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2164, positive: 2012, positive conditional: 2012, positive unconditional: 0, negative: 152, negative conditional: 152, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 976, positive: 924, positive conditional: 0, positive unconditional: 924, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 976, positive: 924, positive conditional: 0, positive unconditional: 924, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 976, positive: 898, positive conditional: 0, positive unconditional: 898, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 78, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 511, positive: 165, positive conditional: 0, positive unconditional: 165, negative: 347, negative conditional: 0, negative unconditional: 347, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2164, positive: 1088, positive conditional: 1088, positive unconditional: 0, negative: 100, negative conditional: 100, negative unconditional: 0, unknown: 976, unknown conditional: 976, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 966, Positive cache size: 914, Positive conditional cache size: 914, Positive unconditional cache size: 0, Negative cache size: 52, Negative conditional cache size: 52, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.7ms, 77 PlacesBefore, 46 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 764 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 393 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 99, positive: 84, positive conditional: 84, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 6, positive conditional: 1, positive unconditional: 5, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 6, positive conditional: 1, positive unconditional: 5, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 26, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 26, negative conditional: 8, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 99, positive: 78, positive conditional: 78, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 977, Positive cache size: 920, Positive conditional cache size: 920, Positive unconditional cache size: 0, Negative cache size: 57, Negative conditional cache size: 57, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.6ms, 52 PlacesBefore, 52 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 1014 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 187 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 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: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 982, Positive cache size: 924, Positive conditional cache size: 924, Positive unconditional cache size: 0, Negative cache size: 58, Negative conditional cache size: 58, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.1ms, 54 PlacesBefore, 54 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 1012 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 187 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 984, Positive cache size: 925, Positive conditional cache size: 925, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 711.7ms, 59 PlacesBefore, 59 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 1318 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 260 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, 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: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 984, Positive cache size: 925, Positive conditional cache size: 925, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 922.4ms, 68 PlacesBefore, 68 PlacesAfterwards, 98 TransitionsBefore, 98 TransitionsAfterwards, 1564 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 330 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, 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: 2, positive: 2, positive conditional: 1, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 8, positive conditional: 8, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 986, Positive cache size: 927, Positive conditional cache size: 927, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 372.3ms, 70 PlacesBefore, 69 PlacesAfterwards, 85 TransitionsBefore, 85 TransitionsAfterwards, 998 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 183 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 78, positive: 75, positive conditional: 75, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 17, positive conditional: 15, positive unconditional: 2, 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: 18, positive: 17, positive conditional: 15, positive unconditional: 2, 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: 18, positive: 17, positive conditional: 0, positive unconditional: 17, 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: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 78, positive: 58, positive conditional: 58, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1004, Positive cache size: 944, Positive conditional cache size: 944, Positive unconditional cache size: 0, Negative cache size: 60, Negative conditional cache size: 60, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 213.0ms, 74 PlacesBefore, 71 PlacesAfterwards, 84 TransitionsBefore, 84 TransitionsAfterwards, 970 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 174 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 75, positive: 72, positive conditional: 72, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 18, 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: 18, positive: 18, positive conditional: 18, 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: 18, positive: 18, positive conditional: 0, positive unconditional: 18, 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: 75, positive: 54, positive conditional: 54, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1022, Positive cache size: 962, Positive conditional cache size: 962, Positive unconditional cache size: 0, Negative cache size: 60, Negative conditional cache size: 60, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.3ms, 68 PlacesBefore, 53 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 258 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 20 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, positive: 20, positive conditional: 14, positive unconditional: 6, 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: 20, positive: 20, positive conditional: 14, positive unconditional: 6, 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: 20, positive: 20, positive conditional: 0, positive unconditional: 20, 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: 20, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 20, unknown conditional: 20, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1042, Positive cache size: 982, Positive conditional cache size: 982, Positive unconditional cache size: 0, Negative cache size: 60, Negative conditional cache size: 60, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 51 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1042, Positive cache size: 982, Positive conditional cache size: 982, Positive unconditional cache size: 0, Negative cache size: 60, Negative conditional cache size: 60, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 19884.0ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 4868.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11472.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 62 SDtfs, 72 SDslu, 18 SDs, 0 SdLazy, 341 SolverSat, 117 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 340.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=737occurred in iteration=5, InterpolantAutomatonStates: 44, 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: 35.0ms SsaConstructionTime, 242.0ms SatisfiabilityAnalysisTime, 570.0ms InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 429 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...